410
FXUS01 KWBC 160746
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
246 AM EST FRI FEB 16 2024
VALID 12Z FRI FEB 16 2024 - 12Z SUN FEB 18 2024
...SWATH OF ACCUMULATING SNOW WILL SPREAD FROM MIDWEST TODAY TO
MID ATLANTIC TONIGHT...
...HEAVY RAIN AND MOUNTAIN SNOW TO IMPACT CALIFORNIA THIS
WEEKEND...
...CHILLY AIR SWEEPS ACROSS MUCH OF THE CENTRAL AND SOUTHERN PARTS
OF THE COUNTRY THIS WEEKEND...
A QUICK MOVING LOW PRESSURE SYSTEM WILL SWEEP ACROSS THE SOUTHEAST
AND TENNESSEE VALLEY TODAY BEFORE EXITING INTO THE WESTERN
ATLANTIC LATER TONIGHT. AN AREA OF LIGHT TO MODERATE SNOWFALL WILL
DEVELOP OVER THE NORTHERN PERIPHERY OF THIS SYSTEM, GOING ON TO
PRODUCE A GENERAL SWATH OF 2-4" OF SNOW FROM EASTERN MISSOURI TO
SOUTHERN NEW JERSEY/DELAWARE. HEAVIER SNOWFALL WILL OCCUR OVER THE
CENTRAL APPALACHIANS OF WEST VIRGINIA INTO THE MARYLAND PANHANDLE
WHERE 4-6" WITH LOCALLY HIGHER AMOUNTS ARE POSSIBLE. THE TIMING OF
THIS SNOWFALL COULD CAUSE ISSUES DURING RUSH HOUR COMMUTES ACROSS
THE MIDWEST TODAY. LATE NIGHT TRAVEL COULD BE DICEY FROM THE DC UP
TO PHILADELPHIA METROS THIS EVENING.
ELSEWHERE, A DEEP SOUTHERN STREAM TROUGH WILL SUPPORT RAIN SHOWERS
AND THUNDERSTORMS ACROSS PARTS OF THE TEXAS/CENTRAL GULF COAST
THROUGH TONIGHT. SHORTWAVE ENERGY MOVING THROUGH THE ROCKIES WILL
PROMOTE MODERATE TO HEAVY SNOWFALL OVER THE NORTHERN AND CENTRAL
PORTIONS OF THE MOUNTAIN RANGE THROUGH THIS EVENING AS WELL. AN
ARCTIC AIRMASS WILL WORK IT'S WAY THROUGH THE CENTRAL AND SOUTHERN
PARTS OF THE COUNTRY THIS WEEKEND AS AN ASSOCIATED ARCTIC COLD
FRONT PROPAGATES THROUGH. TEMPERATURES ACROSS PARTS OF THE GREAT
PLAINS, MISSISSIPPI VALLEY AND EVENTUALLY SOUTHEAST WILL BE
BETWEEN 15-25 DEGREES BELOW AVERAGE THIS WEEKEND.
A DEEP UPPER-LEVEL LOW OVER THE EASTERN PACIFIC WILL SEND A PLUME
OF MOISTURE INTO THE WEST COAST ON SATURDAY. THIS MOISTURE WILL BE
SUPPORTED BY A LOW PRESSURE SYSTEM AND AN ATTENDANT COLD FRONT AT
THE SURFACE. HEAVY RAIN WILL DEVELOP ACROSS SOUTHERN OREGON AND
NORTHERN CALIFORNIA TONIGHT BEFORE SPREADING SOUTH INTO
CENTRAL/SOUTHERN CALIFORNIA ON SATURDAY. THERE'S A SLIGHT RISK OF
EXCESSIVE RAINFALL (LEVEL 2/4) LEADING TO FLASH FLOODING FOR
PORTIONS OF HUMBOLDT COUNTY DOWN TO SONOMA ON SATURDAY WHERE
BETWEEN 1-2"/HR RAINFALL RATES ARE POSSIBLE. HEAVY SNOW WILL
DEVELOP OVER THE SIERRA NEVADA AND SHASTA/TRINITY ON SATURDAY
NIGHT AS PACIFIC MOISTURE MOVE INLAND. ANOTHER LOW PRESSURE SYSTEM
WILL BRING YET ANOTHER ROUND OF HEAVY PRECIPITATION TO CALIFORNIA
ON SUNDAY. HEAVY RAINFALL FROM THE PRIOR DAY IN ADDITION TO THE
GENERAL SENSITIVITY OF CALIFORNIA'S COASTAL AREAS TO HEAVY
RAINFALL WILL SUPPORT A SLIGHT RISK OF FLASH FLOODING FROM
HUMBOLDT COUNTY DOWN TO VENTURA ON SUNDAY. THIS MOISTURE WILL
EVENTUALLY SHIFT INTO THE SIERRA AND TRINITY/SHASTA ONCE AGAIN,
AND WILL SUPPORT ADDITIONAL MODERATE TO HEAVY SNOWFALL OVER THOSE
MOUNTAIN RANGES. A TOTAL OF 1-2 FEET OF SNOW ARE POSSIBLE OVER THE
SIERRA THIS WEEKEND WHILE 1-3 FEET ARE MORE LIKELY OVER THE
TRINITY AND SHASTA MOUNTAINS.
KEBEDE
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