Alert archive / Arkansas / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 431, NWS Tulsa, OK

August 18, 2025Carroll County, Madison County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Aug 18, 2025, 4:14 PM CDT for Carroll County, Madison County, Arkansas. It was in force for 27 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 18, 2025, 4:14 PM CDT (21:14 UTC)
Expired: Aug 18, 2025, 4:41 PM CDT
In force: 27 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Carroll County, AR, Madison County, AR

The radar

The Western Arkansas radar (KSRX), 119 km from the middle of the area, began a volume at 21:13 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

Springfield, MO (KSGF), launched 12:00Z, 9.2 hours before the alert went out and 82 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: 1598 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 1546 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -12 m²/s²
0-3 km storm-relative helicity: -7 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 Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 18, 12:22 PM CDT, 3 hours 52 minutes earlier.

Area forecast discussion, Aug 18, 12:22 PM CDT, 3 hours 52 minutes before

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Hazardous weather outlook, Aug 18, 1:13 PM CDT, 3 hours 1 minute before

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In the hours before

Special weather statement, Aug 18, 2:49 PM CDT, 1 hour 25 minutes before

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Special weather statement, Aug 18, 3:02 PM CDT, 1 hour 12 minutes before

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Special weather statement, Aug 18, 3:48 PM CDT, 26 minutes before

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Special weather statement, Aug 18, 3:50 PM CDT, 24 minutes before

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Special weather statement, Aug 18, 3:59 PM CDT, 15 minutes before

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The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 18, 11:30 AM CDT	Heat Advisory	TSA	Cherokee, Choctaw, Craig, Creek, Delaware, Haskell and 15 more	33 hr
Aug 18, 2:49 PM CDT	Special Weather Statement	TSA	Okfuskee	26 min
Aug 18, 3:50 PM CDT	Special Weather Statement	TSA	Osage	25 min
Aug 18, 5:08 PM CDT	Special Weather Statement	TSA	LeFlore	37 min
Aug 18, 5:31 PM CDT	Special Weather Statement	TSA	LeFlore	29 min
Aug 17, 7:51 PM CDT	Special Weather Statement	TSA	Carroll	24 min
Aug 18, 3:02 PM CDT	Special Weather Statement	TSA	Madison	28 min
Aug 18, 3:48 PM CDT	Special Weather Statement	TSA	Madison	27 min
Aug 18, 3:59 PM CDT	Special Weather Statement	TSA	Carroll	31 min
Aug 18, 4:41 PM CDT	Special Weather Statement	TSA	Carroll	34 min
Aug 18, 5:15 PM CDT	Special Weather Statement	TSA	Sebastian	30 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 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.