Alert archive / Kansas / Special Weather Statements in 2011

Special Weather Statement, NWS Topeka, KS

June 27, 20115 counties in Kansas

NWS Topeka, KS issued this special weather statement at Jun 27, 2011, 4:44 AM CDT for 5 counties in Kansas. It was in force for 46 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 27, 2011, 4:44 AM CDT (09:44 UTC)
Expired: Jun 27, 2011, 5:30 AM CDT
In force: 46 min
Issued by: NWS Topeka, KS

Counties Douglas County, KS, Jefferson County, KS, Osage County, KS, Shawnee County, KS, Wabaunsee County, KS

The radar

The Topeka radar (KTWX), 44 km from the middle of the area, began a volume at 09:48 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, 9.7 hours before the alert went out and 14 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: 3777 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 1305 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 104 m²/s²
0-3 km storm-relative helicity: 307 m²/s²
Significant tornado parameter: 2.0
Supercell composite: 17.0

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 27, 2:43 AM CDT, 2 hours 1 minute earlier.

Area forecast discussion, Jun 27, 2:43 AM CDT, 2 hours 1 minute before

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Hazardous weather outlook, Jun 26, 9:19 PM CDT, 7 hours 25 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE TOPEKA KS
919 PM CDT SUN JUN 26 2011

KSZ008>012-020>024-026-034>040-054>056-058-059-280230-
REPUBLIC-WASHINGTON-MARSHALL-NEMAHA-BROWN-CLOUD-CLAY-RILEY-
POTTAWATOMIE-JACKSON-JEFFERSON-OTTAWA-DICKINSON-GEARY-MORRIS-
WABAUNSEE-SHAWNEE-DOUGLAS-LYON-OSAGE-FRANKLIN-COFFEY-ANDERSON-
919 PM CDT SUN JUN 26 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL...NORTH
CENTRAL AND NORTHEAST KANSAS.

.DAY ONE...TONIGHT.

STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE AFTER 10 PM INTO
EARLY MONDAY MORNING. THUNDERSTORMS AHEAD OF A COLD FRONT IN
NEBRASKA WILL PROPAGATE INTO NORTHERN KANSAS. WHILE MOST
THUNDERSTORMS ARE EXPECTED TO REMAIN BELOW SEVERE THRESHOLDS...A
FEW THUNDERSTORMS COULD PRODUCE HAIL UP THE SIZE OF
QUARTERS...WIND GUSTS UP TO 60 MPH AND HEAVY RAIN.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THUNDERSTORMS MAY CONTINUE INTO MONDAY...AND LINGER INTO MONDAY
EVENING SOUTH OF INTERSTATE 35. THUNDERSTORM CHANCES RETURN TO
THE AREA TUESDAY NIGHT INTO WEDNESDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE LATE TONIGHT NEAR THE STATE LINE
OF KANSAS AND NEBRASKA.

In the hours before

Local storm report, Jun 27, 1:33 AM CDT, 3 hours 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
133 AM CDT MON JUN 27 2011

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

0132 AM     HAIL             4 S TOPEKA              38.99N 95.68W
06/27/2011  E1.00 INCH       SHAWNEE            KS   PUBLIC

&&

BARJENBRUCH

Special weather statement, Jun 27, 1:50 AM CDT, 2 hours 54 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
150 AM CDT MON JUN 27 2011

KSZ026-039-270715-
JEFFERSON-SHAWNEE-
150 AM CDT MON JUN 27 2011

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN SHAWNEE AND
JEFFERSON COUNTIES...

THROUGH 215 AM CDT...A CLUSTER OF THUNDERSTORMS WILL MOVE EAST AT 35
MPH ACROSS PORTIONS OF NORTHEASTERN SHAWNEE AND JEFFERSON COUNTIES.
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THIS CLUSTER OF
STORMS IS CAPABLE OF PRODUCING PENNY SIZE HAIL...WINDS UP TO 40 MPH
AND HEAVY RAIN. SOME LOCATIONS THAT COULD BE AFFECTED INCLUDE
MERIDEN...PERRY...OZAWKIE...WILLIAMSTOWN...VALLEY FALLS...
NORTONVILLE...WINCHESTER...OSKALOOSA AND MCLOUTH.

A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT.

&&

LAT...LON 3912 9518 3904 9519 3905 9528 3903 9529
      3905 9539 3907 9544 3906 9548 3908 9572
      3922 9560 3922 9559 3942 9559 3943 9547
      3942 9517 3913 9517
TIME...MOT...LOC 0650Z 249DEG 29KT 3911 9561

Special weather statement, Jun 27, 3:33 AM CDT, 1 hour 11 minutes before

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Local storm report, Jun 27, 3:50 AM CDT, 54 minutes before

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Special weather statement, Jun 27, 4:16 AM CDT, 28 minutes before

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Special weather statement, Jun 27, 4:44 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 26, 10:37 PM CDT	Severe Thunderstorm Warning	TOP	Brown, Nemaha	53 min
Jun 26, 11:24 PM CDT	Severe Thunderstorm Warning	TOP	Brown	24 min
Jun 27, 12:28 AM CDT	Special Weather Statement	TOP	Pottawatomie	32 min
Jun 27, 12:40 AM CDT	Severe Thunderstorm Warning	TOP	Jackson, Pottawatomie, Wabaunsee	50 min
Jun 27, 1:02 AM CDT	Special Weather Statement	TOP	Shawnee	28 min
Jun 27, 1:07 AM CDT	Severe Thunderstorm Warning	TOP	Shawnee	38 min
Jun 27, 1:17 AM CDT	Severe Thunderstorm Warning	TOP	Shawnee	28 min
Jun 27, 1:22 AM CDT	Severe Thunderstorm Warning	TOP	Jefferson	26 min
Jun 27, 1:25 AM CDT	Special Weather Statement	TOP	Jackson	35 min
Jun 27, 1:39 AM CDT	Severe Thunderstorm Warning	TOP	Douglas	27 min
Jun 27, 1:50 AM CDT	Special Weather Statement	TOP	Jefferson	25 min
Jun 27, 2:26 AM CDT	Severe Thunderstorm Warning	TOP	Marshall, Washington	17 min
Jun 27, 3:33 AM CDT	Special Weather Statement	TOP	Brown, Nemaha	27 min
Jun 27, 4:09 AM CDT	Areal Flood Advisory	TOP	Marshall, Nemaha	66 min
Jun 27, 4:16 AM CDT	Special Weather Statement	TOP	Jackson, Jefferson, Shawnee, Wabaunsee	29 min
Jun 27, 4:39 AM CDT	Areal Flood Advisory	TOP	Brown	66 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.