248
FXUS01 KWBC 031852
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
251 PM EDT FRI NOV 03 2023
VALID 00Z SAT NOV 04 2023 - 00Z MON NOV 06 2023
...MODEST ATMOSPHERIC RIVER ACTIVITY TO BRING MULTIPLE ROUNDS OF
BENEFICIAL PRECIPITATION ACROSS THE PACIFIC NORTHWEST AND THE
NORTHERN ROCKIES THIS WEEKEND INTO EARLY NEXT WEEK...
...LARGE AREAS OF THE COUNTRY WILL SEE MUCH WARMER TEMPERATURES
OVER THE FEW DAYS AS PACIFIC AIR ADVANCES EAST ACROSS THE
INTERMOUNTAIN WEST AND OUT INTO THE GREAT PLAINS AND MIDWEST...
A SERIES OF LOW PRESSURE SYSTEMS ADVANCING INTO WESTERN CANADA
WILL BRING MODEST ATMOSPHERIC RIVER ACTIVITY INTO THE PACIFIC
NORTHWEST THIS WEEKEND AND EARLY NEXT WEEK ALONG WITH A SERIES OF
FRONTAL PASSAGES. THE TRANSPORT OF PACIFIC MOISTURE AHEAD OF THESE
FRONTS ALONG WITH ONSHORE FLOW WILL BRING MULTIPLE ROUNDS OF
MODERATE TO HEAVY RAIN FOR THE COASTAL RANGES OF WASHINGTON,
OREGON AND NORTHWEST CALIFORNIA, BUT WITH SOME POTENTIAL FOR
LOCALLY HEAVY SNOWFALL FOR THE HIGHER PEAKS OF THE CASCADES. SOME
OF THIS PRECIPITATION IS EXPECTED TO SPILLOVER INTO THE HIGHER
TERRAIN OF THE NORTHERN ROCKIES AS WELL. GIVEN THE ONGOING DROUGHT
CONDITIONS ACROSS THE PACIFIC NORTHWEST, THIS PRECIPITATION IS
EXPECTED TO BE LARGELY BENEFICIAL AS LOCALLY SEVERAL INCHES OF
RAIN WILL BE EXPECTED FOR THE LOWER ELEVATIONS.
FARTHER SOUTH AND EAST ACROSS THE COUNTRY, THE STORY FOR THE
WEEKEND AND INTO EARLY NEXT WEEK WILL BE MOSTLY DRY WEATHER AND
MODERATING TEMPERATURES. IN FACT, THE INFLUX OF PACIFIC AIR ACROSS
THE INTERMOUNTAIN WEST AND DOWNSTREAM ACROSS THE GREAT PLAINS AND
MIDWEST BY SUNDAY AND MONDAY WILL ALLOW FOR TEMPERATURES TO SURGE
WELL ABOVE NORMAL. HIGH TEMPERATURES SHOULD GRADUALLY REACH THE
60S AND 70S ACROSS MANY AREAS OF THE MIDWEST AND WITH SOME 80S
EXPECTED FARTHER SOUTH OVER THE SOUTHERN PLAINS. MILDER
TEMPERATURES WILL ALSO BE ARRIVING ACROSS MANY AREAS OF THE SOUTH
AND THE EAST AS TEMPERATURES HERE ALSO ADVANCE ABOVE NORMAL.
DESPITE MUCH OF THE CENTRAL AND EASTERN U.S. BEING DRY, SOME
UNSETTLED WEATHER MAY IMPACT PARTS OF SOUTHEAST FLORIDA THIS
WEEKEND, AND ESPECIALLY ON SATURDAY, GIVEN CLOSE PROXIMITY OF A
FRONT WHICH WILL ENCOURAGE A THREAT OF SHOWERS AND POTENTIALLY
HEAVY RAINFALL. ALSO, INCREASING WARM AIR ADVECTION AND MOISTURE
ARRIVING AHEAD OF LOW PRESSURE CROSSING THE NORTHERN PLAINS ON
SUNDAY WILL BRING A THREAT OF RAIN FOR PORTIONS OF THE GREAT LAKES
REGION.
ORRISON
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page