Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
239 AM EDT Sun May 14 2023

Valid 12Z Sun May 14 2023 - 12Z Tue May 16 2023

...Record breaking heat in the Pacific Northwest...

...Additional heavy rain and flooding possible for parts of the Southern
Plains and Middle Mississippi Valley...

A quasi-stationary front draped across the Southern Plains and Middle
Mississippi Valley will be the focus for additional heavy rainfall over
the next couple of days. Bits of upper-level energy flowing along a
north-south axis from the Gulf into the Central Plains will enhance
instability and moisture over the region leading to increased thunderstorm
activity. Slight Risks of Excessive Rainfall leading to Flash flooding are
in effect over parts of the Texas Gulf Coast over the next couple of days
due to the heavy rainfall potential over well saturated soils from this
weekend's storms. Additional rainfall of 1-2" are possible over portions
of south Texas and the Middle Mississippi Valley by Tuesday morning.
Things should quiet down across the aforementioned areas by midweek as the
front sags southward into the Gulf.

Record breaking heat will impact the Pacific Northwest over the next
couple of days while well below average temperatures impact the Great
Plains. High temperatures will be in the upper 80s and 90s, while lows
will be in the upper 50s and 60s across coastal Washington and Oregon
today, which may tie or break existing records. These temperatures will be
20-30+ degrees above average for this time of year. Temperatures will
remain above average across the Deep South, while upper troughing will
bring cooler air to much of the northeastern quadrant of the country.
Showers and thunderstorms may develop in the Mid-Atlantic and Southeast
coast along the stationary boundary extending from the Middle Mississippi
Valley into the Atlantic.

Kebede

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