Alert archive / Missouri / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 54, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 15, 1998, 2:43 PM CDT for Cole County, Osage County, Missouri. It was in force for 47 min. 3 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
- Apr 15, 1998, 2:43 PM CDT (19:43 UTC)
- Expired
- Apr 15, 1998, 3:30 PM CDT
- In force
- 47 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Cole County, MO, Osage County, MO
The radar
The St Louis radar (KLSX), 123 km from the middle of the area, began a volume at 19:45 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 |
|---|---|---|---|
| Apr 15, 3:00 PM CDT | Hail 1 | Meta, MO | |
| Apr 15, 3:06 PM CDT | Hail 1 | Argyle, MO | |
| Apr 15, 3:12 PM CDT | Hail 0.75 | Freeburg, 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 |
|---|---|---|---|
| Apr 15, 1:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 7.7 hours before the alert went out and 233 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
- 557 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 846 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 280 m²/s²
- 0-3 km storm-relative helicity
- 315 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 4.9
The text
As transmitted, in the capitals the NWS used until 2016.
461 WUUS1 KSTL 151944 RRA SVRSTL MOC051-151-152030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 243 PM CDT WED APR 15 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN COLE COUNTY IN CENTRAL MISSOURI SOUTHERN OSAGE COUNTY IN CENTRAL MISSOURI * UNTIL 330 PM CDT * AT AT 240 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR TUSCUMBIA MISSOURI... MOVING EAST NORTHEAST AT 30 MPH. * LOCATIONS THAT WILL BE AFFECTED... ST. THOMAS META FREEBURG SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND GUSTS IN EXCESS OF 60 MPH...DAMAGING HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OR YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PEDIGO
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Apr 15, 11:00 AM CDT, 3 hours 43 minutes before
ILZ058>060-064-065-069-070-074-079-095>102-MOZ009-010-018-019-026- 027-034>036-041-042-047>052-059>065-072>075-084-085-099-152200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 1100 AM CDT WED APR 15 1998 THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST LOUIS. AREAS INCLUDED ARE PORTIONS OF NORTHEAST...CENTRAL...EAST CENTRAL AND SOUTHEAST MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS. THERE IS A HIGH RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT ACROSS THE SOUTHEERN PART OF THE WARNING AREA...GENERALLY SOUTH OF A LINE FROM TIPTON MISSOURI IN MONITEAU COUNTY TO WASHINGTON MISSOURI IN FRANKLIN COUNTY TO CENTRALIA ILLINOIS IN MARION COUNTY. THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT OVER THE REST OF THE WARNING AREA. STORM SPOTTER ACTIVATION WILL LIKELY BE REQUIRED THIS AFTERNOON. THIS AFTERNOON DAMAGING WINDS...LARGE HAIL...AND TORNADOES WILL BE A WIDESPREAD THREAT ACROSS MUCH OF THE SEVERE OUTLOOK AREA. THIS IS A POTENTIALLY DANGEROUS WEATHER SITUATION. PERSONS IN THE THREATENED AREAS ARE URGED TO REVIEW SEVERE WEATHER SAFETY RULES...AND LISTEN TO RADIO...TV...OR NOAA WEATHER RADIO FOR LATER WATCHES... WARNINGS AND STATEMENTS. AMS
Special weather statement, Apr 15, 11:00 AM CDT, 3 hours 43 minutes before
ILZ058>060-064-065-069-070-074-079-095>102-MOZ009-010-018-019-026- 027-034>036-041-042-047>052-059>065-072>075-084-085-099-152200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 1100 AM CDT WED APR 15 1998 THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST LOUIS. AREAS INCLUDED ARE PORTIONS OF NORTHEAST...CENTRAL...EAST CENTRAL AND SOUTHEAST MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS. THERE IS A HIGH RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT ACROSS THE SOUTHEERN PART OF THE WARNING AREA...GENERALLY SOUTH OF A LINE FROM TIPTON MISSOURI IN MONITEAU COUNTY TO WASHINGTON MISSOURI IN FRANKLIN COUNTY TO CENTRALIA ILLINOIS IN MARION COUNTY. THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT OVER THE REST OF THE WARNING AREA. STORM SPOTTER ACTIVATION WILL LIKELY BE REQUIRED THIS AFTERNOON. THIS AFTERNOON DAMAGING WINDS...LARGE HAIL...AND TORNADOES WILL BE A WIDESPREAD THREAT ACROSS MUCH OF THE SEVERE OUTLOOK AREA. THIS IS A POTENTIALLY DANGEROUS WEATHER SITUATION. PERSONS IN THE THREATENED AREAS ARE URGED TO REVIEW SEVERE WEATHER SAFETY RULES...AND LISTEN TO RADIO...TV...OR NOAA WEATHER RADIO FOR LATER WATCHES... WARNINGS AND STATEMENTS. AMS
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 7:11 AM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 44 min |
| Apr 15, 3:26 PM CDT | Tornado Warning | LSX | Franklin, Gasconade | 49 min |
| Apr 15, 3:52 PM CDT | Severe Thunderstorm Warning | LSX | Osage | 48 min |
| Apr 15, 4:06 PM CDT | Tornado Warning | LSX | Franklin | 49 min |
| Apr 15, 4:25 PM CDT | Tornado Warning | LSX | Jefferson | 65 min |
| Apr 15, 6:24 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Louis | 61 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.