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Short Range Public Discussion
(Caution: Version displayed is not the latest version. - Issued 2000Z Jul 16, 2018)
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Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 400 PM EDT Mon Jul 16 2018 Valid 00Z Tue Jul 17 2018 - 00Z Thu Jul 19 2018 ...Severe thunderstorms and flash flooding possible across parts of the Northeast, the Deep South, and the Plains... ...Monsoonal moisture to continue across the Southwest with heavy to excessive rainfall possible ...Well above normal temperatures to continue through Tuesday across parts of the Western US... Showers and thunderstorms will continue along and ahead of a frontal boundary as it shifts eastward from the Ohio Valley into the Eastern U.S. by tomorrow. Some of these storms may be capable of producing severe weather and/or heavy to excessive rainfall, particularly across portions of the northeast and the Deep South. SPC has highlighted portions of the northeast within a marginal to slight risk for severe thunderstorms, while WPC has much of the area along the front from the Northeast to the Deep South within a marginal to slight risk for excessive rainfall. Out west, moisture associated with upper level energy moving through the northern Rockies this evening into the northern Plains tomorrow will interact with a surface boundary draped across the high Plains to produce showers and thunderstorms from the northern High Plains to the central Plains. Again, both SPC and WPC have marginal to slight risks for this region for severe weather and flash flooding, respectively, this evening as well as on Tuesday. In the Southwest, expect monsoonal moisture to continue through the short range period resulting in mainly diurnally driven showers and storms, with heavy to excessive rainfall possible. See the graphics and discussions from these two centers for additional details on the severe weather and heavy rainfall risks across the country. Temperature wise, portions of the western U.S. will have to endure another day of swealtering heat, with afternoon highs approaching or exceeding 100 degrees possible. This is as much as 10 to 15 degrees above normal with many locations from northern California to central Washington under heat advisories or excessive heat warnings. Conditions are also dry out west which increases fire weather concerns. A few red flag warnings are also in effect across northeast Nevada. Santorelli Graphics available at