Alert archive / Kansas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 17, NWS Topeka, KS
NWS Topeka, KS issued this severe thunderstorm warning at Apr 30, 1997, 7:18 AM CDT for Jefferson County, Kansas. It was in force for 47 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
- Apr 30, 1997, 7:18 AM CDT (12:18 UTC)
- Expired
- Apr 30, 1997, 8:05 AM CDT
- In force
- 47 min
- Issued by
- NWS Topeka, KS
- Area
- Whole counties
County Jefferson County, KS
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 0.3 hours before the alert went out and 34 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
- 705 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTOP 301219 RRA SVRTOP KSC087-301305- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TOPEKA KS 718 AM CDT WED APR 30 1997 * SEVERE THUNDERSTORM WARNING FOR JEFFERSON COUNTY - NORTHEAST KANSAS * UNTIL 805 AM CDT * SOME LOCATIONS AFFECTED PERRY LAKE VALLEY FALLS OZAWKIE OSKALOOSA GRANTVILLE * AT 715 AM CDT RADAR INDICATED A SEVERE THUNDERSTORM JUST NORTHEAST OF TOPEKA NEAR GRANTVILLE MOVING NORTHEAST ATp 45 MPH. * THE STORM WILL BE NEAR PERRY LAKE BY 725 AM OSKALOOSA BY 730 AM VALLEY FALLS BY 735 AM * REPORTS LARGE HAIL IN TOPEKA AT 705 AM THIS STORM HAS A HISTORY OF LARGE HAIL. STAY INDOORS AWAY FROM WINDOWS! &
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, Apr 30, 3:40 AM CDT, 3 hours 38 minutes before
KSZ008>012-020>024-034>038-054-300935- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 340 AM CDT WED APR 30 1997 ...SEVERE THUNDERSTORM WATCH 216 WHICH WAS IN EFFECT UNTIL 5 AM CDT FOR NORTHCENTRAL AND PORTIONS OF NORTHEAST AND EASTCENTRAL KANSAS HAS BEEN CANCELLED... THUNDERSTORMS HAVE CONTINUED TO WEAKEN ACROSS MUCH OF NORTHEAST AND NORTHCENTRAL KANSAS SINCE 3 AM. THE THREAT FOR ANY ADDITIONAL SEVERE THUNDERSTORM DEVELOPMENT HAS DIMINISHED. THEREFORE THE SEVERE THUNDERSTORM WATCH WHICH WAS TO BE IN EFFECT UNTIL 5 AM HAS BEEN CANCELLED. SW
Special weather statement, Apr 30, 3:42 AM CDT, 3 hours 36 minutes before
KSZ008>012-020>024-034>038-054-300935- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 340 AM CDT WED APR 30 1997 ...SEVERE THUNDERSTORM WATCH #216 WHICH WAS IN EFFECT UNTIL 5 AM CDT FOR NORTHCENTRAL AND PORTIONS OF NORTHEAST AND EASTCENTRAL KANSAS HAS BEEN CANCELLED... THUNDERSTORMS HAVE CONTINUED TO WEAKEN ACROSS MUCH OF NORTHEAST AND NORTHCENTRAL KANSAS SINCE 3 AM. THE THREAT FOR ANY ADDITIONAL SEVERE THUNDERSTORM DEVELOPMENT HAS DIMINISHED. THEREFORE THE SEVERE THUNDERSTORM WATCH WHICH WAS TO BE IN EFFECT UNTIL 5 AM HAS BEEN CANCELLED. SW
The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 1:17 AM CDT | Severe Thunderstorm Warning | TOP | Marshall | 43 min |
| Apr 30, 5:49 AM CDT | Severe Thunderstorm Warning | TOP | Morris | 26 min |
| Apr 30, 6:08 AM CDT | Severe Thunderstorm Warning | TOP | Wabaunsee | 47 min |
| Apr 30, 6:56 AM CDT | Severe Thunderstorm Warning | TOP | Shawnee | 34 min |
| Apr 30, 7:14 AM CDT | Severe Thunderstorm Warning | TOP | Jackson | 31 min |
Nearby
Severe Thunderstorm Warnings in Kansas, 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.