Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 155, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Sep 30, 2021, 1:28 PM CDT for Creek County, Tulsa County, Oklahoma. It was in force for 23 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 30, 2021, 1:28 PM CDT (18:28 UTC)
- Expired
- Sep 30, 2021, 1:51 PM CDT
- In force
- 23 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Creek County, OK, Tulsa County, OK
The radar
The Tulsa radar (KINX), 36 km from the middle of the area, began a volume at 18:27 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
Norman, OK (KOUN), launched 12:00Z, 6.5 hours before the alert went out and 164 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
- 961 J/kg
- Mixed-layer CIN
- -148 J/kg
- Mixed-layer LCL
- 945 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
271
WUUS54 KTSA 301828
SVRTSA
OKC037-143-301915-
/O.NEW.KTSA.SV.W.0155.210930T1828Z-210930T1915Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
128 PM CDT Thu Sep 30 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Northeastern Creek County in northeastern Oklahoma...
Southern Tulsa County in northeastern Oklahoma...
* Until 215 PM CDT.
* At 128 PM CDT, a severe thunderstorm was located 5 miles southeast
of Sand Springs, moving east at 20 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations in or near the path include...
Tulsa... Broken Arrow...
Sand Springs... Bixby...
Sapulpa... Jenks...
Glenpool... Catoosa...
Jenks Riverside Airport... Gray...
This includes Interstate 44 between mile markers 207 and 232.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3616 9618 3617 9581 3616 9581 3616 9576
3597 9576 3598 9618
TIME...MOT...LOC 1828Z 268DEG 19KT 3608 9606
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Snider2 follow-up statements
517
WWUS54 KTSA 301840
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
140 PM CDT Thu Sep 30 2021
OKC037-143-301915-
/O.CON.KTSA.SV.W.0155.000000T0000Z-210930T1915Z/
Creek OK-Tulsa OK-
140 PM CDT Thu Sep 30 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM CDT
FOR NORTHEASTERN CREEK AND SOUTHERN TULSA COUNTIES...
At 140 PM CDT, a severe thunderstorm was located near Jenks Riverside
Airport, moving east at 20 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations in or near the path include...
Tulsa... Broken Arrow...
Sand Springs... Bixby...
Sapulpa... Jenks...
Glenpool... Catoosa...
Jenks Riverside Airport... Gray...
This includes Interstate 44 between mile markers 207 and 232.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3616 9618 3617 9581 3616 9581 3616 9576
3597 9576 3598 9618
TIME...MOT...LOC 1840Z 268DEG 19KT 3608 9598
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Snider440
WWUS54 KTSA 301851
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
151 PM CDT Thu Sep 30 2021
OKC037-143-301901-
/O.CAN.KTSA.SV.W.0155.000000T0000Z-210930T1915Z/
Creek OK-Tulsa OK-
151 PM CDT Thu Sep 30 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CREEK AND
SOUTHERN TULSA COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However gusty winds are
still possible with this thunderstorm.
LAT...LON 3616 9618 3617 9581 3616 9581 3616 9576
3597 9576 3598 9618
TIME...MOT...LOC 1850Z 268DEG 19KT 3608 9591
$$
SniderThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 30, 12:45 PM CDT | Special Weather Statement | TSA | Creek | 30 min |
| Sep 30, 12:56 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Tulsa | 34 min |
| Sep 30, 1:54 PM CDT | Special Weather Statement | TSA | Tulsa | 36 min |
| Sep 30, 1:59 PM CDT | Special Weather Statement | TSA | Tulsa | 16 min |
| Sep 30, 2:14 PM CDT | Special Weather Statement | TSA | Rogers | 31 min |
| Sep 30, 2:40 PM CDT | Special Weather Statement | TSA | Mayes | 35 min |
| Sep 30, 3:22 PM CDT | Special Weather Statement | TSA | Cherokee | 23 min |
| Sep 30, 5:16 PM CDT | Special Weather Statement | TSA | Choctaw | 44 min |
| Sep 30, 5:19 PM CDT | Special Weather Statement | TSA | Delaware | 26 min |
| Sep 30, 5:58 PM CDT | Special Weather Statement | TSA | Choctaw | 47 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2021Every severe thunderstorm warning in 2021
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.