Alert archive / Missouri / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 46, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 2, 1997, 8:53 PM CDT for Audrain County, Boone County, Missouri. It was in force for 52 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
- May 2, 1997, 8:53 PM CDT (01:53 UTC)
- Expired
- May 2, 1997, 9:45 PM CDT
- In force
- 52 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Audrain County, MO, Boone County, MO
The radar
The St Louis radar (KLSX), 129 km from the middle of the area, began a volume at 01:54 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, 1.9 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
- 47 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 1366 m above ground
- 0-6 km bulk shear
- 99 kt
- 0-1 km storm-relative helicity
- -192 m²/s²
- 0-3 km storm-relative helicity
- -66 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -2.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 030154 RRA SVRSTL MOC019-007-030245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 853 PM CDT FRI MAY 2 1997 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 945 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL MISSOURI ...NORTHERN BOONE COUNTY IN EAST CENTRAL MISSOURI ...WESTERN AUDRAIN COUNTY AT 855 PM...RADAR SHOWED A SEVERE THUNDERSTORM NEAR STURGEON OVER NORTHERN BOONE COUNTY MOVING TO THE NORTHEAST AT 30 MPH. THIS STORM WILL LIKELY PRODUCE HAIL TO INCH IN DIAMETER IN STURGEON AND NEAR CENTRAILA. SEEK SHELTER IN A STURDY BUILDING. REMEMBER SEVERE THUNDERSTORMS OFTEN 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, May 2, 7:16 PM CDT, 1 hour 37 minutes before
ILZ064-065-069-070-074-079-100>102-MOZ041-047>051-059>065-072>075- 084-085-099-030315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 716 PM CDT FRI MAY 2 1997 ...TORNADO WATCH 233 FOR SOUTHEAST MISSOURI AND A SMALL PORTION OF SOUTHWEST ILLINOIS HAS EXPIRED... ...SEVERE THUNDERSTORM WATCH 235 IS NO LONGER IN EFFECT FOR PORTIONS OF CENTRAL MISSOURI... THE TORNADO WATCH WHICH WAS ISSUED FOR A LARGE PORTION OF SOUTHEAST MISSOURI AND MUCH OF SOUTHWEST AND SOUTHERN ILLINOIS HAS EXPIRED AND IS NO LONGER IN EFFECT. THE WATCH HAS EXPIRED FOR THE FOLLOWING COUNTIES IN ILLINOIS...FAYETTE...MARION...BOND...CLINTON... WASHINGTON...AND RANDOLPH COUNTIES. IN MISSOURI...STE. GENEVIEVE..ST. FRANCOIS...AND MADISON COUNTIES IN SOUTHEAST MISSOURI. FURTHER WEST...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR A LARGE PART OF SOUTHEAST AND EAST CENTRAL MISSOURI...BUT HAS BEEN CANCELLED FOR SIX COUNTIES IN CENTRAL MISSOURI...BOONE...MONITEAU.. COLE...CALLAWAY...OSAGE...MONTGOMERY COUNTIES IN CENTRAL MISSOURI. THIS INCLUDES THE CITIES OF JEFFERSON CITY AND COLUMBIA. LOCALLY SEVERE THUNDERSTORMS ARE STILL A POSSIBILITY FOR MUCH OF THE REST OF THE AREA THIS EVENING AND SEVERE THUNDERSTORM WATCH 235 REMAINS IN EFFECT...INCLUDING THE ST LOUIS METRO AREA. RESIDENTS SHOULD KEEP ABREAST OF LOCAL WEATHER CONDITIONS AND POSSIBLE SEVERE WEATHER WARNINGS OR STATEMENTS FROM THE NATIONAL WEATHER SERVICE. PEDIGO
Special weather statement, May 2, 7:18 PM CDT, 1 hour 35 minutes before
ILZ064-065-069-070-074-079-100>102-MOZ041-047>051-059>065-072>075- 084-085-099-030315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 716 PM CDT FRI MAY 2 1997 ...TORNADO WATCH 233 FOR SOUTHEAST MISSOURI AND A SMALL PORTION OF SOUTHWEST ILLINOIS HAS EXPIRED... ...SEVERE THUNDERSTORM WATCH 235 IS NO LONGER IN EFFECT FOR PORTIONS OF CENTRAL MISSOURI... THE TORNADO WATCH WHICH WAS ISSUED FOR A LARGE PORTION OF SOUTHEAST MISSOURI AND MUCH OF SOUTHWEST AND SOUTHERN ILLINOIS HAS EXPIRED AND IS NO LONGER IN EFFECT. THE WATCH HAS EXPIRED FOR THE FOLLOWING COUNTIES IN ILLINOIS...FAYETTE...MARION...BOND...CLINTON... WASHINGTON...AND RANDOLPH COUNTIES. IN MISSOURI...STE. GENEVIEVE..ST. FRANCOIS...AND MADISON COUNTIES IN SOUTHEAST MISSOURI. FURTHER WEST...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR A LARGE PART OF SOUTHEAST AND EAST CENTRAL MISSOURI...BUT HAS BEEN CANCELLED FOR SIX COUNTIES IN CENTRAL MISSOURI...BOONE...MONITEAU.. COLE...CALLAWAY...OSAGE...MONTGOMERY COUNTIES IN CENTRAL MISSOURI. THIS INCLUDES THE CITIES OF JEFFERSON CITY AND COLUMBIA. LOCALLY SEVERE THUNDERSTORMS ARE STILL A POSSIBILITY FOR MUCH OF THE REST OF THE AREA THIS EVENING AND SEVER E THUNDERSTORM WATCH 235 REMAINS IN EFFECT...INCLUDING THE ST LOUIS METRO AREA. RESIDENTS SHOULD KEEP ABREAST OF LOCAL WEATHER CONDITIONS AND POSSIBLE SEVERE WEATHER WARNINGS OR STATEMENTS FROM THE NATIONAL WEATHER SERVICE. PEDIGO
Special weather statement, May 2, 7:20 PM CDT, 1 hour 33 minutes before
MOZ070-081>082-091>092-096-105-030315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD MO 720 PM CDT FRI MAY 2 1997 THE NATIONAL WEATHER SERVICE IN SPRINGFIELD MO HAS CANCELLED SEVERE THUNDERSTORM WATCH NUMBER 235 FOR THE FOLLOWING COUNTIES... MILLER PULASKI LACLEDE WEBSTER WRIGHT DOUGLAS OZARK THE WATCH REMAINS IN EFFECT FOR HOWELL TEXAS PHELPS MARIES DENT SHANNON AND OREGON COUNTIES UNTIL 10PM. THE AREA OF STRONG TO SEVERE THUNDERSTORMS WHICH PUSHED THROUGH SECTIONS OF SOUTHWEST MISSOURI EARLIER THIS EVENING HAS MOVED INTO SOUTH CENTRAL MISSOURI AND WILL NO LONGER AFFECT THE COUNTIES BEING CLEARED FROM THE WATCH. THE STORMS ARE EXPECTED TO PUSH OUT OF SOUTH CENTRAL MISSOURI BY 9PM. LINDENBERG
Special weather statement, May 2, 8:10 PM CDT, 43 minutes before
MOZ059>062-072-030315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 810 PM CDT FRI MAY 2 1997 ...SEVERE THUNDERSTORM WATCH 235 IS NO LONGER IN EFFECT FOR PORTIONS OF EAST CENTRAL MISSOURI... THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS CANCELLED SEVERE THUNDERSTORM WATCH NUMBER 235 FOR THE FOLLOWING COUNTIES IN EAST CENTRAL MISSOURI... ST. CHARLES...WARREN...FRANKLIN...CRAWFORD...AND GASCONADE COUNTIES...INCLUDING THE CITIES OF ST. CHARLES...UNION...AND STEELEVILLE. SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE THIS EVENING...BUT THE THREAT FOR SEVERE STORMS IN THE ABOVE MENTIONED AREAS HAS DIMINISHED SUBSTANTIALLY. PEDIGO
Special weather statement, May 2, 8:11 PM CDT, 42 minutes before
MOZ059>062-072-030315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 810 PM CDT FRI MAY 2 1997 ...SEVERE THUNDERSTORM WATCH 235 IS NO LONGER IN EFFECT FOR PORTIONS OF EAST CENTRAL MISSOURI... THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS CANCELLED SEVERE THUNDERSTORM WATCH NUMBER 235 FOR THE FOLLOWING COUNTIES IN EAST CENTRAL MISSOURI... ST. CHARLES...WARREN...FRANKLIN...CRAWFORD...AND GASCONADE COUNTIES...INCLUDING THE CITIES OF ST. CHARLES...UNION...AND STEELEVILLE. SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE THIS EVENING...BUT THE THREAT FOR SEVERE STORMS IN THE ABOVE MENTIONED AREAS HAS DIMINISHED SUBSTANTIALLY. PEDIGO
Special weather statement, May 2, 8:22 PM CDT, 31 minutes before
MOZ058-071-082>083-097>098-106-030415- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD MO 822 PM CDT FRI MAY 2 1997 ...SEVERE THUNDERSTORM WATCH 235 HAS BEEN CANCELLED FOR SOUTH CENTRAL MISSOURI... THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING SOUTH CENTRAL MISSOURI COUNTIES... MARIES PHELPS DENT TEXAS SHANNON HOWELL OREGON THE STRONG TO SEVERE THUNDERSTORMS HAVE PUSHED EAST OF THE AREA AND ARE NO LONGER A THREAT TO PRODUCE SEVERE WEATHER FOR THE ABOVE MENTIONED COUNTIES. LINDENBERG
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 9:01 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 44 min |
| May 2, 9:19 PM CDT | Severe Thunderstorm Warning | LSX | Ralls | 41 min |
| May 2, 9:30 PM CDT | Severe Thunderstorm Warning | LSX | Scotland | 45 min |
| May 2, 9:37 PM CDT | Severe Thunderstorm Warning | LSX | Knox | 53 min |
| May 2, 10:08 PM CDT | Severe Thunderstorm Warning | LSX | Shelby | 52 min |
| May 2, 10:25 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 50 min |
| May 2, 10:35 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery | 40 min |
| May 2, 10:44 PM CDT | Severe Thunderstorm Warning | LSX | Pike, Ralls | 31 min |
| May 2, 11:21 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 39 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1997Every severe thunderstorm warning in 1997
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.