Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 749, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Aug 9, 2019, 12:53 AM CDT for Canadian County, Oklahoma County, Oklahoma. It was in force for 28 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 9, 2019, 12:53 AM CDT (05:53 UTC)
- Expired
- Aug 9, 2019, 1:21 AM CDT
- In force
- 28 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Canadian County, OK, Oklahoma County, OK
The radar
The Norman radar (KTLX), 45 km from the middle of the area, began a volume at 05:56 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, 5.9 hours before the alert went out and 316 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
- 49 J/kg
- Mixed-layer CIN
- -203 J/kg
- Mixed-layer LCL
- 1477 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 Aug 8, 6:01 PM CDT, 6 hours 52 minutes earlier.
Area forecast discussion, Aug 8, 6:01 PM CDT, 6 hours 52 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 |
|---|---|---|---|---|
| Aug 8, 10:09 PM CDT | Special Weather Statement | OUN | Pottawatomie | 51 min |
| Aug 8, 10:37 PM CDT | Special Weather Statement | OUN | Oklahoma | 38 min |
| Aug 8, 11:12 PM CDT | Special Weather Statement | OUN | Pottawatomie | 33 min |
| Aug 8, 11:40 PM CDT | Special Weather Statement | OUN | Canadian | 35 min |
| Aug 9, 12:01 AM CDT | Areal Flood Advisory | OUN | Canadian, Oklahoma | 3 hr |
| Aug 9, 12:07 AM CDT | Areal Flood Advisory | OUN | Pottawatomie | 3 hr |
| Aug 9, 12:44 AM CDT | Special Weather Statement | OUN | Logan | 31 min |
| Aug 9, 12:47 AM CDT | Special Weather Statement | OUN | Oklahoma | 28 min |
| Aug 9, 1:18 AM CDT | Areal Flood Advisory | OUN | Canadian, Oklahoma | 3 hr |
| Aug 9, 2:03 AM CDT | Special Weather Statement | OUN | Kingfisher | 27 min |
| Aug 9, 2:54 AM CDT | Areal Flood Advisory | OUN | Garfield, Kingfisher, Logan | 3 hr |
| Aug 9, 3:19 AM CDT | Flash Flood Warning | OUN | Kingfisher | 5 hr |
| Aug 9, 3:40 AM CDT | Heat Advisory | OUN | Atoka, Bryan, Caddo, Carter, Coal, Comanche and 12 more | 16 hr |
| Aug 9, 5:26 AM CDT | Areal Flood Advisory | OUN | Alfalfa, Grant | 3 hr |
| Aug 9, 6:05 AM CDT | Flash Flood Warning | OUN | Alfalfa, Grant | 3 hr |
| Aug 9, 6:17 AM CDT | Areal Flood Advisory | OUN | Alfalfa | 3 hr |
| Aug 9, 7:03 AM CDT | Flash Flood Warning | OUN | Alfalfa | 3 hr |
| Aug 9, 7:14 AM CDT | Areal Flood Advisory | OUN | Canadian, Oklahoma | 2 hr |
| Aug 9, 7:27 AM CDT | Areal Flood Advisory | OUN | Canadian, Oklahoma | 2 hr |
| Aug 9, 8:15 AM CDT | Areal Flood Advisory | OUN | Payne | 3 hr |
| Aug 9, 8:45 AM CDT | Areal Flood Advisory | OUN | Kingfisher | 3 hr |
| Aug 9, 9:24 AM CDT | Areal Flood Warning | OUN | Alfalfa, Grant | 111 min |
| Aug 9, 9:41 AM CDT | Areal Flood Advisory | OUN | Cleveland, Oklahoma | 3 hr |
| Aug 9, 3:14 PM CDT | Heat Advisory | OUN | Alfalfa, Atoka, Blaine, Bryan, Caddo, Canadian and 29 more | 3 days |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2019Every severe thunderstorm warning in 2019
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.