Alert archive / Kansas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 134, NWS Topeka, KS

June 24, 1998Nemaha County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Jun 24, 1998, 12:43 AM CDT for Nemaha County, Kansas. It was in force for 27 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 24, 1998, 12:43 AM CDT (05:43 UTC)
Expired: Jun 24, 1998, 1:10 AM CDT
In force: 27 min
Issued by: NWS Topeka, KS
Area: Whole counties

County Nemaha County, KS

What was reported inside it

Time	Report	Where	Remark
Jun 24, 12:58 AM CDT	Hail 0.75	Bern, 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 23, 7:15 PM CDT	Tornado Watch	SPC	6 hr
Jun 23, 11:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 5.7 hours before the alert went out and 93 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2696 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 1678 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 113 m²/s²
0-3 km storm-relative helicity: 319 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 13.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 23, 3:25 PM CDT, 9 hours 18 minutes earlier.

Area forecast discussion, Jun 23, 3:25 PM CDT, 9 hours 18 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TOPEKA KS
325 PM CDT TUE JUN 23 1998

...MAIN PROBLEM TONIGHT IS ANY THREAT FOR THUNDERSTORMS AND BEYOND
THAT IS THE AMOUNT OF HEAT EXPECTED...

SOME WEAK CONVERGENCE NOTED EASTERN KANSAS THIS EVENING BUT WITH
INCREASING LOW LEVEL FLOW...FEEL BEST CHANCE FOR PRECIPITATION IS
ALONG NORTHERN/NORTHEASTERN BORDER CLOSER TO REAL FRONT. EVEN
THERE...FEEL CHCS ARE RATHER REMOTE BUT PRECIPITATION ALREADY IN THE
FORECAST THERE AND WILL NOT FLIP/FLOP ON LOW POPS.

BEYOND TONIGHT...DON'T SEE MUCH EXCITING BUT A PERSISTENT HOT WINDY
PATTERN. TEMPERATURES WARMING TO EXCESSIVE LEVELS AT H7 PER
ETA/SPM. THIS SHOULD EFFECTIVELY CAP ANY SFC BASED TSTM ACTIVITY OUR
AREA UNTIL EITHER SOME SGFNT SFC BASED BOUNDARY ENTERS THE PICTURE
OR SOME FEATURE ALOFT PROVIDES ENOUGH COOLING TO ERODE CAP.

NGM MOS SEEMS ABOUT 5 DEGREES TOO COOL ON DAYTIME HIGHS AND MAYBE A
FEW DEGREES TOO COOL AT NIGHT. WITH LOW LEVEL JET IN PLACE AT
NIGHT...PERHAPS NGM MOS THREE HOURLY TEMPERATURES BETTER INDICATOR
OF OVERNIGHT LOWS THAN ASSOCIATED MOS VALUES. WENT THAT DIRECTION IN
FORECAST.

.TOP...NONE

In the hours before

Special weather statement, Jun 23, 11:27 PM CDT, 1 hour 16 minutes before

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Special weather statement, Jun 23, 11:27 PM CDT, 1 hour 16 minutes before

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Special weather statement, Jun 23, 11:45 PM CDT, 58 minutes before

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The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 23, 7:56 PM CDT	Severe Thunderstorm Warning	TOP	Cloud, Republic	34 min
Jun 23, 8:30 PM CDT	Severe Thunderstorm Warning	TOP	Cloud, Republic	40 min
Jun 23, 8:57 PM CDT	Tornado Warning	TOP	Cloud	48 min
Jun 23, 9:45 PM CDT	Tornado Warning	TOP	Cloud	45 min
Jun 23, 9:52 PM CDT	Tornado Warning	TOP	Ottawa	48 min
Jun 23, 10:23 PM CDT	Tornado Warning	TOP	Clay	37 min
Jun 23, 10:48 PM CDT	Severe Thunderstorm Warning	TOP	Cloud, Republic	37 min
Jun 23, 11:11 PM CDT	Severe Thunderstorm Warning	TOP	Washington	44 min
Jun 23, 11:40 PM CDT	Severe Thunderstorm Warning	TOP	Marshall	45 min
Jun 23, 11:53 PM CDT	Severe Thunderstorm Warning	TOP	Washington	32 min
Jun 24, 12:22 AM CDT	Severe Thunderstorm Warning	TOP	Marshall	43 min

Nearby

Severe Thunderstorm Warnings in Kansas, 1998 Every 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.