Alert archive / Missouri / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 91, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 26, 1997, 4:43 AM CDT for Sainte Genevieve County, Saint Francois County, Missouri. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 26, 1997, 4:43 AM CDT (09:43 UTC)
- Expired
- May 26, 1997, 5:30 AM CDT
- In force
- 47 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Saint Francois County, MO, Sainte Genevieve County, MO
The radar
The St Louis radar (KLSX), 99 km from the middle of the area, began a volume at 09:43 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.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 9.7 hours before the alert went out and 296 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 551 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
720 WUUS1 KSTL 260944 RRA SVRSTL MOC187-186-261030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 443 AM CDT MON MAY 26 1997 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL MISSOURI ...ST. FRANCOIS COUNTY...ST. GENEVIEVE COUNTY AT 442 AM...WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM JUST NORTH OF BISMARCK...OR JUST WEST OF FLAT RIVER. THE STORM WAS MOVING NORTHEAST AT EAST AT 30 MPH. IN ADDITION TO FLAT RIVER...THE TOWNS OF ROCKY RIDGE...BLOOMSDALE...AND STE GENEVIEVE WILL BE AFFECTED BY THIS STORM. THIS IS A DANGEROUS STORM BE PREPARED FOR DAMAGING WINDS...HAIL AND DEADLY LIGHTNING. STAY INSIDE AND AWAY FROM WINDOWS. TRUETT/GKS
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 7:13 PM CDT | Severe Thunderstorm Warning | LSX | Gasconade | 47 min |
| May 25, 7:14 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Louis | 46 min |
| May 25, 7:36 PM CDT | Severe Thunderstorm Warning | LSX | Franklin | 54 min |
| May 25, 7:49 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 56 min |
| May 25, 8:12 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Warren | 33 min |
| May 25, 8:18 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Washington | 42 min |
| May 25, 8:46 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 44 min |
| May 25, 9:24 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 51 min |
| May 25, 10:47 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 43 min |
| May 26, 3:15 AM CDT | Flash Flood Warning | LSX | Cole, Osage | 3 hr |
| May 26, 2:29 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 31 min |
| May 26, 5:39 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 51 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1997Every severe thunderstorm warning in 1997
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.