Alert archive / Missouri / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 51, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 13, 1998, 5:19 PM CDT for Franklin County, Missouri. It was in force for 41 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
- Apr 13, 1998, 5:19 PM CDT (22:19 UTC)
- Expired
- Apr 13, 1998, 6:00 PM CDT
- In force
- 41 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Franklin County, MO
The radar
The St Louis radar (KLSX), 47 km from the middle of the area, began a volume at 22:19 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 13, 5:25 PM CDT | Hail 1.5 | Sullivan, MO | Severe storm spotters reported 1 1/2 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 13, 3:45 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 10.3 hours before the alert went out and 288 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
- 1703 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 337 m²/s²
- 0-3 km storm-relative helicity
- 313 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
621 WUUS1 KSTL 132220 RRA SVRSTL MOC071-132300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 519 PM CDT MON APR 13 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST CENTRAL MISSOURI ...SOUTHERN FRANKLIN COUNTY AT 521 PM...RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES WEST OF SULLIVAN MOVING EAST AT 30 MPH. TOWNS IN THE PATH OF THIS STORM INCLUDE SULLIVAN...STANTON AND ST CLAIR. REMEMBER...A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. IF OUTDOORS...SEEK INSIDE SHELTER IMMEDIATELY. STAY AWAY FROM WINDOWS.
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 13, 4:20 PM CDT, 59 minutes before
MOZ026-027-034>036-041-042-047>052-059-060-062-132315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 420 PM CDT MON APR 13 1998 SEVERE THUNDERSTORM WATCH NUMBER 203 VALID UNTIL 500 PM HAS BEEN CANCELLED AND REPLACED BY TORNADO WATCH NUMBER 205 VALID UNTIL 900 PM. THE SEVERE THUNDERSTORM WATCH IS CANCELLED AND REPLACED BY A TORNADO WATCH FOR THE FOLLOWING COUNTIES: SHELBY MARION MONROE RALLS PIKE AUDRAIN BOONE CALLAWAY MONTGOMERY WARREN LINCOLN MONITEAU COLE OSAGE GASCONADE FRANKIN SEVERE THUNDERSTORMS ARE OCCURRING IN THE WATCH AREA AT THIS TIME. STAY TUNED TO YOUR RADIO OR TELEVISION OR NOAA WEATHER RADIO FOR THE LATEST ADVISORIES AND STATEMENTS. WDB
Special weather statement, Apr 13, 4:20 PM CDT, 59 minutes before
MOZ026-027-034>036-041-042-047>052-059-060-062-132315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 420 PM CDT MON APR 13 1998 SEVERE THUNDERSTORM WATCH NUMBER 203 VALID UNTIL 500 PM HAS BEEN CANCELLED AND REPLACED BY TORNADO WATCH NUMBER 205 VALID UNTIL 900 PM. THE SEVERE THUNDERSTORM WATCH IS CANCELLED AND REPLACED BY A TORNADO WATCH FOR THE FOLLOWING COUNTIES: SHELBY MARION MONROE RALLS PIKE AUDRAIN BOONE CALLAWAY MONTGOMERY WARREN LINCOLN MONITEAU COLE OSAGE GASCONADE FRANKIN SEVERE THUNDERSTORMS ARE OCCURRING IN THE WATCH AREA AT THIS TIME. STAY TUNED TO YOUR RADIO OR TELEVISION OR NOAA WEATHER RADIO FOR THE LATEST ADVISORIES AND STATEMENTS. WDB
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 10:41 AM CDT | Severe Thunderstorm Warning | LSX | Franklin | 49 min |
| Apr 13, 12:04 PM CDT | Severe Thunderstorm Warning | LSX | Saint Francois | 56 min |
| Apr 13, 12:10 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 50 min |
| Apr 13, 1:42 PM CDT | Severe Thunderstorm Warning | LSX | Boone | 63 min |
| Apr 13, 1:56 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 49 min |
| Apr 13, 2:19 PM CDT | Severe Thunderstorm Warning | LSX | Callaway | 41 min |
| Apr 13, 2:48 PM CDT | Severe Thunderstorm Warning | LSX | Crawford | 42 min |
| Apr 13, 2:57 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Montgomery | 48 min |
| Apr 13, 3:05 PM CDT | Tornado Warning | LSX | Callaway, Montgomery | 40 min |
| Apr 13, 3:09 PM CDT | Tornado Warning | LSX | Crawford | 51 min |
| Apr 13, 3:19 PM CDT | Severe Thunderstorm Warning | LSX | Warren | 41 min |
| Apr 13, 3:24 PM CDT | Tornado Warning | LSX | Washington | 51 min |
| Apr 13, 3:48 PM CDT | Severe Thunderstorm Warning | LSX | Crawford | 42 min |
| Apr 13, 3:52 PM CDT | Tornado Warning | LSX | Warren | 53 min |
| Apr 13, 4:11 PM CDT | Tornado Warning | LSX | Jefferson, Washington | 49 min |
| Apr 13, 4:16 PM CDT | Tornado Warning | LSX | Saint Charles | 44 min |
| Apr 13, 4:21 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 54 min |
| Apr 13, 4:40 PM CDT | Tornado Warning | LSX | Saint Charles | 65 min |
| Apr 13, 4:45 PM CDT | Tornado Warning | LSX | Sainte Genevieve, Saint Francois | 60 min |
| Apr 13, 4:54 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Washington | 66 min |
| Apr 13, 4:54 PM CDT | Severe Thunderstorm Warning | LSX | Reynolds | 66 min |
| Apr 13, 5:36 PM CDT | Tornado Warning | LSX | Saint Louis | 54 min |
| Apr 13, 5:42 PM CDT | Tornado Warning | LSX | Sainte Genevieve | 63 min |
| Apr 13, 5:50 PM CDT | Tornado Warning | LSX | City of Saint Louis | 40 min |
| Apr 13, 5:56 PM CDT | Tornado Warning | LSX | Jefferson | 49 min |
| Apr 13, 6:19 PM CDT | Tornado Warning | LSX | Iron, Reynolds | 41 min |
| Apr 13, 6:32 PM CDT | Tornado Warning | LSX | Madison | 58 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.