988
FXUS01 KWBC 280616
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
216 AM EDT SUN APR 28 2024
VALID 12Z SUN APR 28 2024 - 12Z TUE APR 30 2024
...MORE ROUNDS OF EXCESSIVE RAINFALL AND SEVERE WEATHER EXPECTED
TO PUSH EASTWARD INTO THE LOWER MISSISSIPPI VALLEY TODAY AND
MONDAY...
...HIGH-ELEVATION SNOW IS FORECAST TO SPREAD INLAND FROM THE
PACIFIC NORTHWEST INTO THE NORTHERN ROCKIES ON MONDAY...
...WARMER THAN AVERAGE TEMPERATURES SPREADS FROM MIDWEST INTO
MID-ATLANTIC TODAY WHILE WELL BELOW AVERAGE TEMPERATURES SHIFT
FROM THE FOUR CORNERS AND ROCKIES INTO THE NORTHERN PLAINS...
MORE ACTIVE AND UNSETTLED WEATHER IS FORECAST TO CONTINUE ACROSS
THE MID-SECTION OF THE COUNTRY THROUGH THE REMAINDER OF THE
WEEKEND INTO MONDAY. MULTIPLE DISTURBANCES EMBEDDED WITHIN A
SLOW-MOVING UPPER-LEVEL TROUGH RESPONSIBLE FOR THE ACTIVE WEATHER
ARE CURRENTLY DEVELOPING ANOTHER LOW PRESSURE SYSTEM OVER THE
CENTRAL PLAINS. TODAY, THE MAIN AREA OF THUNDERSTORMS WILL PUSH
FARTHER EASTWARD TOWARD THE MID AND LOWER MISSISSIPPI VALLEY WITH
A SLIGHTLY LOWER THREAT OF SEVERE WEATHER THAN SATURDAY.
MEANWHILE, THE HEAVIEST RAINS SHOULD PUSH FARTHER SOUTHEAST INTO
THE ARKLATEX REGION AS THE TRAILING COLD FRONT ASSOCIATED WITH THE
LOW PRESSURE SYSTEM BEGINS TO WEAKEN. THE CENTER OF THE LOW IS
FORECAST TO TRACK NORTHEAST ACROSS THE CENTRAL PLAINS ON SUNDAY,
REACHING INTO THE UPPER MIDWEST ON MONDAY. STRONG TO LOCALLY
SEVERE THUNDERSTORMS CAN BE EXPECTED TO EXTEND NORTHEAST ACROSS
THESE AREAS INCLUDING THE MIDWEST AHEAD OF A WARM FRONT TO THE
EAST OF THE LOW PRESSURE CENTER. MEANWHILE, THE THREAT OF HEAVY
RAIN WILL PUSH FARTHER SOUTHEAST INTO THE LOWER TO MID-MISSISSIPPI
VALLEY AS THE COLD FRONT PUSHES EASTWARD. THERE'S ARE SLIGHT RISK
(AT LEAST 15%) OF EXCESSIVE RAINFALL LEADING TO FLASH FLOODING
OVER PORTIONS OF THE EASTERN SOUTHERN PLAINS AND LOWER MISSISSIPPI
VALLEY TODAY AND EXTENDING INTO JUST THE LOWER MISSISSIPPI
VALLEY/CENTRAL GULF COAST ON MONDAY. THE STORM PREDICTION CENTER
ISSUED AN ENHANCED RISK (LEVEL 3/5) OF SEVERE THUNDERSTORMS ACROSS
PORTIONS OF THE EASTERN SOUTHERN PLAINS AND MIDDLE/LOWER
MISSISSIPPI VALLEY TODAY.
ELSEWHERE, ANOTHER LOW PRESSURE SYSTEM WILL BEGIN TO MOVE AWAY
FROM THE GREAT LAKES INTO CANADA WITH SCATTERED SHOWERS ENDING
OVER THE UPPER GREAT LAKES BUT CONTINUING FROM THE LOWER GREAT
LAKES INTO NEW ENGLAND. STRONG SOUTHERLY FLOW BEHIND A HIGH
PRESSURE SYSTEM WILL BRING VERY WARM AIR NORTHWARD INTO THE EAST
COAST THROUGH THE NEXT COUPLE OF DAYS WITH HIGH TEMPERATURES
CLIMBING WELL INTO THE 80S TO POSSIBLY NEAR 90 DEGREES FOR THE
INTERIOR MID-ATLANTIC. THESE TEMPERATURES WILL BE IN CONTRAST TO
THE COOL TEMPERATURES EXPECTED FOR THE PACIFIC NORTHWEST BY MONDAY
AS THE NEXT UPPER-LEVEL TROUGH FROM THE PACIFIC IS FORECAST TO
PUSH INLAND. THIS TROUGH WILL BRING WIDESPREAD HIGH-ELEVATION
SNOW AND LOWER ELEVATION RAIN ACROSS THE PACIFIC NORTHWEST TOWARD
THE NORTHERN ROCKIES ON MONDAY WITH INCREASINGLY WINDY CONDITIONS
AS A LOW PRESSURE SYSTEM BEGINS TO DEVELOP OVER THE NORTHERN HIGH
PLAINS INTO SOUTHERN CANADA.
KEBEDE/KONG
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page