Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
400 AM EDT Tue Apr 23 2019
Valid 12Z Tue Apr 23 2019 - 12Z Thu Apr 25 2019
...Severe thunderstorms and heavy to excessive rainfall possible across
parts of the Texas Tuesday and Wednesday...
...Well below normal temperatures expected across the Southern Plains,
while the Western U.S. and northern Plains will be very warm...
A slow moving frontal boundary will move southward through the Southern
Plains the next few days with thunderstorms and moderate to heavy rainfall
likely across Texas. On Tuesday, the Storm Prediction Center has a slight
risk for severe weather over parts of west and central Texas, with the
threat shifting into eastern Texas by Wednesday. WPC highlights roughly
the same areas within a marginal to slight risk for excessive
rainfall/flash flooding as well for these days. As much as 2 to 4 inches
of rain, with locally higher amounts, is forecast across central and
eastern Texas. This activity should shift into the lower Mississippi
Valley by Thursday as a dominate surface low develops along the boundary.
Scattered showers and storms will also be possible along this same
boundary from the Mississippi Valley to the Ohio Valley today, and into
the Northeast by Wednesday. Temperatures ahead of this boundary in the
East on Tuesday and Wednesday will be warm, with daytime highs averaging 5
to 15 degrees above average. The cold front will usher in much cooler
weather Tuesday and Wednesday across the Southern Plains where afternoon
temps will struggle to get out of the 60s, which is 10 to 20+ degrees
below normal for this time of the year.
Out west, a weak system entering the Pacific Northwest on Tuesday may
spark light and scattered rain for parts of the Northwest and Northern
Rockies, with showers increasing across the Northern Plains and Upper
Midwest by late Wednesday and Thursday as the system shifts east.
Temperatures across the remainder of the West into the Northern and
Central Plains will very warm (10 to 20+ degrees above normal) as a strong
ridge of high pressure builds and expands across the region.
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php