Alert archive / Kansas / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 306, NWS Wichita, KS

September 8, 2025Harper County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Sep 8, 2025, 5:39 PM CDT for Harper County, Kansas. It was in force for 45 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: Sep 8, 2025, 5:39 PM CDT (22:39 UTC)
Expired: Sep 8, 2025, 6:24 PM CDT
In force: 45 min
Issued by: NWS Wichita, KS
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

County Harper County, KS

The radar

The Vance AFB radar (KVNX), 50 km from the middle of the area, began a volume at 22:42 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.

Issued	Product	Office	Lasted
Sep 8, 4:54 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 10.7 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: 382 J/kg
Mixed-layer CIN: -247 J/kg
Mixed-layer LCL: 891 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 239 m²/s²
0-3 km storm-relative helicity: 276 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.9

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 Sep 8, 2:26 PM CDT, 3 hours 13 minutes earlier. Its key messages:

Showers and thunderstorms continue across portions of central and south-central KS this afternoon; additional development possible this evening and tonight
More storm chances Wednesday morning and Thursday morning; small rain chances for late weekend

Area forecast discussion, Sep 8, 2:26 PM CDT, 3 hours 13 minutes before

Area Forecast Discussion
National Weather Service Wichita KS
226 PM CDT Mon Sep 8 2025

.KEY MESSAGES...

- Showers and thunderstorms continue across portions of central and
  south-central KS this afternoon; additional development possible
  this evening and tonight

- More storm chances Wednesday morning and Thursday morning; small
  rain chances for late weekend

&&

.DISCUSSION...
Issued at 225 PM CDT Mon Sep 8 2025

As of 2 PM, numerous showers and thunderstorms continue across
portions of central and south-central KS. These are due in part to a
persistent low-mid level WAA pattern. The duration of these storms
has been due to the large scale midlevel trough remaining well-west
across northeast CO and the mean flow is orthogonal to the initiation
zone. Latest WV reveals the main shortwave trough is ejecting into
northwest KS and is gradually shifting the axis of rainfall east and
southeast. Thus far, MRMS is suggesting upwards of 12" of rain has
fallen over portions of Lincoln, Ellsworth, and Saline counties.
Fortunately, the heaviest rain is shifting out of these areas.

The LLJ will strengthen overnight from the eastern TX Panhandle
through southeast NE. This may provide another focal point for WAA
driven showers and storms along and east of the KS Turnpike. PW up
to 1.5" once again will support heavy rainfall. Another
night/morning of WAA driven convection is possible late Tuesday
through Wednesday morning with the best chances west of I-135. The
midlevel ridge will slide across the area Thursday into the upcoming
weekend. A strong midlevel trough will eject into the northern
Plains late Saturday into Sunday, shunting a cold front towards the
area for Sunday. The overall pattern will become dominate by an
omega block with troughing in the western and eastern CONUS with
ridging across the Plains. This is should lead to mostly dry
conditions with seasonal temperatures next week.

&&

.AVIATION /18Z TAFS THROUGH 18Z TUESDAY/...
Issued at 1212 PM CDT Mon Sep 8 2025

Widespread SHRA and TSRA continues across portions of central
and south-central KS. This activity will continue to impact SLN
and HUT through mid-afternoon. These showers will reach ICT
within the hour. More-isolated activity continues to develop in
the vicinity of GBD and may continue to do so into the mid-
afternoon hours. Confidence greatly decreases into the late
afternoon and evening hours as forecast models are really
struggling with the current evolution. There remains the
potential that SHRA and TSRA persists beyond mid-afternoon and
into the evening hours. Short term trends must be monitored into
the afternoon and evening hours. Additional SHRA and TSRA are
possible late tonight across eastern KS and may impact CNU but
confidence remains too low for anything beyond a PROB30.

&&

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

&&

DISCUSSION...BRF
AVIATION...BRF

Hazardous weather outlook, Sep 8, 4:58 PM CDT, 41 minutes before

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In the hours before

Local storm report, Sep 8, 2:45 PM CDT, 2 hours 54 minutes before

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Local storm report, Sep 8, 3:18 PM CDT, 2 hours 21 minutes before

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Local storm report, Sep 8, 3:23 PM CDT, 2 hours 16 minutes before

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Local storm report, Sep 8, 4:14 PM CDT, 1 hour 25 minutes before

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Local storm report, Sep 8, 4:31 PM CDT, 1 hour 8 minutes before

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Local storm report, Sep 8, 4:43 PM CDT, 56 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 8, 6:43 AM CDT	Special Weather Statement	ICT	Ellsworth	32 min
Sep 8, 7:49 AM CDT	Areal Flood Warning	ICT	Ellsworth, Lincoln	8 hr
Sep 8, 8:49 AM CDT	Areal Flood Warning	ICT	Ellsworth, Saline	7 hr
Sep 8, 10:16 AM CDT	Flash Flood Warning Considerable damage threat	ICT	Ellsworth, Lincoln, Saline	7 hr
Sep 8, 10:28 AM CDT	Severe Thunderstorm Warning	ICT	Ellsworth	27 min
Sep 8, 11:07 AM CDT	Flash Flood Warning Considerable damage threat	ICT	Ellsworth, Rice	4 hr
Sep 8, 12:03 PM CDT	Areal Flood Warning	ICT	Rice	4 hr
Sep 8, 12:15 PM CDT	River Flood Warning	ICT	Lincoln	69 hr
Sep 8, 12:18 PM CDT	River Flood Warning	ICT	Saline	32 hr
Sep 8, 12:55 PM CDT	Severe Thunderstorm Warning	ICT	Rice	35 min
Sep 8, 2:06 PM CDT	Flash Flood Warning Considerable damage threat	ICT	McPherson	4 hr
Sep 8, 2:43 PM CDT	Flash Flood Warning Considerable damage threat	ICT	Ellsworth, Rice	3 hr
Sep 8, 4:26 PM CDT	Areal Flood Warning	ICT	Harvey, McPherson, Reno, Saline	25 hr
Sep 8, 4:54 PM CDT	Severe Thunderstorm Warning	ICT	Harper, Kingman	54 min
Sep 8, 5:42 PM CDT	Areal Flood Warning	ICT	Ellsworth, Lincoln, Saline	24 hr
Sep 8, 5:45 PM CDT	Areal Flood Warning	ICT	Ellsworth, Rice	24 hr
Sep 8, 5:47 PM CDT	Areal Flood Warning	ICT	McPherson	24 hr
Sep 8, 6:42 PM CDT	River Flood Warning	ICT	Reno, Rice	5 days

Nearby

Severe Thunderstorm Warnings in Kansas, 2025 Every severe thunderstorm warning in 2025

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.