Alert archive / Kansas / Special Weather Statements in 2021

Special Weather Statement, NWS Wichita, KS

September 15, 2021Sumner County, Kansas

NWS Wichita, KS issued this special weather statement at Sep 15, 2021, 2:21 AM CDT for Sumner 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
Sep 15, 2021, 2:21 AM CDT (07:21 UTC)
Expired
Sep 15, 2021, 2:45 AM CDT
In force
24 min
Issued by
NWS Wichita, KS
Hail
0.00 in
Wind
30

County Sumner County, KS

The radar

The Wichita radar (KICT), 49 km from the middle of the area, began a volume at 07:24 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 00:00Z, 7.4 hours before the alert went out and 192 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-pSkew-T log-p diagram, Dodge City, at 00:00Z on 2021-09-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1275 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 00:00Z on 2021-09-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -22 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1275 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
1548 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
-22 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.5

Open this sounding in Storm Lab

The text

As transmitted.

819 
WWUS83 KICT 150721
SPSICT

Special Weather Statement
National Weather Service Wichita KS
221 AM CDT Wed Sep 15 2021
 
KSZ091-092-150745-
Harper KS-Sumner KS-
221 AM CDT Wed Sep 15 2021

...A strong thunderstorm will impact portions of northeastern Harper
and northwestern Sumner Counties through 245 AM CDT...

At 221 AM CDT, Doppler radar was tracking a strong thunderstorm near
Conway Springs, moving southeast at 20 mph.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

Locations impacted include...
Wellington, Harper, Conway Springs, Argonia, Mayfield, Milan,
Danville, Freeport, Perth, Riverdale, Runnymede and Wellington
Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

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

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3717 9803 3738 9815 3739 9781 3747 9780
      3747 9735 3716 9740
TIME...MOT...LOC 0721Z 305DEG 19KT 3733 9764 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

$$

METZGER

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 14, 7:27 PM CDTSpecial Weather StatementICTBarton33 min
Sep 14, 7:35 PM CDTSpecial Weather StatementICTHarvey40 min
Sep 14, 7:59 PM CDTSpecial Weather StatementICTBarton46 min
Sep 14, 8:08 PM CDTSpecial Weather StatementICTKingman37 min
Sep 14, 8:15 PM CDTSpecial Weather StatementICTSedgwick45 min
Sep 14, 8:20 PM CDTSevere Thunderstorm WarningICTBarton, Ellsworth, Rice40 min
Sep 14, 8:58 PM CDTSevere Thunderstorm Warning Considerable damage threatICTBarton, Ellsworth, Russell25 min
Sep 14, 9:25 PM CDTSpecial Weather StatementICTEllsworth35 min
Sep 14, 9:55 PM CDTSpecial Weather StatementICTRice35 min
Sep 14, 10:31 PM CDTSpecial Weather StatementICTMcPherson44 min
Sep 14, 11:03 PM CDTSpecial Weather StatementICTMcPherson27 min
Sep 14, 11:45 PM CDTSpecial Weather StatementICTAllen, Woodson30 min
Sep 15, 12:12 AM CDTSpecial Weather StatementICTAllen, Neosho33 min
Sep 15, 12:22 AM CDTSpecial Weather StatementICTMarion23 min
Sep 15, 12:39 AM CDTSpecial Weather StatementICTNeosho36 min

Nearby

Special Weather Statements in Kansas, 2021Every 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.