Alert archive / Missouri / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 215, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Aug 4, 1996, 4:12 PM CDT for Franklin County, Missouri. It was in force for 63 min. 2 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
- Aug 4, 1996, 4:12 PM CDT (21:12 UTC)
- Expired
- Aug 4, 1996, 5:15 PM CDT
- In force
- 63 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 21:23 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 |
|---|---|---|---|
| Aug 4, 4:25 PM CDT | Thunderstorm Wind 52 | Union, MO | |
| Aug 4, 4:40 PM CDT | Thunderstorm Wind 52 | St Clair, 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 nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 9.2 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
- 143 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 813 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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, Aug 4, 3:19 PM CDT, 53 minutes before
MOZ060-042115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 309 PM CDT SUN AUG 4 1996 ...STRONG THUNDERTORMS MOVING INTO WARREN COUTNY... AT 310 PM...RADAR INDICATED STRONG THUNDERSTORMS MOVING THROUGH WARREN COUNTY. THESE STORMS WERE MOVING TO THE SOUTHEAST AT 30 MPH. AN AREA OF HEAVY RAIN EXTENDED FROM WRIGHT CITY SOUTH TO WARRENTON AND SOUTH TO NEW HAVEN. THESE STORMS WILL CONTAIN GUSTY WINDS...SMALL HAIL...AND DANGEROUS LIGHTNING. SEEK SHELTER IF NECESSARY. ALBERS
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 1:14 PM CDT | Severe Thunderstorm Warning | LSX | Ralls | 31 min |
| Aug 4, 1:45 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 45 min |
| Aug 4, 2:31 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 59 min |
| Aug 4, 5:00 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Washington | 60 min |
| Aug 4, 5:44 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 61 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1996Every severe thunderstorm warning in 1996
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.