AREA FORECAST DISCUSSION
NWS GREEN BAY WI
AFDGRB 300 AM CST SAT FEB 3 2001
VORT MAX MOVING THROUGH SRN WI AND NRN IL PRODUCING LIGHT SNOW AND
FLURRIES ACROSS THE SWRN HALF OF STATE THIS MORNING. THIS SYSTEM EXITS
EARLY TODAY AS ANOTHER STRONGER ONE DIVES SOUTHEAST ACROSS THE PLAINS
THIS AFTERNOON AND TONIGHT. THIS SHOULD PRODUCE AN UPPER LOW OVER IL BY
SUNDAY MORNING ACCORDING TO THE MODELS. WARM AIR ADVECTION WILL CONTINUE
TODAY THROUGH TONIGHT...AND PRODUCE STEEP INVERSION AND LOW CLOUD DECK
ACROSS THE AREA TODAY. THIS STRONG INVERSION VERY VISIBLE ON ACARS
SOUNDING FROM MSP AT 0510UTC WITH 900MB TEMPS AROUND -18C AND 800MB
TEMPS OF -7C. THESE CLOUDS ARE MOVING INTO THE WESTERN PORTION OF THE
FORECAST AREA AT PRESENT...AND SHOULD KEEP HIGH TEMPS LOWER THAN WHAT WE
WOULD NORMALLY GET WITH SUCH STRONG WARMING IN THE BOUNDARY LAYER. THERE
SHOULD ALSO BE SOME FLURRIES FROM THIS CLOUD DECK AS WELL. LOW CLOUDS
WILL GET SEEDED FROM ABOVE LATE IN THE DAY AS UPPER SYSTEM FROM THE WEST
NEARS...AND LIGHT SNOW LOOKS LIKELY ACROSS THE SRN HALF OF THE FCST AREA
LATE THIS AFTERNOON OR THIS EVENING THROUGH SUNDAY. NRN EDGE OF SNOW
WILL BE TRICKY TO FORECAST...SO WILL TAPER PROBABILITIES OF SNOW FROM
SOUTH TO NORTH.
.GRB...NONE.
RDM
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