


Prognostic Meteorological Discussion
Issued by NWS
Issued by NWS
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709 FXUS01 KWBC 070749 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 348 AM EDT Tue Oct 07 2025 Valid 12Z Tue Oct 07 2025 - 12Z Thu Oct 09 2025 ...Heavy rain may cause flash flooding over the Ohio Valley/central Appalachians today into tonight... ...Scattered flash flooding is possible across the Southwest, particularly New Mexico... A cold front is forecast to slowly move across the east-central U.S. today and tonight, reaching the Eastern Seaboard on Tuesday. Gulf moisture streaming north will pool along and ahead of the front, leading to rain and thunderstorms stretching from the Great Lakes through the Ohio and Tennessee Valleys and Appalachians into the Southeast and Gulf Coast. The heaviest rain of around 2 to 4 inches is possible in Kentucky and vicinity. A Slight Risk (level 2/4) of excessive rainfall causing flash flooding is in effect across parts of the Ohio Valley into the central Appalachians through tonight. Rain chances will march eastward with the front tonight into Wednesday morning, reaching the Northeast and Mid-Atlantic before clearing out during the day Wednesday, though lingering in the Carolinas. A weak surface trough may also lead to showers and storms across the Florida Peninsula over the next couple of days. The backside of the frontal boundary is forecast to stall in the Southwest with waves of low pressure. Combined with tropical Pacific moisture starting to stream north, rain and thunderstorms are likely for New Mexico in particular. A Slight Risk (level 2/4) is also in place for parts of New Mexico for locally heavy rain causing flash flooding today. Burn scars and urban areas will be particularly vulnerable to flooding. The Storm Prediction Center indicates a Marginal Risk (level 1/5) of severe weather for isolated high wind and hail threats across central New Mexico as well. This will be the start of a multi-day period of thunderstorms and locally heavy rainfall across the Southwest, given tropical moisture streaming north from Hurricane Priscilla in the eastern Pacific, though exact placement and rain amounts will vary from day to day. The cold front will be a dividing line between above normal temperatures to its south and east, and near to below normal temperatures behind it. Another warmer than average day is in store from the Gulf Coast states toward the Eastern Seaboard today. The Northeast should see the most anomalous temperatures of 10 to 20 degrees above normal as highs rise to around 80 degrees, and a few daily record highs are possible. The cold frontal passage by Wednesday will drop high temperatures to near normal there. Behind the front, some Freeze Warnings and Frost Advisories are in place for parts of the north-central U.S. this morning, with some in Minnesota and Wisconsin lasting through Wednesday morning. Highs are forecast to only be in the 60s as far south as the Oklahoma and Texas Panhandles today, which is around 15 to 20 degrees below average. Cooler temperatures will start to moderate closer to average by Wednesday, while areas of the Intermountain West warm to above normal as an upper ridge builds. However, the Pacific Northwest should cool on Wednesday as a cold front comes in, also prompting light precipitation (with mix or snow possible for the highest peaks of the Cascades). Tate Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$