Alert archive / Missouri / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 28, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 6, 1993, 4:33 PM CDT for Saint Louis County, Missouri. It was in force for 57 min.
The area
The counties it named.
The facts
- Issued
- May 6, 1993, 4:33 PM CDT (21:33 UTC)
- Expired
- May 6, 1993, 5:30 PM CDT
- In force
- 57 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Saint Louis County, MO
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 12:00Z, 9.6 hours before the alert went out and 232 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
- 460 J/kg
- Mixed-layer CIN
- -140 J/kg
- Mixed-layer LCL
- 1210 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, May 6, 4:04 PM CDT, 29 minutes before
MOZALL-062300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 404 PM CDT THU MAY 6 1993 ...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR MOST OF EASTERN MISSOURI UNTIL 1000 PM THIS THURSDAY EVENING... ...A TORNADO WATCH REMAINS IN EFFECT FOR NORTHWEST MISSOURI UNTIL 1000 PM CDT... ...A TORNADO WATCH REMAINS IN EFFECT FOR WEST CENTRAL AND SOUTHWEST MISSOURI UNTIL 900 PM CDT... THE NATIONAL WEATHER SERVICE HAS ISSUED A NEW SEVERE THUNDERSTORM WATCH FOR MOST OF EASTERN MISSOURI UNTIL 1000 PM. THIS INCLUDES THE QUINCY/ HANNIBAL AREAS...ST LOUIS AND CAPE GIRARDEAU. CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THIS AREA. IN WESTERN MISSOURI SEVERE THUNDERSTORMS LATE THIS AFTERNOON AND EVENING MAY PRODUCE TORNADOES. THIS IS A DANGEROUS WEATHER SITUATION. IF YOU LIVE IN OR CLOSE TO A TORNADO WATCH...KEEP ALERT FOR SEVERE WEATHER. IF A THUNDERSTORM MOVES INTO YOUR AREA...BE READY TO TAKE ACTION IF A WARNING IS ISSUED OR A TORNADO SPOTTED. LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS BY LISTENING TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO AND TELEVISION STATIONS. SHEA : ; ! &0!N\jt!H~r>F2." g
Special weather statement, May 6, 4:05 PM CDT, 28 minutes before
MOZALL-062300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 404 PM CDT THU MAY 6 1993 ...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR MOST OF EASTERN MISSOURI UNTIL 1000 PM THIS THURSDAY EVENING... ...A TORNADO WATCH REMAINS IN EFFECT FOR NORTHWEST MISSOURI UNTIL 1000 PM CDT... ...A TORNADO WATCH REMAINS IN EFFECT FOR WEST CENTRAL AND SOUTHWEST MISSOURI UNTIL 900 PM CDT... THE NATIONAL WEATHER SERVICE HAS ISSUED A NEW SEVERE THUNDERSTORM WATCH FOR MOST OF EASTERN MISSOURI UNTIL 1000 PM. THIS INCLUDES THE QUINCY/ HANNIBAL AREAS...ST LOUIS AND CAPE GIRARDEAU. CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THIS AREA. IN WESTERN MISSOURI SEVERE THUNDERSTORMS LATE THIS AFTERNOON AND EVENING MAY PRODUCE TORNADOES. THIS IS A DANGEROUS WEATHER SITUATION. IF YOU LIVE IN OR CLOSE TO A TORNADO WATCH...KEEP ALERT FOR SEVERE WEATHER. IF A THUNDERSTORM MOVES INTO YOUR AREA...BE READY TO TAKE ACTION IF A WARNING IS ISSUED OR A TORNADO SPOTTED. LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS BY LISTENING TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO AND TELEVISION STATIONS. SHEA
Special weather statement, May 6, 4:15 PM CDT, 18 minutes before
MOZ003-007-011-012-062215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 415 PM CDT THU MAY 6 1993 ...STRONG THUNDERSTORMS DEVELOPING OVER EASTERN MISSOURI... AT 415 PM...NATIONAL WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS DEVELOPING OVER NORTHEAST MISSOURI. THIS LINE OF STORMS EXTENDED FROM JUST NORTHEAST OF KIRKSVILLE TO NEAR UNION IN FRANKLIN COUNTY. UNION IS ABOUT 45 MILES WEST OF ST LOUIS. THE STORMS WERE PUSHING NORTHEAST AT 10 TO 15 MILES AN HOUR...AND SMALL HAIL...WINDS OF 40 TO 50 MILES AN HOUR...AND EXTREMELY HEAVY RAINS...CAN BE EXPECTED WITH THE PASSAGE OF ONE OF THESE STORMS. NO SEVERE WEATHER HAS BEEN REPORTED WITH LINE OF STORMS...BUT DAMAGING HAIL HAS ALREADY BEEN REPORTED WITH A STORM FURTHER EAST IN THE ST LOUIS AREA. SEVERE WEATHER MAY ALSO DEVELOP ALONG THIS LINE OF STORMS LATER THIS AFTERNOON AND EVENING...AND A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MUCH OF EASTERN MISSOURI UNTIL 10 PM. TRUETT
Special weather statement, May 6, 4:15 PM CDT, 18 minutes before
MOZ003-007-011-012-062215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 415 PM CDT THU MAY 6 1993 ...STRONG THUNDERSTORMS DEVELOPING OVER EASTERN MISSOURI... AT 415 PM...NATIONAL WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS DEVELOPING OVER NORTHEAST MISSOURI. THIS LINE OF STORMS EXTENDED FROM JUST NORTHEAST OF KIRKSVILLE TO NEAR UNION IN FRANKLIN COUNTY. UNION IS ABOUT 45 MILES WEST OF ST LOUIS. THE STORMS WERE PUSHING NORTHEAST AT 10 TO 15 MILES AN HOUR...AND SMALL HAIL...WINDS OF 40 TO 50 MILES AN HOUR...AND EXTREMELY HEAVY RAINS...CAN BE EXPECTED WITH THE PASSAGE OF ONE OF THESE STORMS. NO SEVERE WEATHER HAS BEEN REPORTED WITH LINE OF STORMS...BUT DAMAGING HAIL HAS ALREADY BEEN REPORTED WITH A STORM FURTHER EAST IN THE ST LOUIS AREA. SEVERE WEATHER MAY ALSO DEVELOP ALONG THIS LINE OF STORMS LATER THIS AFTERNOON AND EVENING...AND A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MUCH OF EASTERN MISSOURI UNTIL 10 PM. TRUETT
Special weather statement, May 6, 4:30 PM CDT, 3 minutes before
MOZ006-009-010-011-013-014-062300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 430 PM CDT THU MAY 6 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PARTS OF EASTERN MISSOURI UNTIL 10 PM... AT 430 PM...SCATTERED STRONG THUNDERSTORMS WERE LOCATED IN A LINE THAT EXTENDED FROM JUST EAST OF KIRKSVILLE...TO 30 MILES SOUTHWEST OF ST LOUIS. OVER THE REMAINDER OF THE REGION...THE THUNDERSTORMS WERE ISOLATED AND DID NOT APPEAR TO BE A SEVERE WEATHER THREAT. THE STORMS WERE MOVING NORTHEAST AT 30 MPH. RESIDENTS IN CENTRAL MISSOURI...PRIMARILY IN THE EASTERN PART...SHOULD REMAIN ON THE ALERT FOR POSSIBLE SEVERE WEATHER...INCLUDING HAIL... DAMAGING WINDS...DANGEROUS LIGHTNING...AND BRIEF BUT HEAVY DOWNPOURS. THE THREAT OF THUNDERSTORMS WILL DIMINISH LATE THIS EVENING...BUT A FEW STORMS MAY PERSIST INTO THE NIGHT. PERLOW
Special weather statement, May 6, 4:33 PM CDT, 0 minutes before
MOZ006-009-010-011-013-014-062300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 430 PM CDT THU MAY 6 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PARTS OF EASTERN MISSOURI UNTIL 10 PM... AT 430 PM...SCATTERED STRONG THUNDERSTORMS WERE LOCATED IN A LINE THAT EXTENDED FROM JUST EAST OF KIRKSVILLE...TO 30 MILES SOUTHWEST OF ST LOUIS. OVER THE REMAINDER OF THE REGION...THE THUNDERSTORMS WERE ISOLATED AND DID NOT APPEAR TO BE A SEVERE WEATHER THREAT. THE STORMS WERE MOVING NORTHEAST AT 30 MPH. RESIDENTS IN CENTRAL MISSOURI...PRIMARILY IN THE EASTERN PART...SHOULD REMAIN ON THE ALERT FOR POSSIBLE SEVERE WEATHER...INCLUDING HAIL... DAMAGING WINDS...DANGEROUS LIGHTNRING...AND BRIEF BUT HEAVY DOWNPOURS. THE THREAT OF THUNDERSTORMS WILL DIMINISH LATE THIS EVENING...BUT A FEW STORMS MAY PERSIST INTO THE NIGHT. PERLOW
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 3:37 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 53 min |
| May 6, 4:25 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 65 min |
| May 6, 4:44 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 61 min |
| May 6, 4:50 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Warren | 55 min |
| May 6, 5:44 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 46 min |
| May 6, 6:31 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis | 44 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1993Every severe thunderstorm warning in 1993
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.