Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 121, NWS Wichita, KS

August 10, 2021Lincoln County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Aug 10, 2021, 7:56 PM CDT for Lincoln County, Kansas. It was in force for 64 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Aug 10, 2021, 7:56 PM CDT (00:56 UTC)
Expired: Aug 10, 2021, 9:00 PM CDT
In force: 64 min
Issued by: NWS Wichita, KS
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Lincoln County, KS

The radar

The Grand Island radar (KUEX), 138 km from the middle of the area, began a volume at 00:57 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.

What was reported inside it

Time	Report	Where	Remark
Aug 10, 8:00 PM CDT	TSTM WND DMG	Sylvan Grove, KS	POWER POLE SNAPED. POWER OUT IN SYLVAN GROVE. DELAYED REPORT. TIME ESTIMATED BY RADAR.
Aug 10, 8:04 PM CDT	TSTM WND DMG	2 Ne Sylvan Grove, KS	GUY-WIRE TO HAY BARN SNAPED. HAY BARN BLOWN OVER. DELAYED REPORT. TIME ESTIMATED BY RADAR
Aug 10, 8:04 PM CDT	TSTM WND DMG	2 Ne Sylvan Grove, KS	GUY-WIRE TO HAY BARN SNAPED. HAY BARN BLOWN OVER. DELAYED REPORT. TIME ESTIMATED BY RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 0.9 hours before the alert went out and 214 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: 2591 J/kg
Mixed-layer CIN: -154 J/kg
Mixed-layer LCL: 1584 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 274 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 8.9

Open this sounding in Storm Lab

The text

As transmitted.

428 
WUUS53 KICT 110056
SVRICT
KSC105-110200-
/O.NEW.KICT.SV.W.0121.210811T0056Z-210811T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wichita KS
756 PM CDT Tue Aug 10 2021

The National Weather Service in Wichita has issued a

* Severe Thunderstorm Warning for...
  Lincoln County in central Kansas...

* Until 900 PM CDT.

* At 755 PM CDT, a severe thunderstorm was located over Lucas, or 16
  miles north of Wilson, moving northeast at 35 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Trained weather spotters.

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

* Locations impacted include...
  Lincoln, Sylvan Grove, Beverly and Barnard. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3922 9793 3897 9793 3889 9848 3922 9828
TIME...MOT...LOC 0055Z 241DEG 29KT 3906 9849 

HAIL THREAT...OBSERVED
MAX HAIL SIZE...1.25 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH

$$

METZGER

3 follow-up statements

322 
WWUS53 KICT 110115
SVSICT

Severe Weather Statement
National Weather Service Wichita KS
815 PM CDT Tue Aug 10 2021

KSC105-110200-
/O.CON.KICT.SV.W.0121.000000T0000Z-210811T0200Z/
Lincoln KS-
815 PM CDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR LINCOLN COUNTY...

At 814 PM CDT, a severe thunderstorm was located 7 miles north of
Sylvan Grove, or 12 miles northwest of Lincoln, moving northeast at
30 mph.

HAZARD...70 mph wind gusts and half dollar size hail.

SOURCE...Trained weather spotters have reported 77 mph winds just 
         north of Sylvan Grove.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Lincoln, Sylvan Grove, Beverly and Barnard. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3922 9793 3897 9793 3889 9848 3922 9828
TIME...MOT...LOC 0114Z 241DEG 26KT 3912 9835 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...OBSERVED
MAX HAIL SIZE...1.25 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH

$$

METZGER

889 
WWUS53 KICT 110127
SVSICT

Severe Weather Statement
National Weather Service Wichita KS
827 PM CDT Tue Aug 10 2021

KSC105-110200-
/O.CON.KICT.SV.W.0121.000000T0000Z-210811T0200Z/
Lincoln KS-
827 PM CDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR NORTHERN LINCOLN COUNTY...

At 825 PM CDT, a severe thunderstorm was located 6 miles southeast of
Victor, or 9 miles northwest of Lincoln, moving northeast at 35 mph.

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

SOURCE...Trained weather spotters.

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

Locations impacted include...
Lincoln, Sylvan Grove and Barnard. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This storm has weakened significantly over the past 20 minutes but is 
still capable of producing large hail and damaging wind.  Stay in 
your shelter until the storm passes.

Torrential rainfall is occurring with this storm, and may lead to 
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3922 9793 3907 9793 3900 9841 3922 9828
TIME...MOT...LOC 0125Z 242DEG 29KT 3916 9824 

HAIL THREAT...OBSERVED
MAX HAIL SIZE...1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH

$$

METZGER

233 
WWUS53 KICT 110151
SVSICT

Severe Weather Statement
National Weather Service Wichita KS
851 PM CDT Tue Aug 10 2021

KSC105-110200-
/O.EXP.KICT.SV.W.0121.000000T0000Z-210811T0200Z/
Lincoln KS-
851 PM CDT Tue Aug 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN LINCOLN COUNTY WILL
EXPIRE AT 900 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

LAT...LON 3922 9793 3907 9793 3900 9841 3922 9828
TIME...MOT...LOC 0150Z 241DEG 29KT 3917 9822 

$$

METZGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 7:21 PM CDT	Severe Thunderstorm Warning	ICT	Lincoln, Russell	54 min
Aug 10, 8:12 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ICT	Lincoln	18 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.