Alert archive / Kansas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 142, NWS Topeka, KS
NWS Topeka, KS issued this severe thunderstorm warning at Sep 8, 1997, 9:27 PM CDT for Washington County, Kansas. It was in force for 48 min. 8 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
- Sep 8, 1997, 9:27 PM CDT (02:27 UTC)
- Expired
- Sep 8, 1997, 10:15 PM CDT
- In force
- 48 min
- Issued by
- NWS Topeka, KS
- Area
- Whole counties
County Washington County, KS
The radar
The Topeka radar (KTWX), 114 km from the middle of the area, began a volume at 02:29 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 |
|---|---|---|---|
| Sep 8, 9:40 PM CDT | Hail 1.75 | Mahaska, KS | |
| Sep 8, 9:50 PM CDT | Hail 1.75 | Haddam, KS | |
| Sep 8, 9:50 PM CDT | Thunderstorm Wind 61 | Haddam, KS | |
| Sep 8, 9:55 PM CDT | Hail 0.75 | Morrowville, KS | |
| Sep 8, 9:55 PM CDT | Thunderstorm Wind 57 | Morrowville, KS | |
| Sep 8, 10:00 PM CDT | Hail 0.75 | Vining, KS | |
| Sep 8, 10:00 PM CDT | Thunderstorm Wind 57 | Vining, KS | |
| Sep 8, 10:20 PM CDT | Hail 0.75 | Palmer, KS |
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
Topeka, KS (KTOP), launched 00:00Z, 2.5 hours before the alert went out and 152 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
- 2048 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 1680 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KTOP 090227 RRA
SVRTOP
KSC201-090315-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
927 PM CDT MON SEP 8 1997
* SEVERE THUNDERSTORM WARNING FOR
WESTERN WASHINGTON COUNTY - NORTH CENTRAL KANSAS
* UNTIL 1015 PM CDT
* SOME LOCATIONS AFFECTED
HADDAM
CLARA
BRANTFORD
* AT 925 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 12 MILES
NORTH OF BELLEVILLE...NEAR CHESTER NEBRASKA MOVING SOUTH-SOUTHEAST
AT 40 MPH.
* REPORTS
THIS STORM HAS A HISTORY OF PRODUCING WINDS GUSTS TO OVER
60 MPH AND LARGE HAIL
DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS!
SW/BBThe office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 9:18 PM CDT | Severe Thunderstorm Warning | TOP | Republic | 42 min |
| Sep 8, 10:05 PM CDT | Severe Thunderstorm Warning | TOP | Clay, Riley, Washington | 60 min |
| Sep 8, 10:38 PM CDT | Severe Thunderstorm Warning | TOP | Clay | 32 min |
| Sep 8, 11:00 PM CDT | Severe Thunderstorm Warning | TOP | Dickinson, Geary, Morris | 55 min |
| Sep 8, 11:39 PM CDT | Severe Thunderstorm Warning | TOP | Morris | 46 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.