Alert archive / Kansas / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 147, NWS Topeka, KS

June 18, 2019Jackson County, Jefferson County, Shawnee County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Jun 18, 2019, 4:19 PM CDT for Jackson County, Jefferson County, Shawnee County, Kansas. It was in force for 23 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: Jun 18, 2019, 4:19 PM CDT (21:19 UTC)
Expired: Jun 18, 2019, 4:42 PM CDT
In force: 23 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Jackson County, KS, Jefferson County, KS, Shawnee County, KS

The radar

The Topeka radar (KTWX), 57 km from the middle of the area, began a volume at 21:21 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 18, 2:20 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 9.3 hours before the alert went out and 26 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: 60 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 923 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 8 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 Jun 18, 3:08 PM CDT, 1 hour 11 minutes earlier.

Area forecast discussion, Jun 18, 3:08 PM CDT, 1 hour 11 minutes before

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Hazardous weather outlook, Jun 18, 3:29 PM CDT, 50 minutes before

Hazardous Weather Outlook
National Weather Service Topeka KS
329 PM CDT Tue Jun 18 2019

KSZ008>012-020>024-026-034>040-054>056-058-059-192030-
Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley-
Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris-
Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson-
329 PM CDT Tue Jun 18 2019

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

.DAY ONE...This Afternoon and tonight.

Thunderstorms are expected to continue to move across the entire
outlook area this afternoon into tonight. The strongest storms
will be capable of damaging winds, possibly hail, and heavy
rainfall which could lead to localized flash flooding. In
addition, a tornado or two cannot be ruled out, especially along
and south of a line from Emporia to Manhattan to Concordia.

Flooding will continue into late week on the Big Blue River and
its tributaries upstream of Tuttle Creek Lake. Flooding will also
continue along the Delaware River upstream of Perry Lake.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

There could be a few severe thunderstorms across north-central
Kansas late Thursday.  More thunderstorm activity is possible
Friday night into the upcoming weekend, some of these storms may
be severe.

.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

Local storm report, Jun 18, 2:32 PM CDT, 1 hour 47 minutes before

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Local storm report, Jun 18, 2:57 PM CDT, 1 hour 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
257 PM CDT TUE JUN 18 2019

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

0225 PM     TSTM WND GST     3 SW CHAPMAN            38.93N 97.06W
06/18/2019  E70 MPH          DICKINSON          KS   PUBLIC

            PUBLIC REPORTED VERY HEAVY RAIN AND BRIEF
            60-70MPH WIND GUST.

&&

CP

Special weather statement, Jun 18, 4:10 PM CDT, 9 minutes before

Special Weather Statement
National Weather Service Topeka KS
410 PM CDT Tue Jun 18 2019

KSZ038-054-055-058-182145-
Coffey-Wabaunsee-Lyon-Osage-
410 PM CDT Tue Jun 18 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WABAUNSEE...OSAGE...
NORTHWESTERN COFFEY AND LYON COUNTIES UNTIL 445 PM CDT...

At 410 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Harveyville to 6 miles west of Olpe.
Movement was east at 30 mph.

Penny size hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...
Emporia, Osage City, Carbondale, Lyndon, Lebo, Burlingame, Americus,
Scranton, Olpe, Hartford, Neosho Rapids, Harveyville, Reading, Allen,
Admire, Olivet and Melvern Lake.

This includes the following highways...
 Interstate 35 between mile markers 128 and 154.
 Kansas Turnpike between mile markers 116 and 161.

A Tornado Watch remains in effect until 1000 PM CDT for east central
Kansas.

LAT...LON 3814 9596 3817 9596 3817 9613 3821 9636
      3834 9636 3881 9610 3886 9553 3813 9589
TIME...MOT...LOC 2110Z 265DEG 27KT 3881 9598 3824 9628

Skow

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 12:55 PM CDT	Areal Flood Warning	TOP	Jefferson	24 hr
Jun 18, 1:54 PM CDT	Tornado Warning	TOP	Dickinson	36 min
Jun 18, 2:15 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson, Geary, Morris, Riley	45 min
Jun 18, 2:34 PM CDT	Severe Thunderstorm Warning	TOP	Geary, Morris, Pottawatomie, Riley, Wabaunsee	41 min
Jun 18, 3:10 PM CDT	Severe Thunderstorm Warning	TOP	Pottawatomie, Riley, Wabaunsee	50 min
Jun 18, 3:43 PM CDT	Severe Thunderstorm Warning	TOP	Jackson, Osage, Pottawatomie, Shawnee, Wabaunsee	47 min
Jun 18, 4:10 PM CDT	Special Weather Statement	TOP	Lyon, Osage	35 min
Jun 18, 4:32 PM CDT	Special Weather Statement	TOP	Osage, Shawnee	28 min
Jun 18, 4:37 PM CDT	Areal Flood Advisory	TOP	Coffey, Lyon, Osage	113 min
Jun 18, 5:00 PM CDT	Special Weather Statement	TOP	Osage	30 min
Jun 18, 5:24 PM CDT	Special Weather Statement	TOP	Anderson, Coffey, Franklin	66 min
Jun 18, 5:58 PM CDT	Areal Flood Advisory	TOP	Anderson, Coffey, Franklin, Osage	3 hr
Jun 18, 6:21 PM CDT	Special Weather Statement	TOP	Anderson, Franklin	39 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2019 Every severe thunderstorm warning in 2019

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.