Alert archive / Arkansas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 99, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 29, 2012, 11:58 PM CDT for Benton County, Arkansas. It was in force for 30 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
- May 29, 2012, 11:58 PM CDT (04:58 UTC)
- Expired
- May 30, 2012, 12:28 AM CDT
- In force
- 30 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
County Benton County, AR
The radar
The Springfield radar (KSGF), 111 km from the middle of the area, began a volume at 05:01 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, 5.0 hours before the alert went out and 61 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
- 131 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 2811 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 124 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
028 WUUS54 KTSA 300458 SVRTSA ARC007-300545- /O.NEW.KTSA.SV.W.0099.120530T0458Z-120530T0545Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 1158 PM CDT TUE MAY 29 2012 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN BENTON COUNTY IN NORTHWEST ARKANSAS * UNTIL 1245 AM CDT * AT 1156 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 3 MILES NORTH OF HIWASSE...MOVING EAST AT 30 MPH. STORM HAZARDS INCLUDE... QUARTER SIZE HAIL... WIND GUSTS TO 60 MPH... * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...BELLA VISTA...PEA RIDGE...GARFIELD AND GATEWAY. 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 3636 9389 3641 9452 3651 9452 3650 9387 TIME...MOT...LOC 0458Z 269DEG 25KT 3648 9430 $$
3 follow-up statements
717 WWUS54 KTSA 300512 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 1212 AM CDT WED MAY 30 2012 ARC007-300545- /O.CON.KTSA.SV.W.0099.000000T0000Z-120530T0545Z/ BENTON AR- 1212 AM CDT WED MAY 30 2012 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR NORTHERN BENTON COUNTY... AT 1206 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR HIWASSE...MOVING EAST AT 20 MPH. THE STORM HAD WEAKENED AND SLOWED DOWN...BUT IT COULD STILL PRODUCE HAIL AND STRONG WINDS. STORM HAZARDS INCLUDE... DIME SIZE HAIL... WIND GUSTS TO 60 MPH... SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...MILLER... BELLA VISTA...PEA RIDGE...AVOCA...GARFIELD...GATEWAY...HILL TOP AND WALNUT HILL. PRECAUTIONARY/PREPAREDNESS ACTIONS... PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. && LAT...LON 3636 9389 3641 9452 3651 9452 3650 9387 TIME...MOT...LOC 0511Z 269DEG 15KT 3649 9430 $$
423 WWUS54 KTSA 300520 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 1220 AM CDT WED MAY 30 2012 ARC007-300545- /O.CON.KTSA.SV.W.0099.000000T0000Z-120530T0545Z/ BENTON AR- 1220 AM CDT WED MAY 30 2012 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR NORTHERN BENTON COUNTY... AT 1215 AM CDT...A SEVERE THUNDERSTORM WAS CENTERED NEAR SULPHUR SPRINGS AND HIWASSE...MOVING EAST AT 10 MPH. THE STORM CONTINUED TO SLOW DOWN AND HAS WEAKENED. IF THE WEAKENING CONTINUES... THE WARNING WILL BE CANCELLED EARLY. UNTIL THAT TIME...BE ALERT FOR STRONG WINDS AND HAIL WITH THE STORM. && LAT...LON 3642 9448 3650 9451 3650 9387 3636 9389 TIME...MOT...LOC 0518Z 270DEG 10KT 3648 9439 $$
972 WWUS54 KTSA 300528 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 1228 AM CDT WED MAY 30 2012 ARC007-300538- /O.CAN.KTSA.SV.W.0099.000000T0000Z-120530T0545Z/ BENTON AR- 1228 AM CDT WED MAY 30 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN BENTON COUNTY IS CANCELLED... THE THUNDERSTORM HAS WEAKENED BELOW SEVERE LIMITS...THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED. LAT...LON 3642 9448 3650 9451 3650 9387 3636 9389 TIME...MOT...LOC 0528Z 267DEG 3KT 3648 9443 $$
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 11:17 PM CDT | Special Weather Statement | TSA | Crawford, Sebastian | 58 min |
| May 29, 11:53 PM CDT | Special Weather Statement | TSA | Benton | 52 min |
| May 30, 12:27 AM CDT | Special Weather Statement | TSA | Carroll, Franklin, Madison | 63 min |
| May 30, 1:59 AM CDT | Special Weather Statement | TSA | Madison | 31 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2012Every severe thunderstorm warning in 2012
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.