Figure 1: Preliminary Snowfall Map

NWS                                             Winter Storm January 19-20th, 2011

St. Louis, Missouri

Overview:

A band of heavy snow deposited 6 to 12 inches of snow along the Interstate 70 corridor during the overnight of January 19th and the morning of January 20th.  Locations north and south of this band received less snow.  This was especially true across southeast Missouri where only an inch or two of snowfall was observed. 

Snowfall Map:
Winter Storm Image  
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE ST LOUIS MO
1210 PM CST FRI JAN 21 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1000 AM     HEAVY SNOW       1 NW HOLTS SUMMIT       38.66N  92.13W
01/20/2011  M9.5 INCH        CALLAWAY           MO   TRAINED SPOTTER

            STORM TOTAL

1058 AM     SNOW             PALMYRA                 39.80N  91.52W
01/20/2011  M3.7 INCH        MARION             MO   TRAINED SPOTTER

            STORM TOTAL

1152 AM     HEAVY SNOW       ASHLAND                 38.77N  92.26W
01/20/2011  M9.1 INCH        BOONE              MO   TRAINED SPOTTER

            STORM TOTAL

1153 AM     HEAVY SNOW       AUXVASSE                39.02N  91.89W
01/20/2011  M10.0 INCH       CALLAWAY           MO   TRAINED SPOTTER

            STORM TOTAL

1200 PM     HEAVY SNOW       WELDON SPRING           38.72N  90.65W
01/20/2011  M9.2 INCH        ST. CHARLES        MO   NWS EMPLOYEE

            STORM TOTAL...OBSERVATION AT THE NWS OFFICE IN WELDON
            SPRING

1200 PM     HEAVY SNOW       1 N DARDENNE PRAIRIE    38.77N  90.73W
01/20/2011  M9.8 INCH        ST. CHARLES        MO   NWS EMPLOYEE

            STORM TOTAL

1219 PM     SNOW             CHESTERFIELD            38.65N  90.58W
01/20/2011  M8.0 INCH        ST. LOUIS          MO   TRAINED SPOTTER

            STORM TOTAL

1250 PM     HEAVY SNOW       1 SE COTTLEVILLE        38.74N  90.64W
01/20/2011  M9.5 INCH        ST. CHARLES        MO   NWS EMPLOYEE

            STORM TOTAL

1257 PM     HEAVY SNOW       FULTON                  38.85N  91.95W
01/20/2011  M8.5 INCH        CALLAWAY           MO   TRAINED SPOTTER

            STORM TOTAL

0100 PM     HEAVY SNOW       4 NE EASLEY             38.84N  92.33W
01/20/2011  M9.2 INCH        BOONE              MO   TRAINED SPOTTER

            STORM TOTAL

0100 PM     HEAVY SNOW       2 SW BROOKLYN           38.64N  90.19W
01/20/2011  M8.0 INCH        ST. LOUIS CITY     MO   NWS EMPLOYEE

            STORM TOTAL. RETIRED NWS EMPLOYEE.

0101 PM     SNOW             5 SSE BLAND             38.23N  91.58W
01/20/2011  M2.9 INCH        GASCONADE          MO   TRAINED SPOTTER

            STORM TOTAL

0120 PM     SNOW             ROSEBUD                 38.39N  91.40W
01/20/2011  M6.1 INCH        GASCONADE          MO   CO-OP OBSERVER

            STORM TOTAL

0126 PM     SNOW             7 S STEELVILLE          37.87N  91.36W
01/20/2011  M1.5 INCH        CRAWFORD           MO   TRAINED SPOTTER

            STORM TOTAL

0130 PM     HEAVY SNOW       GLEN CARBON             38.76N  89.97W
01/20/2011  M12.0 INCH       MADISON            IL   TRAINED SPOTTER

            STORM TOTAL

0130 PM     SNOW             2 SSW ST. LOUIS         38.60N  90.26W
01/20/2011  M5.0 INCH        ST. LOUIS CITY     MO   TRAINED SPOTTER

            STORM TOTAL

0145 PM     SNOW             2 NE HEMATITE           38.22N  90.45W
01/20/2011  M2.2 INCH        JEFFERSON          MO   TRAINED SPOTTER

            STORM TOTAL

0150 PM     HEAVY SNOW       1 N HARVESTER           38.77N  90.57W
01/20/2011  M9.5 INCH        ST. CHARLES        MO   TRAINED SPOTTER

            STORM TOTAL

0152 PM     SNOW             2 SSE POTOSI            37.91N  90.77W
01/20/2011  M2.0 INCH        WASHINGTON         MO   TRAINED SPOTTER

            STORM TOTAL

0200 PM     HEAVY SNOW       JEFFERSON CITY          38.57N  92.19W
01/20/2011  M8.1 INCH        COLE               MO   TRAINED SPOTTER

            STORM TOTAL

0200 PM     SNOW             RAMSEY                  39.14N  89.11W
01/20/2011  M3.7 INCH        FAYETTE            IL   TRAINED SPOTTER

            STORM TOTAL

0200 PM     SNOW             2 S SMITHTON            38.38N  89.99W
01/20/2011  M3.0 INCH        ST. CLAIR          IL   TRAINED SPOTTER

            STORM TOTAL

0200 PM     SNOW             CEDAR HILL              38.36N  90.64W
01/20/2011  M3.5 INCH        JEFFERSON          MO   TRAINED SPOTTER

            STORM TOTAL

0220 PM     SNOW             2 N O`FALLON            38.81N  90.71W
01/20/2011  M8.3 INCH        ST. CHARLES        MO   TRAINED SPOTTER

            STORM TOTAL

0230 PM     SNOW             HOYLETON                38.45N  89.27W
01/20/2011  M4.0 INCH        WASHINGTON         IL   TRAINED SPOTTER

            STORM TOTAL

0230 PM     SNOW             ELLISVILLE              38.59N  90.59W
01/20/2011  M5.4 INCH        ST. LOUIS          MO   TRAINED SPOTTER

            STORM TOTAL

0239 PM     SNOW             MARISSA                 38.26N  89.75W
01/20/2011  M6.5 INCH        ST. CLAIR          IL   TRAINED SPOTTER

            STORM TOTAL.

0245 PM     SNOW             HILLSBORO               39.16N  89.48W
01/20/2011  M3.5 INCH        MONTGOMERY         IL   TRAINED SPOTTER

            STORM TOTAL

0250 PM     SNOW             RED BUD                 38.21N  90.00W
01/20/2011  M3.5 INCH        RANDOLPH           IL   TRAINED SPOTTER

            STORM TOTAL

0250 PM     HEAVY SNOW       ALTON                   38.90N  90.15W
01/20/2011  M7.5 INCH        MADISON            IL   TRAINED SPOTTER

            STORM TOTAL

0255 PM     SNOW             2 W JERSEYVILLE         39.12N  90.37W
01/20/2011  M4.5 INCH        JERSEY             IL   TRAINED SPOTTER

            STORM TOTAL

0300 PM     SNOW             EDWARDSVILLE            38.80N  89.97W
01/20/2011  M11.5 INCH       MADISON            IL   TRAINED SPOTTER

            STORM TOTAL

0300 PM     SNOW             3 ESE HILLSBORO         38.22N  90.52W
01/20/2011  M1.9 INCH        JEFFERSON          MO   TRAINED SPOTTER

            STORM TOTAL

0327 PM     SNOW             SPARTA                  38.15N  89.72W
01/20/2011  M3.0 INCH        RANDOLPH           IL   TRAINED SPOTTER

            STORM TOTAL.

0332 PM     SNOW             PARIS                   39.48N  92.00W
01/20/2011  M4.0 INCH        MONROE             MO   CO-OP OBSERVER

            STORM TOTAL.

0400 PM     SNOW             OLD MONROE              38.93N  90.75W
01/20/2011  M11.0 INCH       LINCOLN            MO   FIRE DEPT/RESCUE

            STORM TOTAL.

0412 PM     HEAVY SNOW       1 NE ST. JACOB          38.73N  89.76W
01/20/2011  M9.0 INCH        MADISON            IL   TRAINED SPOTTER

            STORM TOTAL

0415 PM     SNOW             MOUNT STERLING          39.98N  90.76W
01/20/2011  M4.0 INCH        BROWN              IL   TRAINED SPOTTER

            STORM TOTAL

0419 PM     SNOW             2 SW FULTON             38.84N  91.97W
01/20/2011  M9.0 INCH        CALLAWAY           MO   TRAINED SPOTTER

            STORM TOTAL.

0428 PM     SNOW             BELLEVILLE              38.53N  90.00W
01/20/2011  M4.0 INCH        ST. CLAIR          IL   TRAINED SPOTTER

            STORM TOTAL.

0527 PM     SNOW             ASHLAND                 38.77N  92.26W
01/20/2011  M8.0 INCH        BOONE              MO   TRAINED SPOTTER

            STORM TOTAL.

0532 PM     SNOW             WOOD RIVER              38.86N  90.08W
01/20/2011  M8.0 INCH        MADISON            IL   TRAINED SPOTTER

            STORM TOTAL.

0551 PM     SNOW             BALLWIN                 38.59N  90.55W
01/20/2011  M6.0 INCH        ST. LOUIS          MO   TRAINED SPOTTER

            STORM TOTAL.

0627 PM     SNOW             4 SE CEDAR HILL         38.32N  90.59W
01/20/2011  M3.0 INCH        JEFFERSON          MO   TRAINED SPOTTER

            STORM TOTAL.


&&
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1157 AM CST THU JAN 20 2011

...STORM TOTAL SNOWFALL FOR ST. LOUIS AND COLUMBIA...

THIS FOLLOWING DATA IS THROUGH NOON ON JANUARY 20TH 2011

KSTL...ST. LOUIS
* 9.6 INCH 24 HOUR SNOWFALL 19-20 JANUARY 2011
* JANUARY 2011 SNOWFALL IS 13.5 INCHES...RANKS 9TH SNOWIEST JANUARY.

KCOU...COLUMBIA
* 8.7 INCH 24 HOUR SNOWFALL 19-20 JANUARY 2011
* THIS SNOWFALL RANKS THIRD IN 24 HOUR SNOWFALL IN JANUARY
* JANUARY 2011 SNOWFALL IS 13.9 INCHES...RANKS 9TH SNOWIEST JANUARY.


ST. LOUIS JANUARY SNOWFALL STATISTICS
-------------------------------------
TOP FIVE 24 HOUR SNOWFALL FOR JANUARY
1.  13.9  30-31  1982
2.  12.0  11-12  1909
3.  11.2  31     1958
4.  10.9  16     1978
5.  10.0  18     1892

TOP TEN SNOWIEST JANUARY
1.  23.9  1977
2.  23.6  1987
3.  22.9  1978
4.  18.4  1979
5.  16.6  1982
6.  14.3  1904
7.  14.2  1909
8.  14.0  1892
9.  13.5  2011**
10. 13.4  1996


COLUMBIA JANUARY SNOWFALL STATISTICS
-------------------------------------
TOP FIVE 24 HOUR SNOWFALL FOR JANUARY
1.  19.7  18-19  1995
2.  10.3  21-22  1958
3.   8.7  19-20  2011**
4.   8.6  9      1987
5.   8.4  21     1958
6.   8.2  8-9    1997

TOP TEN SNOWIEST JANUARY
1.  23.5  1979
2.  21.6  1995
3.  21.2  1987
4.  19.9  1977
5.  15.7  1906
6.  15.2  1997
7.  14.8  1985
8.  14.1  1958
9.  13.9  2011**
10. 12.4  1940

$$
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