Old Res Weather
Lexington, Massachusetts, USA
35°F
2/16/2025 7:17pm
- Clear
-
35.1°F / 1.7°C
-
32.4°F
- 90%
- Calm, 10-min avg: Calm, gust: None
-
- 10 miles
- 0.01 in
- $VPuv None
National Short Range Forecast Discussion
Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 1225 PM EDT Mon Apr 27 2026 Valid 00Z Tue Apr 28 2026 - 00Z Thu Apr 30 2026 ...Several days of severe weather and heavy rainfall expected over the Mid to Lower Mississippi Valleys into the Mid-South... ...Critical fire weather conditions continue across the Southern High Plains... ...Below average temperatures across Central/Northern Plains on Tuesday, while above normal temperatures continue ahead of the cold front... A shortwave trough will lift from the Central Plains into the Great Lakes by early Tuesday morning, pushing the surface low and associated frontal system northeast. The cold front will stretch from the Upper Great downward into the Southern Plains/Lower Mississippi Valley and will interact with unstable Gulf moisture. This will bring showers and thunderstorms across the Great Lakes downward into Lower Mississippi Valley/Southeast through Wednesday. For the remainder of Monday, chances for heavy rainfall and severe thunderstorms will continue over parts of mid to lower Mississippi Valley into Upper Great Lakes and Ohio Valley. Additional risk associated with the storm will be scattered large hail, flooding, severe/damaging winds, and strong to intense tornadoes across parts of mid Mississippi/Lower Ohio Valley. On Tuesday, the upper-level forcing and sufficient moisture will continue to support scattered clusters and lines of thunderstorms, which may produce heavy rainfall over parts of Southern Plains into Tennessee Valley and Southeast. Therefore, Weather Prediction Center (WPC) has issued a Slight Risk for Excessive Rainfall with the chance for flash flooding over ArkLaTex into the Mid-South for Tuesday. In addition, Storm Prediction Center (SPC) had issued a Slight Risk for severe thunderstorms across the Southeastern Great Plains through Lower Mississippi and Tennessee Valley. By Wednesday night into Thursday, the cold front will progress towards the Appalachians and Mid-Atlantic, bringing chances for showers and thunderstorms along the front, while showers will overspread the Great Lakes into the Northeast. Over the southern High Plains, Critical Fire Weather conditions continues as dry airmass persist over the southwest and southern High Plains. With the lack of moisture recovery, strong low-level winds and dry fuels, parts of New Mexico and Texas will continue to see fire weather concerns into Wednesday. Much of northern Texas and northeastern-eastern New Mexico have issued Red Flag Warnings for the rest of Monday, with a Fire Weather Watch remaining in effect through Tuesday. Conditions are expected to improve on Wednesday, as precipitation is forecast to develop over the area. Above normal temperatures will persist ahead of the cold front for much of Texas into parts of Ohio/Tennessee Valley and Southeast for Tuesday, while below normal temperatures persist over Northern/Central Plains. By Thursday, the cold front will move eastward bring drier and cooler conditions into much of the eastern U.S. with temperatures dropping to 10-15 degrees below average. Above normal temperatures build over the Pacific Northwest a upper-level ridge moves into the area. Oudit Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php