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Short Range Public Discussion
(Caution: Version displayed is not the latest version. - Issued 1941Z Jun 05, 2023)
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Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 341 PM EDT Mon Jun 05 2023 Valid 00Z Tue Jun 06 2023 - 00Z Thu Jun 08 2023 ...There is a Slight Risk of excessive rainfall over parts of the Southern High Plains through Wednesday... ...Much cooler than normal over much of California/Southwest and the Northeast... ...Periods of smoky conditions and poor air quality around the Great Lakes... A rather strung-out omega block pattern will feature an upper low moving into Southern California with another just offshore New England while an upper high meanders over southern central Canada into the northern Plains. This orientation will act to maintain cooler than normal temperatures over much of the Southwest and Northeast for the next couple of days while much warmer than normal temperatures are favored over the Pacific Northwest into the Plains. The northeasterly flow out of southeastern Canada will be responsible for bringing in smoky/hazy and poor air quality conditions to parts of the Northeast and Great Lakes this afternoon/evening. Across parts of the southern High Plains (especially New Mexico into the Texas Panhandle), adequate moisture and afternoon instability may yield locally heavy rain where it has been quite wet recently, which could cause some flooding concerns. WPC has outlined a Slight Risk of excessive rainfall for this region through Wednesday, which includes some burn scar areas. More isolated to scattered shower and storms are forecast for portions of the Rockies and into the Sierra as well. The stalled system off New England will bring in bouts of rainfall to parts of the Northeast over the next couple of days as it spins just offshore. A frontal boundary on its southwest side will be reinforced from the north as cooler air wraps all the way around the system, bringing in drier than normal air as well to areas of the Mid-Atlantic and into the Southeast with dew points into the 40s (OH River Valley) to mid 60s (Southeast away from the coast). Over the Upper Midwest/Corn Belt, scattered showers and some thunderstorms are possible through Wednesday as well. Fracasso Graphics available at