685
FXUS01 KWBC 220821
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
320 AM EST MON JAN 22 2024
VALID 12Z MON JAN 22 2024 - 12Z WED JAN 24 2024
...MORE UNSETTLED WEATHER EXPECTED TO IMPACT THE WEST COAST WITH
HEAVY RAIN IMPACTING CALIFORNIA TODAY...
...FREEZING RAIN ACROSS THE CENTRAL PLAINS THIS MORNING IS
EXPECTED TO RAPIDLY SPREAD NORTHEASTWARD INTO THE MIDWEST TODAY
FOLLOWED BY ANOTHER ROUND OF FREEZING RAIN TONIGHT FROM THE
MIDWEST TO THE LOWER GREAT LAKES...
..ACCUMULATING SNOWFALL ACROSS THE LOWER GREAT LAKES ON TUESDAY
...A COUPLE ROUNDS OF HEAVY RAIN WILL RAISE FLOODING POTENTIAL
ACROSS EASTERN TEXAS TODAY, EXPANDING EAST INTO THE LOWER
MISSISSIPPI VALLEY TUESDAY INTO EARLY WEDNESDAY...
AS AN EXPANSIVE ARCTIC HIGH PRESSURE SYSTEM SLIDES EASTWARD ACROSS
THE EASTERN U.S. TODAY, DEEP RETURN FLOW BEHIND THE SYSTEM IS
DIRECTING A CHANNEL OF MOISTURE FROM THE GULF OF MEXICO INTO THE
SOUTHERN PLAINS. HEAVY RAIN HAS QUICKLY SPREAD ACROSS SOUTHERN
TEXAS THIS MORNING. FARTHER TO THE NORTH WHERE THE PRESENCE OF
ARCTIC AIR IS BEING FELT, SNOW, SLEET AND ICE ARE IMPACTING
PORTIONS OF OKLAHOMA, KANSAS, ARKANSAS, AND MISSOURI. STRONG
UPPER-LEVEL FLOW WILL DIRECT THIS CHANNEL OF MOISTURE QUICKLY
NORTHEASTWARD TODAY, BRINGING PERIODS OF FREEZING RAIN AND SLEET
UP ACROSS THE MIDWEST, REACHING INTO THE LOWER GREAT LAKES
TONIGHT. ADDITIONAL UPPER-LEVEL ENERGY EXITING THE ROCKIES AND
MOVING INTO THE SOUTHERN PLAINS WILL DEVELOP A COUPLE OF LOW
PRESSURE SYSTEMS, BRINGING A COUPLE QUICK ROUNDS OF RAIN ACROSS
THE MIDWEST ON TUESDAY AND AGAIN BY WEDNESDAY. COLDER AIR FARTHER
TO THE NORTH WILL SUPPORT ACCUMULATING SNOWFALL FROM THE UPPER
MIDWEST TO THE LOWER GREAT LAKES AND THEN ACROSS PORTIONS OF NEW
ENGLAND TUESDAY AND INTO EARLY WEDNESDAY AS THE NEXT ROUND OF
HEAVY RAIN DEVELOPS ACROSS EASTERN TEXAS.
ALONG THE WEST COAST, A PARADE OF FRONTAL SYSTEMS ARRIVING FROM
THE PACIFIC WILL BRING MORE ACTIVE WEATHER ONSHORE THROUGH THE
NEXT COUPLE OF DAYS. HEAVY RAIN WILL LIKELY CONTINUE ACROSS
NORTHERN CALIFORNIA TODAY, FOLLOWED BY A LULL ON TUESDAY BEFORE
THE NEXT SURGE OF HEAVY RAIN EXPECTED TO REACH NORTHWESTERN
CALIFORNIA EARLY ON WEDNESDAY. MEANWHILE, HEAVY WET SNOW IS
EXPECTED ALONG THE SIERRA NEVADA DURING SIMILAR TIME FRAME. MIXED
PRECIPITATION WILL ALSO PENETRATE FURTHER INLAND ACROSS THE
INTERMOUNTAIN REGION AND INTO THE ROCKIES WITH FREQUENT PASSAGES
OF UPPER-LEVEL TROUGHS. UNSETTLED WEATHER WILL ALSO CONTINUE
ALONG THE COAST OF THE PACIFIC NORTHWEST WITH A LULL EXPECTED
TUESDAY NIGHT.
WITH NO ADDITIONAL REPLENISHMENT OF ARCTIC AIR FROM CANADA, A
STEADY WARM-UP IS EXPECTED TO SPREAD ACROSS THE COUNTRY FROM WEST
TO EAST THROUGH THE NEXT COUPLE OF DAYS. TODAY WILL BE THE FINAL
DAY OF THE DEEP FREEZE OVER THE EAST COAST WHERE TEMPERATURES WILL
START OUT IN THE TEENS BUT THEY WILL QUICKLY REBOUND TO NEAR
NORMAL LEVELS ON TUESDAY.
KONG
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page