Cold Air Continues to Funnel in Tonight, Persisting Through Midweek

    A strong cold front has moved through the region, bringing some snow, mainly 0.3-1.0 inch of accumulation.  A more robust lake effect snow will not set up into northwest Indiana.  For more information, see the links below. 

   The cold air will continue through Tuesday Night.  Below is an animation of air masses from a computer model, in six hour time steps, from early this morning through Wednesday night.

Temperature Forecast


Impressive Cold Air For Early November

 
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
801 PM CST SAT NOV 9 2013 /901 PM EST SAT NOV 9 2013/

...COLDEST EARLY NOVEMBER TEMPERATURES SINCE 1996 LIKELY TUESDAY...

A POWERFUL COLD FRONT WILL MOVE THROUGH THE AREA ON MONDAY AND
USHER IN AN AIR MASS WITH A NORTHERN CANADA ORIGIN FOR MIDWEEK.
HIGH TEMPERATURES ON TUESDAY ARE FORECAST TO BE ONLY IN THE LOWER
30S ACROSS THE FORECAST AREA...WITH 30 IN ROCKFORD AND 32 IN
CHICAGO. FOR THE FIRST HALF OF NOVEMBER STANDARDS...THAT IS CHILLY
AIR!

IF THE FORECAST HIGH TEMPERATURES FOR TUESDAY WERE TO PAN
OUT...THESE WOULD BE THE COOLEST HIGHS IN THE FIRST HALF OF
NOVEMBER...OR EARLIER IN THE SEASON...SINCE 1996 FOR BOTH
ROCKFORD AND CHICAGO.

THAT COLD AIR OUTBREAK OF 1996 ON THE SAME WEEK...VETERANS DAY
WEEK...WAS OF A MUCH LONGER DURATION THAN WILL BE THIS UPCOMING
ONE. THAT EPISODE BROUGHT BOTH CHICAGO AND ROCKFORD FIVE
CONSECUTIVE DAYS OF HIGHS 33 OR COLDER FROM NOVEMBER 10TH-14TH.
ROCKFORD GOT AS COLD AS 10 AT NIGHT AND CHICAGO DROPPED TO 17.

FOR MORE OF A PERSPECTIVE...SPECIFICALLY LOOKING AT
ROCKFORD...HIGHS OF 30 OR LOWER DURING THE FIRST HALF OF NOVEMBER
HAVE OCCURRED ON LESS THAN THREE PERCENT OF ALL THE DAYS IN THE 107
YEAR PERIOD OF RECORD...SO QUITE RARE.

LOW TEMPERATURES FOR MONDAY AND TUESDAY NIGHTS ARE FORECAST IN
THE MID TO UPPER TEENS IN OUTLYING AREAS...TO THE LOWER TO MID 20S
INTO CHICAGO. THESE WOULD BE THE COOLEST NIGHTTIME LOWS BEFORE THE
MIDPOINT OF NOVEMBER SINCE NOVEMBER 3RD 2006 WHEN 16 WAS OBSERVED
IN ROCKFORD AND 21 IN CHICAGO.

TEMPERATURES LOOK TO MODERATE BACK GRADUALLY THROUGH THE 40S FROM
THURSDAY THROUGH SATURDAY...SO OVERALL JUST A BRIEF COLD SNAP BUT
A FAIRLY SIGNIFICANT ONE FOR THIS EARLY IN THE MONTH!

$$

MTF

 Using Analogs

Analogs 


Snowfall Links



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