Alert archive / Kansas / Special Weather Statements in 2018

Special Weather Statement, NWS Topeka, KS

May 29, 2018Wabaunsee County, Kansas

NWS Topeka, KS issued this special weather statement at May 29, 2018, 5:49 AM CDT for Wabaunsee County, Kansas. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 29, 2018, 5:49 AM CDT (10:49 UTC)
Expired
May 29, 2018, 6:15 AM CDT
In force
26 min
Issued by
NWS Topeka, KS

County Wabaunsee County, KS

The radar

The Topeka radar (KTWX), 3 km from the middle of the area, began a volume at 10:49 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, 10.8 hours before the alert went out and 54 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

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at May 29, 4:08 AM CDT, 1 hour 41 minutes earlier.

Area forecast discussion, May 29, 4:08 AM CDT, 1 hour 41 minutes before
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Hazardous weather outlook, May 29, 4:18 AM CDT, 1 hour 31 minutes before
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In the hours before

Special weather statement, May 29, 2:35 AM CDT, 3 hours 14 minutes before
Special Weather Statement
National Weather Service Topeka KS
235 AM CDT TUE MAY 29 2018

KSZ011-012-290800-
Brown-Nemaha-
235 AM CDT TUE MAY 29 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN NEMAHA AND NORTHERN
BROWN COUNTIES UNTIL 300 AM CDT...

At 235 AM CDT, Doppler radar was tracking a strong thunderstorm near
Fairview, moving northwest at 25 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Hiawatha, Sabetha, Fairview, Morrill, Bern, Reserve and Hamlin.

LAT...LON 3988 9540 3974 9576 4000 9609 4000 9549
TIME...MOT...LOC 0735Z 131DEG 23KT 3986 9569

Hennecke
Special weather statement, May 29, 3:05 AM CDT, 2 hours 44 minutes before
Special Weather Statement
National Weather Service Topeka KS
305 AM CDT TUE MAY 29 2018

KSZ011-012-290830-
Brown-Nemaha-
305 AM CDT TUE MAY 29 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN NEMAHA AND WESTERN
BROWN COUNTIES UNTIL 330 AM CDT...

At 305 AM CDT, Doppler radar was tracking a strong thunderstorm near
Fairview, moving north at 35 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Hiawatha, Sabetha, Fairview, Morrill, Reserve, Powhattan, Hamlin and
Woodlawn.

LAT...LON 3972 9558 3973 9585 4000 9592 4000 9552
TIME...MOT...LOC 0805Z 186DEG 29KT 3985 9568

Hennecke
Special weather statement, May 29, 3:43 AM CDT, 2 hours 6 minutes before
Special Weather Statement
National Weather Service Topeka KS
343 AM CDT TUE MAY 29 2018

KSZ026-290915-
Jefferson-
343 AM CDT TUE MAY 29 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN JEFFERSON COUNTY
UNTIL 415 AM CDT...

At 343 AM CDT, Doppler radar was tracking a strong thunderstorm 4
miles west of Perry, moving north at 15 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Oskaloosa, Perry, Ozawkie and Perry Lake.

LAT...LON 3905 9538 3906 9540 3907 9544 3907 9546
      3905 9549 3907 9551 3907 9555 3926 9555
      3923 9531
TIME...MOT...LOC 0843Z 191DEG 15KT 3910 9547

Hennecke
Special weather statement, May 29, 4:16 AM CDT, 1 hour 33 minutes before
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Special weather statement, May 29, 5:37 AM CDT, 12 minutes before
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Special weather statement, May 29, 5:49 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 7:31 PM CDTSevere Thunderstorm WarningTOPBrown20 min
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, 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

Special Weather Statements in Kansas, 2018Every special weather statement 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.