Alert archive / Missouri / Flash Flood Warnings in 1998
Flash Flood Warning 10, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jun 29, 1998, 9:15 PM CDT for Montgomery County, Warren County, Missouri. It was in force for 4 hr. 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 29, 1998, 9:15 PM CDT (02:15 UTC)
- Expired
- Jun 30, 1998, 1:15 AM CDT
- In force
- 4 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Montgomery County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 57 km from the middle of the area, began a volume at 02:14 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.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 2.3 hours before the alert went out and 308 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
- 1641 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 1639 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 4.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 300216 FFWSTL MOC007-137-139-205-219-300615- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 915 PM CDT MON JUN 29 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * FLASH FLOOD WARNING FOR... AUDRAIN COUNTY IN CENTRAL MISSOURI MONROE COUNTY MISSOURI IN NORTHEASTERN MISSOURI MONTGOMERY COUNTY MISSOURI IN EASTERN MISSOURI SHELBY COUNTY IN NORTHEASTERN MISSOURI WARREN COUNTY IN EAST CENTRAL MISSOURI * UNTIL 115 AM CDT * AT 915 PM CDT...DOPPLER RADAR INDICATED CLUSTERS OF THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER SHELBY...MONROE...AUDRAIN... MONTGOMERY AND WARREN COUNTIES. * FLOODING WAS REPORTED BY TROOP B ACROSS PORTIONS OF MONROE COUNTY. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IT IS VERY DIFFICULT AT NIGHT TO TELL HOW DEEP THE WATER MAY BE. MOTORISTS SHOULD NEVER DRIVE THROUGH WATER OF UNKNOWN DEPTH. TPS
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 7:17 PM CDT | Tornado Warning | LSX | Knox | 48 min |
| Jun 29, 7:31 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 49 min |
| Jun 29, 7:39 PM CDT | Tornado Warning | LSX | Shelby | 46 min |
| Jun 29, 7:52 PM CDT | Tornado Warning | LSX | Monroe | 33 min |
| Jun 29, 8:06 PM CDT | Tornado Warning | LSX | Audrain | 49 min |
| Jun 29, 8:33 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 47 min |
| Jun 29, 8:42 PM CDT | Tornado Warning | LSX | Montgomery | 48 min |
| Jun 29, 9:08 PM CDT | Tornado Warning | LSX | Warren | 47 min |
| Jun 29, 9:15 PM CDT | Flash Flood Warning | LSX | Audrain, Monroe, Shelby | 4 hr |
| Jun 29, 10:01 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson | 44 min |
| Jun 29, 10:31 PM CDT | Flash Flood Warning | LSX | Callaway, Gasconade | 3 hr |
| Jun 29, 10:31 PM CDT | Flash Flood Warning | LSX | Boone | 3 hr |
Nearby
Flash Flood Warnings in Missouri, 1998Every flash flood 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.