525
FXUS01 KWBC 060751
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
250 AM EST MON JAN 06 2025
VALID 12Z MON JAN 06 2025 - 12Z WED JAN 08 2025
...MODERATE TO HEAVY SNOW FROM THE OHIO VALLEY TO THE MID-ATLANTIC
THROUGH LATE MONDAY NIGHT...
...LIGHT RAIN/FREEZING RAIN OVER PARTS OF THE OHIO VALLEY TO THE
MID-ATLANTIC ON MONDAY...
...THERE IS A MARGINAL RISK (LEVEL 1/5) OF SEVERE THUNDERSTORMS
OVER PARTS OF THE SOUTHEAST ON MONDAY...
A SIGNIFICANT STORM OVER THE OHIO VALLEY WILL MOVE EASTWARD OFF
THE MID-ATLANTIC COAST BY MONDAY EVENING. ON MONDAY, A MAJOR
DISRUPTIVE WINTER STORM WILL AFFECT THE AREA FROM THE OHIO VALLEY
TO THE MID-ATLANTIC, LEADING TO SEVERE TRAVEL DELAYS. THE STORM
WILL PRODUCE MODERATE TO HEAVY SNOW FROM PARTS OF THE OHIO VALLEY
THROUGH TO THE MID-ATLANTIC. THE SNOW WILL CONTINUE INTO LATE
MONDAY NIGHT OVER THE MID-ATLANTIC.
THE SYSTEM WILL PRODUCE 6-12 INCHES OF SNOW ACROSS THE
MID-ATLANTIC, INCLUDING THE WASHINGTON, D.C. METRO AREA. TRAVELERS
SHOULD ANTICIPATE SIGNIFICANT DISRUPTIONS. AN ADDITIONAL 2-4
INCHES OF SNOW WILL FALL ACROSS PORTIONS OF THE OHIO VALLEY AND
CENTRAL APPALACHIANS, WHERE TRAVEL DISRUPTIONS WILL CONTINUE.
FURTHERMORE, LIGHT ICING/FREEZING RAIN WILL DEVELOP OVER PARTS OF
OHIO VALLEY TO THE MID-ATLANTIC, ENDING BY MONDAY EVENING OVER THE
MID-ATLANTIC. DANGEROUS TRAVEL CONDITIONS WILL DEVELOP OVER THE
REGION.
MOREOVER, AS THE ASSOCIATED FRONT MOVES ACROSS THE SOUTHEAST,
STRONG TO SEVERE THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE
REGION ON MONDAY. THEREFORE, THE SPC HAS ISSUED A MARGINAL RISK
(LEVEL 1/5) OF SEVERE THUNDERSTORMS OVER PARTS OF THE SOUTHEAST
THROUGH TUESDAY MORNING. THE HAZARDS ASSOCIATED WITH THESE
THUNDERSTORMS ARE FREQUENT LIGHTNING, SEVERE THUNDERSTORM WIND
GUSTS, ISOLATED TORNADOES, AND A MINIMAL THREAT OF HAIL.
IN ADDITION, ON MONDAY, LIGHT LAKE-EFFECT SNOW WILL BE ONGOING
DOWNWIND FROM THE GREAT LAKES AND UPSLOPE SNOW OVER PARTS OF THE
NORTHEAST. IN THE WAKE OF THE STORM, ON TUESDAY, LIGHT TO MODERATE
LAKE-EFFECT SNOW WILL CONTINUE DOWNWIND FROM THE GREAT LAKES AND
INTO UPSLOPE REGIONS OF NORTHERN NEW ENGLAND.
MEANWHILE, ON MONDAY, UPPER-LEVEL ENERGY OVER THE NORTHWEST WILL
MOVE SOUTHWARD TO NORTHWESTERN MEXICO BY TUESDAY NIGHT, CREATING A
DEEP UPPER-LEVEL TROUGH OVER THE SOUTHWEST. THE ENERGY WILL
PRODUCE COASTAL RAIN AND HIGHER-ELEVATION SNOW OVER PARTS OF THE
PACIFIC NORTHWEST AND NORTHERN CALIFORNIA THROUGH MONDAY
AFTERNOON. LIGHT SNOW WILL CONTINUE OVER THE NORTHERN
INTERMOUNTAIN REGION, THE GREAT BASIN, AND THE NORTHERN ROCKIES BY
MONDAY EVENING.
THE LIGHT SNOW WILL EXPAND INTO PARTS OF THE CENTRAL ROCKIES
OVERNIGHT MONDAY AND INTO THE SOUTHERN ROCKIES ON TUESDAY. BY
TUESDAY EVENING, LIGHT SNOW WILL EXPAND INTO PARTS OF THE
CENTRAL/SOUTHERN HIGH PLAINS. FURTHER, ADDITIONAL UPPER-LEVEL
ENERGY WILL COME ONSHORE OVER THE PACIFIC NORTHWEST TUESDAY
EVENING INTO WEDNESDAY. THE NEW ENERGY WILL CREATE LIGHT COASTAL
RAIN AND HIGHER-ELEVATION SNOW OVER PARTS OF THE PACIFIC NORTHWEST.
ZIEGENFELDER
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
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