Area Forecast Discussion
Issued by NWS Milwaukee/Sullivan, WI

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FXUS63 KMKX 172018
AFDMKX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
318 PM CDT THU APR 17 2014

.TONIGHT AND FRIDAY..FORECAST CONFIDENCE...HIGH

BASED ON MODEL 925 MB RH...IT LOOKS LIKE CLOUDS MAY HANG ON INTO THE
EVENING AND EARLY NIGHT LONGER THAN ORIGINALLY EXPECTED. THESE
CLOUDS WILL HELP KEEP TEMPS FROM FALLING TOO FAST...THOUGH LESS
CLOUDS AND LIGHT WINDS BY MORNING WILL STILL RESULT IN LOWS IN THE
LOW TO MID 30S.

SKIES WILL BE MOSTLY SUNNY TO PARTLY CLOUDY ON FRIDAY WITH HIGH
PRESSURE OVERHEAD. WARMEST TEMPS ALOFT WILL BE IN THE SOUTHWEST
TOMORROW...WITH HIGHS INTO THE MID 50S EXPECTED. IT WILL BE COOLER
TOWARD THE NORTHEAST...AND ESPECIALLY ALL AREAS NEAR LAKE MICHIGAN
UNDER ONSHORE WINDS.

.FRIDAY NIGHT AND SATURDAY...FORECAST CONFIDENCE IS HIGH.

THE HIGH WILL SLIDE EAST FRIDAY NIGHT WITH A WEAKENING TROF/COLD
FRONT APPROACHING FROM THE NORTHWEST LATER SATURDAY. THIS SHOULD
BE A DRY PERIOD WITH CHILLY TEMPS EXPECTED FRIDAY NIGHT UNDER A
DRY AIRMASS AND LIGHT WINDS. WARM ADVECTION REALLY GETS GOING ON
SATURDAY AS SOUTHERLY WINDS INCREASE AHEAD OF THE APPROACHING
TROF. UNFORTUNATELY...THE FAR EAST NEAR THE LAKE WILL PROBABLY SEE
A SOUTHEAST COMPONENT TO THE WIND HANG IN THRU THE DAY...KEEPING
IT MUCH COOLER NEAR LAKE MICHIGAN...ESPECIALLY UP AROUND THE
SHEBOYGAN AREA. TEMPS WILL LIKELY RANGE FROM THE UPPER 60S
SOUTHWEST OF MADISON...TO THE UPPER 40S IN SHEBOYGAN.

.SATURDAY NIGHT AND SUNDAY...FORECAST CONFIDENCE IS MEDIUM.

THE SFC TROF/COLD FRONT WILL TRY TO DRIFT SOUTH THROUGH THE
FORECAST AREA...BUT THE NEW MODELS ARE TRENDING TOWARD THE TROF
GETTING STUCK OVER THE NRN FCST AREA AND NOT PENETRATING MUCH
FARTHER SOUTH. THE TROF EXTENDS FROM A PARENT LOW THAT MOVES
ACROSS SOUTHERN CANADA...INTO ANOTHER DEVELOPING LOW PRESSURE
SYSTEM OVER THE SOUTHERN PLAINS. AS A RESULT...THERE ISN/T MUCH
OF A SOUTHERN PUSH TO THE FRONT. THIS SHOULD KEEP THE BULK OF ANY
PRECIP LOCATED NORTH OF MILWAUKEE AND MADISON. THE LOW LEVEL
THERMAL RIDGE IS THEREFORE MUCH STRONGER ACROSS THE AREA THAN
PREVIOUSLY THOUGHT SO TEMPS HAVE BEEN RAISED. WE SHOULD SEE
OFFSHORE WINDS ALONG THE LAKE ON SUNDAY...EXCEPT MAYBE THE
SHEBOYGAN...SO MUCH OF THE CWA SHOULD ENJOY A WARM DAY ON SUNDAY.

.SUNDAY NIGHT AND MONDAY...FORECAST CONFIDENCE IS MEDIUM.

THE LOW PRESSURE SYSTEM OVER THE SOUTHERN PLAINS WILL MOVE THROUGH
THE AREA LATE SUNDAY NIGHT AND MONDAY. THE GFS AND THE ECMWF
DIFFER ON STRENGTH OF THE SFC LOW...BUT THEY BOTH SHOW A DECENT
MID LEVEL SHORT WAVE PUSHING THROUGH. SO PRECIP CHANCES ARE PRETTY
HIGH FOR THIS PERIOD. SOUNDINGS STILL LOOK PRETTY STABLE WITH
RESPECT TO CONVECTION...SO NO THUNDER MENTIONED. TEMPS WILL BE
TRICKY ON MONDAY WITH PRECIP/CLOUDS AND AN ONSHORE FLOW KICKING IN
BY AFTERNOON IN THE WAKE OF THE PASSING LOW.

.TUESDAY THROUGH THURSDAY...FORECAST CONFIDENCE IS MEDIUM.

HIGH PRESSURE SHOULD KEEP THINGS DRY FOR TUESDAY WITH HIGHS AWAY
FROM THE LAKE HITTING THE MID 60S. A DECENT ONSHORE FLOW WILL KEEP
LAKE AREA QUITE CHILLY.

STRONG LOW PRESSURE APPROACHES THE AREA LATER WEDNESDAY THROUGH
THURSDAY. SOME LEADING WARM ADVECTION SHOWERS ARE POSSIBLE LATER
WEDNESDAY AFTERNOON AND NIGHT...BUT IT WILL BE STRUGGLE AGAINST
SOME LOW LEVEL DRY AIR. THE MOISTURE ADVECTS IN MUCH BETTER ON
THURSDAY WITH PRECIP CHANCES INCREASING.

&&

.AVIATION/00Z TAFS/...

A FEW LOCATIONS ARE STILL HOLDING ONTO MVFR CIGS...BUT CIGS ARE
GENERALLY EXPECTED TO BE VFR ACROSS THE AREA BY LATE AFTERNOON. VFR
CLOUDS WILL PROBABLY HANG ON INTO THE EVENING...SLOWLY DECREASING
LATE EVENING AND OVERNIGHT AS HIGH PRESSURE APPROACHES. PARTLY
CLOUDY TO MOSTLY SUNNY SKIES ARE EXPECTED FRIDAY.

&&

.MARINE...

WAVES WILL CONTINUE TO SUBSIDE INTO THIS EVENING...WITH FAIRLY QUIET
WEATHER EXPECTED THE NEXT FEW DAYS.

&&

.MKX WATCHES/WARNINGS/ADVISORIES...
WI...NONE.
LM...NONE.
&&

$$

TONIGHT/FRIDAY AND AVIATION/MARINE...DDV
FRIDAY NIGHT THROUGH THURSDAY...DAVIS



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