Old Res Weather
Lexington, Massachusetts, USA
56°F
9/26/2023 6:02pm
- Clear
-
56.1°F / 13.4°C
-
45.3°F
-
67%
- 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 256 PM EDT Tue Sep 26 2023 Valid 00Z Wed Sep 27 2023 - 00Z Fri Sep 29 2023 ...Below average temperatures to persist across the Pacific Northwest into the Northern Rockies and across the Mid-Atlantic and Southeast... ...Above average temperatures expected across from the Southwest, through the Rockies, Plains, Mississippi Valley, Upper Lakes and northern New England... ...Wet weather to continue across much of Florida into the coastal Southeast, across the Mid-West into the Ohio Valley and across the Pacific Northwest... The first full week of fall will continue to show big temperature differences across the nation with generally below average temperatures along portions of the east coast and Pacific Northwest and above average temperatures in between. A series of cold fronts have been moving off the northeast Pacific and into the northwestern U.S, providing much needed rains to regions currently in extreme to exceptional drought conditions and also resulting in temperatures well below average. High temperatures over the next few days are forecast to remain 10 to 15 degrees below average from northern California, across the Pacific Northwest and into the Northern Rockies. Below average temperatures also expected to persist into mid week along portions of the east coast where low level clouds remain stuck from a combination of cool surface high pressure nosing southward from southeast Canada and a nearly stationary surface low spinning off the Mid-Atlantic coast. In between the two regions of below average temperatures, above average warmth will stretch from the Southwest, through the Rockies, Plains, Mississippi Valley, Upper Great Lakes and into Northern New England. While no record highs are anticipated across these regions, temperatures will be more summer like than fall like. These areas will also remain dry, bringing no relief to the extreme to exceptional drought conditions that stretch across large portions of the Southern to Central Plains, Upper and Lower Mississippi Valley and portions of the Southwest. In contrast, wet weather will continue over the next few days across much of Florida into the coastal Southeast where above average moisture values will continue to be transported northeastward across these regions on the eastern side of a mid to upper level low across the Gulf of Mexico. A slow moving mid to upper level low across the Great Lakes into the Ohio Valley region will also keep conditions wet across these regions over the next few days. In both regions of wet weather, areas of heavy rains may produce isolated flash flooding, especially in urbanized regions. Oravec Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php