Alert archive / Illinois / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 114, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 1, 1999, 8:49 PM CDT for Fayette County, Illinois. It was in force for 51 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
- Jun 1, 1999, 8:49 PM CDT (01:49 UTC)
- Expired
- Jun 1, 1999, 9:40 PM CDT
- In force
- 51 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Fayette County, IL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 1, 8:52 PM CDT | Thunderstorm Wind 50 | Ramsey, IL |
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 |
|---|---|---|---|
| Jun 1, 4:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 1.8 hours before the alert went out and 133 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
- 1323 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 945 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 162 m²/s²
- 0-3 km storm-relative helicity
- 315 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 7.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, 7:14 PM CDT, 1 hour 35 minutes before
ILZ095>097-MOZ009-010-018-019-026-027-034>036-041-042-047-048- 050>052-060-020315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 714 PM CDT TUE JUN 1 1999 ...TORNADO WATCH 351 FOR PORTION OF CENTRAL...EAST CENTRAL AND MOST OF NORTHEAST MISSOURI HAS BEEN CANCEL... CITIES IN THIS WATCH WERE COLUMBIA...QUINCY...HANNIBAL...MEXICO...PALMYRA AND TROY. WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WERE STILL PRESENT ACROSS THE AREA THIS EVENING. AT THIS TIME SEVERE STORMS HAVE MOVED TO THE SOUTHEAST AND WILL NOT EFFECT THE AREA ANY LONGER THIS EVENING. HOWEVER...STAY TUNE WITH NOAA WEATHER RADIO IN ORDER TO BE INFORM WITH OUR CURRENT WEATHER SITUATION.
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 7:25 PM CDT | Tornado Warning | LSX | Jefferson | 50 min |
| Jun 1, 7:27 PM CDT | Tornado Warning | LSX | Washington | 48 min |
| Jun 1, 7:32 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis | 48 min |
| Jun 1, 7:36 PM CDT | Tornado Warning | LSX | Crawford | 49 min |
| Jun 1, 9:58 PM CDT | Severe Thunderstorm Warning | LSX | Reynolds | 62 min |
| Jun 1, 7:39 PM CDT | Tornado Warning | LSX | Macoupin | 46 min |
| Jun 1, 7:43 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 47 min |
| Jun 1, 8:03 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 47 min |
| Jun 1, 8:05 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 35 min |
| Jun 1, 8:07 PM CDT | Tornado Warning | LSX | Fayette | 33 min |
| Jun 1, 8:09 PM CDT | Tornado Warning | LSX | Montgomery | 36 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.