Prognostic Meteorological Discussion
Issued by NWS

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FXUS01 KWBC 221955
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
355 PM EDT FRI JUL 22 2016

VALID 00Z SAT JUL 23 2016 - 00Z MON JUL 25 2016

...DANGEROUSLY HOT TEMPERATURES EXPECTED ACROSS PORTIONS OF THE
CENTRAL U.S...

...SEVERE THUNDERSTORMS POSSIBLE ACROSS PORTIONS OF THE NORTHERN
PLAINS, UPPER MIDWEST, AND NORTHEAST...

...HEAVY RAIN POSSIBLE TODAY ACROSS PORTIONS OF THE NORTHERN
PLAINS...

SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE ACROSS THE NORTHERN
PLAINS, THE UPPER AND MIDDLE MISSISSIPPI VALLEY AND THE GREAT
LAKES REGION THIS WEEKEND AS A LOW PRESSURE SYSTEM ADVANCES
THROUGH THE NORTHERN TIER STATES. A SERIES OF EMBEDDED
DISTURBANCES IN THE FLOW ALOFT, COMBINED WITH STRONG DAYTIME
HEATING AND AVAILABLE MOISTURE EAST OF THE FRONT RANGE, WILL HELP
GENERATE AND MAINTAIN STRONG TO SEVERE CONVECTION. THE STORM
PREDICTION CENTER HAS A SLIGHT RISK FOR EASTERN MONTANA AND THE
DAKOTAS, WITH AN ENHANCED AREA PRIMARILY ALONG AND SOUTH OF I-94
IN NORTH DAKOTA. PLEASE REFER TO PRODUCTS ISSUED BY THE STORM
PREDICTION CENTER FOR FURTHER DETAILS ON THE SEVERE WEATHER
THREAT. PERIODS OF HEAVY RAINFALL MAY RESULT IN FLASH FLOODING
ACROSS THIS REGION THROUGH SATURDAY.

SHOWERS AND THUNDERSTORMS ARE ALSO FORECAST FROM THE GREAT LAKES
REGION TO THE NORTHEAST THIS WEEKEND AS A COLD FRONT MOVES
SOUTHEAST TOWARD THE ATLANTIC OCEAN. THE FRONT WILL PUSH OFFSHORE
ON SUNDAY AND SURFACE HIGH PRESSURE WILL EXPAND INTO THE
NORTHEAST.

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ARE POSSIBLE
ACROSS THE FOUR CORNERS REGION INTO THE WEEKEND, PRIMARILY ACROSS
THE HIGHER TERRAIN. SCATTERED THUNDERSTORMS ARE ALSO FORECAST FOR
THE AFTERNOON AND EVENING HOURS ACROSS THE SOUTHEAST THIS WEEKEND.

AN EXTENSIVE AREA OF HIGH PRESSURE AT THE MID AND UPPER-LEVELS OF
THE ATMOSPHERE WILL BE THE DOMINANT FEATURE OVER THE SOUTHERN AND
CENTRAL U.S. NUMEROUS LOCATIONS, ESPECIALLY ACROSS THE MIDWEST AND
CENTRAL/NORTHERN PLAINS, WILL CONTINUE TO HAVE TEMPERATURES WELL
OVER 100 DEGREES. HIGH HUMIDITY COMBINED WITH THE HIGH
TEMPERATURES WILL RESULT IN OPPRESSIVE HEAT. WIDESPREAD HEAT
ADVISORIES AND WARNINGS ARE IN EFFECT ACROSS THE GULF STATES,
PLAINS, UPPER MIDWEST, MISSISSIPPI AND OHIO VALLEYS.


CAMPBELL


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





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