Alert archive / Missouri / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 161, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 23, 1998, 5:12 PM CDT for Callaway County, Missouri. It was in force for 33 min. 2 reports 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 23, 1998, 5:12 PM CDT (22:12 UTC)
- Expired
- May 23, 1998, 5:45 PM CDT
- In force
- 33 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Callaway County, MO
The radar
The St Louis radar (KLSX), 109 km from the middle of the area, began a volume at 22:14 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 23, 5:15 PM CDT | Hail 0.75 | Fulton, MO | |
| May 23, 5:30 PM CDT | Hail 0.75 | Kingdom City, MO |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 23, 3:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 10.2 hours before the alert went out and 271 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
- 1719 J/kg
- Mixed-layer CIN
- -204 J/kg
- Mixed-layer LCL
- 1570 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 166 m²/s²
- 0-3 km storm-relative helicity
- 214 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
577 WUUS1 KSTL 232213 RRA SVRSTL MOC027-232245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 512 PM CDT SAT MAY 23 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN CALLAWAY COUNTY IN CENTRAL MISSOURI * UNTIL 545 PM CDT * AT 513 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 WEST OF FULTON... MOVING NORTHEAST AT 35 MPH. * LOCATIONS THAT WILL BE AFFECTED... FULTON CARRINGTON KINGDOM CITY AUXVASSE THIS STORM HAS A HISTORY OF DAMAGING HAIL. STAY INSIDE AND AWAY FROM WINDOWS. FG/GKS
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 4:10 PM CDT | Severe Thunderstorm Warning | LSX | Cole, Osage | 50 min |
| May 23, 4:29 PM CDT | Severe Thunderstorm Warning | LSX | Callaway | 46 min |
| May 23, 5:30 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 45 min |
| May 23, 5:34 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Montgomery | 46 min |
| May 23, 5:37 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone | 48 min |
| May 23, 5:59 PM CDT | Tornado Warning | LSX | Saint Charles, Saint Louis | 51 min |
| May 23, 6:20 PM CDT | Tornado Warning | LSX | Pike | 50 min |
| May 23, 6:24 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 51 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1998Every severe thunderstorm warning in 1998
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.