Winter Storm January 20th 2011

Figure 1: Preliminary Snowfall Map

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:

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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