Prognostic Meteorological Discussion
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FXUS01 KWBC 230635
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
235 AM EDT TUE AUG 23 2016

VALID 12Z TUE AUG 23 2016 - 12Z THU AUG 25 2016

...SEVERE THUNDERSTORMS AND HEAVY RAIN POSSIBLE TODAY ACROSS
PORTIONS OF THE CENTRAL PLAINS AND MIDWEST...

...STATIONARY FRONT TO KEEP SCATTERED SHOWERS AND STORMS POSSIBLE
ACROSS THE SOUTHERN STATES...

...TEMPERATURES WILL STEADILY WARM ACROSS THE PACIFIC NORTHWEST BY
MIDWEEK...

A COLD FRONT WILL MOVE INTO THE CENTRAL U.S. TODAY. SHOWERS AND
THUNDERSTORMS ARE EXPECTED AHEAD OF THE FRONT TODAY AND TONIGHT.
SHOWERS AND STORMS ARE EXPECTED TO BE MOST NUMEROUS THIS AFTERNOON
AND EVENING ACROSS THE CENTRAL PLAINS INTO PORTIONS OF THE
MIDWEST, WHERE SEVERE THUNDERSTORMS ALONG WITH HEAVY RAIN ARE
POSSIBLE. PLEASE REFER TO PRODUCTS ISSUED BY THE STORM PREDICTION
CENTER FOR FURTHER DETAILS ON THE SEVERE WEATHER THREAT. ON
WEDNESDAY THE FRONT WILL CONTINUE TO MOVE EAST, WITH SHOWERS AND
THUNDERSTORMS EXPECTED FROM THE GREAT LAKES TO THE MID-MISSISSIPPI
VALLEY AND ONCE AGAIN ACROSS PORTIONS OF THE CENTRAL PLAINS. THE
TRAILING END OF THIS FRONTAL BOUNDARY WILL BECOME NEARLY
STATIONARY ACROSS THE CENTRAL ROCKIES TODAY AND WILL LINGER
THROUGH THURSDAY. THIS FRONT, ALONG WITH MONSOONAL MOISTURE
STREAMING INTO THE SOUTHWESTERN U.S., WILL FOCUS AREAS OF SHOWERS
AND THUNDERSTORMS ACROSS THE FOUR CORNERS REGION AND THE CENTRAL
ROCKIES THROUGH THURSDAY.

HIGH PRESSURE WILL REMAIN IN PLACE TODAY ACROSS THE EASTERN U.S.,
KEEPING CONDITIONS DRY FROM THE OHIO VALLEY TO THE MID-ATLANTIC
AND NORTHEAST WITH TEMPERATURES NEAR SEASONAL AVERAGE VALUES.
FARTHER SOUTH, A WEAKENING STATIONARY FRONTAL BOUNDARY WILL LINGER
ACROSS THE SOUTHEAST TODAY BEFORE WASHING OUT ON WEDNESDAY. THIS
FRONT WILL KEEP SCATTERED SHOWERS AND THUNDERSTORMS A POSSIBILITY
THROUGH THE NEXT COUPLE DAYS.

THE PACIFIC NORTHWEST WILL SEE A STEADY WARMING TREND THROUGH THE
WEEK AS A RIDGE OF HIGH PRESSURE ALOFT PARTIALLY BUILDS BACK INTO
THE REGION. TEMPERATURES TODAY ARE EXPECTED TO BE ABOUT 5 DEGREES
ABOVE AVERAGE. BY WEDNESDAY AND THURSDAY, HOWEVER, TEMPERATURES
WILL RISE TO 10 TO 15 DEGREES ABOVE AVERAGE.

RYAN


GRAPHICS AVAILABLE AT WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_WBG.PHP
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