Short range weather overview a.m. Friday 18 June 2021

See https://rvweather.com/warnings-watches-and-advisories/ for latest National Weather Service Warnings and Watches, including Tornado, Severe Thunderstorm and Hurricane information.
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The heat wave continues across the parts of the West and Central Plains. Scattered severe storms will be probable Friday across IL, IN, and OH; flash flooding possible across that same region. Potential tropical cyclone 3 will bring heavy rains and fresh-water flooding to the Northern Gulf Coast.

A tropical depression will almost certainly form over the western Gulf of Mexico late tonight or early Friday and move towards the central Gulf Coast. Heavy rains will likely reach the LA and MS coastlines by Friday evening and continue on Saturday. Please stay tuned in to local TV and NWS forecasts and follow any directions given by local emergency managers.

— Virtually all of southern and central CA; the interior valleys of northern CA; southern NV; eastern and southern AZ; southern and eastern UT: Excessive Heat Warnings through Sunday. Many locations will reach 105 to 116 deg F; typically hotter locations will likely exceed 120 deg F today. I-5, I-8, I-10, I-15, I-40, I-70, I-80 impacted.

— Southeast LA, southern MS, coastal AL, western FL Panhandle: Tropical Storm Warnings are in effect. Potential Tropical Cyclone 3 will make landfall along the central LA coastline tonight, bringing heavy rains and fresh-water flooding to southeast LA, southern MS, AL, and the FL Panhandle. Some parts of the coast may see 4-6 inches of rain. Winds along the MS/AL Coasts could gust 40-50 mph tonight and Saturday. Expect a 2-3 foot storm surge along the coast. Primary threats though will be heavy rains and flash flooding.

— Northern MO, southern IA, central IL, IN, OH, western PA: Scattered severe thunderstorms and flash flooding Friday afternoon and evening. Severe gusts, possibly significant, will be capable of swaths of wind damage with the more intense storms. A. couple of tornadoes are possible in addition to large hail. I-59, I-65, I-69, I-70, I-71, I-77, I-79, I-80, I-90 potentially impacted.

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