732
FXUS01 KWBC 162001
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 PM EDT WED OCT 16 2024
VALID 00Z THU OCT 17 2024 - 00Z SAT OCT 19 2024
...POWERFUL PACIFIC STORM TO BRING MUCH COLDER TEMPERATURES AND
WIDESPREAD MOUNTAIN SNOW TO MUCH OF THE INTERMOUNTAIN WEST THROUGH
THE END OF THE WEEK...
...ABOVE NORMAL TEMPERATURES CONTINUE TO BUILD ACROSS THE CENTRAL
AND NORTHERN HIGH PLAINS THURSDAY INTO FRIDAY, RESULTING IN MORE
FIRE WEATHER CONCERNS...
...FROST AND FREEZE CONDITIONS EXPAND EASTWARD INTO PARTS OF THE
OHIO VALLEY, SOUTHEAST, MID-ATLANTIC, AND NORTHEAST TONIGHT WITH
BELOW NORMAL TEMPERATURES LINGERING INTO FRIDAY...
AFTER A PERSISTENT RIDGE OF HIGH PRESSURE FOSTERED UNSEASONABLE
FALL WARMTH ACROSS MUCH OF THE WEST OVER THE LAST SEVERAL WEEKS, A
POWERFUL PACIFIC STORM IS NOW BRINGING BIG CHANGES TO THE REGION
BEHIND A STRONG COLD FRONT. THE SIGNIFICANT PATTERN CHANGE IS
HIGHLIGHTED BY MUCH COLDER TEMPERATURES WITH HIGHS 15 TO 30
DEGREES BELOW SEASONAL NORMALS ON THURSDAY AND FRIDAY. IN ADDITION
TO THE COLDER TEMPERATURES, THE STORM WILL ALSO PRODUCE WIDESPREAD
MOUNTAIN SNOW WHICH WILL GRIP THE REGION THROUGH THE END OF THE
WEEK. MOUNTAIN SNOW IS EXPECTED TO RAMP UP LATER THURSDAY INTO
FRIDAY WITH THE HIGHEST PEAKS ACROSS THE NORTHERN AND CENTRAL
ROCKIES FAVORED FOR SIGNIFICANT ACCUMULATIONS. COMBINED WITH THE
POTENTIAL FOR GUSTY WINDS, TRAVEL THROUGH THE HIGH COUNTRY COULD
BECOME HAZARDOUS. BEFORE VENTURING OUT, BE SURE TO CHECK THE
LATEST FORECAST INFORMATION AND MAKE SURE YOU ARE PREPARED FOR
WINTER DRIVING CONDITIONS.
FARTHER EAST ACROSS THE CENTRAL AND NORTHERN HIGH PLAINS, GUSTY
RETURN FLOW ON THE BACKSIDE OF A DEPARTING BUBBLE OF HIGH PRESSURE
WILL USHER IN A SURGE OF UNSEASONABLE WARMTH THROUGH THE END OF
THE WEEK. HIGH TEMPERATURES WILL SOAR WELL INTO THE 70S AND 80S,
WHICH TRANSLATES TO 15 TO 25 DEGREES ABOVE AVERAGE FOR THIS TIME
OF YEAR. THE UNSEASONABLE WARMTH IN CONJUNCTION WITH STRONG WINDS,
LOW RELATIVE HUMIDITY, AND DRY FUELS WILL CONTINUE TO CREATE A
FAVORABLE ENVIRONMENT FOR HEIGHTENED FIRE WEATHER CONCERNS. ON
THURSDAY, THE STORM PREDICTION CENTER ISSUED A CRITICAL FIRE
WEATHER AREA FOR MUCH OF EASTERN NEBRASKA AND PARTS OF SOUTHWEST
MINNESOTA, SOUTHEAST SOUTH DAKOTA, EASTERN IOWA, AND NORTHERN
KANSAS... WITH THE POTENTIAL FOR THE FIRE WEATHER RISK TO LINGER
INTO FRIDAY. WIDESPREAD RED FLAG WARNINGS ARE IN EFFECT TO
HIGHLIGHT THIS ELEVATED FIRE WEATHER THREAT ACROSS THE REGION.
THE STRONG HIGH PRESSURE THAT IS NOW DEPARTING THE CENTRAL U.S.
WILL SLOWLY SETTLE INTO THE EASTERN U.S. OVER THE NEXT COUPLE OF
DAYS, ALLOWING FOR WELL BELOW NORMAL TEMPERATURES TO PERSIST
THROUGH THE END OF THE WORK WEEK. UNSEASONABLY COLD NIGHTTIME LOWS
TONIGHT IN THE 30S AND 40S WILL PROMOTE FROST AND FREEZE
CONDITIONS ACROSS PARTS OF THE OHIO VALLEY, SOUTHEAST,
MID-ATLANTIC AND NORTHEAST. WIDESPREAD FREEZE WARNINGS AND FROST
ADVISORIES ARE IN EFFECT. THOSE WITH AGRICULTURAL INTERESTS OR
SENSITIVE VEGETATION SHOULD BE PREPARED TO TAKE ACTION.
TEMPERATURES BEGIN TO MODERATE SOME DURING THE DAY ON THURSDAY AND
ESPECIALLY ON FRIDAY, BUT WILL STILL REMAIN BELOW NORMAL FOR THE
MIDDLE OF OCTOBER.
MILLER
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