248
FXUS01 KWBC 032001
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 PM EDT SAT JUN 03 2023
VALID 00Z SUN JUN 04 2023 - 00Z TUE JUN 06 2023
...UNSETTLED WEATHER TO CONTINUE THROUGH THE WEEKEND ACROSS MUCH
OF THE HIGH PLAINS AND INTO THE CENTRAL/NORTHERN ROCKIES WITH
LOCALLY HEAVY RAINFALL...
...HOT TEMPERATURES TO CONTINUE ACROSS THE NORTHERN PLAINS AND
MUCH OF THE MIDWEST...
...MUCH COLDER WEATHER WITH MUCH BELOW NORMAL TEMPERATURES
EXPECTED ACROSS THE NORTHEAST...
A BROAD AREA OF UNSETTLED WEATHER WILL CONTINUE THROUGH THE
WEEKEND ACROSS MANY AREAS OF THE HIGH PLAINS AND THROUGH THE
CENTRAL AND NORTHERN ROCKIES AS A LARGE UPPER-LEVEL TROUGH
PERSISTS OVER THE REGION. SCATTERED AREAS OF SHOWERS AND
THUNDERSTORMS ARE EXPECTED, AND LOCALLY HEAVY RAINFALL WILL BE
POSSIBLE. IN FACT, THE WEATHER PREDICTION CENTER HAS DEPICTED A
SLIGHT RISK OF EXCESSIVE RAINFALL ACROSS AREAS OF NORTHERN WYOMING
THROUGH CENTRAL MONTANA, AND ALSO SEPARATELY FOR AREAS OF THE
TEXAS PANHANDLE, WESTERN OKLAHOMA AND FAR SOUTHWEST KANSAS GOING
THROUGH TONIGHT WHERE SLOW-MOVING SHOWERS AND THUNDERSTORMS ARE
EXPECTED. ISOLATED TO LOCALLY SCATTERED INSTANCES OF FLASH
FLOODING WILL BE POSSIBLE ACROSS THESE AREAS. ON SUNDAY, THE
EXCESSIVE RAINFALL THREAT WILL TAPER DOWN A BIT ACROSS THE
NORTHERN HIGH PLAINS, BUT WILL CONTINUE FOR AREAS OF THE SOUTHERN
HIGH PLAINS WITH A FOCUS ON THE TEXAS PANHANDLE. THE SEVERE
WEATHER THREAT WILL OVERALL BE QUITE ISOLATED THIS WEEKEND, BUT
THE STORM PREDICTION CENTER DOES DEPICT A SLIGHT RISK OF SEVERE
THUNDERSTORMS ACROSS THE LOWER RIO GRANDE VALLEY IN SOUTH TEXAS
THROUGH THIS EVENING WHERE SOME STORMS MAY PRODUCE LARGE HAIL AND
DAMAGING WINDS.
ELSEWHERE, A STRONG UPPER-LEVEL RIDGE OF HIGH PRESSURE OVER THE
NORTHERN PLAINS AND UPPER MIDWEST WILL KEEP MANY OF THESE AREAS
RATHER HOT WITH HIGH TEMPERATURES IN THE UPPER 80S TO THE LOW 90S
WHICH WILL BE AS MUCH AS 10 TO 20 DEGREES ABOVE NORMAL FOR THIS
TIME OF THE YEAR. A FEW WIDELY SCATTERED SHOWERS AND THUNDERSTORMS
ARE ALSO EXPECTED. BY MONDAY, A COLD FRONT ADVANCING SOUTH FROM
CANADA WILL BEGIN TO HELP COOL OFF AREAS OF THE UPPER MIDWEST AND
THROUGH THE GREAT LAKES REGION. MEANWHILE, THE NORTHEAST U.S. WILL
SEE QUITE THE OPPOSITE WEATHER PATTERN FOR THE REMAINDER OF THE
WEEKEND AND INTO EARLY NEXT WEEK AS A STRONG UPPER-LEVEL LOW DROPS
SOUTH FROM AREAS OF SOUTHEAST CANADA AND DOWN THROUGH NEW ENGLAND.
THIS WILL BRING MUCH COLDER AIR DOWN ALONG WITH IT, WITH
TEMPERATURES FORECAST TO BE WELL BELOW NORMAL. SOME HIGH
TEMPERATURES WILL STAY IN THE 50S THE NEXT COUPLE OF DAYS AND BE
AS MUCH AS 10 TO 20 DEGREES BELOW NORMAL. THE COLDER TEMPERATURES
WILL BE AMPLIFIED IN PART BY CLOUD COVER AND AREAS OF RAIN,
ESPECIALLY ALONG THE NEW ENGLAND COAST, AS LOW PRESSURE
STRENGTHENS OFFSHORE OVER THE NEXT COUPLE OF DAYS.
THE WEATHER ACROSS THE REMAINDER OF THE COUNTRY FOR THE NEXT
COUPLE OF DAYS WILL BE RATHER TRANQUIL ALTHOUGH COOLER
TEMPERATURES WILL TEND TO FILTER SOUTH DOWN ACROSS THE
MID-ATLANTIC AND INTO THE SOUTHEAST AS NORTHEAST WINDS ADVANCE
DOWN THE COAST BEHIND A COLD FRONT. SOME SCATTERED SHOWER AND
THUNDERSTORM ACTIVITY IS EXPECTED FROM THE CENTRAL APPALACHIANS
DOWN THROUGH THE TENNESSEE VALLEY AND THE CENTRAL AND WESTERN GULF
COAST REGION. ALONG THE WEST COAST, GENERALLY DRY WEATHER IS
EXPECTED, ALTHOUGH SOME SCATTERED SHOWERS AND THUNDERSTORMS WILL
BE POSSIBLE BY EARLY NEXT WEEK OVER THE SIERRA NEVADA.
TEMPERATURES WILL ALSO BE WARMING WELL ABOVE NORMAL ACROSS AREAS
OF THE PACIFIC NORTHWEST, WITH NEAR TO LOCALLY BELOW NORMAL
TEMPERATURES EXPECTED FOR THE SOUTHWEST.
ORRISON
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