Sunday, January 27, 2013

Mesoscale Discussion 15:32:32.5539247

AREAS AFFECTED...NERN IL...NRN IND...SWRN LOWER MI

CONCERNING...FREEZING RAIN

VALID 272131Z - 280130Z

SUMMARY...FREEZING RAIN RATES APPROACHING 0.05 INCH PER HOUR ARE
POSSIBLE OVER THE REGION THROUGH THE LATE AFTERNOON/EARLY EVENING
HOURS. PRECIPITATION IS EXPECTED TO END OR CHANGE OVER TO RAIN BY
MIDNIGHT ACROSS THE AREA.

DISCUSSION...FREEZING RAIN HAS BEEN REPORTED ACROSS ERN IA/SRN
WI/NRN IL DURING THE AFTERNOON AND THIS THREAT IS EXPECTED TO
CONTINUE EWD WITH THE LOW-LEVEL WARM ADVECTION REGIME. RAP-BASED
FORECAST SOUNDINGS ACROSS THE REGION INDICATE THAT A STRONG WARM
NOSE WILL DEVELOP BETWEEN 700 AND 850 MB WHILE MAINTAINING SURFACE
TEMPERATURES AOB FREEZING INTO THE EVENING HOURS. AS THE PROFILE
SATURATES...FREEZING RAIN RATES NEAR 0.05 INCH PER HOUR WITH LOCALLY
HIGHER AMOUNTS WILL BE POSSIBLE.

..JIRAK.. 01/27/2013

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

ATTN...WFO...IWX...GRR...LOT...

LAT...LON 41668705 41818671 41988655 42218640 42488624 42588617
42658586 42608558 42368528 42178512 41778510 41638513
41258548 41148576 40968649 40938715 40968752 41158787
41348815 41478830 41708831 41838827 41998822 42078805
42098786 42088766 41968764 41798759 41668748 41618728
41668705