Old Res Weather
Lexington, Massachusetts, USA
35°F
2/16/2025 7:17pm
-
35.1°F / 1.7°C
-
32.4°F
- 90%
- Calm, 10-min avg: Calm, gust: None
-
- 0.01 in
- $VPuv None
National Short Range Forecast Discussion
Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 258 AM EDT Sat Jun 14 2025 Valid 12Z Sat Jun 14 2025 - 12Z Mon Jun 16 2025 ...Heavy to Excessive Rainfall likely across portions of the Plains, Midwest, and East into Monday... ...Severe weather possible across the High Plains and Northern Plains this weekend into Monday... ...Heatwave continues for the Desert Southwest and southern Rockies with highs reaching the 110s... Widespread coverage of showers and thunderstorms from the Rockies to the East Coast around the periphery of a slow-moving deep layer cyclone will be the primary cause of hazards through Monday. Other players in the flow pattern near the Lower 48 include an upper trough over the Northwest and strengthening ridging across New Mexico and vicinity. A deep layer cyclone will drift eastward from the Midwest towards the Appalachians, and near the surface low and its attendant fronts will be numerous showers and thunderstorms within an anomalously moist air mass. This sets the stage for flash flooding. Portions of Virginia and North Carolina will see flash flooding as the primary hazard. The Southern Plains, Central Plains, and Midwest, will be a focus for both flash flooding and severe weather hazards this weekend. Across portions of the Northern Plains and High Plains, severe weather is the larger concern through Monday disturbances aloft ejecting eastward ahead of the Northwestern upper level trough play a role in increasing effective bulk shear within a moist and unstable air mass. It will continue to be hot and dry across lower elevations of the interior Western U.S. as the upper level ridge strengthens. The most impactful heat will be across the lower elevations of the Desert Southwest where afternoon highs reach the 110s; an extreme heat warning is in effect for portions of the region. There are also elevated fire weather concerns across portions of western Nevada and northeast California where Red Flag Warnings are in effect for Saturday. The coolest areas in the country will be north of a frontal boundary across the Great Lakes areas to the Northeast, with refreshingly cool conditions and highs mainly in the 70s and 60s. South of the front, across portions of the Southern and Central Plains, Southeast, and Gulf Coast, a seasonably hot and humid airmass will remain in place. Roth Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php