Area Forecast Discussion
Issued by NWS Green Bay, WI

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FXUS63 KGRB 271801
AFDGRB

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
101 PM CDT MON JUL 27 2015

UPDATED AVIATION PORTION FOR 18Z TAF ISSUANCE

.SHORT TERM...TODAY...TONIGHT...AND TUESDAY
ISSUED AT 354 AM CDT MON JUL 27 2015

ANOTHER VERY WARM BUT DRY DAY EXPECTED TODAY WITH HIGHS 5 TO 8
DEGREES ABOVE THE TYPICAL MID SUMMER DAY. THE SURFCE HIGH MOVES
ONLY SLOWLY TO THE EAST TODAY AND TONIGHT AS UPPER RIDGE BUILDS
ACROSS WISCONSIN. THIS SHOULD RESULT IN MAINLY CLEAR SKIES WITH
LIGHT WINDS.

THE SURFACE HIGH SHOULD BE NEAR ENOUGH TO EXERT INFLUENCE
TONIGHT...SO LIGHT WINDS AND CLEAR SKIES EXPECTED. SOME GROUND
FOG IS POSSIBLE TOWARDS DAYBREAK.

WARMER AND MORE HUMID WEATHER EXPECTED TUESDAY AHEAD OF A COLD
FRONT THAT WILL NOT REACH OUR FORECAST AREA UNTIL AFTER SUNSET.
SOME SHOWERS AND THUNDERSTORMS OUT AHEAD OF IT MAY ARRIVE DURING
THE AFTERNOON...ESPECIALLY IN CENTRAL AND NORTHCENTRAL PARTS OF
THE STATE. HIGHS WILL DEPEND ON HOW QUICKLY CLOUD COVER ARRIVES.

.LONG TERM...TUESDAY NIGHT THROUGH SUNDAY
ISSUED AT 354 AM CDT MON JUL 27 2015

MODELS ARE IN DECENT AGREEMENT ON BRINGING THE FRONT THROUGH
WISCONSIN ON WEDNESDAY MORNING. ASSOCIATED SHOWERS AND
THUNDERSTORMS ARE EXPECTED TO END IN NORTHEAST WISCONSIN ON
WEDNESDAY MORNING. BEHIND THE FRONT...COOLER AND DRIER AIR
WILL FOLLOW IN QUICKLY. AN UPPER LEVEL LONGWAVE TROUGH WILL THEN
SETTLE IN OVER HUDSON BAY...REMAINING LARGELY STATIONARY WELL
INTO NEXT WEEK. THIS PATTERN WILL PRODUCE NORTHWEST FLOW ALOFT
OVER WISCONSIN AND HOLD TEMPERATURES DOWN. FROM WEDNESDAY THRU
SUNDAY...HIGH TEMPERATURES WILL GENERALLY BE IN THE LOW TO MID 80S
WITH LOW TEMPERATURES GENERALLY IN THE LOW 60S. CHANCES FOR
PRECIPITATION CREEP BACK INTO THE FORECAST BY NEXT WEEKEND AS THE
NORTHWEST FLOW CARRIES WEAK IMPULSES INTO THE WESTERN GREAT LAKES
REGION.
&&

.AVIATION...FOR 18Z TAF ISSUANCE
ISSUED AT 101 PM CDT MON JUL 27 2015

THE PREVAILING FLIGHT CATEGORY SHOULD REMAIN VFR THROUGH 18Z
TUESDAY. SURFACE HIGH PRESSURE AND AN UPPER LEVEL RIDGE OVER
WISCONSIN SHOULD KEEP CONDITIONS UNEVENTFUL TODAY AND AT LEAST
THROUGH ABOUT 10Z TUESDAY. PATCHY GROUND FOG COULD DEVELOP AGAIN
BUT ONLY EXPECT MVFR VSBYS AT TIMES AROUND SUNRISE. MIDDLE AND
HIGH CLOUDS SHOULD INCREASE LATER TONIGHT THROUGH TUESDAY MORNING
AS AN UPPER LEVEL SHORT WAVE AND SURFACE COLD FRONT APPROACH THE
FORECAST AREA. SOME SHOWERS AND THUNDERSTORMS MAY REACH CENTRAL
AND NORTH CENTRAL WISCONSIN TUESDAY MORNING WITH OCCASIONAL
MVFR...AND ISOLATED IFR...CIGS AND VSBYS.
&&

.GRB WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

SHORT TERM.....RDM
LONG TERM......ML
AVIATION.......MG



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