Alert archive / Missouri / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 134, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 22, 1998, 1:04 AM CDT for Knox County, Missouri. It was in force for 61 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 22, 1998, 1:04 AM CDT (06:04 UTC)
- Expired
- May 22, 1998, 2:05 AM CDT
- In force
- 61 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Knox County, MO
The radar
The St Louis radar (KLSX), 203 km from the middle of the area, began a volume at 06:23 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 21, 11:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 6.1 hours before the alert went out and 216 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2074 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- -65 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
669 WUUS1 KSTL 220605 RRA SVRSTL MOC103-220705- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 104 AM CDT FRI MAY 22 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... KNOX COUNTY IN NORTHEASTERN MISSOURI * UNTIL 205 AM CDT * AT 100 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS JUST ENTERING NORTHERN KNOX COUNTY... MOVING SOUTHEAST AT 30 MPH. * LOCATIONS THAT WILL BE AFFECTED... GREENSBURG BARING EDINA 62 MPH WINDS REPORTED WITH THIS STORM IN KIRKSVILLE THIS STORM HAS A HISTORY OF DAMAGING WINDS. MOVE QUICKLY TO A STURDY BUILDING AND STAY AWAY FROM DOORS AND WINDOWS. CA/AMS &
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 21, 8:10 PM CDT, 4 hours 54 minutes before
MOZ072>075-084-085-099-220145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 810 PM CDT THU MAY 21 1998 ...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR A PORTION OF EAST CENTRAL AND SOUTHEAST MISSOURI... THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES... IN MISSOURI...CRAWFORD...WASHINGTON...ST. FRANCOIS...STE. GENEVIEVE ...REYNOLDS...IRON...AND MADISON SHOWERS AND THUNDERSTORMS WILL END OVER THIS AREA THIS EVENING. MORE SHOWERS AND THUNDERSTORMS ARE LIKELY AGAIN OVERNIGHT. AMS
Special weather statement, May 21, 8:10 PM CDT, 4 hours 54 minutes before
MOZ072>075-084-085-099-220145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 810 PM CDT THU MAY 21 1998 ...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR A PORTION OF EAST CENTRAL AND SOUTHEAST MISSOURI... THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES... IN MISSOURI...CRAWFORD...WASHINGTON...ST. FRANCOIS...STE. GENEVIEVE ...REYNOLDS...IRON...AND MADISON SHOWERS AND THUNDERSTORMS WILL END OVER THIS AREA THIS EVENING. MORE SHOWERS AND THUNDERSTORMS ARE LIKELY AGAIN OVERNIGHT. AMS
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 7:12 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 48 min |
| May 22, 12:40 AM CDT | Severe Thunderstorm Warning | LSX | Scotland | 60 min |
| May 22, 1:20 AM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 65 min |
| May 22, 1:27 AM CDT | Severe Thunderstorm Warning | LSX | Clark, Lewis | 63 min |
| May 22, 1:52 AM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 63 min |
| May 22, 1:57 AM CDT | Severe Thunderstorm Warning | LSX | Marion, Shelby | 63 min |
| May 22, 2:34 AM CDT | Severe Thunderstorm Warning | LSX | Ralls | 61 min |
| May 22, 2:48 AM CDT | Severe Thunderstorm Warning | LSX | Pike | 62 min |
| May 22, 5:01 PM CDT | Severe Thunderstorm Warning | LSX | Osage | 49 min |
| May 22, 5:25 PM CDT | Severe Thunderstorm Warning | LSX | Gasconade | 45 min |
| May 22, 5:55 PM CDT | Severe Thunderstorm Warning | LSX | Crawford | 50 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1998Every severe thunderstorm 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.