485
FXUS01 KWBC 180813
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 AM EDT WED OCT 18 2023
VALID 12Z WED OCT 18 2023 - 12Z FRI OCT 20 2023
...AN ALBERTA CLIPPER WILL SPREAD GUSTY WINDS FARTHER SOUTH INTO
THE CENTRAL PLAINS TODAY AS RAIN MOVES ACROSS THE NORTHERN PLAINS
AND UPPER MIDWEST...
...RAIN IS EXPECTED FOR THE GREAT LAKES ON THURSDAY INTO FRIDAY AS
SCATTERED THUNDERSTORMS DEVELOP AND EXPAND ACROSS THE MID-SOUTH
INTO THE SOUTHEAST...
...A WARMING TREND IN THE WESTERN U.S. WILL LEAD TO HIGH
TEMPERATURES CHALLENGING DAILY RECORDS BY THURSDAY...
AN ALBERTA CLIPPER TRACKING EAST-SOUTHEAST INTO THE NORTHERN
PLAINS THIS MORNING IS BRINGING SCATTERED AREAS OF RAIN ACROSS THE
NORTHERN PLAINS INTO THE UPPER MIDWEST. VERY GUSTY DRY WINDS
BEHIND THE SYSTEM HAVE BEEN OVERSPREADING MUCH OF THE NORTHERN
HIGH PLAINS EARLY THIS MORNING. THESE GUSTY WINDS ARE EXPECTED TO
SHIFT SOUTHEASTWARD INTO THE NORTH-CENTRAL PLAINS TODAY BEFORE
SUBSIDING TONIGHT. THE CENTER OF THE CLIPPER WILL CONTINUE ITS
EASTWARD JOURNEY THROUGH THE UPPER GREAT LAKES, BRINGING RAINY
WEATHER FOR MUCH OF THE GREAT LAKES THROUGH FRIDAY. MEANWHILE,
SHOWERS AND THUNDERSTORMS ARE FORECAST TO DEVELOP FARTHER SOUTH
AHEAD OF THE TRAILING COLD FRONT OVER THE OHIO VALLEY AND DOWN
INTO THE MID-MISSISSIPPI VALLEY AS WELL AS THE INTERIOR DEEP SOUTH
LATER ON THURSDAY INTO FRIDAY. BY FRIDAY MORNING, A LOW PRESSURE
SYSTEM MAY BEGIN TO FORM NEAR THE NORTH CAROLINA COAST WHERE THE
CHANCE OF THUNDERSTORMS WITH HEAVY RAIN WILL INCREASE.
THE COOL WEATHER PATTERN ACROSS THE EASTERN U.S. WILL SLOWLY BREAK
DOWN OVER THE NEXT COUPLE OF DAYS AS A HIGH PRESSURE RIDGE SLIDES
OFF THE EAST COAST. THE SOUTHEAST, AND ESPECIALLY FLORIDA, WILL
HOLD ON TO THE COOL TEMPERATURES INTO FRIDAY BUT INCREASING
SOUTHERLY FLOW ACROSS THE INTERIOR EASTERN U.S. WILL HELP RAISE
TEMPERATURES TO NEAR NORMAL LEVELS THERE BY THURSDAY. THE
NORTHEAST WILL STILL BE STUCK IN PLENTY OF CLOUDS TODAY BEFORE THE
COOL WEATHER PATTERN BREAKS DOWN ON THURSDAY. IN CONTRAST, THE
WARM AND DRY WEATHER PATTERN OVER MUCH OF THE WESTERN U.S. IS
FORECAST TO GET WARMER OVER THE NEXT COUPLE OF DAYS, WITH HIGH
TEMPERATURES NEARING OR BREAKING DAILY RECORDS AT QUITE A NUMBER
OF LOCATIONS FROM CALIFORNIA TO ARIZONA AND FARTHER NORTH ACROSS
THE INTERIOR PACIFIC NORTHWEST AND IDAHO. MORE RECORD HIGHS COULD
SPREAD EAST INTO COLORODA AND SOUTHEASTERN TEXAS ON FRIDAY.
MEANWHILE, THE ABOVE NORMAL TEMPERATURES COULD TOP THE CENTURY
MARK FOR THE NEXT FEW DAYS OVER THE DESERT SOUTHWEST. THE WARM
WEATHER PATTERN IN THE WESTERN U.S. WILL ALSO HELP KEEPING THE
HEAVY RAIN TO STAY JUST OFF TO THE NORTH AND NORTHWEST OF THE
PACIFIC NORTHWEST ACROSS VANCOUVER ISLAND.
KONG
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