Thursday, February 7, 2013

Mesoscale Discussion 05:57:34.2123946

AREAS AFFECTED...NERN IL...SERN WI

CONCERNING...FREEZING RAIN

VALID 071157Z - 071600Z

SUMMARY...FREEZING RAIN IS EXPECTED TO CONTINUE FOR THE NEXT FEW
HOURS WITH ACCUMULATIONS GREATER THAN 0.05 INCH POSSIBLE.

DISCUSSION...SURFACE OBSERVATIONS REVEAL THE LIGHT RAIN MOVING INTO
NERN IL IS TRANSITIONING TO FREEZING RAIN. SURFACE TEMPERATURES
ACROSS THE AREA ARE RIGHT AT 32 DEG F WITH DEWPOINTS AROUND 30 DEG
F. AS A RESULT...ANY WET-BULB EFFECTS WOULD BE VERY MODEST WITH
TEMPERATURES REMAINING NEAR FREEZING. MOST MODEL GUIDANCE KEEPS
SURFACE TEMPERATURES NEAR FREEZING WHILE COOLING THE MID-LEVELS AS A
SHORTWAVE TROUGH MOVES THROUGH. THIS WILL LIKELY RESULT IN A
TRANSITION TO SNOW LATE THIS MORNING. BEFORE THIS TRANSITION...A FEW
HOURS OF LIGHT FREEZING RAIN IS EXPECTED WITH ACCUMULATIONS OF
GREATER THAN 0.05 INCH POSSIBLE.

..MOSIER.. 02/07/2013

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...LOT...MKX...

LAT...LON 42588931 42888951 43288957 43458925 43708847 43508785
42628781 42088768 41458751 40968794 41788869 42588931