Figure 1: Snowfall Map

NWS
St. Louis, Missouri

February 23rd 2003 
Winter Storm

Overview:

A fast moving weather disturbance rolled east out of the southwestern U.S. toward the Mid Mississippi Valley on the afternoon and evening of February 23, 2003.  It had just enough strength to pull high level moisture from the Pacific region into the Southern Plains.  The system generated a surface low over western Oklahoma, which promoted an additional influx of moisture from the Gulf of Mexico northward.  This resulted in a swath of heavy snow along the Kansas/Oklahoma border, east through southern Missouri and southern Illinois.  As the system moved east from Oklahoma into Kentucky, it slowly lost it's strength.  Snowfall amounts diminished from 10 to 15 inches along the Kansas/Oklahoma line to totals near 12 inches in southwest Missouri, to amounts ranging from 4 to 8 inches over southeast Missouri and parts of southwest Illinois.  Amounts dropped off drastically further north and east. 

Winter Storm Image

       Snowfall Map

ID     STATION                HI / LO  /PRECIP  /  SF  / SD

STL  :  ST. LOUIS          :  33 / 21  / 0.20   /  4.1 / 4

NORTHEAST MISSOURI...

CANM7:  CANTON L/D20       :  27 / 11  / 0.04   /  0.5 / 1
EDNM7:  EDINA              :     /     / 0.09   /  1.2 / 1
HNNM7:  HANNIBAL MO        :  29 /  9  / 0.11   /  2.0 / 2
LUSM7:  LOUISIANA          :     /     / 0.11   /  1.4 / 1
NLDM7:  NEW LONDON         :     /     / 0.07   /  2.2 / 2
NVTM7:  NOVELTY 1E         :     /     / 0.05   /  2.2 / 2
PMYM7:  PALMYRA            :     /     / 0.08   /  1.0 / 1
SLBM7:  SHELBINA           :     /     / 0.04   /  0.9 / 1
TAYM7:  TAYLOR 5SW         :     /     /        /  1.2 / 1
VNDM7:  VANDALIA           :  29 /  9  / 0.12   /  1.8 / 2

IN CENTRAL MISSOURI...

UMCM7:  COLUMBIA  U OF M   :     /     / 0.17   /  3.1 / 3
FREM7:  FREEDOM            :     /     / 0.30   /  3.5 / 4
FTNM7:  FULTON             :  29 /  9  / 0.19   /  3.4 / 3
JWPM7:  JEFFERSON CITY     :  30 / 13  / 0.26   /  3.0 / 3
RIFM7:  RICH FOUNTAIN 3E   :     /     / 0.28   /  2.9 / 3

EAST CENTRAL MISSOURI...

FARM7:  FARMINGTON         :  32 / 27  / 0.40   /  6.5 / 7
PTSM7:  POTOSI 5SW         :  30 / 17  / 0.30   /  6.0 / 6
RSEM7:  ROSEBUD            :  30 / 15  / 0.32   /  3.9 / 4
UNNM7:  UNION              :     /     / 0.35   /  4.5 / 5
WHGM7:  WASHINGTON         :     /     / 0.31   /  4.0 / 4

FROM OUR ST. LOUIS METRONET...

UCTM7:  UNIVERSITY CITY MO :     /     / 0.32   /  3.6 / 3
OFLM7:  2SSW O FALLON MO   :  33 / 17  / 0.30   /  3.5 / 4
MBTM7:  ST. PETERS 2W      :     /     /        /  3.2 / 3
HRVM7:  HARVESTER I MO     :     /     /        /  3.4 / 3
HVSM7:  HARVESTER II MO    :     /     / 0.33   /  3.9 / 4
COTM7:  3E COTTLEVILLE     :     /     / 0.23   /  4.2 / 4
JPKM7:  COTTLEVILLE 1E     :     /     /        /  3.7 / 3
SPEM7:  ST CHARLES MO      :     /     / 0.31   /  3.9 / 4
SCHM7:  ST CHARLES ELM PT  :     /     / 0.30   /  3.5 / 4
STCM7:  ST CHARLES 7SSW    :     /     /        /  2.5 / 3
VLLM7:  VALLEY PARK MO     :     /     /        /  2.5 / 3
LSX:    WELDON SPRING NWS  :     /     / 0.38   /  4.0 / 4
ANSM7:  HERITAGE LANDING   :     /     / 0.39   /  3.6 / 4
FMDM7:  LAKE ST LOUIS 2SW  :     /     / 0.28   /  2.7 / 3

SOUTHEAST MISSOURI...

ELLM7:  ELLINGTON          :     /     / 0.30   /  5.0 / 5
FRDM7:  FREDERICKTOWN      :  33 / 23  / 0.40   /  5.0 / 5
SGNM7:  STE GENEVIEVE      :     /     / 0.45   /  6.0 / 6
SEEM7:  STEELVILLE 2N      :     /     /        /  8.0 / 8
SLLM7:  SULLIVAN 3SE       :     /     / 0.32   /  5.2 / 5

WEST CENTRAL ILLINOIS...

GGGI2:  GRIGGSVILLE        :     /     / 0.07   /  1.0 / 1
GDNI2:  GOLDEN             :     /     / 0.05   /  0.5 / 1
PAYI2:  PAYSON             :     /     / 0.08   /  2.1 / 2
PEYI2:  PERRY 6NW          :  31 / 11  / 0.09   /  2.0 / 2

CENTRAL ILLINOIS...

BTWI2:  BROWNSTOWN 4SW     :  30 / 20  / 0.26   /  4.0 / 4
KNMI2:  KIMMUNDY           :     /     / 0.25   /  4.5 / 5
RAMI2:  RAMSEY             :  31 / 20  / 0.31   /  2.7 / 3
SLOI2:  SALEM IL           :  33 / 21  / 0.35   /  4.0 / 4
VNDI2:  VANDALIA           :  33 / 20  / 0.34   /  3.2 / 3

SOUTHWEST ILLINOIS...

ABRI2:  ALBERS             :     /     / 0.28   /  3.5 / 4
CRVI2:  CARLINVILLE        :     /     /        /  2.5 / 3
CNTI2:  CENTRALIA          :     /     / 0.34   /  3.3 / 3
CHSI2:  CHESTER            :     /     / 0.60   /  6.2 / 6
EDWI2:  EDWARDSVILLE 2W    :     /     / 0.24   /  2.2 / 2
GNFI2:  GREENFIELD         :     /     / 0.11   /  2.2 / 2
GRVI2:  GREENVILLE 2NE     :     /     / 0.14   /  3.5 / 4
HLBI2:  HILLSBORO          :     /     / 0.15   /  2.0 / 2
JVLI2:  JERSEYVILLE 2SW    :  34 / 17  / 0.23   /  3.0 / 3
MTOI2:  MOUNT OLIVE 1E     :     /     /        /  2.1 / 2
MEDI2:  MEDORA             :     /     / 0.29   /  3.1 / 3
REDI2:  RED BUD            :     /     / 0.41   /  5.5 / 6
SPRI2:  SPARTA 1W          :     /     /        /  5.0 / 5
WTRI2:  WATERLOO           :     /     /        /  4.3 / 4
WHLI2:  WHITE HALL 1E      :     /     / 0.11   /  1.1 / 1

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