Alert archive / Missouri / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 27, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 18, 1997, 10:07 PM CDT for Cole County, Moniteau County, Missouri. It was in force for 38 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
- Apr 18, 1997, 10:07 PM CDT (03:07 UTC)
- Expired
- Apr 18, 1997, 10:45 PM CDT
- In force
- 38 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Cole County, MO, Moniteau County, MO
The radar
The St Louis radar (KLSX), 153 km from the middle of the area, began a volume at 03:09 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 18, 9:15 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 3.1 hours before the alert went out and 221 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
- 150 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 2058 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 275 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
755 WUUS1 KSTL 190309 RRA SVRSTL MOC051-135-190345- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1007 PM CDT FRI APR 18 1997 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1045 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL MISSOURI ...COLE COUNTY...EASTERN MONITEAU COUNTY AT 1005 RADAR INDICATED A SEVERE THUNDERSTORM NEAR CALIFORNIA MISSOURI MOVING SOUTHEAST AT 30 MPH. CENTERTOWN...JEFFERSON CITY AND BRAZITO ARE IN THE PATH OF THESE STORMS. HAIL OF AT LEAST 1 INCH DIAMETER ARE IN THE PATH OF THIS STORM. JPK
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 18, 8:07 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Saint Louis | 38 min |
| Apr 18, 8:42 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Warren | 33 min |
| Apr 18, 8:51 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Pike | 39 min |
| Apr 18, 8:58 PM CDT | Severe Thunderstorm Warning | LSX | Marion, Pike, Ralls | 47 min |
| Apr 18, 9:00 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Callaway | 45 min |
| Apr 18, 9:45 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Pike | 45 min |
| Apr 18, 9:58 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 32 min |
| Apr 18, 9:58 PM CDT | Severe Thunderstorm Warning | LSX | City of Saint Louis | 32 min |
| Apr 18, 10:25 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 50 min |
| Apr 18, 10:54 PM CDT | Severe Thunderstorm Warning | LSX | Boone | 51 min |
| Apr 19, 1:11 AM CDT | Severe Thunderstorm Warning | LSX | Franklin | 34 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.