Alert archive / Kansas / Special Weather Statements in 2011

Special Weather Statement, NWS Topeka, KS

June 18, 20116 counties in Kansas

NWS Topeka, KS issued this special weather statement at Jun 18, 2011, 4:55 AM CDT for 6 counties in Kansas. It was in force for 35 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: Jun 18, 2011, 4:55 AM CDT (09:55 UTC)
Expired: Jun 18, 2011, 5:30 AM CDT
In force: 35 min
Issued by: NWS Topeka, KS

Counties Brown County, KS, Douglas County, KS, Jackson County, KS, Jefferson County, KS, Nemaha County, KS, Shawnee County, KS

The radar

The Topeka radar (KTWX), 84 km from the middle of the area, began a volume at 09:57 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 (KTOP), launched 00:00Z, 9.9 hours before the alert went out and 48 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: 2975 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 1379 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 4.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Jun 18, 4:05 AM CDT, 50 minutes earlier.

Area forecast discussion, Jun 18, 4:05 AM CDT, 50 minutes before

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Hazardous weather outlook, Jun 18, 4:49 AM CDT, 6 minutes before

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In the hours before

Local storm report, Jun 18, 1:20 AM CDT, 3 hours 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
120 AM CDT SAT JUN 18 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0119 AM     TSTM WND DMG     BALDWIN CITY            38.78N 95.19W
06/18/2011                   DOUGLAS            KS   EMERGENCY MNGR

            POWER LINE DOWN AT 400 BLOCK OF ORANGE IN BALDWIN CITY.

&&

JL

Special weather statement, Jun 18, 2:00 AM CDT, 2 hours 55 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
200 AM CDT SAT JUN 18 2011

KSZ040-180730-
DOUGLAS-
200 AM CDT SAT JUN 18 2011

...SIGNIFICANT WEATHER ADVISORY FOR DOUGLAS COUNTY...

THROUGH 230 AM CDT...AN AREA OF STRONG WINDS WILL ACCOMPANY
THUNDERSTORMS AS THEY MOVE EASTWARD NEAR 20 MPH ACROSS DOUGLAS
COUNTY. NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THIS STORM
IS CAPABLE OF PRODUCING STRONG WINDS OF 40 TO 50 MPH AND HEAVY RAIN.
SOME LOCATIONS THAT COULD BE AFFECTED INCLUDE
LAWRENCE...CLINTON...PLEASANT GROVE...VINLAND AND EUDORA. MOTORISTS
ALONG THE KANSAS TURNPIKE BETWEEN MILE MARKERS 196 AND 205 COULD
ALSO BE AFFECTED.

&&

LAT...LON 3879 9550 3899 9549 3902 9518 3897 9518
      3898 9516 3897 9513 3898 9511 3896 9509
      3898 9509 3899 9507 3878 9506
TIME...MOT...LOC 0659Z 260DEG 14KT 3891 9533

Special weather statement, Jun 18, 2:04 AM CDT, 2 hours 51 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
204 AM CDT SAT JUN 18 2011

KSZ008-009-020>022-034-035-180745-
CLAY-CLOUD-DICKINSON-OTTAWA-REPUBLIC-RILEY-WASHINGTON-
204 AM CDT SAT JUN 18 2011

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN RILEY...EASTERN
REPUBLIC...EASTERN OTTAWA...CLAY...EASTERN CLOUD...NORTHERN DICKINSON
AND WASHINGTON COUNTIES...

THROUGH 245 AM CDT...A GUST FRONT OUT AHEAD OF A LINE OF
THUNDERSTORMS WILL MOVE EASTWARD AT 50 MPH ACROSS PORTIONS OF
OTTAWA...CLOUD...CLAY...NORTHERN DICKINSON...AND WASHINGTON
COUNTIES.

SOME LOCATIONS THAT COULD BE AFFECTED INCLUDE  CLAY
CENTER...MILTONVALE...CLYDE...HADDAM...NILES...VINING...OAK
HILL...CLIFTON...LONGFORD...MANCHESTER...MORROWVILLE...MORGAN
VILLE...TALMAGE...PALMER...LINN...WASHINGTON...ABILENE...HOLLENBURG..
.GREENLEAF...MOONLIGHT...GREEN...WAKEFIELD...HAN OVER...CHAPMAN AND
BARNES.

MOTORISTS ALONG INTERSTATE 70 BETWEEN MILE MARKERS 267 AND 287 COULD
ALSO BE AFFECTED.

&&

LAT...LON 4001 9698 3999 9680 3890 9702 3893 9738
      3896 9738 3895 9771 4001 9755
TIME...MOT...LOC 0702Z 279DEG 50KT 3997 9744 3896 9762

Special weather statement, Jun 18, 2:41 AM CDT, 2 hours 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
241 AM CDT SAT JUN 18 2011

KSZ008-020-180815-
CLOUD-REPUBLIC-
241 AM CDT SAT JUN 18 2011

...SIGNIFICANT WEATHER ADVISORY FOR REPUBLIC AND NORTHWESTERN CLOUD
COUNTIES...

THROUGH 315 AM CDT...THUNDERSTORMS WILL MOVE NORTHEAST AT 20 MPH
ACROSS REPUBLIC AND NORTHWESTERN CLOUD COUNTIES. NATIONAL WEATHER
SERVICE DOPPLER RADAR INDICATED THESE STORMS ARE CAPABLE OF
PRODUCING STRONG WIND GUSTS OF 50 TO 55 MPH AND HEAVY RAIN. SOME
LOCATIONS THAT COULD BE AFFECTED INCLUDE
REPUBLIC...SCANDIA...CONCORDIA...BELLEVILLE...AGENDA...CUBA...MUNDEN
AND NARKA.

&&

LAT...LON 4000 9739 3966 9741 3939 9791 3989 9794
      4000 9794
TIME...MOT...LOC 0740Z 232DEG 19KT 3987 9776

Special weather statement, Jun 18, 3:34 AM CDT, 1 hour 21 minutes before

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Special weather statement, Jun 18, 4:55 AM CDT, 0 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 17, 8:17 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson, Morris	43 min
Jun 17, 8:56 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson, Morris	49 min
Jun 17, 9:48 PM CDT	Special Weather Statement	TOP	Ottawa	27 min
Jun 17, 9:53 PM CDT	Severe Thunderstorm Warning	TOP	Ottawa	52 min
Jun 17, 10:59 PM CDT	Severe Thunderstorm Warning	TOP	Lyon	46 min
Jun 17, 11:19 PM CDT	Special Weather Statement	TOP	Franklin	26 min
Jun 17, 11:26 PM CDT	Severe Thunderstorm Warning	TOP	Douglas, Franklin	49 min
Jun 17, 11:41 PM CDT	Severe Thunderstorm Warning	TOP	Coffey, Lyon, Osage	49 min
Jun 17, 11:56 PM CDT	Special Weather Statement	TOP	Marshall	34 min
Jun 18, 12:09 AM CDT	Severe Thunderstorm Warning	TOP	Douglas	33 min
Jun 18, 12:18 AM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey, Franklin, Osage	42 min
Jun 18, 12:38 AM CDT	Severe Thunderstorm Warning	TOP	Anderson, Douglas, Franklin	37 min
Jun 18, 1:28 AM CDT	Areal Flood Advisory	TOP	Marshall, Nemaha, Pottawatomie	6 hr
Jun 18, 2:00 AM CDT	Special Weather Statement	TOP	Douglas	30 min
Jun 18, 2:04 AM CDT	Special Weather Statement	TOP	Clay, Ottawa, Washington	41 min
Jun 18, 2:41 AM CDT	Special Weather Statement	TOP	Republic	34 min
Jun 18, 2:55 AM CDT	Severe Thunderstorm Warning	TOP	Cloud, Ottawa	50 min
Jun 18, 3:34 AM CDT	Special Weather Statement	TOP	Clay, Geary, Lyon, Morris, Riley, Washington	26 min

Nearby

Special Weather Statements in Kansas, 2011 Every special weather statement in 2011

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.