Alert archive / Missouri / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 101, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 1, 1999, 4:24 PM CDT for Boone County, Callaway County, Missouri. It was in force for 51 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
- Jun 1, 1999, 4:24 PM CDT (21:24 UTC)
- Expired
- Jun 1, 1999, 5:15 PM CDT
- In force
- 51 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Boone County, MO, Callaway County, MO
The radar
The St Louis radar (KLSX), 127 km from the middle of the area, began a volume at 21:25 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 |
|---|---|---|---|
| Jun 1, 1:30 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 9.4 hours before the alert went out and 268 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
- 20 J/kg
- Mixed-layer CIN
- -321 J/kg
- Mixed-layer LCL
- 1581 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 261 m²/s²
- 0-3 km storm-relative helicity
- 270 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
515 WUUS1 KSTL 012125 RRA SVRSTL MOC019-027-012215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 424 PM CDT TUE JUN 1 1999 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN BOONE COUNTY IN CENTRAL MISSOURI CALLAWAY COUNTY IN CENTRAL MISSOURI * UNTIL 515 PM CDT * AT 423 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTHEAST OF COLUMBIA... MOVING NORTHEAST AT 30 MPH. * LOCATIONS THAT WILL BE AFFECTED... KINGDOM CITY FULTON MILLERSBURG CARRINGTON THE PRIMARY SEVERE WEATHER THREAT IS DAMAGING HAIL. LARGE HAIL CAN CAUSE EXTENSIVE PROPERTY DAMAGE AN SERIOUS INJURY TO PEOPLE CAUGHT OUTDOORS. MOVE INSIDE A STURDY BUILDING IMMEDIATELY. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. FG/RP
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, Jun 1, 11:30 AM CDT, 4 hours 54 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>075-084-085-099-012300- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 1130 AM CDT TUE JUN 1 1999 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 SLIGHT RISK OF SEVERE THUNDERSTORMS SOUTH OF THE LINE FROM AROUND ST LOUIS TO JUST SOUTH OF COLUMBIA MISSOURI FOR THIS AFTERNOON AND TONIGHT. EMERGENCY MANAGERS AND STORM SPOTTER GROUPS SHOULD BE PREPARED FOR POSSIBLE SKYWARN ACTIVATION THIS AFTERNOON AND TONIGHT.
Special weather statement, Jun 1, 1:00 PM CDT, 3 hours 24 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>075-084-085-099-012300- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 100 PM CDT TUE JUN 1 1999 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 SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE ENTIRE WARNING AREA FOR THIS AFTERNOON AND TONIGHT. EMERGENCY MANAGERS AND STORM SPOTTER GROUPS SHOULD BE PREPARED FOR POSSIBLE SKYWARN ACTIVATION THIS AFTERNOON AND TONIGHT.@ VA
Special weather statement, Jun 1, 1:00 PM CDT, 3 hours 24 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>075-084-085-099-012300- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 100 PM CDT TUE JUN 1 1999 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 SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE ENTIRE WARNING AREA FOR THIS AFTERNOON AND TONIGHT. EMERGENCY MANAGERS AND STORM SPOTTER GROUPS SHOULD BE PREPARED FOR POSSIBLE SKYWARN ACTIVATION THIS AFTERNOON AND TONIGHT.@ VA
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 3:17 PM CDT | Severe Thunderstorm Warning | LSX | Shelby | 48 min |
| Jun 1, 3:27 PM CDT | Severe Thunderstorm Warning | LSX | Lewis | 48 min |
| Jun 1, 3:37 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 48 min |
| Jun 1, 3:44 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 51 min |
| Jun 1, 4:06 PM CDT | Severe Thunderstorm Warning | LSX | Shelby | 34 min |
| Jun 1, 4:12 PM CDT | Tornado Warning | LSX | Cole | 48 min |
| Jun 1, 4:19 PM CDT | Severe Thunderstorm Warning | LSX | Ralls | 51 min |
| Jun 1, 4:33 PM CDT | Severe Thunderstorm Warning | LSX | Lewis | 47 min |
| Jun 1, 5:01 PM CDT | Severe Thunderstorm Warning | LSX | Cole, Osage | 49 min |
| Jun 1, 5:11 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 49 min |
| Jun 1, 5:22 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 48 min |
| Jun 1, 5:48 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 47 min |
| Jun 1, 5:49 PM CDT | Tornado Warning | LSX | Lincoln | 51 min |
| Jun 1, 6:34 PM CDT | Tornado Warning | LSX | Crawford | 51 min |
| Jun 1, 6:44 PM CDT | Severe Thunderstorm Warning | LSX | Franklin | 51 min |
| Jun 1, 6:50 PM CDT | Tornado Warning | LSX | Franklin | 50 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1999Every severe thunderstorm warning in 1999
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.