Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 445, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jul 2, 2011, 5:31 PM CDT for Benton County, Washington County, Arkansas. It was in force for 29 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 2, 2011, 5:31 PM CDT (22:31 UTC)
- Expired
- Jul 2, 2011, 6:00 PM CDT
- In force
- 29 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Benton County, AR, Washington County, AR
The radar
The Western Arkansas radar (KSRX), 96 km from the middle of the area, began a volume at 22:33 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 2, 5:44 PM CDT | TSTM WND GST 60 | 1 Ssw Oak Grove, AR | TREE LIMBS DOWN ON HIGHWAY 412 1 MILE WEST OF BYPASS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 10.5 hours before the alert went out and 92 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
- 2208 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1414 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
838 WUUS54 KTSA 022231 SVRTSA ARC007-143-022300- /O.NEW.KTSA.SV.W.0445.110702T2231Z-110702T2300Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 531 PM CDT SAT JUL 2 2011 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN BENTON COUNTY IN NORTHWEST ARKANSAS NORTHERN WASHINGTON COUNTY IN NORTHWEST ARKANSAS * UNTIL 600 PM CDT * AT 529 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 3 MILES SOUTHWEST OF SPRINGDALE...MOVING WEST AT 5 MPH. STORM HAZARDS INCLUDE... QUARTER SIZE HAIL... WIND GUSTS TO 60 MPH... * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE... TONTITOWN AND CAVE SPRINGS. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM THAT IS LIKELY PRODUCING DAMAGING HAIL. IF NO UNDERGROUND SHELTER IS AVAILABLE TAKE COVER ON THE LOWEST FLOOR IN AN INTERIOR ROOM AND STAY AWAY FROM WINDOWS. && LAT...LON 3608 9438 3629 9434 3625 9406 3606 9410 TIME...MOT...LOC 2232Z 097DEG 4KT 3617 9418 $$
2 follow-up statements
306 WWUS54 KTSA 022245 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 545 PM CDT SAT JUL 2 2011 ARC007-143-022300- /O.CON.KTSA.SV.W.0445.000000T0000Z-110702T2300Z/ BENTON AR-WASHINGTON AR- 545 PM CDT SAT JUL 2 2011 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR NORTHERN WASHINGTON AND SOUTHERN BENTON COUNTIES... AT 542 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR OAK GROVE AND WAS NEARLY STATIONARY. STORM HAZARDS INCLUDE... QUARTER SIZE HAIL... WIND GUSTS TO 60 MPH... SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...OAK GROVE...ELM SPRINGS...TONTITOWN...WHEELER...SAVOY...CAVE SPRINGS... HEALING SPRINGS...HARMON AND ROCKY COMFORT. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM THAT IS LIKELY PRODUCING DAMAGING HAIL. IF NO UNDERGROUND SHELTER IS AVAILABLE TAKE COVER ON THE LOWEST FLOOR IN AN INTERIOR ROOM AND STAY AWAY FROM WINDOWS. && LAT...LON 3608 9438 3629 9434 3625 9406 3606 9410 TIME...MOT...LOC 2246Z 110DEG 2KT 3617 9417 $$
870 WWUS54 KTSA 022257 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 557 PM CDT SAT JUL 2 2011 ARC007-143-022307- /O.EXP.KTSA.SV.W.0445.000000T0000Z-110702T2300Z/ BENTON AR-WASHINGTON AR- 557 PM CDT SAT JUL 2 2011 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WASHINGTON AND SOUTHERN BENTON COUNTIES EXPIRES AT 600 PM CDT... THE THUNDERSTORM HAS WEAKENED BELOW SEVERE LIMITS...THEREFORE THE SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE. GUSTY WINDS...SMALL HAIL AND HEAVY RAIN WILL STILL BE POSSIBLE WITH THIS STORM. LAT...LON 3608 9438 3629 9434 3625 9406 3606 9410 TIME...MOT...LOC 2257Z 110DEG 2KT 3617 9418 $$
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 2:31 PM CDT | Special Weather Statement | TSA | Carroll | 29 min |
| Jul 2, 3:06 PM CDT | Special Weather Statement | TSA | Carroll | 24 min |
| Jul 2, 3:14 PM CDT | Special Weather Statement | TSA | Sebastian | 31 min |
| Jul 2, 3:50 PM CDT | Special Weather Statement | TSA | Madison | 25 min |
| Jul 2, 3:58 PM CDT | Special Weather Statement | TSA | Carroll | 32 min |
| Jul 2, 4:00 PM CDT | Special Weather Statement | TSA | Madison | 30 min |
| Jul 2, 4:20 PM CDT | Special Weather Statement | TSA | Madison | 40 min |
| Jul 2, 4:47 PM CDT | Special Weather Statement | TSA | Franklin | 43 min |
| Jul 2, 5:01 PM CDT | Special Weather Statement | TSA | Madison | 44 min |
| Jul 2, 5:21 PM CDT | Special Weather Statement | TSA | Washington | 39 min |
| Jul 2, 6:07 PM CDT | Special Weather Statement | TSA | Benton | 23 min |
| Jul 2, 6:28 PM CDT | Severe Thunderstorm Warning | TSA | Benton | 23 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.