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Short Range Public Discussion
 
(Caution: Version displayed is not the latest version. - Issued 1943Z Aug 18, 2019)
 
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Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 343 PM EDT Sun Aug 18 2019 Valid 00Z Mon Aug 19 2019 - 00Z Wed Aug 21 2019 ...Scattered showers and thunderstorms will continue across the eastern half of the United States... ...Heavy rainfall and localized flooding expected for portions of northern Florida... ...Potentially record-setting heat persists across much of the southern tier and stretching into the East... ...Elevated fire conditions for portions of the West... Scattered showers and thunderstorms are currently forming ahead of a cold front moving through the Midwest today and toward the Lower Great Lakes and Ohio Valley on Monday. Farther south, the front is expected to stall in the Central Plains and Middle Mississippi Valley. Some storms could be severe, especially from lower Michigan to southern Illinois today, where the Storm Prediction Center has outlooked a Slight Risk of severe weather. Locally heavy rainfall and isolated flash floods are also possible with these storms, which will spread toward the Northeast on Monday. By Tuesday, another cold front will approach the central U.S. and bring another round of possible severe weather. A weakening frontal boundary will remain over the Southeast U.S. this evening, with lower pressures at the surface. Gulf moisture flowing into the vicinity of these features will lead to the potential for heavy rainfall over parts of northern Florida through Monday, which has already received an abundant amount of rain in recent days. Slight Risks of excessive rainfall/flash flooding are in place for portions of the Florida panhandle today and Monday. Showers and thunderstorms are also possible for the Central Gulf Coast and into the Carolinas. Above average temperatures are forecast to be widespread for much of the country, with potential for record daily highs to be set across the Northeast and southern High Plains on Monday. High temperatures are forecast to reach the triple digits across western Texas, with widespread 90s across the Northeast. Excessive Heat Warnings and Watches are in place for the Southwest as well. Meanwhile, below average temperatures are expected in the Northern Plains behind a cold front on Tuesday. As low humidities combine with gusty winds in the West, portions of the Great Basin and the Central/Northern Rockies are under Red Flag Warnings. No notable precipitation is expected for the West, despite it being typical monsoon season. Snell/Tate Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php