508
FXUS01 KWBC 030801
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
300 AM EST WED JAN 03 2024
VALID 12Z WED JAN 03 2024 - 12Z FRI JAN 05 2024
...SHOWERS AND THUNDERSTORMS SPREAD EASTWARD FROM THE CENTRAL GULF
COAST TUESDAY INTO FLORIDA AND PORTIONS OF THE SOUTHEAST TUESDAY
NIGHT...
...LAKE-EFFECT SNOW SHOWERS FORECAST DOWNWIND FROM THE GREAT
LAKES...
...LOWER ELEVATION/COASTAL RAIN AND HIGHER ELEVATION ACCUMULATING
SNOWFALL CONTINUES IN CALIFORNIA, THE GREAT BASIN, AND THE
SOUTHWEST/FOUR CORNERS REGION WEDNESDAY, WITH SNOW SHIFTING INTO
THE CENTRAL/SOUTHERN HIGH PLAINS THURSDAY...
...PRECIPITATION CHANCES REMAIN IN THE FORECAST FOR THE PACIFIC
NORTHWEST AS A COUPLE SYSTEM PASS THROUGH...
AN ACTIVE WEATHER PATTERN LOOKS TO CONTINUE FOR THE FORESEEABLE
FUTURE AS A SERIES OF SYSTEMS FOLLOW AN ENERGETIC JET STREAM
EASTWARD FROM THE WEST COAST THROUGH THE SOUTH. GULF MOISTURE
OVERRUNNING A FRONTAL BOUNDARY WITH A SYSTEM CURRENTLY MOVING
ALONG THE CENTRAL GULF COAST WILL CONTINUE TO ENCOURAGE MODERATE
TO LOCALLY HEAVY RAINFALL WITH SHOWERS AND THUNDERSTORMS
WEDNESDAY. STORM CHANCES WILL SHIFT EASTWARD WITH THE SYSTEM INTO
FLORIDA AND NORTHEASTWARD ALONG THE ATLANTIC COAST THROUGH GEORGIA
AND THE CAROLINAS BY TUESDAY EVENING AND INTO EARLY WEDNESDAY
MORNING. TO THE NORTH, A FRONTAL WAVE DROPPING THROUGH THE GREAT
LAKES WITH ACCOMPANYING NORTHERN AND WESTERLY CYCLONIC FLOW WILL
ENCOURAGE LAKE-EFFECT SNOW SHOWERS. FAVORABLE LOCATIONS SOUTH AND
EAST OF LAKES SUPERIOR AND MICHIGAN AND EAST OF LAKES ERIE AND
ONTARIO WILL GENERALLY SEE AROUND 1-4" OF ACCUMULATION, WITH SOME
LOCALLY HIGHER AMOUNTS POSSIBLE, PARTICULARLY DOWNWIND OF LAKE
ONTARIO WITH SOME MORE INTENSE SNOW BANDS. THE SNOW WILL TAPER OFF
BY EARLY THURSDAY.
LOWER ELEVATION COASTAL RAIN, A WINTRY MIX FOR INTERIOR VALLEYS,
AND HIGHER ELEVATION SNOW WILL CONTINUE ACROSS CALIFORNIA, THE
GREAT BASIN, AND THE SOUTHWEST/FOUR CORNERS REGION TUESDAY AS A
STORM SYSTEM PASSES THROUGH THE REGION. THE FOCUS FOR MODERATE TO
LOCALLY HEAVY SNOWFALL WILL SHIFT FROM PORTIONS OF CALIFORNIA
EARLIER TUESDAY INTO THE GREAT BASIN AND SOUTHWEST/FOUR CORNERS
REGION TUESDAY AFTERNOON AND EVENING. ADDITIONAL ACCUMULATIONS OF
AT LEAST A FEW INCHES ARE EXPECTED FOR THE NORTHERN COASTAL
RANGES, KLAMATH MOUNTAINS AND SIERRA IN NORTHERN/CENTRAL
CALIFORNIA, AS WELL AS FOR HIGHER ELEVATIONS IN THE MOUNTAINS OF
SOUTHERN CALIFORNIA, GENERALLY AROUND THE GREATER LOS ANGELES
AREA. SOME HEAVIER TOTALS OF 5-10"+ WILL BE POSSIBLE ACROSS
PORTIONS OF THE CENTRAL GREAT BASIN IN NEVADA, WITH GENERALLY 4-6"
INTO THE FOUR CORNERS REGION. ANY ACCUMULATIONS FOR INTERIOR LOWER
ELEVATION/VALLEY LOCATIONS SHOULD REMAIN VERY LIGHT. HIGH SURF
WILL ONCE AGAIN BE A CONCERN ALONG COASTAL CALIFORNIA. THE SYSTEM
WILL CONTINUE EASTWARD THURSDAY, TAPPING INTO GULF MOISTURE AS
SOUTHERLY FLOW INCREASES AHEAD OF THE SYSTEM OVER THE SOUTHERN
PLAINS. SNOW IS EXPECTED FOR PORTIONS OF THE CENTRAL/SOUTHERN HIGH
PLAINS, WITH A GROWING CONCERN FOR AT LEAST A FEW INCHES OF
ACCUMULATING SNOWFALL IN NORTHEASTERN NEW MEXICO, SOUTHEASTERN
COLORADO, AND WESTERN PORTIONS OF THE OKLAHOMA AND TEXAS
PANHANDLES. SHOWER AND THUNDERSTORM CHANCES WILL PICK UP LATE
THURSDAY/OVERNIGHT FRIDAY FOR PORTIONS OF EASTERN TEXAS INTO
SOUTHERN OKLAHOMA, WITH A WINTRY MIX IN THE TRANSITION ZONE ACROSS
NORTHERN OKLAHOMA INTO SOUTHERN KANSAS.
PRECIPITATION CHANCES WILL ALSO CONTINUE IN THE PACIFIC NORTHWEST
AS THE INITIAL SYSTEM DEPARTS WEDNESDAY AND A SECOND PACIFIC
SYSTEM APPROACHES BY EARLY THURSDAY. MODERATE RAIN SHOWERS ARE
LIKELY FOR LOWER ELEVATION/COASTAL LOCATIONS WITH ACCUMULATING
SNOWFALL FOR HIGHER ELEVATIONS OF THE CASCADES. SOME PRECIPITATION
WILL ALSO SPREAD INTO INTERIOR LOCATIONS OF THE PACIFIC NORTHWEST
AND THE NORTHERN ROCKIES, WITH A WINTRY MIX FOR LOWER ELEVATIONS
AND A FEW INCHES OF SNOW POSSIBLE FOR HIGHER ELEVATIONS IN THE
AREA MOUNTAINS.
HIGH TEMPERATURES WILL GENERALLY BE NEAR AVERAGE TO ABOVE AVERAGE
ALONG THE NORTHERN TIER OF THE COUNTRY. HIGHS FROM THE NORTHERN
PLAINS EASTWARD THROUGH THE UPPER MIDWEST AND INTO THE GREAT LAKES
WILL BE IN THE 20S AND 30S WITH 30S AND 40S IN NEW ENGLAND. HIGHS
IN THE 30S AND 40S WILL ALSO BE COMMON FROM THE CENTRAL PLAINS
EASTWARD THROUGH THE MIDWEST, OHIO VALLEY, AND INTO THE
MID-ATLANTIC. AREAS TO THE SOUTH WILL BE RUNNING BELOW AVERAGE AS
THE ACTIVE STORM TRACK WITH FRONTAL PASSAGES AND PRECIPITATION
CHANCES KEEPS TEMPERATURES DOWN. MANY CHILLY HIGHS IN THE 40S ARE
EXPECTED WEDNESDAY BEFORE CONDITIONS MODERATE A BIT THURSDAY, WITH
HIGHS INTO THE 50S. THE SOUTHERN PLAINS WILL MOSTLY BE IN THE 50S
WHILE THE DESERT SOUTHWEST AND SOUTHERN CALIFORNIA WILL BE IN THE
50S AND 60S.
PUTNAM
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