Weather Prediction Center

National Oceanic and Atmospheric Administration

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
330 AM EDT Tue Jul 01 2025

Valid 12Z Tue Jul 01 2025 - 12Z Thu Jul 03 2025

...There is a Moderate Risk of excessive rainfall over parts of the
Mid-Atlantic on Tuesday...

...There is a Slight Risk of excessive rainfall over parts of the Southern
High Plains and Western Gulf Coast on Tuesday and southern Mid-Atlantic,
on Wednesday...

...There is a Slight Risk of severe thunderstorms over parts of the
Mid-Atlantic on Tuesday...

On Tuesday, a front extending from the Great Lakes/Ohio Valley to the
Central/Southern Plains will move eastward to the East Coast by Wednesday
evening. Showers and severe thunderstorms will develop along and ahead of
the boundary over parts of the Mid-Atlantic. Therefore, the SPC has issued
a Slight Risk (level 2/5) of severe thunderstorms over parts of the
Mid-Atlantic through Wednesday morning. The hazards associated with these
thunderstorms are frequent lightning, severe thunderstorm wind gusts, and
a minimal threat of tornadoes and hail.

In addition, the showers and thunderstorms will produce heavy rain over
parts of the Mid-Atlantic and Central/Southern Appalachians on Tuesday.
Therefore, the WPC has issued a Moderate Risk (level 3/4) of excessive
rainfall over parts of the Mid-Atlantic into Wednesday morning. Numerous
flash flooding events are possible. In addition, many streams may flood,
potentially affecting larger rivers. The flooding may include debris flows
in or near recently burned areas.

Similarly, on Tuesday, showers and thunderstorms will develop along and
ahead of the front moving across the Southern Appalachians, southern
Mid-Atlantic, Southeast, and Tennessee Valley.

Moreover, upper-level energy and moisture over the Southern High Plains
will produce showers and thunderstorms with heavy rain over parts of the
region. Therefore, the WPC has issued a Slight Risk (level 2/4) of
excessive rainfall over parts of the Southern High Plains through
Wednesday morning. The associated heavy rain will create mainly localized
areas of flash flooding, with urban areas, roads, small streams, and
low-lying areas the most vulnerable.

Also, moisture from the Gulf will stream into southern Texas, creating
heavy rain. Therefore, the WPC has issued a Slight Risk (level 2/4) of
excessive rainfall over parts of southern Texas/Western Gulf Coast through
Wednesday morning. The associated heavy rain will create mainly localized
areas of flash flooding, with urban areas, roads, small streams, and
low-lying areas the most vulnerable. Further, moisture from the Gulf of
America will stream northward into the Rockies, producing showers and
thunderstorms over parts of the Central Rockies.

Also, an upper-level low just off the Central/Southern California Coast on
Tuesday will produce scattered showers and thunderstorms over parts of
Northern California and Oregon. However, upper-level ridging over parts of
the Pacific Northwest has prompted Heat Advisories over parts of
Washington State, Oregon, and Idaho through Tuesday evening. Furthermore,
as the upper-level ridging extends into the Southwest, Extreme Heat
Warnings are posted over parts of the Southwest on Tuesday.

On Wednesday, moisture pooling along the front over the East Coast will
produce showers and thunderstorms along the Coastal States. In particular,
the storms over the Mid-Atlantic Region will produce heavy rain over parts
of the southern Mid-Atlantic. Therefore, the WPC has issued a Slight Risk
(level 2/4) of excessive rainfall over parts of the southern Mid-Atlantic
from Wednesday through Thursday morning. The associated heavy rain will
create mainly localized areas of flash flooding, with urban areas, roads,
small streams, and low-lying areas the most vulnerable.

Additionally, on Wednesday, a front moving southward out of Central Canada
will move into the Great Lakes/Upper Mississippi Valley, producing showers
and strong to severe thunderstorms over the region. Furthermore, on
Wednesday afternoon into Thursday, a third front will move onshore over
the Pacific Northwest and inland to the Northern Rockies/Northern
Intermountain Region and into Northern California. The boundary will
trigger showers and strong to severe thunderstorms over parts of the
Northern Rockies/Northern Intermountain Region. Moreover, on Wednesday,
moisture and daytime heating will create showers and thunderstorms over
parts of the Great Basin, the Southwest, and the Central/Southern Rockies.


Ziegenfelder


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

Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
237 AM EDT Tue Jul 1 2025

Valid 12Z Fri Jul 04 2025 - 12Z Tue Jul 08 2025


...Heavy Rain/Flash flooding threats for both Florida and the
north-central Plains/Upper Midwest through Friday/Saturday...

...Holiday weekend central-eastern U.S. Hazardous Heat threat...


...Pattern Overview...

Amplified upper troughing over the Northeast will lift out over the
upcoming holiday weekend as multiple Pacific system energies dig
into a West Coast mean upper trough position that lingers into
next week. In between, a building upper ridge will spread a threat
for hazardous heat across the central to eastern U.S. this holiday
weekend into early next week. Meanwhile, a continued series of
strong to severe convection forcing and local heavy rain fueling
impulses and fronts will meanwhile progress overtop/into the ridge
from the north-central U.S. to the Midwest/East. An active tropics
favors lingering moisture over the southern High Plains into the
Fourth and a multi-day Florida Peninsula heavy rain pattern fueled
by tropipcal moisture that may also feed up into the Gulf Coast.

...Guidance/Predictability Assessment

The WPC medium range product suite was derived from a broad blend
of model and ensemble guidance along with WPC coninuity and the
National Blend of Models and AIFS. Forecast spread and uncertainty
increase over time within average seasonal norms, lending majority
blend guidance weighting transition from the models Friday/Saturday
to the ensembles Sunday to next Tuesday. The blend tends to smooth
forecast variances as consistent with feature predictability.

...Weather/Hazards Highlights...

Thunderstorms with deep moisture and instability will support heavy
convective downpours along/south of a lingering Florida front into
the weekend. WPC Excessive Rainfall Outlook (ERO) Marginal Risk
areas are in place for Day 4/Friday and Day 5/Saturday in a region
with precursor heavy rains and anomalous Gulf tropical moisture.
Latest guidance has backed off on explicit QPF despite a favorable
pattern feeding off the eastern Gulf as being looks at by the NHC.

Monsoonal moisture with some connection to current eastern Pacific
Hurricane Flossie and some Gulf moisture from recent Barry may
boost rain potential that may linger into Friday over the Big
Bend and vicinity where an ERO Marginal Risk area is depicted.

Periodic afternoon and nocturnal strong to severe storms/MCS
activity offer heavy rain/runoff potential to focus over the north-
central Plains and Upper Midwest late week into Saturday as upper
trough/impulse energies work over the northern periphery of the
main central U.S. upper ridge as moisture/instability pools near
wavy passing and draping fronts. WPC ERO Marginal Risk areas have
been introduced for Day 4/Friday and Day 5/Saturday. Weekend to
early next week activity with upper system/frontal progressions
then works over the central Midwest/Great Lakes and the Northeast
while continued activity refires back to the north-central states
near the trailing and wavy frontal zone with uncertain local focus.


Schichtel


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
332 AM EDT Tue Jul 1 2025

Valid 00Z Wed 02 Jul 2025 - 00Z Wed 09 Jul 2025

Guidance continues to overall agree that a mean upper trough
position blocked just to the northwest of the islands by upper
ridging is acting to veer light to moderate island trades along
with only a modest increase in moisture and showers as deep
moisture holds offshore. Trades may become moderate to locally
breezy mid-late week and continue to slowly strengthen into the
weekend as high pressure bridges to the north of the state, but
moisture should remain limited.

Schichtel

Excessive Rainfall Discussion
NWS Weather Prediction Center College Park MD
930 AM EDT Tue Jul 1 2025
Day 1
Valid 1327Z Tue Jul 01 2025 - 12Z Wed Jul 02 2025

..THERE IS A MODERATE RISK OF EXCESSIVE RAINFALL OVER NORTHERN
PORTIONS OF THE MID-ATLANTIC REGION...

1330Z Update: MCV moving across the Ohio Valley will be a focus of
heavy rainfall over portions of Southern and Southeast OH,
shifting into Southwest PA and Northern WV by the afternoon and
evening. Considering the ongoing threat with localized maxima
likely to spur scattered flash flood signals near the organized
complex, an earlier expansion of the SLGT risk was made to include
areas likely to be impacted now through the afternoon and early
evening time frame. Full update for rest of forecast will be out no
later than 16z.

Kleebauer

...Eastern Seaboard...

Per collaboration with WFOs CTP, PHI, and LWX, we have included a
Moderate Risk to the Day 1 ERO across parts of the northern Mid
Atlantic Region to include NoVa and the DC-Balt metro regions,
northern DE and into southeast PA.

Longwave upper trough over the Upper Great Lakes/Midwest early
this morning will pivot eastward Tue-Tue night, pushing east of the
Appalachians Wed morning. Embedded within the longwave trough is a
shortwave, currently along the IA/IL/MO tri- state area, which
will track across the OH Valley later this afternoon and across the
Mid Atlantic later this evening and overnight. This shortwave
should enhance the broad- scale across the Mid Atlantic region
(especially), while low-level frontogenesis also gets a boost south
of the 90-100kt upper jet streak in the lee of the large-scale
trough.

0-6km bulk shear values increasing to 25+ kts within the inherited
broad Slight Risk area (30-40+ knots over the northern Mid Atlantic
into the Northeast) will support the formation of
widespread/multi-cluster line segments ahead of the upper
trough/surface cold front during peak diurnal instability hours
this afternoon into the evening. MUCAPEs peak between 2000-3000
J/Kg, while TPWs remain around 2 standard deviations above normal
for early July (between 2.00-2.25" within the non-convective
environment across much of the Mid Atlantic into southern New
England). The concern over the Slight and especially Moderate Risk
areas will be with upwind propagation and cell training, as the
pre-frontal southwesterly low-level flow (20-25 kts at 850 mb
becomes nearly parallel and of similar magnitude as the mean
850-300 mb flow. 00Z HREF and RRFS probabilities of 24hr QPF
exceeding 3" climb above 60% within much of the Moderate Risk
area (highest with the RRFS), while probs exceeding 5" within the
24hr period reach 40-60% in spots per the RRFS (though 20-25% tops
per the HREF). Given the favorable thermodynamic profile (high
CAPE/PW environment) along with the broad-scale forcing, anticipate
areas of 2 to 3+ inch/hr rainfall rates this afternoon and evening.

The Moderate Risk area also encompasses areas recently hit by
heavier rainfall, evidenced by the lower FFGs (in some areas, 1 hr
FFGs 1.00" or less). This includes areas SE PA including the
Middletown/Lancaster/Lebanon/Redding areas that received 4-7" of
rain on Monday.

...West Texas into New Mexico...

Farther south/west along the stalled frontal boundary...convection
is expected to be develop within a region of decent CAPE and
precipitable water values in excess of 2 standard deviations above
climatology. This area will also benefit from weak upper level
vorticity/shear axis within the broad-scale ridge, with tropical
moisture feeding in per the low-mid layer southeasterly flow.
850-700 mb moisture transport is pretty solid across the outlook
areas, but especially within the Slight Risk region across parts of
West TX into southeast NM where the 850-700 mb moisture flux
standardized anomalies peak between 3-4 standard deviations above
normal per the 00Z SREF and GEFS. Given the relatively healthy
low-level flow compared to the overall weaker mean flow, areas of
heavy, possibly excessive rainfall are anticipated, especially
within the Slight Risk area, considering the uptick in upwind
propagation and thus chances for cell training.

...South Texas...

An influx of abnormally high TPW from the remnants of Tropical
Cyclone Barry (2.2 to 2.4", which is close to 3 standard
deviations above normal for early July) will combine with a
modestly unstable environment (MUCAPEs increasing to 1500-2500
J/Kg) in producing very heavy short-term rainfall rates later this
afternoon/evening and potentially later into the overnight period.
Both the HREF and RRFS ensembles show high probabilities (>50%) of
3+ inch rainfall, with 30-40% probs of exceeding 5 inches.
Therefore expect more than a localized risk of flash flooding
(i.e. Slight vs Marginal) across portions of South Texas from
Corpus Christi south through Brownsville and the RGV.

Hurley


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

Excessive Rainfall Discussion
NWS Weather Prediction Center College Park MD
930 AM EDT Tue Jul 1 2025
Day 2
Valid 12Z Wed Jul 02 2025 - 12Z Thu Jul 03 2025

...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL ACROSS PORTIONS OF
SOUTHEAST VIRGINIA AND NORTHEAST NORTH CAROLINA...

...Lower Mid Atlantic and Southeast...

Pre-frontal convection will likely be ongoing across the Mid
Atlantic and Southeastern Seaboard Wednesday morning, with
additional line segments upstream as well prior to the passage of
the surface front and upper trough axis later in the day. Along the
axis of 2.25"+ TPWs, by early afternoon (17-18Z), both the HREF
and RRFS ensembles show an uptick in >2"/hr rainfall rates across
southeast VA and northeast NC, particularly the RRFS (25-50%).
Available high-res CAM guidance (NAM Nest, FV3, and RRFS) all show
pockets of 3-5+ inch totals within the Slight Risk area. Elsewhere
within the Marginal Risk area stretching through much of the
Southeast, anticipate the flash flood threat to be more
isolated/localized as 0-6 km bulk shear values remain aob 20kt
(implying more pulse/less organized convection).

...West Texas into parts of the Southwest...
Continued moist, southeasterly low-level flow (850-700 moisture
transport/flux standardized anomalies +3 to +4 again from West TX
into NM) will set the stage for numerous showers and storms again,
especially during peak heating hours Wed afternoon and evening.
Strong low-level inflow is in some areas double the mean 850-300 mb
flow, thus resulting in Corfidi vectors opposing the low-level
wind. This will likely lead to cell training, especially where the
southeasterly low-level flow leads to more upslope enhancement.
Right now, the guidance (including the CAMs that go out through
Day 2) show considerable spread with the heavier QPF. Therefore for
now will maintain a more isolated (Marginal) flash flood risk, as
later shifts will evaluate once the period (Wed-Wed night) gets
within the remainder of the high-res CAM windows.

Hurley

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

Excessive Rainfall Discussion
NWS Weather Prediction Center College Park MD
930 AM EDT Tue Jul 1 2025
Day 3
Valid 12Z Thu Jul 03 2025 - 12Z Fri Jul 04 2025

...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL ACROSS WESTERN
PORTIONS OF THE FLORIDA PENINSULA...

...Southern Georgia through northern and central Florida...

Subtle changes were made to the Slight and Marginal Risk areas
inherited from yesterday's Day 4 ERO. Southern periphery of the
longwave upper trough crosses the area Thu-Thu night, with the
guidance showing embedded shortwaves (possibly convectively-
enhanced) reaching South FL toward the end of the period (12Z Fri).
Ahead of the nearly stationary surface front, onshore west to
southwest low-level inflow from the eastern Gulf will likely lead
to a more focused area of low-level moisture transport/flux
convergence over much of the west coast of FL, especially north of
Ft. Myers to include the Tampa-St. Pete area, where 0-6km bulk
shear values do approach 25 kts (allowing for more
organized/widespread convective clusters). The RRFS is most
particularly robust with the QPF within the Slight Risk area (areas
of 3-6+ inches), which considering the thermodynamic
environment/deep subtropical moisture (TPW values 2.25 to 2.50"),
is certainly plausible. Especially considering the onshore low-
level inflow will likely exceed (perhaps double) the mean 850-300
mb wind), enhancing the potential for cell training. Even with a
more limited (tall/skinny) CAPE profile, sub-hourly rainfall rates
of 2.5-3.0+ inches within this environment will be possible,
especially within the Slight Risk area.

Elsewhere, few changes were made to the inherited Marginal Risk
area across the Northern Plains-Upper MS Valley and again across
West TX into the Southwest (including southern-central Rockies).
Guidance at this point shows considerable spread to support
anything more than a Marginal.

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

Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
237 AM EDT Tue Jul 1 2025


Thunderstorms with deep moisture and instability will support heavy
convective downpours along/south of a lingering Florida front into
the weekend. WPC Excessive Rainfall Outlook (ERO) Marginal Risk
areas are in place for Day 4/Friday and Day 5/Saturday in a region
with precursor heavy rains and anomalous Gulf tropical moisture.
Latest guidance has backed off on explicit QPF despite a favorable
pattern feeding off the eastern Gulf as being looks at by the NHC.

Monsoonal moisture with some connection to current eastern Pacific
Hurricane Flossie and some Gulf moisture from recent Barry may
boost rain potential that may linger into Friday over the Big
Bend and vicinity where an ERO Marginal Risk area is depicted.

Periodic afternoon and nocturnal strong to severe storms/MCS
activity offer heavy rain/runoff potential to focus over the north-
central Plains and Upper Midwest late week into Saturday as upper
trough/impulse energies work over the northern periphery of the
main central U.S. upper ridge as moisture/instability pools near
wavy passing and draping fronts. WPC ERO Marginal Risk areas have
been introduced for Day 4/Friday and Day 5/Saturday. Weekend to
early next week activity with upper system/frontal progressions
then works over the central Midwest/Great Lakes and the Northeast
while continued activity refires back to the north-central states
near the trailing and wavy frontal zone with uncertain local focus.


Schichtel

Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
237 AM EDT Tue Jul 1 2025


Thunderstorms with deep moisture and instability will support heavy
convective downpours along/south of a lingering Florida front into
the weekend. WPC Excessive Rainfall Outlook (ERO) Marginal Risk
areas are in place for Day 4/Friday and Day 5/Saturday in a region
with precursor heavy rains and anomalous Gulf tropical moisture.
Latest guidance has backed off on explicit QPF despite a favorable
pattern feeding off the eastern Gulf as being looks at by the NHC.

Monsoonal moisture with some connection to current eastern Pacific
Hurricane Flossie and some Gulf moisture from recent Barry may
boost rain potential that may linger into Friday over the Big
Bend and vicinity where an ERO Marginal Risk area is depicted.

Periodic afternoon and nocturnal strong to severe storms/MCS
activity offer heavy rain/runoff potential to focus over the north-
central Plains and Upper Midwest late week into Saturday as upper
trough/impulse energies work over the northern periphery of the
main central U.S. upper ridge as moisture/instability pools near
wavy passing and draping fronts. WPC ERO Marginal Risk areas have
been introduced for Day 4/Friday and Day 5/Saturday. Weekend to
early next week activity with upper system/frontal progressions
then works over the central Midwest/Great Lakes and the Northeast
while continued activity refires back to the north-central states
near the trailing and wavy frontal zone with uncertain local focus.


Schichtel

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
237 AM EDT Tue Jul 1 2025

Valid 12Z Fri Jul 04 2025 - 12Z Tue Jul 08 2025


...Heavy Rain/Flash flooding threats for both Florida and the
north-central Plains/Upper Midwest through Friday/Saturday...

...Holiday weekend central-eastern U.S. Hazardous Heat threat...


...Pattern Overview...

Amplified upper troughing over the Northeast will lift out over the
upcoming holiday weekend as multiple Pacific system energies dig
into a West Coast mean upper trough position that lingers into
next week. In between, a building upper ridge will spread a threat
for hazardous heat across the central to eastern U.S. this holiday
weekend into early next week. Meanwhile, a continued series of
strong to severe convection forcing and local heavy rain fueling
impulses and fronts will meanwhile progress overtop/into the ridge
from the north-central U.S. to the Midwest/East. An active tropics
favors lingering moisture over the southern High Plains into the
Fourth and a multi-day Florida Peninsula heavy rain pattern fueled
by tropipcal moisture that may also feed up into the Gulf Coast.

...Guidance/Predictability Assessment

The WPC medium range product suite was derived from a broad blend
of model and ensemble guidance along with WPC coninuity and the
National Blend of Models and AIFS. Forecast spread and uncertainty
increase over time within average seasonal norms, lending majority
blend guidance weighting transition from the models Friday/Saturday
to the ensembles Sunday to next Tuesday. The blend tends to smooth
forecast variances as consistent with feature predictability.

...Weather/Hazards Highlights...

Thunderstorms with deep moisture and instability will support heavy
convective downpours along/south of a lingering Florida front into
the weekend. WPC Excessive Rainfall Outlook (ERO) Marginal Risk
areas are in place for Day 4/Friday and Day 5/Saturday in a region
with precursor heavy rains and anomalous Gulf tropical moisture.
Latest guidance has backed off on explicit QPF despite a favorable
pattern feeding off the eastern Gulf as being looks at by the NHC.

Monsoonal moisture with some connection to current eastern Pacific
Hurricane Flossie and some Gulf moisture from recent Barry may
boost rain potential that may linger into Friday over the Big
Bend and vicinity where an ERO Marginal Risk area is depicted.

Periodic afternoon and nocturnal strong to severe storms/MCS
activity offer heavy rain/runoff potential to focus over the north-
central Plains and Upper Midwest late week into Saturday as upper
trough/impulse energies work over the northern periphery of the
main central U.S. upper ridge as moisture/instability pools near
wavy passing and draping fronts. WPC ERO Marginal Risk areas have
been introduced for Day 4/Friday and Day 5/Saturday. Weekend to
early next week activity with upper system/frontal progressions
then works over the central Midwest/Great Lakes and the Northeast
while continued activity refires back to the north-central states
near the trailing and wavy frontal zone with uncertain local focus.


Schichtel


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