Alert archive / Kansas / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 220, NWS Wichita, KS

August 6, 20235 counties in Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Aug 6, 2023, 1:12 AM CDT for 5 counties in Kansas. It was in force for 34 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
Aug 6, 2023, 1:12 AM CDT (06:12 UTC)
Expired
Aug 6, 2023, 1:46 AM CDT
In force
34 min
Issued by
NWS Wichita, KS
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

Counties Allen County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS

The radar

The Tulsa radar (KINX), 145 km from the middle of the area, began a volume at 06:15 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.

IssuedProductOfficeLasted
Aug 5, 9:06 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 6.2 hours before the alert went out and 304 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, Norman, OK at 00:00Z on 2023-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 267 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, Norman, OK at 00:00Z on 2023-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 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
267 J/kg
Mixed-layer CIN
-360 J/kg
Mixed-layer LCL
2618 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
25 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 Wichita, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 6, 12:28 AM CDT, 44 minutes earlier.

Area forecast discussion, Aug 6, 12:28 AM CDT, 44 minutes before
Area Forecast Discussion
National Weather Service Wichita KS
1228 AM CDT Sun Aug 6 2023

.SYNOPSIS...
Issued at 320 PM CDT Sat Aug 5 2023

BOTTOM LINE UP FRONT:

Severe thunderstorms are expected tonight across the area with the
highest chances across portions of south-central Kansas. Main
concern will be damaging wind gusts around 65-75+ mph. General
timing for storms across the area will be from 9PM tonight to 4AM
early Sunday morning.

&&

.SHORT TERM...(This evening through Tuesday night)
Issued at 320 PM CDT Sat Aug 5 2023

This morning's severe MCS definitely put a wrench into the forecast
for this afternoon and tonight. The atmosphere across much of
southern Kansas is extremely worked over, and strong subsidence is
present across much of the area behind lingering and persistent
shower and thunderstorm activity across northern Oklahoma. Needless
to say, big changes will need to take place to realize this
evening's severe weather potential. With shower and thunderstorm
activity looking to remain in place across northern Oklahoma through
the afternoon, would hedge on the side of a significant severe MCS
plowing across the entirety of southern Kansas becoming increasingly
less likely. However, several factors of this forecast still need to
be worked out.

The biggest question is exactly how much the atmosphere will
recover by this evening/tonight. While confidence in guidance is low
at this time, it would suggest the axis of highest elevated
instability will be somewhere across southwest Kansas into far south-
central Kansas and north-central Oklahoma extending into east-
central Oklahoma. The mid-level thermal gradient and PWAT axis will
generally be overlapped across the same areas, so the general
thinking is that an MCS will roll off the high plains and
potentially move into portions of south-central Kansas but mainly
stay southwest of the Wichita metro (still cannot rule out severe
weather in Wichita tonight, but the highest confidence is southwest
of the metro). Main hazards will generally be 65-75+ mph wind gusts,
and this activity may impact areas that received significant wind
damage from this morning's activity.

Meanwhile, a potent mid/upper shortwave trough will skate across the
northern plains, and a fairly potent mid/upper jet will likely
support another MCS across the northern half of Kansas tonight as
well. Though with slightly less instability, mostly strong to
marginally severe storms are anticipated with this activity with 55-
65 mph winds being the primarily concern.

After 09Z late tonight, while lingering showers may continue across
the area, robust convection should be south and east of the forecast
area. Much cooler air will be primary headline for Sunday and Monday
with afternoon highs across the area are only expected to be in the
mid to upper 80s. Northwesterly flow aloft will be quite persist
Sunday and Monday as well, and a couple of shortwave impulses within
this flow may be enough to trigger widely scattered showers and
storms across portions of western and southern Kansas both late
Sunday and late Monday nights. Strong to severe storms are not
expected with this activity.

.LONG TERM...(Wednesday through Saturday)
Issued at 320 PM CDT Sat Aug 5 2023

A slow warming trend will commence on Tuesday with afternoon
temperatures slowly trending closer to normal for this time of year
(generally in the low to mid 90s). Northwest flow aloft appears to
stay quite persistent through much of the weekend. With embedded
shortwave troughs expected to pass over the central plains this
week, periodic chances for isolated to widely scattered showers and
storms will remain in the forecast through next weekend. Tuesday
night may be area's next best chances for strong to severe storms,
but details still need to be ironed out over the coming days. Stay
tuned!

&&

.AVIATION...(For the 06Z TAFS through 06Z Sunday night)
Issued at 1223 AM CDT Sun Aug 6 2023

A line of showers and storms will continue to move southeast
across the region overnight. Will likely affect CNU site during
the overnight hours. Meanwhile winds will switch to the northwest
and increase Sunday afternoon across central Kansas. VFR
conditions will prevail for the morning through the day.

&&

.PRELIMINARY POINT TEMPS/POPS...
Wichita-KICT    69  88  65  86 /  70  20  20  10
Hutchinson      68  88  63  86 /  70  10  10  10
Newton          68  87  64  86 /  60  10  10   0
ElDorado        69  88  65  85 /  60  20  10  10
Winfield-KWLD   69  89  65  85 /  70  20  30  10
Russell         64  85  61  85 /  70   0  10  10
Great Bend      64  85  61  83 /  70  10  20  10
Salina          68  88  63  87 /  50  10  10   0
McPherson       67  87  63  85 /  60  10  10   0
Coffeyville     71  92  65  87 /  60  30  20  10
Chanute         71  91  65  86 /  50  30  10   0
Iola            70  89  64  85 /  40  30  10   0
Parsons-KPPF    70  92  65  87 /  60  30  10  10

&&

.ICT WATCHES/WARNINGS/ADVISORIES...
None.
&&

SYNOPSIS...JC
SHORT TERM...JC
LONG TERM...JC
AVIATION...CDJ
Hazardous weather outlook, Aug 5, 9:14 PM CDT, 3 hours 58 minutes before
Hazardous Weather Outlook
National Weather Service Wichita KS
914 PM CDT Sat Aug 5 2023

KSZ032-033-047>053-067>072-082-083-091>096-098>100-070215-
Russell-Lincoln-Barton-Ellsworth-Saline-Rice-McPherson-Marion-Chase-
Reno-Harvey-Butler-Greenwood-Woodson-Allen-Kingman-Sedgwick-Harper-
Sumner-Cowley-Elk-Wilson-Neosho-Chautauqua-Montgomery-Labette-
914 PM CDT Sat Aug 5 2023

This hazardous weather outlook is for portions of Central Kansas,
South Central Kansas and Southeast Kansas.

.DAY ONE...Tonight

Another round of severe storms will be possible tonight. Damaging
winds of 60 to 75 mph, quarter sized hail, and heavy rain will be
the primary threats. Portions of central and south central Kansas
have the greatest chance at seeing severe storms.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Lingering isolated showers and storms are possible early Sunday
morning.

Periodic chances for showers and storms are in the forecast from
late Sunday night through Friday. Strong to severe storms are
possible Tuesday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated tonight.

&&

For a graphical version of this information, see our webpage at:
https://weather.gov/crh/ghwo?sid=ict

In the hours before

Local storm report, Aug 6, 12:31 AM CDT, 41 minutes before
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Local storm report, Aug 6, 12:32 AM CDT, 40 minutes before
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Local storm report, Aug 6, 12:37 AM CDT, 35 minutes before
Preliminary Local Storm Report
National Weather Service Wichita KS
1237 AM CDT Sun Aug 6 2023

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

1125 PM     Tstm Wnd Dmg     Mount Hope              37.87N 97.66W
08/05/2023                   Sedgwick           KS   Trained Spotter

&&
Local storm report, Aug 6, 12:38 AM CDT, 34 minutes before
Preliminary Local Storm Report
National Weather Service Wichita KS
1238 AM CDT Sun Aug 6 2023

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

1125 PM     Tstm Wnd Gst     Mount Hope              37.87N 97.66W
08/05/2023  M65 MPH          Sedgwick           KS   Trained Spotter

            Corrects previous tstm wnd dmg report from
            Mount Hope.

&&
Local storm report, Aug 6, 12:51 AM CDT, 21 minutes before
Preliminary Local Storm Report
National Weather Service Wichita KS
1251 AM CDT Sun Aug 6 2023

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

1227 AM     Tstm Wnd Dmg     1 NE El Dorado          37.83N 96.85W
08/06/2023                   Butler             KS   Fire Dept/Rescue

            damaged power pole at the north end of the
            city; some power outages in the area. Also a
            report of a tree down on the west side of El
            Dorado (unknown size).

&&
Local storm report, Aug 6, 1:00 AM CDT, 12 minutes before
Preliminary Local Storm Report
National Weather Service Wichita KS
100 AM CDT Sun Aug 6 2023

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

1221 AM     Tstm Wnd Gst     4 E Matfield Green      38.16N 96.48W
08/06/2023  E63 MPH          Chase              KS   Mesonet

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 9:28 PM CDTSpecial Weather StatementICTRussell32 min
Aug 5, 9:52 PM CDTSpecial Weather StatementICTLincoln23 min
Aug 5, 9:56 PM CDTSpecial Weather StatementICTBarton19 min
Aug 5, 10:10 PM CDTSevere Thunderstorm WarningICTBarton, Ellsworth, Russell50 min
Aug 5, 10:33 PM CDTSevere Thunderstorm WarningICTEllsworth, Lincoln, McPherson, Reno, Rice, Saline42 min
Aug 5, 10:45 PM CDTSpecial Weather StatementICTHarper30 min
Aug 5, 10:58 PM CDTSevere Thunderstorm Warning Considerable damage threatICTHarvey, Kingman, McPherson, Reno, Sedgwick47 min
Aug 5, 11:05 PM CDTSpecial Weather StatementICTSumner25 min
Aug 5, 11:25 PM CDTSevere Thunderstorm Warning Destructive damage threatICTButler, Harvey, Kingman, Marion, Reno, Sedgwick50 min
Aug 5, 11:56 PM CDTSevere Thunderstorm Warning Considerable damage threatICTButler, Chase, Cowley, Elk, Greenwood, Sumner64 min
Aug 6, 12:21 AM CDTSpecial Weather StatementICTHarper24 min
Aug 6, 12:34 AM CDTSevere Thunderstorm Warning Considerable damage threatICTChautauqua, Cowley, Elk, Greenwood, Montgomery, Wilson and 1 more41 min
Aug 6, 12:38 AM CDTSevere Thunderstorm WarningICTHarper, Sumner37 min
Aug 6, 2:13 AM CDTSpecial Weather StatementICTHarper47 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2023Every severe thunderstorm warning in 2023

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.