Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 718, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Sep 2, 2020, 3:24 PM CDT for Kiowa County, Oklahoma. It was in force for 36 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 2, 2020, 3:24 PM CDT (20:24 UTC)
- Expired
- Sep 2, 2020, 4:00 PM CDT
- In force
- 36 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Kiowa County, OK
The radar
The Altus AFB radar (KFDR), 62 km from the middle of the area, began a volume at 20:25 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
Amarillo Airport, TX (KAMA), launched 12:00Z, 8.4 hours before the alert went out and 250 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.
- Mixed-layer CAPE
- 819 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 920 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 1, 6:34 PM CDT, 20 hours 50 minutes earlier.
Area forecast discussion, Sep 1, 6:34 PM CDT, 20 hours 50 minutes before
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</html>The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 8:51 PM CDT | River Flood Warning | OUN | Atoka | 29 hr |
| Sep 1, 8:52 PM CDT | River Flood Advisory | OUN | Bryan | 5 hr |
| Sep 1, 10:21 PM CDT | Special Weather Statement | OUN | Custer | 24 min |
| Sep 2, 3:02 AM CDT | River Flood Advisory | OUN | Carter, Johnston, Murray | 10 hr |
| Sep 2, 11:47 AM CDT | Areal Flood Advisory | OUN | Harper | 3 hr |
| Sep 2, 1:13 PM CDT | Special Weather Statement | OUN | Ellis | 32 min |
| Sep 2, 1:39 PM CDT | Special Weather Statement | OUN | Roger Mills | 36 min |
| Sep 2, 1:40 PM CDT | Special Weather Statement | OUN | Roger Mills | 35 min |
| Sep 2, 2:04 PM CDT | Special Weather Statement | OUN | Beckham | 26 min |
| Sep 2, 2:13 PM CDT | Special Weather Statement | OUN | Woodward | 32 min |
| Sep 2, 2:20 PM CDT | Severe Thunderstorm Warning | OUN | Beckham, Roger Mills | 40 min |
| Sep 2, 2:22 PM CDT | Severe Thunderstorm Warning | OUN | Dewey, Woodward | 38 min |
| Sep 2, 2:44 PM CDT | Areal Flood Advisory | OUN | Beckham | 3 hr |
| Sep 2, 2:55 PM CDT | Severe Thunderstorm Warning | OUN | Beckham | 50 min |
| Sep 2, 3:07 PM CDT | Special Weather Statement | OUN | Greer | 38 min |
| Sep 2, 3:22 PM CDT | Severe Thunderstorm Warning | OUN | Greer | 38 min |
| Sep 2, 3:29 PM CDT | Special Weather Statement | OUN | Kiowa | 31 min |
| Sep 2, 3:30 PM CDT | Special Weather Statement | OUN | Dewey | 30 min |
| Sep 2, 3:39 PM CDT | Special Weather Statement | OUN | Blaine | 21 min |
| Sep 2, 3:46 PM CDT | Special Weather Statement | OUN | Dewey | 29 min |
| Sep 2, 4:02 PM CDT | Special Weather Statement | OUN | Jackson, Kiowa | 43 min |
| Sep 2, 4:04 PM CDT | Special Weather Statement | OUN | Blaine | 26 min |
| Sep 2, 4:08 PM CDT | Special Weather Statement | OUN | Blaine | 37 min |
| Sep 2, 4:12 PM CDT | Special Weather Statement | OUN | Kingfisher | 33 min |
| Sep 2, 4:32 PM CDT | Special Weather Statement | OUN | Blaine | 13 min |
| Sep 2, 4:37 PM CDT | Areal Flood Advisory | OUN | Custer | 53 min |
| Sep 2, 4:47 PM CDT | Special Weather Statement | OUN | Blaine, Kingfisher | 28 min |
| Sep 2, 5:18 PM CDT | Special Weather Statement | OUN | Custer | 27 min |
| Sep 2, 5:21 PM CDT | Special Weather Statement | OUN | Kingfisher | 24 min |
| Sep 2, 12:14 AM CDT | Special Weather Statement | OUN | Hardeman | 31 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2020Every severe thunderstorm warning in 2020
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.