Alert archive / Kansas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 100, NWS Topeka, KS

May 28, 2018Brown County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at May 28, 2018, 7:31 PM CDT for Brown County, Kansas. It was in force for 20 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 28, 2018, 7:31 PM CDT (00:31 UTC)
Expired
May 28, 2018, 7:51 PM CDT
In force
20 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

County Brown County, KS

The radar

The Topeka radar (KTWX), 109 km from the middle of the area, began a volume at 00:30 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 nearest sounding before it

Topeka, KS (KFOE), launched 00:00Z, 0.5 hours before the alert went out and 92 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-pSkew-T log-p diagram, Topeka, KS at 00:00Z on 2018-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1535 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2018-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1535 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
2054 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
-9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 May 28, 6:29 PM CDT, 1 hour 2 minutes earlier.

Area forecast discussion, May 28, 6:29 PM CDT, 1 hour 2 minutes before
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Hazardous weather outlook, May 28, 6:33 PM CDT, 58 minutes before
Hazardous Weather Outlook
National Weather Service Topeka KS
633 PM CDT Mon May 28 2018

KSZ008>012-020>024-026-034>040-054>056-058-059-292345-
Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley-
Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris-
Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson-
633 PM CDT Mon May 28 2018

This hazardous weather outlook is for east central...north
central and northeast Kansas.

.DAY ONE...Tonight.

Isolated thunderstorms are possible through sunset across the
outlook area. Additional thunderstorms are also possible through this
evening along Highway 81 in north central Kansas, and after
midnight across portions of northeast and east central Kansas.
Gusty winds and small are the main hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Strong to severe thunderstorms are possible across most of the
area Tuesday afternoon through late Tuesday night. Damaging wind
gusts would be the main threat.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

&&

More detailed information can be accessed at...
http://www.weather.gov/top/sitrep

In the hours before

Special weather statement, May 28, 5:56 PM CDT, 1 hour 35 minutes before
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Special weather statement, May 28, 6:07 PM CDT, 1 hour 24 minutes before
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Special weather statement, May 28, 6:36 PM CDT, 55 minutes before
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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 11:06 PM CDTSpecial Weather StatementTOPJefferson24 min
May 29, 12:54 AM CDTSpecial Weather StatementTOPDickinson36 min
May 29, 12:57 AM CDTSpecial Weather StatementTOPRiley18 min
May 29, 1:12 AM CDTSpecial Weather StatementTOPRiley18 min
May 29, 2:35 AM CDTSpecial Weather StatementTOPBrown25 min
May 29, 3:05 AM CDTSpecial Weather StatementTOPBrown25 min
May 29, 3:43 AM CDTSpecial Weather StatementTOPJefferson32 min
May 29, 3:52 AM CDTSevere Thunderstorm WarningTOPJefferson26 min
May 29, 4:16 AM CDTSpecial Weather StatementTOPJefferson29 min
May 29, 5:37 AM CDTSpecial Weather StatementTOPWabaunsee23 min
May 29, 5:49 AM CDTSpecial Weather StatementTOPWabaunsee26 min
May 29, 2:51 PM CDTSevere Thunderstorm WarningTOPMarshall, Pottawatomie, Riley24 min
May 29, 4:23 PM CDTSpecial Weather StatementTOPPottawatomie37 min
May 29, 4:32 PM CDTSevere Thunderstorm WarningTOPPottawatomie, Riley, Wabaunsee18 min
May 29, 5:17 PM CDTSpecial Weather StatementTOPJackson28 min
May 29, 6:12 PM CDTSpecial Weather StatementTOPOttawa48 min
May 29, 6:40 PM CDTSpecial Weather StatementTOPOttawa50 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2018Every severe thunderstorm warning in 2018

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.