Weather Prediction Center

National Oceanic and Atmospheric Administration

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
318 PM EDT Thu Jun 12 2025

Valid 00Z Fri Jun 13 2025 - 00Z Sun Jun 15 2025

...Heavy rain and instances of flash flooding possible across parts of the
Lower Mississippi Valley and Upper Midwest over the next few days...

...Severe weather potential most likely across the High Plains through
early this weekend...

...Above average warmth continues across the Intermountain West,
Southwest, and High Plains...


Mid-June weather pattern remains underway through early this weekend and
is expected to feature a large part of the central and eastern U.S. under
the potential for scattered thunderstorms, a few of which could contain
intense rainfall rates, damaging wind gusts, and hail. A single frontal
boundary stretching from the northern Mid-Atlantic by Friday morning
across the Midwest and into the northern High Plains will be the dividing
line between warm/humid to the south and cooler to the north. Along this
frontal boundary, numerous thunderstorms developing tonight and lingering
through Friday could create isolated to scattered instances of flash
flooding from the eastern Dakotas through central Minnesota. Further
south, more widely scattered thunderstorms are likely over the next
several days within the sultry summertime airmass stretching from the
southern Plains through the Southeast. More organized areas of
thunderstorms are possible tonight through Friday across the Lower
Mississippi Valley towards the western Gulf Coast. This follows extreme
rainfall amounts that occurred previously throughout parts of southeastern
Texas last night into early Thursday morning. Another focus for unsettled
weather on Friday and Saturday will be across the Mid-Atlantic, where the
lingering frontal boundary could become a focus for persistent
thunderstorm chances. While isolated damaging wind gusts and hail is
possible associated with these scattered storms in the central and eastern
U.S., the greatest potential for severe weather is forecast across the
High Plains as storms develop each afternoon and strengthen.

The temperature outlook in the short range time period (valid ending
Sunday morning) contains above average warmth across much of the
Intermountain West, High Plains, and Southwest as upper ridging remains in
place next to troughing over the Pacific Northwest. Widespread highs into
the 90s are anticipated, with triple digits across the Desert Southwest
extending from southeast California to southern New Mexico. Extreme Heat
Watches are in effect beginning on Saturday for southern Arizona and parts
of the interior southern California Desert due to the potential for
maximum temperatures to reach 114 degrees. Meanwhile, much cooler
temperatures will be confined to the northern Plains, Upper Midwest, Great
Lakes, and New England to the north of the aforementioned frontal
boundary. High temperatures here will struggle to reach higher than the
60s.

Snell

Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php

Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
313 PM EDT Thu Jun 12 2025

Valid 12Z Sun Jun 15 2025 - 12Z Thu Jun 19 2025


...Heavy rain/flash flood threat from the south-central U.S. to
the Tennessee/Ohio Valleys and Mid-Atlantic Sunday to Monday...

...Multi-day Heavy Convective Rainfall threat for the northern
Plains/Upper Midwest next week...

...Southwest High Heat in to early next week and a hot/humid
airmass for the South next week...


...General Overview...

Slow moving shortwave trough energy aloft will gradually shift over
the south-central to eastern U.S. this weekend into next week with
periodic reloading from impulse energy digging to the lee of an
amplified upstream ridge building from the Southwest to the central
U.S.. This will keep the weather unsettled through much of the
period with widespread showers and thunderstorms to include
difficult to pinpoint cell focus, but offers quite viable threats
for heavy to excessive rainfall over a broad area. Shortwave energy
originating from troughing over the Northwest will meanwhile slide
over the northern tier states with accompanying showers and
storms. An upper trough will work toward the Southwest and weaken
into next midweek, with another trough taking shape off the
Northwest mid- later next week. Upper ridging will focus high heat
over the Southwest mainly Sunday and Monday, with sticky heat
spreading in earnest across much of The South next week. There are
growing signals for an enhanced tropical moisture feed from the
Gulf to northeast Mexico and South Texas in a week to monitor for
signs of system development out from the Bay of Campeche/vicinity.

...Guidance/Predictability Assessment...

Guidance remains in reasonably good agreement with most of the
synoptic scale features and offers good pattern predictability.
However, guidance continues to suffer from widespread smaller
scale system and convective focus variances. Accordingly, the WPC
medium range product suite was mainly derived from a blend of
GFS/ECMWF/CMC/UKMET model and GEFS/ECMWF/Canadian ensemble mean
solutions along with the compatible National Blend of Models and
WPC continuity through medium range time scales. The blend process
tends to smooth system detail consistent with feature probability.
Applied manual adjustments to ensure sufficient QPF as warranted
with areas of enhanced moisture/instability and slow translation.

...Weather/Hazards Highlights...

Daily showers and thunderstorms are expected to be widespread from
the southern Plains and Gulf Coast to the Ohio Valley/Mid-Atlantic
and into the Northeast associated with persistent and pesky upper
level impulse/trough energies impacting the broad region. There
remains a lot of uncertainty in the details, but there is some
better general agreement that heavier rains may focus along/near a
slow moving a wavy frontal boundary draped across the Mid-Atlantic
and westward. A moist and unstable surrounding environment from
the Central to Eastern U.S. necessity the continuation of a very
broad WPC Marginal Risk area on the Day 4/Sunday WPC Excessive
Rainfall Outlook (ERO) for at least Sunday and especially the Mid-
Atlantic into Monday for the Day 5 ERO, but convective downpours
will continue farther south and west in a moist airmass. Overall
signal is for a wet pattern, and it's likely embedded slight risk
areas will be needed once guidance signals become more defined with
time. Farther north, shortwave energy through the northern tier
will support showers and strong storms, with marginal risks
highlighted on both the Day 4 and 5 EROs for convective complex
potential over the northern Plains. Moderate to heavier rain may
try to materialize moreso on Monday/Day 5 across parts of the
north- central U.S. as a stronger shortwave moves into the Plains,
with the Marginal Risk expanded accordingly.

Expect above normal temperatures to slowly spread from the
Intermountain West and Rockies into the PLains into next week
under the influence of a mean upper ridge, with some moderation in
spots with systems moving through. Temperatures should be closer to
normal along the West Coast. To the South, hazardous heat will
continue into early next week for the Desert Southwest with highs
making a run at 110 degrees for the lower elevations of southern
Arizona and southeast California, with Heat Risk likely reaching
the major category. Shortwave energy should moderate temperatures
after Monday. Meanwhile, slightly below average temperatures are
likely for the Northeast/northern Mid-Atlantic this weekend into
at early next week as this region will be north of the main
frontal boundary. Heat Risk also develops widespread Moderate to
Major Category heat threat levels for The South and Mid-South next
week as a hot and humid airmass builds in. This will increasingly
include record high overnight temperatures over time.

Schichtel/Santorelli


Additional 3-7 Day Hazard information can be found on the WPC
medium range hazards outlook chart at:
https://www.wpc.ncep.noaa.gov/threats/threats.php

WPC medium range 500mb heights, surface systems, weather grids,
quantitative precipitation forecast (QPF), excessive rainfall
outlook (ERO), winter weather outlook (WWO) probabilities, heat
indices, and Key Messages can be accessed from:

https://www.wpc.ncep.noaa.gov/medr/5dayfcst500_wbg.gif
https://www.wpc.ncep.noaa.gov/medr/5dayfcst_wbg_conus.gif
https://www.wpc.ncep.noaa.gov/5km_grids/5km_gridsbody.html
https://www.wpc.ncep.noaa.gov/qpf/day4-7.shtml
https://www.wpc.ncep.noaa.gov/#page=ero
https://www.wpc.ncep.noaa.gov/wwd/pwpf_d47/pwpf_medr.php?day=4
https://www.wpc.ncep.noaa.gov/heat_index.shtml
https://www.wpc.ncep.noaa.gov/#page=ovw

Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
319 AM EDT Thu Jun 12 2025

Valid 00Z Fri 13 Jun 2025 - 00Z Fri 20 Jun 2025

A rather stable and mostly dry pattern will be in place over
Hawaii for thet next week. Surface high pressure will be anchored
well north of the Islands through the end of the week, with the
state on the southwest periphery of the high. This will generally
result in easterly to southeasterly low level flow, with typical
terrain enhanced showers. The surface high likely becomes
established more north of the state near 35 degrees north, with a
stronger pressure gradient resulting in breezier trade winds
by early next week. Some general relaxing of the trades is
expected by late week as the high pressure begins to shift
eastward.

Santorelli

Excessive Rainfall Discussion
NWS Weather Prediction Center College Park MD
900 PM EDT Thu Jun 12 2025
Day 1
Valid 01Z Fri Jun 13 2025 - 12Z Fri Jun 13 2025

...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL FOR PORTIONS OF
THE NORTHERN PLAINS AND UPPER MISSISSIPPI VALLEY...

...Mid-Upper Texas Coast into the Lower-Mid Mississippi Valley...

01Z Update: As the shortwave slowly pivots towards and eventually
east of the ArkLaTex, broad-scale subsidence/NVA will push into the
area from the west. This along with the general airmass
stabilization following the MCS earlier today will lead to a more
limited flash flood risk heading into the overnight period -- even
with some return low-level flow off the Gulf (albeit weak). The
latest CAM guidance, including recent HRRR and RRFS runs, are
fairly light with additional rainfall overnight along areas hit
hard earlier (Mid-Upper TX Coast); however, given the heavy
rainfall earlier and thus low FFG values, will maintain a Marginal
Risk area over what was a Moderate.

Elsewhere, downstream of the slow-moving upper trough do anticipate
a localized risk of flash flooding within the diffuse, secondary
Warm Conveyor Belt off the Gulf and into the mid-level deformation
axis/comma head pivoting across northern AR and southern MO.

Hurley

...Northern Plains...

16Z Update: Only minor adjustments necessary for the inherited SLGT
and MRGL risk areas across the northern tier of the CONUS. The
forecast remains steadfast overall with little deviation in the
expected heavy rain axis to be located within the northern
periphery of a strong 850mb FGEN band situated west to east across
the Northern Plains into the Upper Midwest. 12z HREF EAS prob
fields for at least 2" is pretty high (40-60%), which is a
testament to the agreement within the CAMs suite on the placement
of the heavier precip threat. Rainfall rates between 1-2"/hr will
be common in the strongest convective cores, and with training
potential elevated due to parallel alignment of the mean wind to
the surface/low-level based forcing mechanism(s), this will lead to
a narrow axis of 2-4" with locally up to 5-6" plausible over the
course of the late-afternoon and evening time frames when the event
takes shape. Isolated flash flood concerns will extend as far
northwest as MT with remnant shortwaves and modest instability
maintaining a persistent convective presence during the course of
the period with the best chances likely developing after 19z.

Kleebauer


...Southeast U.S...

A combination of elevated moisture across the Southeast and strong
differential heating away from the coastal plain will lead to a
corridor of enhanced SBCAPE on the order of 2500-3500 J/kg across
GA up through the Continental Divide in the Southern Mid Atlantic.
Scattered to numerous thunderstorms with relatively slow storm
motions will enhance locally heavy rainfall capabilities with rates
between 2-3"/hr plausible in a few of the stronger cores.
Urbanized zones within the region referenced above will be the most
susceptible for flash flooding prospects with some of the latest
CAMs going as high as 4-5" in some of the greater outputs
anticipated. A MRGL risk is in place for the areas above with a
minor expansion on the southern and western edge of the inherited
risk.

Kleebauer


Day 1 threat area: www.wpc.ncep.noaa.gov/qpf/94epoints.txt

Excessive Rainfall Discussion
NWS Weather Prediction Center College Park MD
900 PM EDT Thu Jun 12 2025
Day 2
Valid 12Z Fri Jun 13 2025 - 12Z Sat Jun 14 2025

...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL FOR MUCH OF
ARKANSAS...

...Arkansas/Mid-South...

Slowly-moving upper low will be centered over the Ozarks Friday
morning and drifting northeastward amid a very moisture-laden
environment. Instability will remain modest as the cool core passes
through, which will support another round of afternoon storms
(following rainfall today) with rainfall rates of 1-2.5"/hr.
Increase in LLJ overnight tomorrow night may again enhance some
rainfall over the area, and have maintained the Slight Risk for
excessive rainfall over the region with a small extension
eastward/northeastward into the stronger IVT zone. Soils are wet
and FFG values will lower today/tonight, leaving the area
(especially in the hillier terrain) more susceptible to
localized/scattered instances of flooding. With the wettest soils
in Arkansas from about Little Rock west, this area was maintained
in an internally-denoted higher-end Slight Risk.


...Mid-Atlantic/Carolinas...

Expanded the Marginal Risk northward to near the PA border and
westward into eastern West Virginia given an increase in QPF from
the 12Z guidance. Frontal boundary sinking southward will stall
over the region, acting as a focus for heavier rain and rates
(1-2"/hr) where it has been rather wet coming out of May. Over VA
into the Carolinas, PW values will remain elevated (1.75-2.00") and
some localized flash flooding is possible. CSU Machine Learning ERO
guidance shows a small Slight Risk area from near the DC Metro area
southward, so this area will need to be watched further.

...Northern WI/Michigan U.P....

Area of low pressure moving eastward through MN may help drive a
small risk for heavier rainfall over northern WI into the U.P.
Friday morning, but instability is limited.

...Northern Rockies/Western High Plains...

The Marginal from Montana to northeast Colorado was maintained
with minimal changes along the western interface of the deeper
moisture over much of the Plains.

Fracasso/Wegman

Day 2 threat area: www.wpc.ncep.noaa.gov/qpf/98epoints.txt

Excessive Rainfall Discussion
NWS Weather Prediction Center College Park MD
900 PM EDT Thu Jun 12 2025
Day 3
Valid 12Z Sat Jun 14 2025 - 12Z Sun Jun 15 2025

...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL FROM CENTRAL
ARKANSAS THROUGH NORTHERN MISSISSIPPI...

...Arkansas through Alabama...

After multiple days of shower and thunderstorm activity in this
area, there should be some decrease in the organization of the
overall shower and thunderstorm activity expected Saturday from
Arkansas east through Alabama. Despite that decrease, very wet
soils through Mississippi and a lingering frontal boundary
providing some forcing should still lead to enough organization to
support widely scattered instances of flash flooding. The Slight
Risk area was maintained for Arkansas and Mississippi to capture
the early morning rainfall potential and due to previous expected
rainfall (and lower FFG values). Plentiful moisture over 1.5
inches of PWAT will still support any storms that do form to be
capable of heavy rainfall.

...Mid-Atlantic...

Maintained the Marginal Risk area much of the Midwest to Mid-
Atlantic that remains in a moisture-laden environment near and
south of a frontal boundary. Targeted upgrades to Slight Risks may
be warranted pending rainfall distribution over the next two days
(especially over areas that have above normal soil moisture). CSU
Machine Learning ERO guidance does show a Slight Risk over northern
VA so this will be monitored in future shifts.

Fracasso/Wegman

Day 3 threat area: www.wpc.ncep.noaa.gov/qpf/99epoints.txt

Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
313 PM EDT Thu Jun 12 2025


Daily showers and thunderstorms are expected to be widespread from
the southern Plains and Gulf Coast to the Ohio Valley/Mid-Atlantic
and into the Northeast associated with persistent and pesky upper
level impulse/trough energies impacting the broad region. There
remains a lot of uncertainty in the details, but there is some
better general agreement that heavier rains may focus along/near a
slow moving a wavy frontal boundary draped across the Mid-Atlantic
and westward. A moist and unstable surrounding environment from
the Central to Eastern U.S. necessity the continuation of a very
broad WPC Marginal Risk area on the Day 4/Sunday WPC Excessive
Rainfall Outlook (ERO) for at least Sunday and especially the Mid-
Atlantic into Monday for the Day 5 ERO, but convective downpours
will continue farther south and west in a moist airmass. Overall
signal is for a wet pattern, and it's likely embedded slight risk
areas will be needed once guidance signals become more defined with
time. Farther north, shortwave energy through the northern tier
will support showers and strong storms, with marginal risks
highlighted on both the Day 4 and 5 EROs for convective complex
potential over the northern Plains. Moderate to heavier rain may
try to materialize moreso on Monday/Day 5 across parts of the
north- central U.S. as a stronger shortwave moves into the Plains,
with the Marginal Risk expanded accordingly.

Expect above normal temperatures to slowly spread from the
Intermountain West and Rockies into the PLains into next week
under the influence of a mean upper ridge, with some moderation in
spots with systems moving through. Temperatures should be closer to
normal along the West Coast. To the South, hazardous heat will
continue into early next week for the Desert Southwest with highs
making a run at 110 degrees for the lower elevations of southern
Arizona and southeast California, with Heat Risk likely reaching
the major category. Shortwave energy should moderate temperatures
after Monday. Meanwhile, slightly below average temperatures are
likely for the Northeast/northern Mid-Atlantic this weekend into
at early next week as this region will be north of the main
frontal boundary. Heat Risk also develops widespread Moderate to
Major Category heat threat levels for The South and Mid-South next
week as a hot and humid airmass builds in. This will increasingly
include record high overnight temperatures over time.

Schichtel/Santorelli

Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
313 PM EDT Thu Jun 12 2025


Daily showers and thunderstorms are expected to be widespread from
the southern Plains and Gulf Coast to the Ohio Valley/Mid-Atlantic
and into the Northeast associated with persistent and pesky upper
level impulse/trough energies impacting the broad region. There
remains a lot of uncertainty in the details, but there is some
better general agreement that heavier rains may focus along/near a
slow moving a wavy frontal boundary draped across the Mid-Atlantic
and westward. A moist and unstable surrounding environment from
the Central to Eastern U.S. necessity the continuation of a very
broad WPC Marginal Risk area on the Day 4/Sunday WPC Excessive
Rainfall Outlook (ERO) for at least Sunday and especially the Mid-
Atlantic into Monday for the Day 5 ERO, but convective downpours
will continue farther south and west in a moist airmass. Overall
signal is for a wet pattern, and it's likely embedded slight risk
areas will be needed once guidance signals become more defined with
time. Farther north, shortwave energy through the northern tier
will support showers and strong storms, with marginal risks
highlighted on both the Day 4 and 5 EROs for convective complex
potential over the northern Plains. Moderate to heavier rain may
try to materialize moreso on Monday/Day 5 across parts of the
north- central U.S. as a stronger shortwave moves into the Plains,
with the Marginal Risk expanded accordingly.

Expect above normal temperatures to slowly spread from the
Intermountain West and Rockies into the PLains into next week
under the influence of a mean upper ridge, with some moderation in
spots with systems moving through. Temperatures should be closer to
normal along the West Coast. To the South, hazardous heat will
continue into early next week for the Desert Southwest with highs
making a run at 110 degrees for the lower elevations of southern
Arizona and southeast California, with Heat Risk likely reaching
the major category. Shortwave energy should moderate temperatures
after Monday. Meanwhile, slightly below average temperatures are
likely for the Northeast/northern Mid-Atlantic this weekend into
at early next week as this region will be north of the main
frontal boundary. Heat Risk also develops widespread Moderate to
Major Category heat threat levels for The South and Mid-South next
week as a hot and humid airmass builds in. This will increasingly
include record high overnight temperatures over time.

Schichtel/Santorelli

Probabilistic Heavy Snow and Icing Discussion
NWS Weather Prediction Center College Park MD
214 PM EDT Wed May 7 2025

Valid 00Z Thu May 08 2025 - 00Z Sun May 11 2025


...Colorado...
Day 1...

Lingering vorticity on the western side of the departing upper low
will still trigger some light snow over the San Juans this evening
before tapering off tonight/early Thursday. WPC probabilities for
at least an additional 4 inches of snow after 00Z are low (10-40%)
above 11,000ft.

For days 2-3, the probability of at least 4 inches of snow is less
than 10%.

The probability of significant freezing rain across the CONUS is
less than 10%.

Note - this is the last regularly scheduled discussion (QPFHSD)
for the 2024-2025 winter season. Unless a significant winter
weather threat emerges, this discussion will next be updated on or
about September 25, 2025.


Fracasso

Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
313 PM EDT Thu Jun 12 2025

Valid 12Z Sun Jun 15 2025 - 12Z Thu Jun 19 2025


...Heavy rain/flash flood threat from the south-central U.S. to
the Tennessee/Ohio Valleys and Mid-Atlantic Sunday to Monday...

...Multi-day Heavy Convective Rainfall threat for the northern
Plains/Upper Midwest next week...

...Southwest High Heat in to early next week and a hot/humid
airmass for the South next week...


...General Overview...

Slow moving shortwave trough energy aloft will gradually shift over
the south-central to eastern U.S. this weekend into next week with
periodic reloading from impulse energy digging to the lee of an
amplified upstream ridge building from the Southwest to the central
U.S.. This will keep the weather unsettled through much of the
period with widespread showers and thunderstorms to include
difficult to pinpoint cell focus, but offers quite viable threats
for heavy to excessive rainfall over a broad area. Shortwave energy
originating from troughing over the Northwest will meanwhile slide
over the northern tier states with accompanying showers and
storms. An upper trough will work toward the Southwest and weaken
into next midweek, with another trough taking shape off the
Northwest mid- later next week. Upper ridging will focus high heat
over the Southwest mainly Sunday and Monday, with sticky heat
spreading in earnest across much of The South next week. There are
growing signals for an enhanced tropical moisture feed from the
Gulf to northeast Mexico and South Texas in a week to monitor for
signs of system development out from the Bay of Campeche/vicinity.

...Guidance/Predictability Assessment...

Guidance remains in reasonably good agreement with most of the
synoptic scale features and offers good pattern predictability.
However, guidance continues to suffer from widespread smaller
scale system and convective focus variances. Accordingly, the WPC
medium range product suite was mainly derived from a blend of
GFS/ECMWF/CMC/UKMET model and GEFS/ECMWF/Canadian ensemble mean
solutions along with the compatible National Blend of Models and
WPC continuity through medium range time scales. The blend process
tends to smooth system detail consistent with feature probability.
Applied manual adjustments to ensure sufficient QPF as warranted
with areas of enhanced moisture/instability and slow translation.

...Weather/Hazards Highlights...

Daily showers and thunderstorms are expected to be widespread from
the southern Plains and Gulf Coast to the Ohio Valley/Mid-Atlantic
and into the Northeast associated with persistent and pesky upper
level impulse/trough energies impacting the broad region. There
remains a lot of uncertainty in the details, but there is some
better general agreement that heavier rains may focus along/near a
slow moving a wavy frontal boundary draped across the Mid-Atlantic
and westward. A moist and unstable surrounding environment from
the Central to Eastern U.S. necessity the continuation of a very
broad WPC Marginal Risk area on the Day 4/Sunday WPC Excessive
Rainfall Outlook (ERO) for at least Sunday and especially the Mid-
Atlantic into Monday for the Day 5 ERO, but convective downpours
will continue farther south and west in a moist airmass. Overall
signal is for a wet pattern, and it's likely embedded slight risk
areas will be needed once guidance signals become more defined with
time. Farther north, shortwave energy through the northern tier
will support showers and strong storms, with marginal risks
highlighted on both the Day 4 and 5 EROs for convective complex
potential over the northern Plains. Moderate to heavier rain may
try to materialize moreso on Monday/Day 5 across parts of the
north- central U.S. as a stronger shortwave moves into the Plains,
with the Marginal Risk expanded accordingly.

Expect above normal temperatures to slowly spread from the
Intermountain West and Rockies into the PLains into next week
under the influence of a mean upper ridge, with some moderation in
spots with systems moving through. Temperatures should be closer to
normal along the West Coast. To the South, hazardous heat will
continue into early next week for the Desert Southwest with highs
making a run at 110 degrees for the lower elevations of southern
Arizona and southeast California, with Heat Risk likely reaching
the major category. Shortwave energy should moderate temperatures
after Monday. Meanwhile, slightly below average temperatures are
likely for the Northeast/northern Mid-Atlantic this weekend into
at early next week as this region will be north of the main
frontal boundary. Heat Risk also develops widespread Moderate to
Major Category heat threat levels for The South and Mid-South next
week as a hot and humid airmass builds in. This will increasingly
include record high overnight temperatures over time.

Schichtel/Santorelli


Additional 3-7 Day Hazard information can be found on the WPC
medium range hazards outlook chart at:
https://www.wpc.ncep.noaa.gov/threats/threats.php

WPC medium range 500mb heights, surface systems, weather grids,
quantitative precipitation forecast (QPF), excessive rainfall
outlook (ERO), winter weather outlook (WWO) probabilities, heat
indices, and Key Messages can be accessed from:

https://www.wpc.ncep.noaa.gov/medr/5dayfcst500_wbg.gif
https://www.wpc.ncep.noaa.gov/medr/5dayfcst_wbg_conus.gif
https://www.wpc.ncep.noaa.gov/5km_grids/5km_gridsbody.html
https://www.wpc.ncep.noaa.gov/qpf/day4-7.shtml
https://www.wpc.ncep.noaa.gov/#page=ero
https://www.wpc.ncep.noaa.gov/wwd/pwpf_d47/pwpf_medr.php?day=4
https://www.wpc.ncep.noaa.gov/heat_index.shtml
https://www.wpc.ncep.noaa.gov/#page=ovw