Alert archive / Missouri / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 73, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 3, 2007, 2:27 PM CDT for Saint Charles County, Saint Louis County, City of Saint Louis, Missouri. It was in force for 48 min. 7 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 3, 2007, 2:27 PM CDT (19:27 UTC)
- Expired
- Apr 3, 2007, 3:15 PM CDT
- In force
- 48 min
- Issued by
- NWS St. Louis, MO
- Area
- Counties, with a storm outline in the text
Counties City of Saint Louis, MO, Saint Charles County, MO, Saint Louis County, MO
The radar
The St Louis radar (KLSX), 12 km from the middle of the area, began a volume at 19:31 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 3, 2:29 PM CDT | HAIL 1 | Weldon Spring, MO | MEASURED AT NWS FORECAST OFFICE. |
| Apr 3, 2:30 PM CDT | HAIL 1 | St. Charles, MO | |
| Apr 3, 2:30 PM CDT | HAIL 1.75 | Weldon Spring, MO | |
| Apr 3, 2:35 PM CDT | HAIL 0.75 | St. Peters, MO | AT MCCLAY AND HACKMAN. FROM OFF-DUTY LAMBERT FIELD WEATHER OBSERVER. |
| Apr 3, 2:40 PM CDT | HAIL 0.75 | St. Charles, MO | |
| Apr 3, 2:40 PM CDT | HAIL 1 | Overland, MO | |
| Apr 3, 2:45 PM CDT | HAIL 0.75 | St. Ann, MO | AT LAMBERT FIELD. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 3, 7:37 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 3, 11:51 AM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 7.5 hours before the alert went out and 230 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 32 J/kg
- Mixed-layer CIN
- -399 J/kg
- Mixed-layer LCL
- 1864 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 210 m²/s²
- 0-3 km storm-relative helicity
- 221 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KLSX 031927 SVRLSX MOC183-189-510-032015- /O.NEW.KLSX.SV.W.0073.070403T1927Z-070403T2015Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 227 PM CDT TUE APR 3 2007 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI NORTHERN ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI NORTHERN ST. LOUIS CITY IN EAST CENTRAL MISSOURI * UNTIL 315 PM CDT * AT 226 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL. THIS STORM WAS LOCATED NEAR DARDENNE PRAIRIE...AND MOVING EAST AT 55 MPH. * LOCATIONS IMPACTED INCLUDE... HARVESTER... MARYLAND HEIGHTS... ST. ANN... OVERLAND... BRIDGETON... WOODSON TERRACE... COOL VALLEY... KINLOCH... ST. JOHN... JENNINGS... A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. LAT...LON 3878 9085 3860 9083 3863 9007 3885 9013 $$ CVKING
3 follow-up statements
000 WWUS53 KLSX 031939 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 239 PM CDT TUE APR 3 2007 MOC183-189-510-032015- /O.CON.KLSX.SV.W.0073.000000T0000Z-070403T2015Z/ ST. LOUIS CITY MO-ST. LOUIS MO-ST. CHARLES MO- 239 PM CDT TUE APR 3 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT FOR CENTRAL ST. CHARLES...NORTHERN ST. LOUIS AND NORTHERN ST. LOUIS CITY COUNTIES... AT 235 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL. THIS STORM WAS LOCATED NEAR MARYLAND HEIGHTS...MOVING EAST AT 55 MPH. NUMEROUS REPORTS OF SEVERE HAIL HAVE BEEN OBSERVED WITH THIS STORM...WITH UP TO GOLF BALL SIZE HAIL REPORTED IN WELDON SPRING. LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...WOODSON TERRACE...KINLOCH...COOL VALLEY...BERKELEY...RIVERVIEW... BELLEFONTAINE NEIGHBORS...JENNINGS AND DELLWOOD. A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. LAT...LON 3878 9085 3860 9083 3863 9007 3885 9013 $$ CVKING
000 WWUS53 KLSX 031950 CCA SVSLSX SEVERE WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE ST LOUIS MO 239 PM CDT TUE APR 3 2007 MOC183-031949- /O.COR.KLSX.SV.W.0073.000000T0000Z-070403T2015Z/ ST. CHARLES MO- 239 PM CDT TUE APR 3 2007 ...THE SEVERE THUNDERSTORM WARNING FOR ST. CHARLES COUNTY IS CANCELLED... LAT...LON 3883 9031 3864 9035 3863 9007 3885 9013 $$ MOC189-510-032015- /O.COR.KLSX.SV.W.0073.000000T0000Z-070403T2015Z/ ST. LOUIS CITY MO-ST. LOUIS MO- 239 PM CDT TUE APR 3 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT FOR NORTHEASTERN ST. LOUIS AND NORTHERN ST. LOUIS CITY COUNTIES... AT 235 PM CDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO GOLF BALL SIZE HAIL. THIS STORM WAS LOCATED 7 MILES WEST OF BEL-RIDGE...OR ABOUT NEAR MARYLAND HEIGHTS...MOVING EAST AT 55 MPH. LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...COOL VALLEY...JENNINGS...BEL-RIDGE...NORMANDY...RIVERVIEW...BELLEFONTAINE NEIGHBORS...SPANISH LAKE AND BLACK JACK. LAT...LON 3883 9031 3864 9035 3863 9007 3885 9013 $$ CVKING
000 WWUS53 KLSX 032001 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 301 PM CDT TUE APR 3 2007 MOC189-510-032011- /O.CAN.KLSX.SV.W.0073.000000T0000Z-070403T2015Z/ ST. LOUIS CITY MO-ST. LOUIS MO- 301 PM CDT TUE APR 3 2007 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ST. LOUIS AND NORTHERN ST. LOUIS CITY COUNTIES IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE COUNTY. LAT...LON 3883 9031 3864 9035 3863 9007 3885 9013 $$ CVKING
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 5:19 AM CDT | Severe Thunderstorm Warning | LSX | Knox | 26 min |
| Apr 3, 6:05 AM CDT | Severe Thunderstorm Warning | LSX | Knox, Shelby | 40 min |
| Apr 3, 6:43 AM CDT | Severe Thunderstorm Warning | LSX | Marion, Monroe, Shelby | 62 min |
| Apr 3, 7:26 AM CDT | Severe Thunderstorm Warning | LSX | Marion, Monroe, Shelby | 64 min |
| Apr 3, 8:38 AM CDT | Flash Flood Warning | LSX | Monroe, Shelby | 4 hr |
| Apr 3, 8:38 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone, Callaway | 52 min |
| Apr 3, 9:14 AM CDT | Severe Thunderstorm Warning | LSX | Pike | 46 min |
| Apr 3, 9:30 AM CDT | Severe Thunderstorm Warning | LSX | Callaway, Montgomery | 45 min |
| Apr 3, 9:48 AM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 42 min |
| Apr 3, 12:10 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Cole, Moniteau | 50 min |
| Apr 3, 12:27 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Osage | 48 min |
| Apr 3, 12:48 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Louis | 23 min |
| Apr 3, 12:55 PM CDT | Severe Thunderstorm Warning | LSX | Cole, Osage | 49 min |
| Apr 3, 1:01 PM CDT | Severe Thunderstorm Warning | LSX | Gasconade, Montgomery, Warren | 59 min |
| Apr 3, 1:11 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Washington | 49 min |
| Apr 3, 1:28 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 47 min |
| Apr 3, 1:32 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade | 43 min |
| Apr 3, 1:52 PM CDT | Severe Thunderstorm Warning | LSX | Reynolds | 38 min |
| Apr 3, 2:08 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade | 52 min |
| Apr 3, 2:13 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 47 min |
| Apr 3, 2:14 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 31 min |
| Apr 3, 2:20 PM CDT | Severe Thunderstorm Warning | LSX | Crawford | 36 min |
| Apr 3, 2:21 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 39 min |
| Apr 3, 2:31 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 29 min |
| Apr 3, 2:33 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 57 min |
| Apr 3, 2:48 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Washington | 42 min |
| Apr 3, 2:59 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 46 min |
| Apr 3, 3:07 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 26 min |
| Apr 3, 3:11 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 49 min |
| Apr 3, 3:13 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 47 min |
| Apr 3, 3:27 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 33 min |
| Apr 3, 3:37 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 42 min |
| Apr 3, 3:57 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 33 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2007Every severe thunderstorm warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.