Alert archive / Oklahoma / Tornado Warnings in 2018
Tornado Warning 22, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at Oct 7, 2018, 9:08 PM CDT for Osage 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 outline as issued.
The facts
- Issued
- Oct 7, 2018, 9:08 PM CDT (02:08 UTC)
- Expired
- Oct 7, 2018, 9:36 PM CDT
- In force
- 28 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
County Osage County, OK
The radar
The Tulsa radar (KINX), 106 km from the middle of the area, began a volume at 02:09 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 00:00Z, 2.1 hours before the alert went out and 218 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
- 1196 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1057 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 180 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 6.6
The text
As transmitted.
591
WFUS54 KTSA 080208
TORTSA
OKC113-080300-
/O.NEW.KTSA.TO.W.0022.181008T0208Z-181008T0300Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
908 PM CDT SUN OCT 7 2018
The National Weather Service in Tulsa has issued a
* Tornado Warning for...
North central Osage County in northeastern Oklahoma...
* Until 1000 PM CDT.
* At 908 PM CDT, a severe thunderstorm with strong low level rotation
that could produce a tornado at any time was located 5 miles
southwest of Elgin, moving northeast at 20 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations in or near the path include...
Elgin...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3700 9607 3685 9630 3693 9642 3700 9638
TIME...MOT...LOC 0208Z 230DEG 17KT 3693 9633
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$2 follow-up statements
751
WWUS54 KTSA 080218
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
918 PM CDT SUN OCT 7 2018
OKC113-080300-
/O.CON.KTSA.TO.W.0022.000000T0000Z-181008T0300Z/
Osage OK-
918 PM CDT SUN OCT 7 2018
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR NORTHERN
OSAGE COUNTY...
At 918 PM CDT, a severe thunderstorm capable of producing a tornado
was located 3 miles southeast of Elgin, moving northeast at 20 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations in or near the path include...
Elgin...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3700 9607 3687 9627 3693 9635 3700 9634
TIME...MOT...LOC 0218Z 232DEG 17KT 3695 9625
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$724
WWUS54 KTSA 080236
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
936 PM CDT SUN OCT 7 2018
OKC113-080245-
/O.CAN.KTSA.TO.W.0022.000000T0000Z-181008T0300Z/
Osage OK-
936 PM CDT SUN OCT 7 2018
...THE TORNADO WARNING FOR NORTHERN OSAGE COUNTY IS CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.
LAT...LON 3700 9607 3687 9627 3693 9635 3700 9634
TIME...MOT...LOC 0234Z 230DEG 17KT 3700 9617
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 7, 7:28 PM CDT | Special Weather Statement | TSA | Osage | 47 min |
| Oct 7, 7:30 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 45 min |
| Oct 7, 7:52 PM CDT | Tornado Warning | TSA | Osage | 38 min |
| Oct 7, 8:04 PM CDT | Special Weather Statement | TSA | Pawnee | 26 min |
| Oct 7, 8:24 PM CDT | Tornado Warning | TSA | Osage | 51 min |
| Oct 7, 8:27 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 33 min |
| Oct 7, 8:52 PM CDT | Special Weather Statement | TSA | Pawnee | 38 min |
| Oct 7, 9:14 PM CDT | Areal Flood Advisory | TSA | Osage, Pawnee | 3 hr |
| Oct 8, 9:19 AM CDT | River Flood Warning | TSA | Ottawa | 7 days |
Nearby
Tornado Warnings in Oklahoma, 2018Every tornado warning in 2018Tornadoes in 2018
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.