394
FXUS01 KWBC 240728
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
227 AM EST FRI JAN 24 2025
VALID 12Z FRI JAN 24 2025 - 12Z SUN JAN 26 2025
...ELEVATED FIRE WEATHER CONDITIONS CONTINUE IN SOUTHERN
CALIFORNIA, PRECIPITATION EXPECTED TO BRING RELIEF SATURDAY INTO
SUNDAY...
...BELOW AVERAGE TEMPERATURES CONTINUE IN THE SOUTH AND EAST,
GRADUAL WARM UP ANTICIPATED THIS WEEKEND...
A DEEP UPPER LEVEL LOW WILL DROP INTO THE WESTERN U.S. TODAY,
PUSHING A SURFACE FRONTAL SYSTEM SOUTH ACROSS THE REGION. THE
SYSTEM IS FORECAST TO MOVE ACROSS THE NORTHWEST AND
NORTHERN/CENTRAL ROCKIES TODAY AND MOVE INTO THE FOUR CORNERS
REGION AND SOUTHWEST THIS WEEKEND. WIDESPREAD LIGHT TO MODERATE
SNOW IS EXPECTED ACROSS THE INTERMOUNTAIN WEST, AND HEAVY SNOW MAY
BE POSSIBLE IN SOME OF THE HIGHER ELEVATIONS. THE UPPER LOW WILL
BECOME NEARLY STATIONARY OVER THE SOUTHWEST THIS WEEKEND, CAUSING
A LOW PRESSURE SYSTEM TO SPIN UP ALONG THE CALIFORNIA COAST THAT
WILL LIKELY BRING BENEFICIAL PRECIPITATION TO SOUTHERN CALIFORNIA,
WHICH HAS BEEN SUFFERING FROM ELEVATED WILDFIRE CONDITIONS OVER
THE PAST FEW WEEKS. DRY CONDITIONS AND ELEVATED WILDFIRE
CONDITIONS WILL PERSIST BEFORE PRECIPITATION ARRIVES ON SATURDAY.
AS LOW PRESSURE STRENGTHENS, THE PRESSURE GRADIENT ACROSS THE WEST
WILL TIGHTEN, RESULTING IN ELEVATED WINDS ACROSS MUCH OF THE WEST
ON SATURDAY AND SUNDAY.
ELSEWHERE, LOW PRESSURE TRACKING ACROSS THE NORTHERN TIER WILL
PUSH A COUPLE OF RELATIVELY WEAKER COLD FRONTS SOUTH ACROSS THE
CENTRAL U.S. WHILE HIGH PRESSURE BUILDS OVER THE EAST. THE FIRST
FRONT WILL DROP SOUTH ACROSS THE NORTHERN AND CENTRAL PLAINS TODAY
CAUSING LOW PRESSURE AND HIGH WINDS TO DEVELOP IN THE LEE OF THE
ROCKIES. THE LOW WILL PUSH INTO THE SOUTHERN PLAINS WITH THE COLD
FRONT ON SATURDAY AND APPROACH THE GULF COAST ON SUNDAY. MOISTURE
STREAMING AHEAD OF THE FRONT WILL SUPPORT SHOWERS AND
THUNDERSTORMS IN THE SOUTHERN PLAINS AND LOWER MISSISSIPPI VALLEY
SATURDAY NIGHT INTO SUNDAY. A SECOND COLD FRONT WILL DROP INTO THE
NORTHERN PLAINS AND UPPER MIDWEST ON SATURDAY, BUT DISSIPATE OVER
THE CENTRAL PLAINS ON SUNDAY. THESE TWO SYSTEMS WILL LIKELY
PRODUCE SOME SNOW SHOWERS ACROSS THE NORTHERN TIER OF THE NATION
THROUGH THIS WEEKEND, AND LOCALLY HEAVY LAKE EFFECT SNOW WILL BE
POSSIBLE DOWNWIND OF THE GREAT LAKES.
TEMPERATURES WILL REMAIN BELOW AVERAGE TODAY AND SATURDAY FOR MOST
OF THE SOUTH AND EAST. SOME OF THE MOST NOTABLE DEPARTURES FROM
AVERAGE WILL BE ALONG THE GULF COAST TO THE SOUTHEAST WHERE LOWS
ARE FORECAST TO BE IN THE 20S AND 30S AND HIGHS MAY ONLY REACH THE
40S AND LOWER 50S. DAYTIME HIGHS WILL LIKELY HELP TO MELT SNOW
COVER FROM THE RECENT HISTORIC WINTER STORM, BUT LIQUID WATER FROM
MELTED SNOW MAY REFREEZE OVERNIGHT WHEN TEMPERATURES DROP BELOW
FREEZING. TEMPERATURES WILL GRADUALLY MODERATE THROUGH THE
WEEKEND, TRENDING CLOSER TO NORMAL BY EARLY NEXT WEEK. BELOW
AVERAGE TEMPERATURES ARE ALSO EXPECTED IN THE WEST UNDERNEATH THE
UPPER LOW, AND HIGHS COULD BE 15-25 DEGREES BELOW AVERAGE IN THE
ROCKIES OVER THE WEEKEND.
DOLAN
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