AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
811 AM CST SUN FEB 9 2020
UPDATE
ISSUED AT 805 AM CST SUN FEB 9 2020
SATURATION HAS NOT YET RESULTED IN A WIDESPREAD SNOW EVENT, AND
TEMPERATURES ARE IN FACT WARMING ALOFT, QUICKLY. THE SURFACE
WETBULB 32 IS ALREADY FOUND ALONG AN AXIS FROM NEWTON IA, TO
MUSCATINE TO MACOMB. SOUTHWEST OF THIS LINE, WINTER IMPACTS WILL
BE EITHER NON EXISTENT, OR VERY SHORT TERM. FATHER NORTH, ALONG
I-80, WE ARE SEEING NARROW F-GEN BANDS OF MODERATE MIXED SNOW AND
SLEET, WITH SOME RAIN AND DRIZZLE IN BETWEEN. THAT SHOULD
TEMPORARILY SWITCH TO MODERATE TO HEAVY SNOW, AS THE COLUMN COOLS
DUE TO EVAPORATION AND DYNAMIC LIFT. HOWEVER, THE INTENSE WAA WILL
WIN OUT BY LATE MORNING, RESULTING IN A SWITCH TO RAIN AND
DRIZZLE. OUR HEADLINES CERTAINLY REPRESENT THE AREA MOST LIKELY TO
SEE MORE THAN ONE OUR OF ACCUMULATING SNOW IN THIS PROCESS, AND
WILL KEEP THEM IN PLACE UNTIL +32 WETBULB TEMP AND SNOW LIFT
NORTH OF OUR AREA TODAY