Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 521 AM EDT Wed Jun 03 2020 Valid 12Z Wed Jun 03 2020 - 12Z Fri Jun 05 2020 ...There is an Enhanced Risk of severe thunderstorms over parts of the northern Mid-Atlantic... ...Excessive Heat Warnings are in effect for parts of the Southwest today and Thursday... ...Florida will begin to see locally heavy rain as tropical moisture increases over the state... A front extending from the Lower Great Lakes to the Middle Mississippi Valley/Southern Plains will stall through Thursday as the eastern end of the front moves into the mid Atlantic. Moisture will pool along the boundary, producing showers and thunderstorms from parts of the Northeast to the Middle Mississippi Valley/Southern Plains this afternoon. The Storm Prediction Center is forecasting an Enhanced Risk of severe thunderstorms over parts of the northern mid Atlantic. The greatest threat will be damaging thunderstorm winds. Other severe storms are possible farther west into parts of the Ohio Valley and central Plains states, with the main threats being damaging thunderstorm winds and large hail. Scattered severe thunderstorms are also possible in the Plains on Thursday. In Florida a very humid air mass will give rise to slow moving thunderstorms producing heavy rainfall, especially along the west coast of the state where isolated flash flooding is possible today. Out West, temperatures will range from 10 to 20 degrees above average over the Great Basin/Southwest. Excessive Heat Warnings are in effect for the Southwest, and Heat Advisories are in effect for parts of Central California. Highs in the deserts and valleys are forecast to approach 105 to 110 degrees. Ziegenfelder/Burke Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php