Alert archive / Missouri / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 55, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 2, 1997, 11:21 PM CDT for Lincoln County, Missouri. It was in force for 39 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 2, 1997, 11:21 PM CDT (04:21 UTC)
- Expired
- May 3, 1997, 12:00 AM CDT
- In force
- 39 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Lincoln County, MO
The radar
The St Louis radar (KLSX), 47 km from the middle of the area, began a volume at 04:23 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 |
|---|---|---|---|
| May 2, 11:25 PM CDT | Hail 0.75 | Elsberry, MO | County sheriff reported 1 inch hail. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 4.4 hours before the alert went out and 236 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
- 12 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 702 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- -74 m²/s²
- 0-3 km storm-relative helicity
- -24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
334 WUUS1 KSTL 030422 RRA SVRSTL MOC113-030500- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1121 PM CDT FRI MAY 2 1997 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL MIDNIGHT CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST CENTRAL MISSOURI ...EASTERN LINCOLN COUNTY AT 1120 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES EAST OF SILEX...OR 8 MILES NORTH OF TROY MISSOURI TOWNS IN THE PATH OF THIS STORM ARE....ELSBERRY AND NEW HOPE. THIS STORM IS MOVING TO THE EAST AT 35 MPH. THE MAIN THREAT FROM THIS STORM WILL BE LARGE HAIL. THIS STORM HAS A HISTORY OF DAMAGING HAIL. STAY INSIDE AND AWAY FROM WINDOWS. JP/RP
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 8:53 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone | 52 min |
| May 2, 9:01 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 44 min |
| May 2, 9:19 PM CDT | Severe Thunderstorm Warning | LSX | Ralls | 41 min |
| May 2, 9:30 PM CDT | Severe Thunderstorm Warning | LSX | Scotland | 45 min |
| May 2, 9:37 PM CDT | Severe Thunderstorm Warning | LSX | Knox | 53 min |
| May 2, 10:08 PM CDT | Severe Thunderstorm Warning | LSX | Shelby | 52 min |
| May 2, 10:25 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 50 min |
| May 2, 10:35 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery | 40 min |
| May 2, 10:44 PM CDT | Severe Thunderstorm Warning | LSX | Pike, Ralls | 31 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.