Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 416, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jun 18, 2011, 9:16 PM CDT for Nowata County, Washington County, Oklahoma. It was in force for 59 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
- Jun 18, 2011, 9:16 PM CDT (02:16 UTC)
- Expired
- Jun 18, 2011, 10:15 PM CDT
- In force
- 59 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Nowata County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 86 km from the middle of the area, began a volume at 02:17 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 18, 6:03 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
The nearest sounding before it
Lamont, OK (KLMN), launched 00:00Z, 2.3 hours before the alert went out and 155 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
- 3821 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 2143 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 12.3
The text
As transmitted, in the capitals the NWS used until 2016.
321 WUUS54 KTSA 190216 SVRTSA OKC105-147-190315- /O.NEW.KTSA.SV.W.0416.110619T0216Z-110619T0315Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 916 PM CDT SAT JUN 18 2011 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN NOWATA COUNTY IN NORTHEAST OKLAHOMA WASHINGTON COUNTY IN NORTHEAST OKLAHOMA * UNTIL 1015 PM CDT * AT 912 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 3 MILES NORTHEAST OF COPAN...MOVING EAST AT 15 MPH. STORM HAZARDS INCLUDE... DAMAGING GOLF BALL SIZE HAIL... DAMAGING WIND GUSTS TO 70 MPH... * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...WANN. ***TORNADO WARNING IS ALSO IN EFFECT FOR NORTHERN WASHINGTON AND NORTHWESTERN NOWATA COUNTIES UNTIL 10 PM.*** PRECAUTIONARY/PREPAREDNESS ACTIONS... PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. && LAT...LON 3700 9564 3681 9564 3684 9600 3700 9600 TIME...MOT...LOC 0216Z 269DEG 12KT 3694 9588 $$
2 follow-up statements
641 WWUS54 KTSA 190247 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 947 PM CDT SAT JUN 18 2011 OKC105-147-190315- /O.CON.KTSA.SV.W.0416.000000T0000Z-110619T0315Z/ NOWATA OK-WASHINGTON OK- 947 PM CDT SAT JUN 18 2011 ...TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM FOR NORTHWEST NOWATA COUNTY... ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR NORTHERN WASHINGTON AND NORTHWESTERN NOWATA COUNTIES... AT 943 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR WANN...MOVING NORTHEAST AT 5 MPH. STORM HAZARDS INCLUDE... DAMAGING GOLF BALL SIZE HAIL... DAMAGING WIND GUSTS TO 70 MPH... THE WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED COUNTIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. && LAT...LON 3700 9564 3681 9564 3693 9593 3700 9596 TIME...MOT...LOC 0247Z 217DEG 6KT 3699 9580 $$
029
WWUS54 KTSA 190301
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1001 PM CDT SAT JUN 18 2011
OKC147-190311-
/O.CAN.KTSA.SV.W.0416.000000T0000Z-110619T0315Z/
WASHINGTON OK-
1001 PM CDT SAT JUN 18 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WASHINGTON COUNTY IS
CANCELLED...
LAT...LON 3700 9564 3681 9564 3688 9581 3694 9581
3695 9579 3700 9579 3700 9578
TIME...MOT...LOC 0301Z 266DEG 12KT 3699 9573
$$
OKC105-190315-
/O.CON.KTSA.SV.W.0416.000000T0000Z-110619T0315Z/
NOWATA OK-
1001 PM CDT SAT JUN 18 2011
...TORNADO WARNING CONTINUES FOR NORTHERN NOWATA COUNTY UNTIL 1030
PM CDT...
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR NORTHWESTERN NOWATA COUNTY...
AT 957 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES NORTHEAST
OF WANN...MOVING EAST AT 15 MPH.
STORM HAZARDS INCLUDE...
DAMAGING GOLF BALL SIZE HAIL...
DAMAGING WIND GUSTS TO 70 MPH...
THE WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED
COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
&&
LAT...LON 3700 9564 3681 9564 3688 9581 3694 9581
3695 9579 3700 9579 3700 9578
TIME...MOT...LOC 0301Z 266DEG 12KT 3699 9573
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 7:35 PM CDT | Tornado Warning | TSA | Osage | 40 min |
| Jun 18, 7:48 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 57 min |
| Jun 18, 8:04 PM CDT | Tornado Warning | TSA | Osage | 41 min |
| Jun 18, 8:33 PM CDT | Tornado Warning | TSA | Osage, Washington | 42 min |
| Jun 18, 8:37 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Washington | 38 min |
| Jun 18, 9:11 PM CDT | Tornado Warning | TSA | Nowata, Washington | 49 min |
| Jun 18, 9:37 PM CDT | Tornado Warning | TSA | Nowata | 43 min |
| Jun 18, 10:08 PM CDT | Special Weather Statement | TSA | Osage | 37 min |
| Jun 19, 2:20 AM CDT | Special Weather Statement | TSA | Nowata | 25 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2011Every severe thunderstorm warning in 2011
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.