054  
FXUS63 KGRB 121107  
AFDGRB  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE GREEN BAY WI  
607 AM CDT THU JUN 12 2025  
 
UPDATED AVIATION PORTION FOR 12Z TAF ISSUANCE  
   
KEY MESSAGES  
 
- SMOKE FROM THE CANADIAN WILDFIRES COULD REACH THE SURFACE AT  
TIMES TODAY, WHICH MAY IMPACT AIR QUALITY.  
 
- MAJORITY OF SHOWERS STAY SOUTH AND WEST TODAY, THEN SHOWERS AND  
SOME STORMS LIKELY TONIGHT THROUGH FRIDAY NIGHT. SEVERE WEATHER  
RISK LOOKS LOW. HEAVY RAIN IS POSSIBLE, ESPECIALLY OVER NORTHERN  
WI. PROBABILITY OF OVER 1 INCH OF RAIN IS 20-40 PERCENT, WHILE  
PROBABILITY OF OVER 2 INCHES OF RAIN IS NOW LESS THAN 10  
PERCENT. RAIN TAPERS OFF LATE FRIDAY NIGHT INTO SATURDAY.  
 
- ACTIVE AGAIN NEXT WEEK WITH CHANCES OF SHOWERS AND STORMS.  
 
 
   
DISCUSSION  
 
ISSUED AT 334 AM CDT THU JUN 12 2025  
 
A SURFACE FRONT WILL STAY WELL TO THE SOUTH TODAY, WHICH SHOULD  
KEEP MOST OF THE SHOWERS TO THE SOUTH AND WEST OF THE AREA. SOME  
ACTIVITY MAY DRIFT ACROSS THE SOUTHERN PORTION OF THE CWA IN THE  
VICINITY OF THE 850 MB WARM FRONT. OTHERWISE, MOSTLY SUNNY SKIES  
ARE EXPECTED TODAY WITH SOME WILDFIRE SMOKE MAKING IT TO THE  
SURFACE AT TIMES, ESPECIALLY THIS MORNING. THE SMOKE WILL CAUSE  
SOME HAZE AND VISIBILITY RESTRICTIONS, AS WELL AS AIR QUALITY  
CONCERNS WITH AN AIR QUALITY ADVISORY IN EFFECT UNTIL NOON. HIGHS  
TODAY WILL BE LOWER WITH THE SURFACE FRONT TO THE SOUTH, WITH  
LOWER 70S EXPECTED AWAY FROM THE LAKE AND 60S EXPECTED NEAR LAKE  
MICHIGAN.  
 
THE WARM FRONT WILL LIFT NORTH TONIGHT, AS A SERIES OF SHORTWAVES  
BRINGS SEVERAL ROUNDS OF SHOWERS AND THUNDERSTORMS TO THE AREA  
TONIGHT INTO FRIDAY. THE BEST CHANCE (80-90 PERCENT) WILL BE  
ACROSS NORTHERN WISCONSIN LATE TONIGHT INTO FRIDAY MORNING. THE  
HIGHEST QPF AMOUNTS HAVE SHIFTED A BIT OUT OF OUR AREA AS THE  
CHANCE FOR 1 INCH OR MORE DURING THIS PERIOD FALLING TO 20-40  
PERCENT AND THE CHANCE FOR 2 INCHES OR MORE LESS THAN 10 PERCENT.  
THEREFORE, THE THREAT FOR FLOODING APPEARS TO BE LOWER WITH THIS  
SET OF MODEL RUNS.  
 
SHOWERS AND THUNDERSTORMS WILL CONTINUE FRIDAY NIGHT INTO SATURDAY  
AS THE 850 MB FRONT REMAINS ACROSS THE REGION. HOWEVER, WITH THE  
MAIN MID LEVEL TROUGH WELL TO THE SOUTH THE HEAVIEST RAIN SHOULD  
BE OVER BY THIS PERIOD OF THE FORECAST PERIOD. THE FORECAST DRIES  
OUT A BIT FOR THE SECOND PART OF THE WEEKEND INTO THE VERY EARLY  
PART OF NEXT WEEK. THE PATTERN THEN FLATTENS OUT WITH A PARADE OF  
MID LEVEL SHORTWAVES BRINGING A RETURN TO AN ACTIVE PATTERN  
STARTING LATE MONDAY AND LASTING THROUGH THE MIDDLE PART OF NEXT  
WEEK.  
 
TEMPERATURES WILL STAY ON THE COOL SIDE OF NORMAL THROUGH THE  
WEEKEND, WITH A RETURN TO HIGHER THAN NORMAL TEMPERATURES AND  
HUMIDITY EXPECTED NEXT WEEK.  
 
 
   
AVIATION  
FOR 12Z TAF ISSUANCE  
ISSUED AT 607 AM CDT THU JUN 12 2025  
 
DRY CONDITIONS AND SOME HIGH CLOUDS WERE NOTED ACROSS THE REGION  
EARLY THIS MORNING ALONG WITH SOME SURFACE VISIBILITY RESTRICTIONS  
DUE TO CANADIAN WILDFIRE SMOKE. THE SURFACE SMOKE SHOULD DRIFT TO  
THE SOUTHWEST BY THIS AFTERNOON.  
 
AS A WARM FRONT LIFTS INTO THE AREA, THE CHANCE OF SHOWERS WILL  
INCREASE ONCE AGAIN AFTER 23Z. CHANCES OF THUNDERSTORMS RANGE  
FROM 20-30% FROM 23Z TO 09Z FRI.  
 
LIGHT SURFACE WINDS THIS MORNING WILL INCREASE FROM THE EAST BY  
MIDDAY, ESPECIALLY CLOSER TO THE LAKE AT MTW. WINDS WILL THEN  
BECOME LIGHT THIS EVENING.  
 
 
   
GRB WATCHES/WARNINGS/ADVISORIES  
 
NONE.  
 
 
 
 
 
DISCUSSION.....KURIMSKI  
AVIATION.......KURIMSKI  
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