638
FXUS01 KWBC 182007
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
300 PM EST SUN FEB 18 2024
VALID 00Z MON FEB 19 2024 - 00Z WED FEB 21 2024
...A MODERATE RISK OF EXCESSIVE RAINFALL IS ANTICIPATED ALONG
COASTAL CENTRAL CALIFORNIA THROUGH MONDAY...
...HEAVY SNOW LIKELY OVER SIERRA NEVADA AND MOUNT SHASTA IN
CALIFORNIA...
...WARMING TREND EXPECTED TO EXPAND ACROSS THE GREAT PLAINS
THROUGH MIDWEEK...
THE NEW WEEK WILL BEGIN WITH A RATHER POTENT LOW PRESSURE SYSTEM
GETTING READY TO DELIVER THE NEXT ROUND OF HEAVY PRECIPITATION
INTO WEST COAST MAINLY FOCUSING ACROSS CALIFORNIA. THE FIRST
BATCH OF MODERATE TO HEAVY RAIN IS FORECAST TO REACH COASTAL
NORTHERN CALIFORNIA LATER TODAY (SUNDAY). THIS WILL BE FOLLOWED
BY THE ARRIVAL OF THE HEAVIEST PRECIPITATION ASSOCIATED WITH THE
SYSTEM ON MONDAY. A COUPLE OF INCHES OF RAIN CAN BE EXPECTED TO
FALL ACROSS THE LOWER ELEVATIONS OF NORTHERN CALIFORNIA WHILE
COASTAL CENTRAL TO SOUTHERN CALIFORNIA IS EXPECTED TO RECEIVE THE
HEAVIEST RAINS TOTALING A FEW INCHES THROUGH THE NEXT COUPLE OF
DAYS. THESE RAINS ARE EXPECTED TO RAISE OF RISK OF FLASH FLOODING
TO MODERATE LEVELS IN THE AFFECTED AREAS. MEANWHILE, THE SIERRA
NEVADA AND MOUNT SHASTA WILL BE IMPACTED BY AN ONSLAUGHT OF HEAVY
SNOW ON MONDAY, WITH NEW SNOW LIKELY TOTALING A FEW FEET THROUGH
THE NEXT COUPLE OF DAYS. BY TUESDAY, BOTH THE INTENSITY AND
COVERAGE OF THE PRECIPITATION ARE EXPECTED TO DECREASE AS THE
SYSTEM PUSHES FARTHER INLAND AND WEAKENS. NEVERTHELESS, MUCH OF
CALIFORNIA WILL LIKELY RECEIVE LIGHT TO MODERATE PRECIPITATION ON
TUESDAY AS SOUTHERN CALIFORNIA IS EXPECTED TO SEE STEADIER
RAINFALL MOVING IN. MEANWHILE, ELEVATION-DEPENDENT RAIN/SNOW
ASSOCIATED WITH THE WEAKENED SYSTEM WILL SPREAD NORTHEASTWARD
ACROSS THE GREAT BASIN AND INTO THE NORTHERN ROCKIES OVER THE NEXT
COUPLE OF DAYS.
ACROSS THE NORTHEAST, A CLIPPER SYSTEM SLIDING ACROSS SOUTHEASTERN
CANADA WILL ONLY BRING LIMITED AREAS OF LAKE-ENHANCED SNOWFALL
ACROSS THE LOWER GREAT LAKES AND INTERIOR NORTHERN NEW ENGLAND
THROUGH TONIGHT BEFORE TAPERING OFF MONDAY MORNING. OVER FLORIDA,
A LOW PRESSURE SYSTEM DEVELOPING OVER THE GULF OF MEXICO ALONG A
STALLED FRONT WILL TRAVERSE THE FLORIDA PENINSULA BY THIS EVENING
BEFORE MOVING OUT INTO THE ATLANTIC ON MONDAY. GENERALLY A COUPLE
OF INCHES OF RAIN, WITH LOCALLY HIGHER AMOUNTS, CAN BE EXPECTED
WITH THIS SYSTEM.
MEANWHILE, THE GREAT PLAINS AND A LARGE PORTION OF THE EASTERN
U.S. WILL REMAIN DRY THROUGH THE NEXT COUPLE OF DAYS. A WARMING
TREND IS EXPECTED TO EXPAND ACROSS THE GREAT PLAINS THROUGH
MIDWEEK WHERE AN UPPER RIDGE IS FORECAST TO BUILD. DRY CONDITIONS
WILL EXTEND INTO PORTIONS OF THE FOUR CORNERS REGION AS WELL.
KONG
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