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KF5JRV > WX 28.04.21 15:37l 67 Lines 2980 Bytes #999 (0) @ USBBS
BID : 14257_KF5JRV
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Subj: NWS USA WX Forecast - Apr 28
Path: IZ3LSV<IQ2LB<IK1NHL<CX2SA<OK2PEN<NA7KR<ZL2BAU<GB7YEW<AB0AF<W0ARP<
KF5JRV
Sent: 210428/1126Z 14257@KF5JRV.#NWAR.AR.USA.NA BPQ6.0.20
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
448 AM EDT Wed Apr 28 2021
Valid 12Z Wed Apr 28 2021 - 12Z Fri Apr 30 2021
...There is a Moderate risk of Excessive Rainfall over parts of the
Southern Plains...
...There is a Slight risk of Severe Thunderstorms over parts of the
Southern Plains and the Lower Great Lakes through Thursday morning...
...There is a chance for record-breaking hi minimum temperatures over the
East and below-average temperatures over the Southern Rockies/Southwest
into the Central High Plains...
A slow-moving front extending from the northern Mid-Atlantic westward to
Michigan, then southwest to the Central/Southern Plains will inch eastward
off the Northeast/Mid-Atlantic Coast by Friday. The southern part of the
boundary will extend from the Southeast to the Central/Western Gulf Coast
on Friday. Showers and thunderstorms will develop along and ahead of the
front from the Middle Mississippi Valley eastward to parts of the
Northeast. The SPC has issued a Slight risk of severe thunderstorms over
the Lower Great Lakes through Thursday morning. The main hazards with the
severe thunderstorms are frequent lightning, severe thunderstorm wind
gusts, hail, and a few tornadoes.
Additionally, showers and thunderstorms will develop along and ahead of
the front over parts of the Central/Southern Plains. The SPC has issued a
Slight risk of severe thunderstorms over parts of the Southern Plains
through Thursday morning. The main hazards with the severe thunderstorms
are frequent lightning, severe thunderstorm wind gusts, hail, and a few
tornadoes. There is a 10% or greater probability of two-inch hail over
parts of south-central Texas.
The thunderstorms will produce heavy rain from parts of the Ohio Valley to
the Southern Plains. The WPC has issued a Moderate risk of excessive
rainfall over parts of the Southern Plains through Thursday morning. The
heavy rain associated with the thunderstorms will produce numerous areas
of flash flooding over this region. Many streams may flood, potentially
affecting larger rivers. The severe weather threat will lessen somewhat
on Thursday as showers and thunderstorms continue along and ahead of the
boundary. The showers and thunderstorms will continue to develop along
and ahead of the front through Friday morning. In the warm sector, south
of the front, there is a chance for record-breaking hi minimum
temperatures over the East on Wednesday into Thursday.
Meanwhile, under the upper-level low over the Four Corners Region, rain
and higher elevation snow will develop over parts of the Central/Southern
Rockies and the Southwest on Wednesday, ending on Thursday morning.
Additionally, under the upper low, temperatures will be 10 to 15 degrees
below average on Wednesday.
Ziegenfelder
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
73 de Scott KF5JRV
Pmail: KF5JRV@KF5JRV.#NWAR.AR.USA.NA
Email KF5JRV@gmail.com
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