Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 7, NWS Wichita, KS

March 12, 2021Harper County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Mar 12, 2021, 8:43 AM CST for Harper County, Kansas. It was in force for 28 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: Mar 12, 2021, 8:43 AM CST (14:43 UTC)
Expired: Mar 12, 2021, 9:11 AM CST
In force: 28 min
Issued by: NWS Wichita, KS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Harper County, KS

The radar

The Vance AFB radar (KVNX), 39 km from the middle of the area, began a volume at 14:44 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

Dodge City, (KDDC), launched 12:00Z, 2.7 hours before the alert went out and 173 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 813 m above ground
0-6 km bulk shear: 84 kt
0-1 km storm-relative helicity: 293 m²/s²
0-3 km storm-relative helicity: 419 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

As transmitted.

522 
WUUS53 KICT 121443
SVRICT
KSC077-121545-
/O.NEW.KICT.SV.W.0007.210312T1443Z-210312T1545Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wichita KS
843 AM CST Fri Mar 12 2021

The National Weather Service in Wichita has issued a

* Severe Thunderstorm Warning for...
  Harper County in south central Kansas...

* Until 945 AM CST.

* At 843 AM CST, a severe thunderstorm was located near Amorita, or 9
  miles southeast of Hazelton, moving northeast at 50 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...
  Anthony, Bluff City, Danville, Waldron, Freeport and Corwin. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3700 9835 3711 9835 3736 9781 3700 9780
TIME...MOT...LOC 1443Z 238DEG 45KT 3700 9828 

HAIL...1.00IN
WIND...60MPH
 
$$

Martin

2 follow-up statements

924 
WWUS53 KICT 121505
SVSICT

Severe Weather Statement
National Weather Service Wichita KS
905 AM CST Fri Mar 12 2021

KSC077-121545-
/O.CON.KICT.SV.W.0007.000000T0000Z-210312T1545Z/
Harper KS-
905 AM CST Fri Mar 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 AM CST
FOR SOUTHEASTERN HARPER COUNTY...

At 905 AM CST, a severe thunderstorm was located near Manchester, or
near Anthony, moving east at 40 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Anthony, Bluff City and Freeport. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3700 9813 3715 9812 3724 9781 3700 9780
TIME...MOT...LOC 1505Z 251DEG 36KT 3707 9804 

HAIL...1.00IN
WIND...<50MPH
 
$$

Martin

071 
WWUS53 KICT 121511
SVSICT

Severe Weather Statement
National Weather Service Wichita KS
911 AM CST Fri Mar 12 2021

KSC077-121521-
/O.CAN.KICT.SV.W.0007.000000T0000Z-210312T1545Z/
Harper KS-
911 AM CST Fri Mar 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HARPER COUNTY IS
CANCELLED...
                
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 has been cancelled.

LAT...LON 3700 9813 3715 9812 3724 9781 3700 9780
TIME...MOT...LOC 1509Z 238DEG 45KT 3711 9796 

$$

Martin

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 12, 4:57 AM CST	Severe Thunderstorm Warning	ICT	Kingman, Reno	63 min
Mar 12, 5:00 AM CST	Special Weather Statement	ICT	Rice	45 min
Mar 12, 5:35 AM CST	Severe Thunderstorm Warning	ICT	Harvey, Kingman, Reno, Sedgwick	55 min
Mar 12, 5:48 AM CST	Special Weather Statement	ICT	Cowley	57 min
Mar 12, 6:07 AM CST	Severe Thunderstorm Warning	ICT	Butler, Sedgwick	42 min
Mar 12, 6:50 AM CST	Special Weather Statement	ICT	Butler	55 min
Mar 12, 7:10 AM CST	Special Weather Statement	ICT	Elk	50 min
Mar 12, 7:14 AM CST	Special Weather Statement	ICT	Greenwood	46 min
Mar 12, 9:40 AM CST	Special Weather Statement	ICT	Harper	65 min
Mar 12, 10:12 AM CST	Special Weather Statement	ICT	Elk	48 min
Mar 12, 10:31 AM CST	Special Weather Statement	ICT	Sedgwick	44 min
Mar 12, 10:43 AM CST	Special Weather Statement	ICT	Sumner	47 min
Mar 12, 10:49 AM CST	Special Weather Statement	ICT	Butler	41 min
Mar 12, 11:11 AM CST	Special Weather Statement	ICT	Butler	49 min
Mar 12, 11:51 AM CST	Special Weather Statement	ICT	Elk	54 min
Mar 12, 12:08 PM CST	Areal Flood Warning	ICT	Allen, Woodson	48 hr
Mar 12, 12:39 PM CST	Special Weather Statement	ICT	Wilson	51 min
Mar 12, 12:55 PM CST	Special Weather Statement	ICT	Neosho	50 min
Mar 12, 3:04 PM CST	Areal Flood Warning	ICT	Neosho	45 hr

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.