Area Forecast Discussion
Issued by NWS Green Bay, WI

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000
FXUS63 KGRB 010033
AFDGRB

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
733 PM CDT SUN MAY 31 2015

UPDATED AVIATION PORTION FOR 00Z TAF ISSUANCE

.SHORT TERM...TONIGHT AND MONDAY
ISSUED AT 221 PM CDT SUN MAY 31 2015

MAIN CONCERN FOR TONIGHT WILL BE THE POTENTIAL FOR A FROST OR
FREEZE ACROSS THE NORTH. A BAND OF HIGH CLOUDS WILL MOVE ACROSS
THE REGION THIS EVENING INTO EARLY MONDAY. THE CLOUDS MAY HOLD
TEMPERATURES UP A LITTLE THIS EVENING...BUT MAINLY CLEAR SKIES
AND LIGHT WINDS SHOULD ALLOW TEMPERATURES TO FALL AFTER MIDNIGHT.
ANOTHER CONCERN IS THE SHORT NIGHTS TO ALLOW FOR TEMPERATURES TO
FALL. HAVE GONE WITH A FREEZE WARNING FOR VILAS...FLORENCE...
FOREST AND NORTHERN MARINETTE COUNTIES. A FROST ADVISORY IS IN
EFFECT FOR THE REMAINDER OF NORTH-CENTRAL AND NORTHEAST WISCONSIN
NORTH OF A MERRILL TO ANTIGO TO KESHENA TO OCONTO LINE. TO THE
SOUTH...THERE MAY BE SOME PATCHY FROST IN THE TYPICAL COLD SPOTS.

MOSTLY SUNNY SKIES WITH HIGH TEMPERATURES IN THE 60S TO NEAR 70
ARE EXPECTED WITH LOW RELATIVE HUMIDITY READINGS DURING THE
AFTERNOON.

.LONG TERM...MONDAY NIGHT THROUGH SUNDAY
ISSUED AT 221 PM CDT SUN MAY 31 2015

HIGH PRESSURE WILL BE IN CONTROL OF THE WEATHER FOR THE EARLY PART
OF THE EXTENDED...KEEPING THE WEATHER DRY ACROSS THE WESTERN GREAT
LAKES. THE MAIN ISSUE IS A SLOWLY MOVING WEAK COLD FRONT THAT
TRACKS EASTWARD TOWARDS THE GREAT LAKES DURING THE MIDDLE TO LATE
PART OF THE WEEK. THE FRONT WILL BE RUNNING INTO A FAIRLY STRONG
HIGH PRESSURE SYSTEM...MAKING THE BATTLE BETWEEN THE APPROACHING
FRONT AND THE HIGH A GRADUAL ONE...WITH PRECIPITATION CHANCES
SLOWLY INCREASING FROM WEST TO EAST FROM WEDNESDAY AFTERNOON
THROUGH FRIDAY AS THE RIDGE RETREATS TO THE EAST. ALTHOUGH THE
FORECAST REGARDING THIS SYSTEM HAS BEEN TENUOUS AT BEST...THERE
APPEARS TO BE MORE CONSENSUS BETWEEN THE NWP MODELS THIS RUN. AS
THE FRONT SLOWLY SINKS SOUTH SEVERAL MID LEVEL SHORTWAVES WILL
TRACK ALONG THE FRONT...BRINGING SEVERAL ROUNDS OF SHOWERS AND
THUNDERSTORMS TO THE WESTERN GREAT LAKES REGION.

THE SLOWLY RETREATING HIGH WILL ALLOW TEMPERATURES TO EVENTUALLY
RISE ABOVE NORMAL BY THE MIDDLE PART OF THE WEEK. BEHIND THE
AFOREMENTIONED COLD FRONT TEMPERATURES ARE NOT EXPECTED TO DROP
OFF MUCH...AS THE PUSH OF COLD AIR IS NOT REALLY THAT IMPRESSIVE.

HIGH PRESSURE WILL BUILD IN BEHIND THE COLD FRONT DURING THE EARLY
PART OF NEXT WEEKEND. HOWEVER ANOTHER LOW PRESSURE SYSTEM IS
FORECAST TO DEVELOP ACROSS SOUTHERN CANADA...TRACKING EAST TOWARDS
THE WESTERN GREAT LAKES BY LATE SUNDAY. THERE ARE DIFFERENCES
REGARDING THE STRENGTH OF THIS LOW...HOWEVER THERE SEEMS TO BE A
CONSENSUS IN BRINGING BACK APPRECIABLE POPS BY SUNDAY.
&&

.AVIATION...FOR 00Z TAF ISSUANCE
ISSUED AT 733 PM CDT SUN MAY 31 2015

GOOD FLYING WEATHER EXPECTED TONIGHT WITH SOME MIDDLE
AND HIGH CLOUDS. VFR SHOULD CONTINUE AT LEAST THROUGH TUESDAY.



RDM.
&&

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

$$

SHORT TERM.....ECKBERG
LONG TERM......KURIMSKI
AVIATION.......RDM



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