Prognostic Meteorological Discussion
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6
000
FXUS01 KWBC 220759
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
259 AM EST MON JAN 22 2018

VALID 12Z MON JAN 22 2018 - 12Z WED JAN 24 2018

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
EASTERN TEXAS AND THE LOWER MISSISSIPPI VALLEY...

...WINTER STORM SYSTEM TO CONTINUE PRODUCING HEAVY SNOW, RAIN AND
FREEZING RAIN FROM THE CENTRAL PLAINS TO THE UPPER MISSISSIPPI
VALLEY, GREAT LAKES AND THE NORTHEAST...

...HEAVY RAIN AND SNOW POSSIBLE OVER PARTS OF THE PACIFIC
NORTHWEST/NORTHERN CALIFORNIA AND NORTHERN NEW ENGLAND COAST...

BLIZZARD WARNINGS, WINTER STORM WARNINGS AND WINTER WEATHER
ADVISORIES ARE IN EFFECT FROM EASTERN COLORADO TO UPPER MICHIGAN -
WITH A FEW COUNTIES ACROSS UPSTATE NEW YORK, VERMONT AND NORTHERN
MAINE. THIS STORM WILL HAVE SIGNIFICANT IMPACTS ON TRANSPORTATION;
WITH MANY ROADS WITH TREACHEROUS OR IMPOSSIBLE DRIVING CONDITIONS.

WIDESPREAD SNOW AND RAIN WILL CONTINUE TO SPREAD ACROSS THE
CENTRAL AND NORTHERN STATES AS A WINTER STORM LIFTS NORTHEAST
THROUGH THE MIDWEST TODAY AND THROUGH THE NORTHEAST BY WEDNESDAY.
THE SNOW WILL BE HEAVY AT TIMES OVER PORTIONS OF THE CENTRAL
PLAINS AND UPPER MISSISSIPPI VALLEY THROUGHOUT THE DAY BEFORE
TAPERING OFF OVER THE CENTRAL PLAINS TONIGHT. SNOW WILL DEVELOP
OVER THE UPPER GREAT LAKES AND NORTHERN NEW ENGLAND THIS AFTERNOON
AND WILL EXPAND SOUTH AND EAST TO THE LOWER LAKES AND NORTHEAST
CONTINUING INTO TUESDAY AND WEDNESDAY. A NARROW TRANSITION ZONE
ALONG THE FRONT WILL SUPPORT FREEZING RAIN BEFORE CHANGING OVER TO
SNOW.

RAIN WILL EXPAND INTO THE OHIO VALLEY/LOWER GREAT LAKES THIS
MORNING, INTO SOUTHERN NEW ENGLAND BY THIS EVENING AND INTO THE
NORTHERN MID-ATLANTIC BY EARLY TUESDAY.  IN THE TRANSITION ZONE
BETWEEN THE RAIN AND SNOW, RAIN/FREEZING RAIN WILL DEVELOP IN
BANDS ACROSS THE GREAT LAKES TODAY INTO NEW ENGLAND OVERNIGHT
MONDAY INTO TUESDAY. SHOWERS AND THUNDERSTORMS WILL MOVE TO PARTS
OF THE OHIO VALLEY SOUTHWARD TO THE EASTERN GULF COAST AND TO
PARTS OF THE MID-ATLANTIC INTO THE SOUTHEAST BY TUESDAY MORNING.

OUT WEST, UPPER-LEVEL ENERGY WILL PUSH INLAND OVER THE PACIFIC
NORTHWEST SPREADING RAIN AND MOUNTAIN SNOW FROM THE
WASHINGTON/CALIFORNIA COAST TO THE NORTHERN PLAINS BY TUESDAY.
SNOW IS EXPECTED TO BE HEAVY OVER THE CASCADES AND NORTHERN
INTERMOUNTAIN REGION OVER THE NEXT FEW DAYS. ONSHORE FLOW WILL
INCREASE TUESDAY INTO WEDNESDAY AS THE ANOTHER PACIFIC SYSTEM
APPROACHES THE NORTHWEST.

CAMPBELL


GRAPHICS AVAILABLE AT
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
$$





USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.