Alert archive / Missouri / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 440, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 3, 2011, 2:55 PM CDT for 5 counties in Missouri. It was in force for 35 min. 2 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
- Jul 3, 2011, 2:55 PM CDT (19:55 UTC)
- Expired
- Jul 3, 2011, 3:30 PM CDT
- In force
- 35 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Callaway County, MO, Franklin County, MO, Gasconade County, MO, Montgomery County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 75 km from the middle of the area, began a volume at 19:56 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 |
|---|---|---|---|
| Jul 3, 2:57 PM CDT | TSTM WND GST 70 | Williamsburg, MO | |
| Jul 3, 3:26 PM CDT | HAIL 0.25 | 1 N Hermann, MO | . |
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 |
|---|---|---|---|
| Jul 3, 1:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 7.9 hours before the alert went out and 287 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
- 1911 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 884 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
437 WUUS53 KLSX 031955 SVRLSX MOC027-071-073-139-219-032030- /O.NEW.KLSX.SV.W.0440.110703T1955Z-110703T2030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 255 PM CDT SUN JUL 3 2011 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL CALLAWAY COUNTY IN CENTRAL MISSOURI... EXTREME NORTHWESTERN FRANKLIN COUNTY IN EAST CENTRAL MISSOURI... EXTREME NORTHERN GASCONADE COUNTY IN EAST CENTRAL MISSOURI... MONTGOMERY COUNTY IN EAST CENTRAL MISSOURI... WESTERN WARREN COUNTY IN EAST CENTRAL MISSOURI... * UNTIL 330 PM CDT * AT 252 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM SHAMROCK TO 6 MILES NORTHEAST OF CHAMOIS...AND MOVING EAST AT 45 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS. * LOCATIONS IMPACTED INCLUDE... MONTGOMERY CITY...HERMANN...MINEOLA...BIG SPRING...NEW FLORENCE... JONESBURG...AMERICUS...DANVILLE...RHINELAND...MCKITTRICK...HIGH HILL AND BERGER. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 3904 9174 3899 9119 3862 9119 3872 9173 TIME...MOT...LOC 1955Z 281DEG 38KT 3900 9164 3871 9163 WIND...HAIL 70MPH 0.75IN $$ CVKING
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 1:18 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade | 42 min |
| Jul 3, 1:29 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles, Saint Louis, Warren | 46 min |
| Jul 3, 1:29 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Washington | 46 min |
| Jul 3, 1:41 PM CDT | Severe Thunderstorm Warning | LSX | Boone | 49 min |
| Jul 3, 1:54 PM CDT | Severe Thunderstorm Warning | LSX | Franklin | 51 min |
| Jul 3, 2:02 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Callaway | 58 min |
| Jul 3, 2:12 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Saint Charles, Saint Louis | 48 min |
| Jul 3, 2:13 PM CDT | Severe Thunderstorm Warning | LSX | Franklin | 47 min |
| Jul 3, 2:16 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 44 min |
| Jul 3, 2:22 PM CDT | Severe Thunderstorm Warning | LSX | Saint Francois | 20 min |
| Jul 3, 2:24 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Warren | 51 min |
| Jul 3, 2:29 PM CDT | Severe Thunderstorm Warning | LSX | Cole, Osage | 46 min |
| Jul 3, 2:33 PM CDT | Severe Thunderstorm Warning | LSX | Callaway | 42 min |
| Jul 3, 2:34 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Louis | 26 min |
| Jul 3, 2:50 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Saint Charles, Saint Louis, Warren, City of Saint Louis | 40 min |
| Jul 3, 2:51 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Osage | 24 min |
| Jul 3, 3:05 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Gasconade, Montgomery, Osage | 25 min |
| Jul 3, 3:24 PM CDT | Areal Flood Advisory | LSX | Sainte Genevieve, Saint Louis | 6 hr |
| Jul 3, 3:26 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Franklin, Gasconade, Lincoln, Montgomery, Osage and 2 more | 64 min |
| Jul 3, 3:56 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles, Saint Louis | 49 min |
| Jul 3, 4:34 PM CDT | Areal Flood Advisory | LSX | Franklin, Lincoln, Saint Charles, Warren | 5 hr |
| Jul 3, 5:25 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 35 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2011Every severe thunderstorm warning in 2011
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.