


Prognostic Meteorological Discussion
Issued by NWS
Issued by NWS
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554 FXUS01 KWBC 301847 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 246 PM EDT Mon Jun 30 2025 Valid 00Z Tue Jul 01 2025 - 00Z Thu Jul 03 2025 ...An active summer time thunderstorm pattern for much of the southern and eastern CONUS next few days, while dry conditions expected across the West into the north central U.S... ...Much above average temperatures across the West Tuesday and from the Pacific Northwest into the Northern Rockies and Northern Plains on Wednesday, but no record highs expected... ...Below average temperatures for the Southern High Plains and Southeast... ...Fire weather threats across California and the Great Basin... An active summer time thunderstorm pattern on tap for large portions of the nation from the Southern High Plains, eastward across much of the southern and eastern portions of the nation, focusing along and ahead of of a slow moving frontal boundary across these areas. Moisture values in the vicinity of this front are forecast to remain above average, supporting heavy rain potential across a large section of the southern and eastern CONUS. Flood watches are currently in effect across portions of the Southern High Plains, western Pennsylvania and far western New York State. However, with the potential for widespread thunderstorms and heavy rains over the next two days across the South and East, localized flash flooding will be possible, especially in more urbanized regions. In addition to the heavy rains and flash flooding threats in this active thunderstorm pattern, severe weather is also possible with high winds and large hail the most likely type of severe weather. Temperature wise, much above average temperatures expected Tuesday across the Southwest, Rockies, Pacific Northwest and Northern Plains. Excessive heat warnings are currently in effect across southern Arizona and southeast California, while heat advisories are in effect across portions of the Great Basin, Pacific Northwest, Lower Mississippi Valley and Mid Atlantic. These above average temperatures will continue Wednesday across the Northern Great Basin, Northern Rockies and Northern Plains, with cooler temperatures expected across the Southwest, Lower Mississippi Valley and Mid-Atlantic. Even in regions that will see much above average temperatures over the next few days, there is not currently expected to be any record high temperatures. Much below average temperatures expected over the Southern High Plains Tuesday and Wednesday where shower/thunderstorm activity will keep conditions cool. Below average temperatures also likely across the southeastern portion of the CONUS the next few days. While wet weather is in store for the southern and eastern U.S. over the next two days, dry weather is likely from the north central U.S., west across much of the Northern Rockies, Northwest, Great Basin and California and the Southwest. These dry conditions will continue to support fire weather conditions across the West over the next two days, with Red Flag warnings currently in effect across northern California and the Great Basin. Oravec Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$