board's asleep but our first fluff maker is in bound:
948 AM CST
SNOW HAS EXPANDED FROM NEBRASKA AND INTO IOWA THIS MORNING.
REPORTS ACROSS NEBRASKA HAVE RANGED FROM 1.5 TO 4 INCHES.
TRAJECTORIES FROM THE HEAVIER SNOW AXIS SHOW THE SNOW WOULD LAST
LONGER ALONG AND SOUTH OF I-80, BUT AREAS NORTH TO I-88 WILL GET
IN ON THE LIGHT FLUFFY SNOW TOO. THE MORNING SOUNDING FROM OMAHA,
NE HAS LAPSE RATES OF 8.5 DEG/KM IN THE 600-400 MB LAYER, AND THIS
COUPLED WITH A NICE SLOPING FRONTOGENETICAL LAYER AND MODEST
HEIGHT FALLS WILL ALLOW THIS SNOW SHIELD TO SPREAD INTO OUR AREA
WITH EARNEST THIS AFTERNOON. WHILE THE MAIN FORCING IS ABOVE THE
PRIME SNOW PRODUCTION LAYER, IT WILL STILL BE RATHER DRY AND
FLUFFY, AND WITH 0.1-0.18" OF QPF REPORTED UPSTREAM AND EXPECTED
LOCALLY, SNOW NUMBERS OF 1.5-4" ACROSS THE AREA SEEM ON TRACK.
ALSO, THERE IS AN EXTENSIVE AREA OF 1/2SM TO 3/4SM VISIBILITIES
ACROSS IOWA. WE DO NOT PLAN ANY CHANGES TO THE HEADLINES THIS
MORNING AS THE SNOW WILL QUICKLY STICK TO ROADWAYS THIS AFTERNOON
AND VISIBILITY WILL QUICKLY FALL. WINDS WILL NOT BE AS STRONG AS
IN DAYS PAST, BUT 10-20 MPH WILL CAUSE ADDITIONAL DRIFTING OF THIS
DRY SNOW, ESPECIALLY ACROSS RURAL AREAS. CAUTION IS URGED TODAY
AS CONDITIONS WILL BECOME HAZARDOUS AGAIN. -per LOT AFD update