Old Res Weather
Lexington, Massachusetts, USA
35°F
2/16/2025 7:17pm
- Few Clouds
-
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 400 AM EDT Fri Jun 12 2026 Valid 12Z Fri Jun 12 2026 - 12Z Sun Jun 14 2026 ...Strong to severe thunderstorms expected later today from the Mid-Atlantic to the Northeast... ...Strong to severe thunderstorms with heavy rainfall threat emerges over the central U.S. this weekend... ...Another day of heat advisories from the Mid-Atlantic to New England before moderating by the weekend... A couple of cold fronts moving from the mid-section of the country toward the East Coast will be the impetuses for a couple of focused rounds of strong to severe thunderstorms. The leading cold front crossing into the Great Lakes, Midwest, and through the southern Plains this morning will advance steadily into the East Coast later today as a heatwave is forecast to reach its peak along the East Coast. Temperatures are expected to soar once again well up into the 90s this afternoon for much of the East Coast and into the lower 100s from portions of southern Virginia to North Carolina with triple-digit heat indices. Strong to severe thunderstorms are expected later today from the Mid-Atlantic to the Northeast as the cold front plows through these areas. Cooler and drier air behind the front will spread into the eastern U.S. on Saturday but high temperatures will remain well into the 80s to lower 90s. Meanwhile, temperatures into the upper 90s with humidity will be confined to the Southeast on Saturday. A second cold front, accompanied with a stronger surge of cool air from Canada, will plunge into the mid-section of the country. Temperatures behind this front will drop well down into the 40s across the northern U.S. by Sunday morning. As the cold front plunges southward, it will interact with a low pressure wave located over the central Plains to trigger a round of strong to severe thunderstorms together with heavy rainfall. The timing of the inclement weather is forecast to begin during the day on Saturday over the central Plains, expanding toward the southern Plains, into the mid-Mississippi Valley and Midwest Saturday night into Sunday morning. Elsewhere, a round of generally light rainfall is expected tonight into Saturday morning across Montana associated with the second cold front. Some monsoonal type of showers are forecast to emerge over the Four Corners and southern Rockies later on Saturday. The Desert Southwest and the Central Valley of California will remain hot into the weekend with highs into the 110s and 100s respectively. Meanwhile, heat is forecast to build across the Pacific Northwest with record high temperatures possibly reaching into the 80s and lower 90s by Sunday afternoon. Kong Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php