Area Forecast Discussion
Issued by NWS Green Bay, WI

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000
FXUS63 KGRB 272302
AFDGRB

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
502 PM CST THU NOV 27 2014

UPDATED AVIATION PORTION FOR 00Z TAF ISSUANCE

.SHORT TERM...TONIGHT...FRIDAY...AND FRIDAY NIGHT
ISSUED AT 223 PM CST THU NOV 27 2014

LAKE EFFECT CLOUDS GRADUALLY DIMINISHING THIS AFTERNOON ACROSS
VILAS COUNTY AS LOW-LEVEL WINDS DIMINISH AND BACK. MAINLY CLEAR
EARLY THIS EVENING AHEAD OF THE NEXT SYSTEM. TEMPS WILL QUICKLY
FALL AFTER SUNSET WITH LOWS OCCURRING BY AROUND MIDNIGHT.

APPROACHING WARM FRONT AND ASSOCIATED WARM AIR ADVECTION PATTERN
WILL SET STAGE FOR LIGHT SNOW EVENT ON FRIDAY. 28/12Z MODELS ARE
IN GENERAL AGREEMENT ON EVENT. HAVE SPED UP SNOW ONSET A BIT...BUT
STILL EXPECTING A GENERAL 2 INCH SNOWFALL ACROSS MUCH OF FORECAST
AREA.

MODERATION IN TEMPS INTO SATURDAY.

.LONG TERM...SATURDAY THROUGH THURSDAY
ISSUED AT 223 PM CST THU NOV 27 2014

DRIER AIR WILL WORK IN TO WISC ON A LIGHT SOUTHWEST FLOW ON
SATURDAY AND BRING A FEW BREAKS IN THE CLOUDS AND MILDER
TEMPERATURES. THE WARM UP WILL BE SHORT-LIVED AS A COLD FRONT
MOVES THROUGH WISC OVERNIGHT SATURDAY NIGHT-SUNDAY MORN. THEN A
BROAD SURFACE RIDGE WILL EXPAND FROM WEST TO EAST ACROSS THE GREAT
LAKES ON MONDAY AND BRING COLDER-THAN-NORMAL TEMPERATURES STARTING
SUNDAY NIGHT. CLEARING SKIES ON MONDAY NIGHT WILL PERMIT TEMPS TO
DROP TO ZERO OR BELOW...WITH LOW-MID TEENS NEAR LAKE MICHIGAN.
AFTER THAT...THE HIGH PRESSURE RIDGE AXIS WILL MOVE EAST OF WISC
AND PRODUCE SOUTH WINDS AND MODERATING TEMPS FOR TUESDAY. THEN A
LARGE UPPER LEVEL TROUGH AMPLIFIES OVER THE CENTRAL U.S. EARLY
WEDNESDAY WITH THE SLIGHT POSSIBILITY FOR A DISTURBANCE TO SWEEP
QUICKLY THROUGH THE WESTERN GREAT LAKES.
&&

.AVIATION...FOR 00Z TAF ISSUANCE
ISSUED AT 502 PM CST THU NOV 27 2014

VFR CONDITIONS TO PREVAIL TONIGHT. CIGS AND VSBYS WILL
LOWER TO MVFR CONDITIONS FOR FRIDAY AS LIGHT SNOW DEVELOPS AHEAD
OF AN APPROACHING WARMING FRONT. SNOW IS EXPECTED TO REACH CENTRAL
AND NORTH CENTRAL WISCONSIN BETWEEN 5 AM AND 7 AM...AND BETWEEN 7
AM AND 9 AM OVER EASTERN WISCONSIN.
&&

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

$$

SHORT TERM.....JKL
LONG TERM......ML
AVIATION.......TDH






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