Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 120, NWS Topeka, KS

August 10, 2021Cloud County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Aug 10, 2021, 3:24 AM CDT for Cloud County, Kansas. It was in force for 36 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: Aug 10, 2021, 3:24 AM CDT (08:24 UTC)
Expired: Aug 10, 2021, 4:00 AM CDT
In force: 36 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Cloud County, KS

The radar

The Grand Island radar (KUEX), 114 km from the middle of the area, began a volume at 08:25 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, 8.4 hours before the alert went out and 189 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: 3834 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 1380 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 61 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.2

Open this sounding in Storm Lab

The text

As transmitted.

848 
WUUS53 KTOP 100824
SVRTOP
KSC029-100900-
/O.NEW.KTOP.SV.W.0120.210810T0824Z-210810T0900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Topeka KS
324 AM CDT Tue Aug 10 2021

The National Weather Service in Topeka has issued a

* Severe Thunderstorm Warning for...
  Southwestern Cloud County in north central Kansas...

* Until 400 AM CDT.

* At 324 AM CDT, a severe thunderstorm was located near Glasco,
  moving east at 40 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Glasco and Aurora. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3950 9793 3955 9753 3931 9748 3932 9793
TIME...MOT...LOC 0824Z 261DEG 36KT 3940 9786 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gargan

4 follow-up statements

686 
WWUS53 KTOP 100832
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
332 AM CDT Tue Aug 10 2021

KSC029-100900-
/O.CON.KTOP.SV.W.0120.000000T0000Z-210810T0900Z/
Cloud-
332 AM CDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR SOUTHWESTERN CLOUD COUNTY...

At 332 AM CDT, a severe thunderstorm was located 4 miles northeast of
Glasco, moving east at 35 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Glasco and Aurora. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3950 9793 3955 9753 3931 9748 3932 9793
TIME...MOT...LOC 0832Z 264DEG 29KT 3941 9780 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gargan

558 
WWUS53 KTOP 100837
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
337 AM CDT Tue Aug 10 2021

KSC029-100900-
/O.CON.KTOP.SV.W.0120.000000T0000Z-210810T0900Z/
Cloud-
337 AM CDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR SOUTHWESTERN CLOUD COUNTY...

At 336 AM CDT, severe thunderstorms were located along a line
extending from 6 miles southeast of Scottsville to 6 miles northeast
of Delphos, moving east at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Glasco and Aurora. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3950 9792 3955 9753 3931 9748 3932 9786
TIME...MOT...LOC 0836Z 263DEG 28KT 3949 9785 3933 9769 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gargan

425 
WWUS53 KTOP 100843
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
343 AM CDT Tue Aug 10 2021

KSC029-100900-
/O.CON.KTOP.SV.W.0120.000000T0000Z-210810T0900Z/
Cloud-
343 AM CDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR SOUTH CENTRAL CLOUD COUNTY...

At 342 AM CDT, severe thunderstorms were located along a line
extending from 8 miles northeast of Glasco to 8 miles northeast of
Delphos, moving east at 35 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Aurora.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3950 9777 3953 9753 3931 9748 3932 9776
TIME...MOT...LOC 0842Z 273DEG 34KT 3943 9772 3933 9763 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gargan

775 
WWUS53 KTOP 100850
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
350 AM CDT Tue Aug 10 2021

KSC029-100900-
/O.EXP.KTOP.SV.W.0120.000000T0000Z-210810T0900Z/
Cloud-
350 AM CDT Tue Aug 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL CLOUD COUNTY
WILL EXPIRE AT 400 AM CDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However small
hail, gusty winds and heavy rain are still possible with these
thunderstorms.

LAT...LON 3950 9777 3953 9753 3931 9748 3932 9776
TIME...MOT...LOC 0850Z 261DEG 36KT 3943 9772 3933 9763 

$$

Gargan

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 3:13 AM CDT	Special Weather Statement	TOP	Cloud	32 min
Aug 10, 3:30 AM CDT	Special Weather Statement	TOP	Ottawa	30 min
Aug 10, 4:01 AM CDT	Special Weather Statement	TOP	Cloud, Ottawa	29 min
Aug 10, 4:26 AM CDT	Special Weather Statement	TOP	Clay, Dickinson	34 min
Aug 10, 4:57 AM CDT	Special Weather Statement	TOP	Clay, Dickinson, Geary, Riley	33 min
Aug 10, 5:11 AM CDT	Severe Thunderstorm Warning	TOP	Pottawatomie, Riley	22 min
Aug 10, 5:35 AM CDT	Special Weather Statement	TOP	Wabaunsee	25 min
Aug 10, 6:12 AM CDT	Special Weather Statement	TOP	Shawnee	33 min
Aug 10, 6:53 AM CDT	Special Weather Statement	TOP	Douglas	37 min
Aug 10, 7:43 AM CDT	Special Weather Statement	TOP	Franklin	32 min
Aug 10, 4:40 PM CDT	Special Weather Statement	TOP	Lyon	35 min
Aug 10, 4:56 PM CDT	Severe Thunderstorm Warning	TOP	Lyon	49 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2021 Every severe thunderstorm warning 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.