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May 6 - 7th, 2002 Severe Weather Event
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| Radar and Satellite Analysis, Impacts and Review: | ||||
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| Infrared Satellite Imagery (image loop) |
Radar Reflectivity from WSR-88D KLSX (image loop) |
Damage Map Across the Confluence Region |
Downburst Damage Map at the North Shore Marina |
Radar Derived Precipitation |
| Damage Survey Assessment: |
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| Thunderstorm winds produced minor damage throughout the confluence area of the Illinois, Mississippi and Missouri Rivers incorporating the counties of Calhoun and Madison in Illinois, and St. Charles in Missouri. Smartt Field, located in Northern St. Charles within the flood plain of the confluence, recorded gusts of 44 knots (51 mph) around 2:30 AM CDT. Wind speeds were likely a little stronger, perhaps between 50 and 60 knots (58-70 mph) throughout the confluence region. Snapped, uprooted, or broken trees comprised most of the damage.
Two areas with enhanced damage did occur. The first occured in South-Central Calhoun County, and the second at the North Shore Marina along the Mississippi River in North-Central St. Charles County. The first area was likely a small tornado of category F0. The second area appears to be a result of microburst winds greater than 70 mph. Residents at the marina reported a prolonged period of intense winds, perhaps lasting as long as 10 or 15 minutes. |
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| Preliminary Storm Reports for May 6 - 7th: |
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| PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE ST LOUIS MO 544 AM CDT TUE MAY 07 2002 |
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| TIME(CDT) 1117 PM 1143 PM 1147 PM 1230 AM 0122 AM 0221 AM 0226 AM 0235 AM 0235 AM 0235 AM 0248 AM 0250 AM 0250 AM 0300 AM 0300 AM 0300 AM 0325 AM 0345 AM 0355 AM 0400 AM 0400 AM 0415 AM 0415 AM 0420 AM 0430 AM 0430 AM |
LOCATION (COUNTY) 2W COLUMBIA MO (BOONE) COLUMBIA MO (BOONE) 2N COLUMBIA MO (BOONE) KINGDOM CITY MO (CALLAWAY) COLUMBIA MO (BOONE) OLD MONROE MO (LINCOLN) PORTAGE DES SIOUX MO (ST CHARLES) BRUSSELS IL (CALHOUN) DEER PLAIN IL (CALHOUN) 1S BRUSSELS IL (CALHOUN) 2N ORCHARD FARMS MO (ST CHARLES) ALTON IL (MADISON) GODFREY IL (MADISON) BUNKER HILL IL (MACOUPIN) 3S NUTWOOD IL (JERSEY) GODFREY IL (MADISON) 5SW STEELVILLE MO (CRAWFORD) UNION MO (FRANKLIN) 5W HILLSBORO MO (JEFFERSON) 5N HILLSBORO MO (JEFFERSON) FESTUS MO (JEFFERSON) COLUMBIA IL (MONROE) 2W WATERLOO IL (MONROE) BONNE TERRE MO (ST FRANCOIS) NEW ATHENS IL (ST. CLAIR) BLOOMSDALE MO (STE GENEVIEVE) |
EVENT 0.75 INCH HAIL 0.75 INCH HAIL 0.75 INCH HAIL WIND DAMAGE FLOODING 60 MPH WIND GUST 90 MPH WIND GUST WIND DAMAGE WIND DAMAGE WIND DAMAGE WIND DAMAGE WIND DAMAGE WIND DAMAGE 0.88 INCH HAIL WIND DAMAGE WIND DAMAGE WIND DAMAGE WIND DAMAGE WIND DAMAGE WIND DAMAGE WIND DAMAGE WIND DAMAGE WIND DAMAGE WIND DAMAGE WIND DAMAGE WIND DAMAGE |
REMARKS REPORTED BY EOC. REPORTED BY TRAINED SPOTTER. REPORTED BY EOC. DAMAGE TO POWER POLES AND ROAD SIGN ON I-70 NORTH OUTER ROAD. TIME ESTIMATED. EOC REPORTED HIGHWAY 40 WEST OF I-70 CLOSED DUE TO FLOODING. BROWN SCHOOL ROAD CLOSE DUE TO HIGH WATER. REPORTED BY COUNTY SHERIFF. SPOTTER RECORDED 87 MPH WIND GUST. SHERIFF REPORTED POWER LINES DOWN. SHERIFF REPORTED ROOF BLOWN OFF EQUIPMENT SHED. SHERIFF REPORTED SEVERAL FARM BUILDINGS DESTROYED. EOC REPORTED NUMEROUS TREES AND UTILITY POLES DOWN OFF HIGHWAY V. EXTENSIVE DAMAGE ALSO AT THE NORTH SHORE MARINA. FIRE DEPT REPORTED POWER LINES DOWN. EMS REPORTED TREE BLOWN ONTO A HOUSE. REPORTED BY FIRE DEPT. SHERIFF REPORTED LARGE TREES DOWN BLOCKING ROUTE 100. EMS REPORTED LARGE TREES DOWN WEST OF HIGHWAY 111. SHERIFF REPORTED LARGE TREE DOWN. SHERIFF REPORTED POWER LINES DOWN. SHERIFF REPORTED TREES DOWN. SHERIFF REPORTED TREES DOWN IN GOLDMAN. SHERIFF REPORTED TREES DOWN. SHERIFF REPORTED TREES DOWN ON ROUTE 3. SHERIFF REPORTED TREES DOWN ON ROUTE 156. SHERIFF REPORTED LARGE TREE LIMBS DOWN. EOC REPORTED TREES AND POWER LINES DOWN. SOME STRUCTURAL DAMAGE TO A HOME DUE TO A FALLEN TREE. ROOF BLOWN OFF A HOUSE. SHERIFF REPORTED TREES DOWN. |
| Precipitation Reports: |
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| MORNING PRECIPITATION SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 1100 AM CDT TUE MAY 07 2002 VALUES REPRESENT YESTERDAY'S PRECIPITATION OVER THE LAST 24 HOURS ENDING AT 7 AM |
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| STATION ID STL COU JEF SUS SET FAM UIN CPS PPQ SAR SLO NORTHEAST MISSOURI... BWLM7 CANM7 CDAM7 CLKM7 EDNM7 HNNM7 LABM7 LUSM7 NLDM7 NVTM7 PMYM7 PRSM7 SVRM7 SLBM7 TAYM7 VNDM7 CENTRAL MISSOURI... FREM7 FTNM7 JWPM7 MEXM7 RIFM7 CMSM7 EAST CENTRAL MISSOURI... EBYM7 FARM7 FESM7 PTSM7 RSEM7 UNNM7 WHGM7 ST. LOUIS METRONET... UCTM7 HRVM7 MELM7 CAGM7 BCHM7 SPEM7 SCHM7 STCM7 OFNM7 VLLM7 LSX HTVM7 ANSM7 STPM7 GRTI2 ALNI2 SOUTHEAST MISSOURI... FRDM7 SGNM7 SLLM7 WEST CENTRAL ILLINOIS... GGGI2 GDNI2 MTSI2 PAYI2 PEYI2 UIN QLDI2 RIPI2 VRDI2 CENTRAL ILLINOIS... BTWI2 KNMI2 PTKI2 LCFI2 RAMI2 SLOI2 VNDI2 SOUTHWEST ILLINOIS... ABRI2 CAYI2 CNTI2 EDWI2 GRFI2 GNFI2 GRVI2 HLBI2 IUKI2 JVLI2 MTOI2 MEDI2 NSHI2 REDI2 STEI2 WHLI2 |
STATION NAME ST. LOUIS COLUMBIA JEFFERSON CITY CHESTERFIELD ST CHARLES FARMINGTON QUINCY CAHOKIA PITTSFIELD SPARTA SALEM BOWLING GREEN 2NE CANTON L/D20 CANNON DAM CLARKSVILLE L/D EDINA HANNIBAL MO LABELLE LOUISIANA NEW LONDON NOVELTY 1E PALMYRA PARIS SAVERTON L/D SHELBINA TAYLOR 5SW VANDALIA FREEDOM FULTON JEFFERSON CITY MEXICO RICH FOUNTAIN 3E CHAMOIS ELSBERRY 1S FARMINGTON FESTUS POTOSI 5SW ROSEBUD UNION WASHINGTON UNIVERSITY CITY MO HARVESTER I MO MEHLVILLE 1E WINFIELD L/D BOSCHERTOWN ST CHARLES MO ST CHARLES ELM PT ST CHARLES 7SSW O FALLON MO VALLEY PARK MO WELDON SPRING NWS HARVESTER III MO HERITAGE LANDING ST PETERS GRANITE CITY MELVIN PRICE FREDERICKTOWN STE GENEVIEVE SULLIVAN 3SE GRIGGSVILLE GOLDEN MOUNT STERLING PAYSON PERRY 6NW QUINCY QUINCY L/D 21 RIPLEY VIRDEN BROWNSTOWN 4SW KIMMUNDY PATOKA LITCHFIELD RAMSEY SALEM IL VANDALIA ALBERS CARLYLE CENTRALIA EDWARDSVILLE 2W GRAFTON GREENFIELD GREENVILLE 2NE HILLSBORO IUKA 12SW JERSEYVILLE 2SW MOUNT OLIVE 1E MEDORA NASHVILLE 4NE RED BUD STEELEVILLE WHITE HALL 1E |
24 HOUR AMOUNT 1.55 2.10 1.47 1.57 1.91 0.47 1.31 1.48 0.63 0.15 0.72 1.26 1.19 1.67 1.61 0.48 3.15 0.92 1.35 2.66 1.89 2.14 1.29 1.88 2.09 0.60 1.78 1.18 2.30 1.58 3.67 1.18 1.80 3.52 0.70 0.65 1.10 1.70 1.10 1.41 1.65 1.42 1.50 2.31 1.65 1.62 1.53 1.75 1.79 1.45 1.45 1.41 1.75 1.55 1.99 2.00 0.58 0.47 1.04 2.60 0.41 1.18 2.88 2.11 1.31 1.69 0.65 1.36 1.82 1.59 1.35 2.96 3.61 1.81 2.54 2.03 1.65 1.62 1.76 1.99 2.05 1.80 2.60 1.94 2.08 1.85 2.93 0.94 1.06 0.39 1.79 |
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