138
FXUS01 KWBC 190800
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 AM EDT THU OCT 19 2023
VALID 12Z THU OCT 19 2023 - 12Z SAT OCT 21 2023
...INCREASINGLY UNSETTLED WEATHER IS IN STORE FOR THE EASTERN U.S.
OVER THE NEXT FEW DAYS..
...HIGH TEMPERATURES WILL CHALLENGE DAILY RECORDS ACROSS NUMEROUS
LOCATION OVER THE WESTERN U.S. TODAY, SPREADING INTO TEXAS BY
FRIDAY AND INTO SATURDAY...
THE COOL AND RELATIVELY QUIET WEATHER PATTERN OVER THE EASTERN
HALF OF THE COUNTRY IS FORECAST TO BECOME INCREASINGLY UNSETTLED
AS THE DRY AND VERY WARM WEATHER OVER THE WESTERN HALF OF THE
COUNTRY CONTINUES. AN ALBERTA CLIPPER CURRENTLY CENTERED OVER THE
UPPER MIDWEST WILL CONTINUE ITS EASTWARD JOURNEY ACROSS THE GREAT
LAKES. RAINY CONDITIONS ASSOCIATED WITH THIS SYSTEM IS FORECAST
FOR ALL OF THE GREAT LAKES THROUGH FRIDAY. MEANWHILE, AN
UPPER-LEVEL TROUGH INTERACTING WITH THE CLIPPER IS FORECAST TO DIG
FARTHER SOUTHEAST TOWARD THE SOUTHERN ATLANTIC STATES AND THEN
INTERACT WITH ANOTHER LOW PRESSURE WAVE JUST OFF THE COAST OF THE
SOUTHEASTERN U.S. THIS COMPLEX MUTUAL INTERACTION IN CONJUNCTION
WITH YET ANOTHER CLIPPER SYSTEM FORECAST TO DIVE ACROSS CENTRAL
CANADA TOWARD THE GREAT LAKES WILL RESULT IN A PERIOD OF
INCREASINGLY UNSETTLED WEATHER TO EXPAND ACROSS THE EASTERN U.S.,
ESPECIALLY OVER THE NORTHEAST, AS WE HEAD CLOSER TO AND INTO THE
WEEKEND. PERIODS OF RAIN ASSOCIATED WITH THE FIRST CLIPPER WILL
SPREAD GRADUALLY ACROSS THE INTERIOR PORTION OF THE EASTERN U.S.
THROUGH FRIDAY. BY FRIDAY NIGHT INTO SATURDAY MORNING, ATLANTIC
MOISTURE ASSOCIATED WITH THE COASTAL SYSTEM IS FORECAST TO MOVE UP
THE EAST COAST AND OVERSPREAD NEW ENGLAND WITH LOCALLY ENHANCED
RAINFALL AND POSSIBLY THUNDERSTORMS AS WELL AS STRENGTHENING AND
GUSTY WINDS. IN THE MEANTIME, SHOWERS AND SOME THUNDERSTORMS
ASSOCIATED WITH A COLD FRONT TRAILING FROM THE ALBERTA CLIPPER
WILL SPREAD FROM THE MID-MISSISSIPPI VALLEY THIS MORNING AND
EXPAND ACROSS THE SOUTHEAST ON FRIDAY.
MEANWHILE, AN ANOMALOUSLY STRONG UPPER-LEVEL RIDGE IS FORECAST TO
DOMINATE MUCH OF THE WESTERN U.S. INTO THE MID-SECTION OF THE
COUNTRY, PROVIDING ANOMALOUSLY WARM TEMPERATURES AND DRY
CONDITIONS FOR THESE AREAS THROUGH AT THESE THE NEXT FEW DAYS.
HIGH TEMPERATURES TODAY WILL CHALLENGE DAILY RECORDS ACROSS
NUMEROUS LOCATION OVER THE WESTERN U.S. THE RECORD WARMTH IS
FORECAST TO SPREAD INTO TEXAS BY FRIDAY AND INTO SATURDAY.
FARTHER NORTH, THE NEXT CLIPPER DIVING ACROSS CENTRAL CANADA WILL
SPREAD CHILLY RAIN AND GUSTY WINDS INTO THE UPPER MIDWEST BY
FRIDAY AND INTO SATURDAY.
KONG
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page