Alert archive / Kansas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 92, NWS Topeka, KS
NWS Topeka, KS issued this severe thunderstorm warning at Jun 20, 1998, 8:56 PM CDT for Coffey County, Kansas. It was in force for 29 min. 1 report 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
- Jun 20, 1998, 8:56 PM CDT (01:56 UTC)
- Expired
- Jun 20, 1998, 9:25 PM CDT
- In force
- 29 min
- Issued by
- NWS Topeka, KS
- Area
- Whole counties
County Coffey County, KS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 20, 9:20 PM CDT | Hail 0.75 | Burlington, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 20, 3:15 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 1.9 hours before the alert went out and 85 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
- 4942 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 1090 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 337 m²/s²
- 0-3 km storm-relative helicity
- 629 m²/s²
- Significant tornado parameter
- 13.7
- Supercell composite
- 52.8
The text
As transmitted, in the capitals the NWS used until 2016.
725
WUUS1 KTOP 210158 RRA
SVRTOP
KSC031-210225-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
856 PM CDT SAT JUN 20 1998
THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
COFFEY COUNTY IN EAST CENTRAL KANSAS
* UNTIL 925 PM CDT
* AT 853 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 4 MILES WEST OF JOHN REDMOND RESERVOIR...OR
ABOUT 20 MILES SOUTHEAST OF EMPORIA...MOVING EAST AT 35 MILES PER
HOUR.
* SOME LOCATIONS AFFECTED...
JOHN REDMOND RESERVOIR
LEBO
WAVERLY
GRIDLEY
LE ROY
BURLINGTON
A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES.
LARGE HAIL...VERY HEAVY RAIN AND DAMAGING WINDS ARE LIKELY WITH THIS
STORM. TAKE COVER IN A SUBSTANTIAL SHELTER UNTIL THE STORM PASSES.
STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE
LATEST SEVERE WEATHER INFORMATION.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.
NWS Topeka, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 20, 3:13 PM CDT, 5 hours 43 minutes earlier.
Area forecast discussion, Jun 20, 3:13 PM CDT, 5 hours 43 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TOPEKA KS 313 PM CDT SAT JUN 20 1998 ...LINGERING CONCERN FOR THUNDERSTORM CHANCES THIS FORECAST... WILL FOLLOW ETA FORECAST THIS CYCLE. WITH CONVECTION THIS EVENING AND FRONTAL BOUNDARY PUSHED/MOVING TO THE SOUTH OF OUR CWA LATER TONIGHT AND SUNDAY...PREFER TO DROP TSTM CHCS ON SUNDAY EXCEPT PERHAPS ALONG SOUTHERN COUNTIES. ETA HAS BOUNDARY TO THE SOUTH OF OUR AREA DURING SUNDAY BUT THETA-E ADVECTION AND VERTICAL MOTION SUPPORT ANOTHER ROUND OF CONVECTION SUNDAY NIGHT. EXACT PLACEMENT WILL DEPEND ON HOW MUCH PUSH FRONT GETS FROM EVENING CONVECTION. TEMPERATURES PRETTY MUCH LIKE MOS GUIDANCE THROUGH TIME. CAN'T SEE MUCH TO CHANGE IN THAT REGARD. IN THE SHORT TERM...LOW AND SFC BNDRY EXPECTED TO PUSH THROUGH AREA WITH ASSOCIATED CONVECTION EARLY IN FORECAST PERIOD. CAP RATHER STRONG BUT EXPECTED TO BREAK SOON WITH EXCESSIVE AND RECORD BREAKING HEAT INTO AREA. OUTFLOW BOUNDARY ENHANCING MOISTURE CONVERGENCE OUR AREA TOO. NOTE ON MOISTURE CHANNEL A SUBTLE TWIST INTO FRONT RANGE OF THE ROCKIES AT EARLY AFTERNOON. THIS WAVE SHOULD MOVE OVER AREA THIS EVENING PROVIDING FORECAST COOLING ALFT. .TOP...NONE
In the hours before
Special weather statement, Jun 20, 8:36 PM CDT, 20 minutes before
KSZ011-012-023-037-210235- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 836 PM CDT SAT JUN 20 1998 ...PORTIONS OF TORNADO WATCH NUMBER 626 OVER NORTHEAST KANSAS HAVE BEEN CANCELLED... n TORNADO WATCH NUMBER 626 HAS BEEN CANCELLED FOR NEMAHA...BROWN... ...POTTAWATOMIE AND MORRIS COUNTIES. STORMS HAVE MOVED OUT OF THESE AREAS OR HAVE DECREASED BELOW SEVERE LIMITS. FRANTZ
Special weather statement, Jun 20, 8:36 PM CDT, 20 minutes before
KSZ011-012-023-037-210235- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 836 PM CDT SAT JUN 20 1998 ...PORTIONS OF TORNADO WATCH NUMBER 626 OVER NORTHEAST KANSAS HAVE BEEN CANCELLED... n TORNADO WATCH NUMBER 626 HAS BEEN CANCELLED FOR NEMAHA...BROWN... ...POTTAWATOMIE AND MORRIS COUNTIES. STORMS HAVE MOVED OUT OF THESE AREAS OR HAVE DECREASED BELOW SEVERE LIMITS. FRANTZ
The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 7:17 PM CDT | Severe Thunderstorm Warning | TOP | Jackson, Jefferson | 48 min |
| Jun 20, 8:03 PM CDT | Severe Thunderstorm Warning | TOP | Jefferson | 32 min |
| Jun 20, 8:24 PM CDT | Severe Thunderstorm Warning | TOP | Douglas | 31 min |
| Jun 20, 8:38 PM CDT | Severe Thunderstorm Warning | TOP | Jefferson | 32 min |
| Jun 20, 9:10 PM CDT | Severe Thunderstorm Warning | TOP | Jefferson | 35 min |
| Jun 20, 9:40 PM CDT | Severe Thunderstorm Warning | TOP | Jefferson | 45 min |
| Jun 21, 6:19 AM CDT | Severe Thunderstorm Warning | TOP | Lyon, Morris | 31 min |
Nearby
Severe Thunderstorm Warnings in Kansas, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.