Weather Prediction Center

National Oceanic and Atmospheric Administration

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
343 AM EDT Tue Oct 03 2023

Valid 12Z Tue Oct 03 2023 - 12Z Thu Oct 05 2023

...There is a Slight Risk of excessive rainfall over parts of the Western
Gulf Coast on Tuesday and over the Southern Plains and Middle/Lower
Mississippi Valley on Wednesday...

...There is an Enhanced Risk of severe thunderstorms over parts of the
Central/Southern Plains on Tuesday and a Slight Risk over parts of the
Southern High Plains on Wednesday...

...Snow over parts of the highest elevations of Wyoming...

A front extending from the Northern Plains southward to the Southern High
Plains will slowly move eastward to the Upper Great Lakes to the Southern
High Plains by Thursday. Moisture will pool along the boundary, producing
showers and severe thunderstorms over parts of the Plains. Therefore, the
SPC has issued an Enhanced Risk of severe thunderstorms over parts of the
Central/Southern Plains through Wednesday morning. The hazards associated
with these thunderstorms are frequent lightning, severe thunderstorm wind
gusts, hail, and a few tornadoes. Further, there is an increased threat of
hail two inches or greater over parts of the Central/Southern Plains.

Moreover, moisture streaming onshore over the Western Gulf Coast will
produce showers and thunderstorms with heavy rain. Therefore, the WPC has
issued a Slight Risk of excessive rainfall over parts of the Western Gulf
Coast through Wednesday morning. The associated heavy rain will create
mainly localized areas of flash flooding, with urban areas, roads, and
small streams the most vulnerable.

The threat of severe thunderstorms decreases slightly on Wednesday. The
front will produce showers and thunderstorms from the Upper Great Lakes
southward to the Southern Plains. However, the showers and thunderstorms
will become severe over parts of Northwestern Texas and southwestern
Oklahoma. Therefore, the SPC has issued a Slight Risk of severe
thunderstorms over parts of the Southern High Plains from Wednesday into
Thursday morning. The hazards associated with these thunderstorms are
frequent lightning, severe thunderstorm wind gusts, hail, and a few
tornadoes.

Additionally, on Wednesday, the threat of excessive rainfall will move
from the Western Gulf Coast to northeastern Texas, southeastern Oklahoma,
southwestern Missouri, Western Arkansas, and extreme northwestern
Louisiana. Therefore, the WPC has issued a Slight Risk of excessive
rainfall over parts of the Southern Plains and Middle/Lower Mississippi
Valley from Wednesday into Thursday morning. The associated heavy rain
will create mainly localized areas of flash flooding, with urban areas,
roads, and small streams the most vulnerable.

Meanwhile, upper-level troughing associated with the front will aid in
creating rain over parts of the Pacific Northwest, Northern California,
Northern Intermountain Region, and Northern Rockies on Tuesday. The energy
will also create snow at the highest elevations over parts of Wyoming. On
Wednesday, the lingering upper-level troughing will keep rain and
highest-elevation snow over parts of the Northern Rockies.

Furthermore, the upper-level troughing over the Rockies will allow
temperatures to be 10 to 15 degrees below average over parts of the Great
Basin, the Northern Intermountain Region, and the Northern Rockies. East
of the upper-level troughing, upper-level ridging extends from the Gulf
Coast to the Upper Great Lakes that will allow temperatures to be 15 to 25
degrees above normal over parts of the Upper Mississippi Valley/Upper
Great Lakes, Middle Mississippi Valley, Ohio Valley, Lower Great Lakes,
and the Northeast.

Lastly, onshore flow off the Atlantic will aid in producing showers and
thunderstorms over parts of Florida from late Tuesday into Thursday.


Ziegenfelder


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

Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
300 AM EDT Tue Oct 03 2023

Valid 12Z Fri Oct 06 2023 - 12Z Tue Oct 10 2023

...Heavy rain and flash flooding threats ramp up in the Northeast
late week...


...Overview...

An upper trough and likely an embedded upper low are forecast to
swing slowly through the Great Lakes region southward late this
week into early next week, while a cold front sweeps through the
eastern U.S. at the surface. Rain chances will increase along and
ahead of the front, and heavy rainfall may cause flooding concerns
in the Northeast on Friday and Saturday. Some rain (with lake
effect enhancement) could linger into early next week underneath
the upper low. Meanwhile an upper ridge should overtake the
western U.S. for warmer than average temperatures and generally
dry conditions, until early next week when a trough and frontal
system could push into the Pacific Northwest.


...Guidance Evaluation/Predictability Assessment...

Model guidance is in reasonably good agreement with the trough
over the Great Lakes, with the past couple model cycles more
agreeable in forming a closed low within the trough likely over
the weekend. The closed low serves to slow down the movement of
the feature, with only a slow drift in its placement early next
week. Deterministic models do have some spread with its eventual
positioning. GFS runs including the 18Z and new 00Z run having the
upper low retrograde to the southwest does seem to be inconsistent
with other deterministic and ensemble guidance, so the GFS was not
preferred at this point.

Behind the upper trough/low, models also are agreeable with an
upper ridge shifting from the West Coast at the start of the
period Friday gradually into the Interior West over the
weekend/early next week and the central U.S. by Tuesday. Troughing
coming into the eastern Pacific stemming from an Alaskan upper low
shows some spread in its axis and depth but pretty minor for a
feature in that region for that lead time.

With the reasonably good consensus for the large scale pattern,
the WPC forecast used a blend of the deterministic guidance
particularly favoring the 18Z GFS and 12Z ECMWF early in the
period, transitioning to incorporate the ensemble means to half by
Day 6 and just over half Day 7 as model spread increased,
especially lessening the GFS proportion. Continuity from the
previous forecast was generally well maintained.


...Weather/Hazards Highlights...

As the upper trough and forming embedded low track across the
Great Lakes late week, Atlantic moisture is likely to flow into
the northeastern U.S., leading to increasing rain totals on Friday
and especially by Saturday along and ahead of the cold front.
Instability may be somewhat limited, but the forcing for ascent
will be strong with the right entrance region of the jet overhead,
and precipitable water anomalies are forecast to be at least above
the 75th if not the 90th percentile. Rain amounts look to increase
by Saturday, with upslope flow/terrain enhancement likely playing
a role in the Interior Northeast. Thus a Marginal Risk remains in
place across the Lower Great Lakes region and parts of the
northern Mid-Atlantic and Northeast for Day 4/Friday, with a
Slight Risk across the Interior Northeast on Day 5/Saturday. Most
heavy rain will exit by Sunday but some lingering showers are
possible underneath the upper low through early next week, with
lake effect rain showers likely.

Farther south, the tail end of the cold front could linger into
South Texas into at least Friday, sparking additional showers and
thunderstorms there after a few wet days. A Marginal Risk remains
in place for the Day 4 ERO/Friday. Rain amounts look to gradually
lessen this weekend into early next week. Meanwhile, conditions in
the West look to be dry under the upper ridge, aside from limited
showers possible in the Southwest. This is likely to change early
next week as a front and upper trough approach the Pacific
Northwest, causing increasing precipitation chances.

The amplified trough and the cold front will lead to cooler
temperatures than average, while the upper ridge to the west of it
supports above normal temperatures. One more warmer than average
day is possible in the Northeast on Friday, while high
temperatures across the Plains into Midwest will be below average
by 10-20F. Lows look to be a little less anomalous Friday morning
but could drop further on Saturday, with low 30s and perhaps a few
temperatures in the upper 20s in the northern half of the Plains,
creating the possibility of the first frost or freeze of the
season. As the upper trough and the cold front(s) march east into
the weekend, temperatures should cool to below average across the
east-central U.S. and eventually making their way to the Eastern
Seaboard by early next week. Meanwhile the arrival of an upper
ridge across the West will first raise temperatures along the West
Coast to 10-15F above normal, with some record warm lows possible.
The shift/expansion of the ridge farther east should lead to
warmer than average temperatures across the northern Rockies into
the High Plains early next week.


Tate


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, excessive rainfall outlook,
winter weather outlook probabilities, heat indices and Key
Messages are at:

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
340 AM EDT Tue Oct 03 2023

Valid 00Z Wed Oct 04 2023 - 00Z Wed Oct 11 2023

A land and sea breeze pattern will be in place over Hawaii for the
next few days, as trades diminish as a result of a weak pressure
gradient due to a surface low well north of the state pushing a
front across the Pacific and hovering north near the islands.
Clouds and any showers that form will favor that land/sea breeze
pattern through Tuesday and Wednesday. The front looks to stall
and dissipate just north of Hawaii around Wednesday
night/Thursday, with the band of moisture ahead of it perhaps
making it into the northwestern islands, but any enhanced rain
looks to stay north. By later in the week, a surface high is
forecast to form northwest of the state and extend its ridge
toward Hawaii, with its pressure gradient sufficient to reform
easterly trades. A hybrid trade/sea breeze pattern looks possible
on Thursday before a more typical trade wind pattern forms on
Friday and should persist through the weekend into early next
week, with any showers focused on windward/mauka areas.

Tate

Excessive Rainfall Discussion
NWS Weather Prediction Center College Park MD
429 AM EDT Tue Oct 03 2023

Day 1
Valid 12Z Tue Oct 03 2023 - 12Z Wed Oct 04 2023

...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL OVER PORTIONS OF
THE TEXAS COAST...


...Texas Coast...

Southeasterly flow from the Gulf of Mexico will interact with a
coastal trough to produce showers and thunderstorms this afternoon
and early evening. Heavy rainfall is possible within the Slight
Risk area, between Houston and Corpus Christi this afternoon, when
instability will be at its peak (1000-15000J/Kg). There will be
plenty of moisture present, despite the lack of dynamic support,
with PWATs between 2-2.5" along the Texas coast. HREF neighborhood
exceedance probabilities of 2-5" are reasonably high at this time
so those were used as a proxy for this day 1 Slight Risk area.


...Great Plains and Upper Midwest...

A cold front moving across the Great Plains will act as a focus
for showers and thunderstorms today. Some locally heavy rain could
cause flash flooding, particularly over parts of eastern South
Dakota/Nebraska, but considering how dry the region is, that
threat is low for the most part. However, there's an increasing
signal for heavy rainfall to develop over portions of west Texas
south of Midland late this afternoon and evening. HREF exceedance
probabilities of over 2" are high for that area and there will be
substantial instability in place (1500-2000J/Kg) so an afternoon
upgrade may be necessary if upward trends continue.


Kebede


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

Excessive Rainfall Discussion
NWS Weather Prediction Center College Park MD
430 AM EDT Tue Oct 03 2023

Day 2
Valid 12Z Wed Oct 04 2023 - 12Z Thu Oct 05 2023

...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL OVER PORTIONS OF
THE SOUTHERN PLAINS AND THE LOWER/MIDDLE MISSISSIPPI VALLEY...


...Southern Plains and Lower/Middle Mississippi Valley

There continues to be reasonably high confidence of an excessive
rainfall event unfolding across eastern Oklahoma, western Arkansas
and northeastern Texas on Wednesday. Embedded shortwave energy
within an amplified upper trough will provide ample forcing for
waves of convection to propagate across Oklahoma and north Texas
beginning tonight and continuing on Wednesday. Plenty divergence
aloft and sufficient low level jet support will promote forcing
for heavy rainfall. Instability between 500-1000J/Kg and PWATs
between 1.75-2.25" should support rain rates of over 1.5" with
locally higher amounts. We're expecting between 3-5" of 24hr QPF
for much of the slight risk area with locally higher amounts
possible. An upgrade could be possible if things like the ensemble
means (GEFS and ECE) come into better agreement with respect to
the axis of heaviest precip. The GEFS favors a more northerly
solution while the ECE is farther to the south. 24hr exceedance
probabilities of over 2" remain high though for both ensemble
means. Some heavy rainfall may also develop over parts of Texas'
central Gulf Coast where they're expected to receive some
antecedent heavy rain today, which will make their soils
vulnerable to runoff.


Kebede

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

Excessive Rainfall Discussion
NWS Weather Prediction Center College Park MD
436 AM EDT Tue Oct 03 2023

Day 3
Valid 12Z Thu Oct 05 2023 - 12Z Fri Oct 06 2023

...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL OVER PORTIONS OF
THE SOUTHERN TEXAS...


...Southern Texas...

There's a decreasing signal for heavy rain over parts of southern
Texas along the southern periphery of a cold front on Thursday.
Upper-level energy associated with the deep parent low in Canada
will swing through Texas and provide forcing for showers and
thunderstorms to develop across southern portions of the state.
The guidance has trended farther north with the favorable jet
dynamics, however this does not mean that the excessive threat
does not exist as there are still some areas which have received
heavy rain recently and are susceptible to flash flooding within
the current Slight Risk area. The latest guidance shifting the
axis of heaviest rainfall into northern Mexico just south of the
Rio Grande among other factors, makes our current Slight Risk area
a low confidence one.


Kebede

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

Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
300 AM EDT Tue Oct 03 2023


As the upper trough and forming embedded low track across the
Great Lakes late week, Atlantic moisture is likely to flow into
the northeastern U.S., leading to increasing rain totals on Friday
and especially by Saturday along and ahead of the cold front.
Instability may be somewhat limited, but the forcing for ascent
will be strong with the right entrance region of the jet overhead,
and precipitable water anomalies are forecast to be at least above
the 75th if not the 90th percentile. Rain amounts look to increase
by Saturday, with upslope flow/terrain enhancement likely playing
a role in the Interior Northeast. Thus a Marginal Risk remains in
place across the Lower Great Lakes region and parts of the
northern Mid-Atlantic and Northeast for Day 4/Friday, with a
Slight Risk across the Interior Northeast on Day 5/Saturday. Most
heavy rain will exit by Sunday but some lingering showers are
possible underneath the upper low through early next week, with
lake effect rain showers likely.

Farther south, the tail end of the cold front could linger into
South Texas into at least Friday, sparking additional showers and
thunderstorms there after a few wet days. A Marginal Risk remains
in place for the Day 4 ERO/Friday. Rain amounts look to gradually
lessen this weekend into early next week. Meanwhile, conditions in
the West look to be dry under the upper ridge, aside from limited
showers possible in the Southwest. This is likely to change early
next week as a front and upper trough approach the Pacific
Northwest, causing increasing precipitation chances.

The amplified trough and the cold front will lead to cooler
temperatures than average, while the upper ridge to the west of it
supports above normal temperatures. One more warmer than average
day is possible in the Northeast on Friday, while high
temperatures across the Plains into Midwest will be below average
by 10-20F. Lows look to be a little less anomalous Friday morning
but could drop further on Saturday, with low 30s and perhaps a few
temperatures in the upper 20s in the northern half of the Plains,
creating the possibility of the first frost or freeze of the
season. As the upper trough and the cold front(s) march east into
the weekend, temperatures should cool to below average across the
east-central U.S. and eventually making their way to the Eastern
Seaboard by early next week. Meanwhile the arrival of an upper
ridge across the West will first raise temperatures along the West
Coast to 10-15F above normal, with some record warm lows possible.
The shift/expansion of the ridge farther east should lead to
warmer than average temperatures across the northern Rockies into
the High Plains early next week.


Tate

Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
300 AM EDT Tue Oct 03 2023


As the upper trough and forming embedded low track across the
Great Lakes late week, Atlantic moisture is likely to flow into
the northeastern U.S., leading to increasing rain totals on Friday
and especially by Saturday along and ahead of the cold front.
Instability may be somewhat limited, but the forcing for ascent
will be strong with the right entrance region of the jet overhead,
and precipitable water anomalies are forecast to be at least above
the 75th if not the 90th percentile. Rain amounts look to increase
by Saturday, with upslope flow/terrain enhancement likely playing
a role in the Interior Northeast. Thus a Marginal Risk remains in
place across the Lower Great Lakes region and parts of the
northern Mid-Atlantic and Northeast for Day 4/Friday, with a
Slight Risk across the Interior Northeast on Day 5/Saturday. Most
heavy rain will exit by Sunday but some lingering showers are
possible underneath the upper low through early next week, with
lake effect rain showers likely.

Farther south, the tail end of the cold front could linger into
South Texas into at least Friday, sparking additional showers and
thunderstorms there after a few wet days. A Marginal Risk remains
in place for the Day 4 ERO/Friday. Rain amounts look to gradually
lessen this weekend into early next week. Meanwhile, conditions in
the West look to be dry under the upper ridge, aside from limited
showers possible in the Southwest. This is likely to change early
next week as a front and upper trough approach the Pacific
Northwest, causing increasing precipitation chances.

The amplified trough and the cold front will lead to cooler
temperatures than average, while the upper ridge to the west of it
supports above normal temperatures. One more warmer than average
day is possible in the Northeast on Friday, while high
temperatures across the Plains into Midwest will be below average
by 10-20F. Lows look to be a little less anomalous Friday morning
but could drop further on Saturday, with low 30s and perhaps a few
temperatures in the upper 20s in the northern half of the Plains,
creating the possibility of the first frost or freeze of the
season. As the upper trough and the cold front(s) march east into
the weekend, temperatures should cool to below average across the
east-central U.S. and eventually making their way to the Eastern
Seaboard by early next week. Meanwhile the arrival of an upper
ridge across the West will first raise temperatures along the West
Coast to 10-15F above normal, with some record warm lows possible.
The shift/expansion of the ridge farther east should lead to
warmer than average temperatures across the northern Rockies into
the High Plains early next week.


Tate

Probabilistic Heavy Snow and Icing Discussion
NWS Weather Prediction Center College Park MD
410 AM EDT Tue Oct 03 2023

Valid 12Z Tue Oct 03 2023 - 12Z Fri Oct 06 2023

...Wyoming Rockies...
Day 1...

The upper trough remnant that was a Great Basin low on Monday will
continue to lift northeast from central WY today. Light to locally
moderate precip will continue today with flow becoming westerly
over the WY Rockies. Snow levels dip to around 8000ft this morning
then rise to around 8500ft this afternoon before precip tapers off
with height rises from the approaching upper trough. Day 1 snow
probabilities for additional accumulations after 12Z are 20 to 40
percent for 4"+ for the higher Absarokas (including the Red
Lodge/Beartooth area in MT), Tetons, Wind River, and Bighorns,
with a localized risk for 8" max.

A warm ridge builds over the West into Friday and persists through
the weekend, bringing an end to this early season wintry weather
(and likely melting all but the highest fresh snow packs.


The probability of any ice accumulation across the Continental
U.S. is less than 10 percent.

Jackson

Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
300 AM EDT Tue Oct 03 2023

Valid 12Z Fri Oct 06 2023 - 12Z Tue Oct 10 2023

...Heavy rain and flash flooding threats ramp up in the Northeast
late week...


...Overview...

An upper trough and likely an embedded upper low are forecast to
swing slowly through the Great Lakes region southward late this
week into early next week, while a cold front sweeps through the
eastern U.S. at the surface. Rain chances will increase along and
ahead of the front, and heavy rainfall may cause flooding concerns
in the Northeast on Friday and Saturday. Some rain (with lake
effect enhancement) could linger into early next week underneath
the upper low. Meanwhile an upper ridge should overtake the
western U.S. for warmer than average temperatures and generally
dry conditions, until early next week when a trough and frontal
system could push into the Pacific Northwest.


...Guidance Evaluation/Predictability Assessment...

Model guidance is in reasonably good agreement with the trough
over the Great Lakes, with the past couple model cycles more
agreeable in forming a closed low within the trough likely over
the weekend. The closed low serves to slow down the movement of
the feature, with only a slow drift in its placement early next
week. Deterministic models do have some spread with its eventual
positioning. GFS runs including the 18Z and new 00Z run having the
upper low retrograde to the southwest does seem to be inconsistent
with other deterministic and ensemble guidance, so the GFS was not
preferred at this point.

Behind the upper trough/low, models also are agreeable with an
upper ridge shifting from the West Coast at the start of the
period Friday gradually into the Interior West over the
weekend/early next week and the central U.S. by Tuesday. Troughing
coming into the eastern Pacific stemming from an Alaskan upper low
shows some spread in its axis and depth but pretty minor for a
feature in that region for that lead time.

With the reasonably good consensus for the large scale pattern,
the WPC forecast used a blend of the deterministic guidance
particularly favoring the 18Z GFS and 12Z ECMWF early in the
period, transitioning to incorporate the ensemble means to half by
Day 6 and just over half Day 7 as model spread increased,
especially lessening the GFS proportion. Continuity from the
previous forecast was generally well maintained.


...Weather/Hazards Highlights...

As the upper trough and forming embedded low track across the
Great Lakes late week, Atlantic moisture is likely to flow into
the northeastern U.S., leading to increasing rain totals on Friday
and especially by Saturday along and ahead of the cold front.
Instability may be somewhat limited, but the forcing for ascent
will be strong with the right entrance region of the jet overhead,
and precipitable water anomalies are forecast to be at least above
the 75th if not the 90th percentile. Rain amounts look to increase
by Saturday, with upslope flow/terrain enhancement likely playing
a role in the Interior Northeast. Thus a Marginal Risk remains in
place across the Lower Great Lakes region and parts of the
northern Mid-Atlantic and Northeast for Day 4/Friday, with a
Slight Risk across the Interior Northeast on Day 5/Saturday. Most
heavy rain will exit by Sunday but some lingering showers are
possible underneath the upper low through early next week, with
lake effect rain showers likely.

Farther south, the tail end of the cold front could linger into
South Texas into at least Friday, sparking additional showers and
thunderstorms there after a few wet days. A Marginal Risk remains
in place for the Day 4 ERO/Friday. Rain amounts look to gradually
lessen this weekend into early next week. Meanwhile, conditions in
the West look to be dry under the upper ridge, aside from limited
showers possible in the Southwest. This is likely to change early
next week as a front and upper trough approach the Pacific
Northwest, causing increasing precipitation chances.

The amplified trough and the cold front will lead to cooler
temperatures than average, while the upper ridge to the west of it
supports above normal temperatures. One more warmer than average
day is possible in the Northeast on Friday, while high
temperatures across the Plains into Midwest will be below average
by 10-20F. Lows look to be a little less anomalous Friday morning
but could drop further on Saturday, with low 30s and perhaps a few
temperatures in the upper 20s in the northern half of the Plains,
creating the possibility of the first frost or freeze of the
season. As the upper trough and the cold front(s) march east into
the weekend, temperatures should cool to below average across the
east-central U.S. and eventually making their way to the Eastern
Seaboard by early next week. Meanwhile the arrival of an upper
ridge across the West will first raise temperatures along the West
Coast to 10-15F above normal, with some record warm lows possible.
The shift/expansion of the ridge farther east should lead to
warmer than average temperatures across the northern Rockies into
the High Plains early next week.


Tate


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, excessive rainfall outlook,
winter weather outlook probabilities, heat indices and Key
Messages are at:

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