Prognostic Meteorological Discussion
Issued by NWS

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000 FXUS01 KWBC 280712 PMDSPD SHORT RANGE FORECAST DISCUSSION NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 311 AM EDT TUE JUN 28 2016 VALID 12Z TUE JUN 28 2016 - 12Z THU JUN 30 2016 ...SEVERE THUNDERSTORMS AND HEAVY RAIN POSSIBLE ACROSS PORTIONS OF THE NORTHEAST AND THE CENTRAL/NORTHERN PLAINS... ...ISOLATED THUNDERSTORMS POSSIBLE FOR PARTS OF THE WEST, WITH TEMPERATURES REMAINING ABOVE AVERAGE... TWO COLD FRONTS WILL MOVE ACROSS THE EASTERN THIRD OF THE U.S. TODAY, BRINGING AREAS OF SHOWERS AND THUNDERSTORMS FROM THE NORTHEAST TO THE GULF COAST. SOME THUNDERSTORMS ACROSS THE NORTHEASTERN U.S. MAY BE SEVERE, AND THE STORM PREDICTION CENTER HAS OUTLINED PORTIONS OF THIS REGION FOR A SLIGHT RISK OF SEVERE THUNDERSTORMS. ADDITIONALLY, HEAVY RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE, PARTICULARLY ACROSS INTERIOR NEW ENGLAND. LOCALLY HEAVY RAINFALL WILL ALSO BE POSSIBLE ACROSS THE SOUTHEAST AND GULF COAST STATES, ALTHOUGH HEAVY RAIN SHOULD BE LESS WIDESPREAD THAN IN THE NORTHEAST. THE COLD FRONT WILL BEGIN TO MOVE OFFSHORE TONIGHT, BRINGING AN END TO RAIN AND STORMS ACROSS THE MID-ATLANTIC, BUT A DEVELOPING WAVE OF LOW PRESSURE ALONG THE FRONT WILL CAUSE SHOWERS AND THUNDERSTORMS TO PERSIST ACROSS EASTERN NEW ENGLAND INTO WEDNESDAY. SCATTERED THUNDERSTORMS WILL ALSO CONTINUE ON WEDNESDAY ACROSS THE COASTAL SOUTHEAST AND THE GULF COAST. THE SAME FRONTAL BOUNDARY EXTENDS WEST INTO THE PLAINS AS A STATIONARY FRONT, AND THIS WILL PERSIST THROUGH THE NEXT COUPLE DAYS ACROSS THIS AREA. SCATTERED SHOWERS AND THUNDERSTORMS ARE FORECAST TODAY ACROSS THE CENTRAL AND NORTHERN HIGH PLAINS, AND SOME OF THESE THUNDERSTORMS MAY BE SEVERE. THE STORM PREDICTION CENTER HAS OUTLINED PORTIONS OF THIS AREA FOR A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT. HEAVY RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE ALSO POSSIBLE, WITH LOCALLY HIGHER AMOUNTS. THE STATIONARY FRONT WILL REMAIN ACROSS THE SAME AREAS ON WEDNESDAY, SO SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO PERSIST. BY THURSDAY MORNING, ANOTHER COLD FRONT WILL DIVE SOUTHWARD INTO THE NORTHERN PLAINS AND UPPER MIDWEST FROM CANADA, BRINGING INCREASED CHANCES OF SHOWERS AND THUNDERSTORMS TO THE UPPER MIDWEST AND UPPER GREAT LAKES. ACROSS THE WEST, ISOLATED AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS ARE POSSIBLE, BUT MANY AREAS WILL REMAIN DRY AND HOT, WITH AFTERNOON HIGH TEMPERATURES EXPECTED TO BE 10 TO 15 DEGREES ABOVE AVERAGE TODAY AND WEDNESDAY. RYAN GRAPHICS AVAILABLE AT WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_WBG.PHP $$

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