Short range weather overview a.m. Thursday 17 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.
See https://rvweather.com/blog/weatherforecasts/weatherforecastanimations/ for latest animations of expected weather conditions.


The heat wave being felt across the western U.S. continues and expands into the Central U.S. Severe weather and flash flooding are possible over the Midwest today and Friday. 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.

— 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 Saturday. Many locations will reach 105 to 116 deg F. Hotter locations will likely exceed 120 deg F Thursday and Friday. I-5, I-8, I-10, I-15, I-40, I-70, I-80 impacted.

— Southern WY: Wind gusts 30-40 mph this afternoon. No advisories issued. I-80 impacted.

— Much of IA, southern MN, southeast WI, northwest IL: Scattered severe thunderstorms and flash flooding Thursday afternoon and evening. Large to very large hail, significant severe winds, and a few tornadoes all possible. I-35, I-80, I-90 potentially impacted.

— Central IL, IN, OH, western PA: Scattered severe thunderstorms and flash flooding Friday afternoon and evening. I-69, I-70, I-71, I-77, I-79, I-80, I-90 potentially impacted.

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.

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