Alert archive / Kansas / Special Weather Statements in 2021

Special Weather Statement, NWS Topeka, KS

June 11, 2021Shawnee County, Wabaunsee County, Kansas

NWS Topeka, KS issued this special weather statement at Jun 11, 2021, 2:21 PM CDT for Shawnee County, Wabaunsee County, Kansas. It was in force for 24 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 11, 2021, 2:21 PM CDT (19:21 UTC)
Expired: Jun 11, 2021, 2:45 PM CDT
In force: 24 min
Issued by: NWS Topeka, KS

Counties Shawnee County, KS, Wabaunsee County, KS

The radar

The Topeka radar (KTWX), 16 km from the middle of the area, began a volume at 19:20 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 12:00Z, 7.4 hours before the alert went out and 39 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: 2135 J/kg
Mixed-layer CIN: -160 J/kg
Mixed-layer LCL: 1019 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.2

Open this sounding in Storm Lab

The text

As transmitted.

981 
WWUS83 KTOP 111921
SPSTOP

Special Weather Statement
National Weather Service Topeka KS
221 PM CDT Fri Jun 11 2021
 
KSZ036>039-054-055-111945-
Wabaunsee-Geary-Shawnee-Lyon-Osage-Morris-
221 PM CDT Fri Jun 11 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN GEARY...NORTHEASTERN
MORRIS...SHAWNEE...WABAUNSEE...NORTHERN OSAGE AND NORTHERN LYON
COUNTIES UNTIL 245 PM CDT...

At 221 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Topeka to 4 miles west of Volland. Movement was
south at 25 mph.

Wind gusts of 50 to 55 mph will be possible with these storms.

Locations impacted include...
Topeka, Carbondale, Alma, Eskridge, Richland, Dover, Silver Lake,
Auburn, Overbrook, Burlingame, Scranton, Maple Hill, Alta Vista,
Dwight, McFarland, Harveyville, Paxico, Willard, Pauline and Keene.

This includes the following highways...
 Interstate 70 between mile markers 325 and 355.
 Kansas Turnpike between mile markers 154 and 183.

A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
east central Kansas.

LAT...LON 3869 9656 3904 9662 3904 9639 3906 9639
      3913 9565 3896 9555 3883 9550 3875 9550
TIME...MOT...LOC 1921Z 339DEG 21KT 3901 9566 3895 9648 

$$

Jones

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 12:10 PM CDT	Special Weather Statement	TOP	Nemaha	35 min
Jun 11, 12:19 PM CDT	Severe Thunderstorm Warning	TOP	Brown, Marshall, Nemaha	41 min
Jun 11, 12:56 PM CDT	Severe Thunderstorm Warning	TOP	Brown, Jackson, Nemaha	49 min
Jun 11, 1:28 PM CDT	Severe Thunderstorm Warning	TOP	Jackson, Jefferson	47 min
Jun 11, 2:03 PM CDT	Severe Thunderstorm Warning	TOP	Douglas, Jefferson, Shawnee	42 min
Jun 11, 2:10 PM CDT	Severe Thunderstorm Warning	TOP	Jefferson	35 min
Jun 11, 2:25 PM CDT	Severe Thunderstorm Warning	TOP	Jackson	19 min
Jun 11, 2:40 PM CDT	Severe Thunderstorm Warning	TOP	Douglas, Jefferson, Shawnee	50 min
Jun 11, 3:08 PM CDT	Areal Flood Advisory	TOP	Douglas	3 hr
Jun 11, 3:20 PM CDT	Severe Thunderstorm Warning	TOP	Jackson, Jefferson	25 min
Jun 11, 3:35 PM CDT	Severe Thunderstorm Warning	TOP	Jackson	25 min
Jun 11, 4:05 PM CDT	Severe Thunderstorm Warning	TOP	Coffey, Douglas, Franklin, Osage	40 min
Jun 11, 4:45 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Franklin	30 min
Jun 11, 5:15 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Franklin	30 min
Jun 11, 5:32 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey	28 min
Jun 11, 6:01 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey	29 min

Nearby

Special Weather Statements in Kansas, 2021 Every special weather statement in 2021

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.