National Weather Service Weather Forecast Office

PNSLOT
ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
251315-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
808 PM CDT SAT OCT 24 2009 /908 PM EDT SAT OCT 24 2009/

...HERE COMES THE RAIN AGAIN...

IF IT SEEMS LIKE THERE HAVE BEEN A LOT OF DAYS THIS MONTH WITH
PRECIPITATION...THAT IS BECAUSE THERE HAVE BEEN. IN FACT...CHICAGO
HAS HAD MEASURABLE PRECIPITATION ON 14 OF THE FIRST 24 DAYS OF THE
MONTH. IN ROCKFORD...MEASURABLE PRECIPITATION HAS OCCURED 13 OUT
OF THE FIRST 24 DAYS. ALL INDICATIONS ARE THAT WE WILL REMAIN LOCKED
IN AN ACTIVE WEATHER PATTERN...WITH AT LEAST SEVERAL MORE DAYS OF
MEASURABLE PRECIPITATION QUITE LIKELY...AND AT LEAST A CHANCE OF
RAIN ALMOST EVERY DAY FOR THE NEXT WEEK.

THE MOST NUMBER OF DAYS EVER WITH MEASURABLE PRECIPITATION DURING
THE MONTH OF OCTOBER IN CHICAGO IS 19 WHICH OCCURED BACK IN 1883.
FOR ROCKFORD THE MOST NUMBER OF DAYS WITH MEASURABLE PRECIPITATION
IN OCTOBER IS 17...WHICH OCCURED MOST RECENTLY BACK IN 1991 AND
ALSO BACK IN 1919. BOTH OF THESE RECORDS APPEAR TO BE IN JEOPARDY
AS A SEEMINGLY NEVER ENDING PARADE OF WEATHER SYSTEMS MARCHES
ACROSS THE AREA THIS WEEK.

NEITHER CHICAGO NOR ROCKFORD HAVE SECURED SPOTS IN THE TOP 10 FOR
WETTEST OCTOBERS YET...BUT WITH AT LEAST A CHANCE OF SIGNIFICANT
RAINFALL LATER IN THE WEEK IT IS STILL POSSIBLE THIS MONTH COULD
END UP AS ONE OF THE TOP 10 WETTEST AT EITHER STATION.

HERE ARE THE CURRENT TOP 10 WETTEST OCTOBERS...

     CHICAGO

  1   12.06   1954
  2    8.54    2001
  3    8.44    1941
  4    7.36    1991
                    1883
  6    6.89    1881
  7    6.51    1877
  8    6.41    1919
  9    5.37    1955
10    5.22    1998
...
21    4.19   2009*

     ROCKFORD
  1    8.32   1969
  2    7.92   1954
  3    7.39   1985
  4    6.52   1919
  5    6.05   1961
  6    5.93   1984
  7    5.76   1932
  8    5.56   1959
  9    5.46   1941
10    5.21   1917
...
22    4.13   2009*

* = NOTE THAT THIS MONTHS TOTAL IS BEING COMPARED AGAINST THE
    TOTALS FOR THE ENTIRE MONTH...NOT THE MONTH TO DATE TOTALS.

$$

IZZI