885
FXUS63 KGRB 191745
AFDGRB
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
1245 PM CDT TUE AUG 19 2025
UPDATED AVIATION PORTION FOR 18Z TAF ISSUANCE
KEY MESSAGES
- ISOLATED SHOWERS ARE POSSIBLE TODAY, WITH SHOWERS POSSIBLE ALONG
THE LAKESHORE TONIGHT AND WEDNESDAY. THE REST OF THE WEEK WILL
BE DRY WITH THE NEXT CHANCE FOR SHOWERS AND THUNDERSTORMS FRIDAY
INTO FRIDAY NIGHT.
- TEMPERATURES WILL BE AROUND NORMAL FOR MUCH OF THE UPCOMING
WEEK, WITH THE POTENTIAL FOR WELL BELOW NORMAL TEMPERATURES LATE
IN THE WEEKEND INTO EARLY NEXT WEEK.
DISCUSSION
ISSUED AT 230 AM CDT TUE AUG 19 2025
PATCHY FOG THIS MORNING WILL DISSIPATE SHORTLY AFTER SUNRISE.
CYCLONIC FLOW AND WEAK COLD AIR ADVECTION COULD KEEP SOME DRIZZLE
OR LIGHT SHOWERS AT TIMES ACROSS NORTHERN WISCONSIN FOR MUCH OF
THE DAY. A WEAK MID LEVEL SHORTWAVE COULD PRODUCE SOME ISOLATED
SHOWERS THIS AFTERNOON DURING PEAK HEATING ACROSS THE REST OF THE
REGION. AN AREA OF CONVERGENCE ALONG THE LAKESHORE THIS EVENING
COULD PRODUCE CONTINUED LIGHT SHOWERS ACROSS EAST-CENTRAL AND
NORTHEAST WISCONSIN. THIS AREA OF CONVERGENCE WILL REDEVELOP LATE
TONIGHT INTO WEDNESDAY, WITH LIGHT SHOWERS POSSIBLE NEAR THE
LAKESHORE.
HIGH PRESSURE WILL THEN BUILD IN ACROSS THE REGION WEDNESDAY
NIGHT, KEEPING THE REGION DRY THROUGH THURSDAY NIGHT. A COLD FRONT
WILL BRING A CHANCE FOR SHOWERS AND THUNDERSTORMS TO THE REGION
FRIDAY AND FRIDAY NIGHT. HIGH PRESSURE BUILDING IN BEHIND THE
DEPARTING COLD FRONT WILL BRING ANOTHER DRY PERIOD TO THE REGION
NEXT WEEKEND INTO EARLY NEXT WEEK.
TEMPERATURES WILL BE AROUND NORMAL FOR THIS TIME OF YEAR THROUGH
MUCH OF THE UPCOMING WEEK, WITH THE POSSIBILITY OF WELL BELOW
NORMAL TEMPERATURES (10 DEGREES BELOW NORMAL) ON THE BACK END OF
THE WEEKEND AND INTO EARLY NEXT WEEK.
AVIATION
FOR 18Z TAF ISSUANCE
ISSUED AT 1244 PM CDT TUE AUG 19 2025
CEILINGS ARE GRUDGINGLY LIFTING TO MAINLY MVFR. EXPECT ADDITIONAL
IMPROVEMENT TO LOWER VFR BY LATE AFTERNOON. A FEW SHOWERS MAY OCCUR
AT RHI INTO EARLY EVENING. LATER TONIGHT, ANOTHER ROUND OF LOW CIGS
ARE EXPECTED, WITH LIFR-IFR CATEGORY CENTRAL TO NORTH-CENTRAL AND
MVFR ELSEWHERE. FOG EXPECTED WITH IFR-MVFR VSBY CENTRAL TO NORTH-
CENTRAL WI, WITH VSBY AS LOW AS LIFR OVER NORTH-CENTRAL (RHI). ON
WEDNESDAY, EVEN ONCE THE FOG LIFTS, EXPECT LOW CIGS TO PERSIST
THROUGH THE REST OF TAF PERIOD. A FEW SHOWERS COULD OCCUR ON WED
MORNING AT MTW.
GRB WATCHES/WARNINGS/ADVISORIES
NONE.
DISCUSSION.....KURIMSKI
AVIATION.......JLA
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page