NEXLAB Northern Illinois Forecast!

INCLUDING:
THE COLLEGE OF DUPAGE
MULTI COUNTY SKYWARN and
GLEN ELLYN PUBLIC WORKS DEPT.

Tuesday March 5, 2002
1:00pm CST


CRITICAL WEATHER OUTLOOK FOR HEAVY RAIN, SNOW OR SEVERE WEATHER:

CHANCE OF RAIN THURSDAY NIGHT THROUGH SATURDAY MORNING WITH POSSIBLE THUNDERSTORMS FRIDAY NIGHT INTO SATURDAY MORNING.


NORTHEAST ILLINOIS FORECAST: --> LAST UPDATED 03/05/02

TODAY: HIGH IN LOW 30'S WITH WINDS SSE AT 5. MOSTLY CLOUDY WITH CHANCE OF SNOW FLURRIES.

TONIGHT: LOW AROUND 30 WITH WINDS SW AT 5-10 AND MOSTLY CLOUDY.

WEDNESDAY: HIGH IN MID-UPR 30'S AND PARTLY CLOUDY. OVERNIGHT, LOW AROUND 30 AND CLOUDY WITH CHANCE OF LIGHT DRIZZLE/FLURRIES.

THURSDAY: HIGH AROUND 40 AND PARLTY CLOUDY WITH CHANCE OF LIGHT RAIN. OVERNIGHT, LOW IN MID 30'S AND MOSTLY CLOUDY WITH CHANCE OF RAIN.

FRIDAY: HIGH AROUND 50 AND CLOUDY WITH A CHANCE OF RAIN. OVERNIGHT, LOW IN MID 40'S AND CLOUDY WITH CHANCE OF RAIN WITH POSSIBLE THUNDERSTORMS.

SATURDAY: HIGH NEAR 50 AND CLOUDY WITH CHANCE OF RAIN.

NORTHEAST ILLINOIS FORECAST DISCUSSION:

CURRENT SFC ANALYSIS SHOWS A SMALL AREA OF HIGH PRESSURE OVER FOUR CORNERS REGION AND ANOTHER HIGH PRESSURE IN SE CONUS. THERE IS ALSO A VERY ELONGATED LOW FROM ID PANHANDLE STRETCHING SE THRU MT, WY, AND SD. THIS SFC LOW PROGRESSES EWD OVERNIGHT AND IS CENTERED OVER NRN WI EARLY WEDNESDAY WITH A TRAILING CF EXTENDING SW FROM NRN WI THRU CENT NEB. THE SFC HIGH IN THE SE HAS MOVED OFF COAST AND A NEW SFC LOW DEVELOPS OVER OR AND CENT ID. BY WEDNESDAY NIGHT INTO THURSDAY MORNING THE FIRST SFC LOW HAS PROGRESSED TO THE NE WITH A TRAILING CF EXTENDING SW THRU NE US/CANADA BORDER AND THRU NRN IL AND CENT IA. ASSOCIATED WITH THIS CF IS OUR CHANCE FOR RAIN WEDNESDAY NIGHT INTO THURSDAY MORNING. THEN THURSDAY NIGHT INTO FRIDAY MORNING THE SECOND SFC LOW IS CENTERED IN NE WY WITH A WF EXTENDING EWD THRU NRN NEB THRU NRN IL. ASSOCIATED WITH THIS WF IS OUR CHANCE FOR RAIN FOR THURSDAY NIGHT/FRIDAY MORNING. BY FRIDAY NIGHT SFC LOW HAS STRENGTHENED AND CENTERED OVER CENTRAL KS/NEB BORDER. WITH NRN IL BEING IN SW FLOW OUR TEMPS GET MUCH WARMER REACHING LOW 50'S. THEN THROUGHOUT SATURDAY SFC LOW PROGRESSES TO THE NE RIGHT THRU NRN IL WITH A STRONG VORT MAX AT 500mb ALONG IL/IN BORDER PUTTING US IN A CHANCE FOR MORE RAIN AND POSSIBLE THUNDERSTORMS. THEN ONCE WE'RE ON THE BACKSIDE OF THE LOW THE COLDER AIR COMES BACK. HAVE A GOOD WEEK EVERYONE.

-MEL


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