888
FXUS63 KGRB 142310
AFDGRB
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
610 PM CDT WED APR 14 2021
UPDATED AVIATION PORTION FOR 00Z TAF ISSUANCE
SHORT TERM
TONIGHT AND THURSDAY
ISSUED AT 257 PM CDT WED APR 14 2021
AN UPPER LOW OVER LOWER MICHIGAN AND A SURFACE
TROUGH MOVING SOUTH ACROSS NORTHEAST WISCONSIN WILL PRODUCE
SCATTERED RAIN AND SNOW SHOWERS THROUGH TONIGHT.
FORECAST SOUNDINGS SUGGEST THAT THE PRECIPITATION WILL BE LARGELY
RAIN UNTIL MIDDLE TO LATE EVENING WHEN BOUNDARY LAYER TEMPERATURES
COOL ENOUGH FOR SNOW TO REACH THE GROUND. THERE COULD BE A SMALL
ACCUMULATION OF SNOW ON THE GRASS MOSTLY IN THE FAR NORTHEAST PART
OF THE STATE.
SOME CLEARING IS EXPECTED BY THURSDAY AFTERNOON AS THE LOW
PRESSURE SYSTEM MOVES AWAY AND HIGH PRESSURE BEGINS TO ARRIVE FROM
THE NORTHERN PLAINS.
LONG TERM
THURSDAY NIGHT THROUGH WEDNESDAY
ISSUED AT 257 PM CDT WED APR 14 2021
FAIRLY UNEVENTFUL WEATHER AT THE START OF THE LONG TERM FORECAST,
WITH THE NEXT CHANCE FOR PRECIPITATION EARLY NEXT WEEK.
TEMPERATURES WILL BE NEAR NORMAL THROUGH THE WEEKEND AND THEN
TREND BELOW NORMAL BY NEXT TUESDAY.
BY 00Z/FRI UPPER LOW WILL BE ACROSS THE EASTERN GREAT LAKES. SOME
LINGERING CLOUDY COVER WILL PERSIST, ESPECIALLY ACROSS EASTERN WI,
BUT EXPECT DECREASING CLOUDS THURSDAY NIGHT INTO FRIDAY MORNING
DUE TO WEAK RIDGING. THIS WEEKEND, MEDIUM RANGE MODELS ARE IN
DECENT AGREEMENT SHOWING TWO DIFFERENT SHORTWAVES TRACK SOUTH OR
WEST OF WI. THIS WILL LIKELY BRING SOME CLOUDS TO THE AREA,
ESPECIALLY ON SATURDAY, BUT PRECIPITATION WILL REMAIN MUCH
FARTHER SOUTH. MODEL TIME SECTIONS SHOW FAIRLY DRY AIR ACROSS THE
AREA BY SUNDAY, WHICH SHOULD BRING A RETURN OF SUNSHINE.
MEANWHILE, TEMPS WILL BE NEAR NORMAL WITH HIGHS IN THE 50S AND
LOWS IN THE MIDDLE 20S TO MIDDLE 30S.
ON MONDAY, POTENT SHORTWAVE AND ASSOCIATED SFC COLD FRONT MOVE
FROM SOUTHERN MANITOBA SOUTH ACROSS WISCONSIN. THIS WILL BRING A
CHANCE FOR RAIN AND SNOW SHOWERS TO THE ENTIRE FORECAST AREA. RAIN
DURING THE DAY, WITH SNOW POSSIBLE EARLY MONDAY MORNING, OR
MONDAY NIGHT INTO TUESDAY MORNING WHEN TEMPERATURES DROP BELOW
FREEZING. AT THIS TIME ANY SNOW ACCUMULATIONS LOOK MINOR. BEHIND
THE COLD FRONT COOLER AIR CAN BE EXPECTED FOR AT LEAST A COUPLE
DAYS, WITH HIGHS ON TUESDAY IN THE 40S AND LOWS WEDNESDAY MORNING
IN THE 20S. A SECONDARY PUSH OF COLD AIR MAY KEEP TEMPS ABOUT 10
DEGREES BELOW NORMAL THROUGH THE WEEK.
AVIATION
FOR 00Z TAF ISSUANCE
ISSUED AT 609 PM CDT WED APR 14 2021
AN UPPER LOW PRESSURE SYSTEM WILL MOVE ACROSS WISCONSIN INTO
MICHIGAN AND PRODUCE CLOUDY SKIES AND SCATTERED SNOW OR RAIN
SHOWERS TONIGHT. MVFR CEILINGS ARE EXPECTED IN MOST PLACES,
THOUGH A PERIOD OF VFR CONDITIONS IS POSSIBLE. SKIES SHOULD CLEAR
THURSDAY AFTERNOON WITH DRIER WEATHER ACROSS THE REGION.
GRB WATCHES/WARNINGS/ADVISORIES
NONE.
SHORT TERM.....RDM
LONG TERM......KLJ
AVIATION.......KURIMSKI
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page