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Short Range Public Discussion
 
(Caution: Version displayed is not the latest version. - Issued 2027Z Jul 03, 2020)
 
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Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 427 PM EDT Fri Jul 03 2020 Valid 00Z Sat Jul 04 2020 - 00Z Mon Jul 06 2020 ...Severe thunderstorms possible over the northern Plains during the Fourth of July weekend... ...Scattered thunderstorms expected to linger over the eastern Gulf Coast to the lower Mississippi Valley... ...Summer heat continues across the northern Tier states; cool and damp over New England but dry in the West for the Fourth of July weekend... A somewhat sluggish weather pattern across the U.S. will tend to keep similar weather conditions at any particular location during the Fourth of July weekend. Starting out over the Pacific Northwest, cooler than normal temperatures will stay entrenched as troughing maintains an onshore flow. In contrast, a high pressure system will sustain high temperatures into the 90s from the upper Midwest across the Great Lakes and into the Mid-Atlantic, especially for the coastal plains and urban areas. Meanwhile, a back-door cold front will bring in cool temperatures into New England with highs only in the 70s near the coast. Scattered showers and thunderstorms are expected to taper off on Saturday but some thunderstorms are forecast to develop over northern New England on Sunday as another cold front arrives. Meanwhile, Florida may see another day with near-record heat in the mid-90s. A good chance of scattered showers and thunderstorms is expected near and along a stationary frontal boundary from the Mid-South to the eastern half of the Gulf Coast region, with some potential for flash flooding due to some localized heavy rain totals. In the north-central U.S., a front will promote some rain and thunderstorms (some severe) as well as some flash flooding in areas that see heavier rain. On the southern part of the western upper-level trough, southwesterly flow ahead of a front will lead to gusty winds and low humidity in the Central Great Basin where fire danger is elevated. A fair amount of the Saharan dust continues to linger across the Gulf Coast region into Florida. The sluggish weather pattern will make it difficult for the dust to disperse during the Fourth of July weekend. The primary impacts of the Saharan dust are hazy skies during the day, locally reduced visibility, degraded air quality, and the potential for vividly colorful sunrises and sunsets. Kong Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php