Alert archive / Arkansas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 30, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 3, 2012, 7:20 PM CDT for Crawford County, Franklin County, Sebastian County, Arkansas. It was in force for 40 min. 5 reports 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
- Apr 3, 2012, 7:20 PM CDT (00:20 UTC)
- Expired
- Apr 3, 2012, 8:00 PM CDT
- In force
- 40 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Crawford County, AR, Franklin County, AR, Sebastian County, AR
The radar
The Western Arkansas radar (KSRX), 26 km from the middle of the area, began a volume at 00:23 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 |
|---|---|---|---|
| Apr 3, 7:24 PM CDT | TSTM WND GST 60 | Fort Smith, AR | HWY 540 AND FREE FERRY RD. |
| Apr 3, 7:24 PM CDT | HAIL 1 | Fort Smith, AR | HWY 540 AND FREE FERRY RD. |
| Apr 3, 7:35 PM CDT | TSTM WND GST 60 | Alma, AR | TIME ESTIMATED. |
| Apr 3, 7:47 PM CDT | HAIL 1 | 1 E Lavaca, AR | TIME ESTIMATED. |
| Apr 3, 7:51 PM CDT | TSTM WND DMG | Van Buren, AR | TREES DOWN IN VAN BUREN AND MULBERRY. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 3, 3:43 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 0.3 hours before the alert went out and 162 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
- 140 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 1481 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
598
WUUS54 KTSA 040020
SVRTSA
ARC033-047-131-040100-
/O.NEW.KTSA.SV.W.0030.120404T0020Z-120404T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
720 PM CDT TUE APR 3 2012
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CRAWFORD COUNTY IN NORTHWEST ARKANSAS
WESTERN FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS
NORTHERN SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS
* UNTIL 800 PM CDT
* AT 718 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR VAN BUREN...
MOVING NORTHEAST AT 35 MPH.
STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...
WIND GUSTS TO 60 MPH...
* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...FIGURE
FIVE...LAVACA...CEDARVILLE...RUDY...ALMA...DYER...MOUNTAINBURG...
MULBERRY...CHESTER AND LAKE FORT SMITH.
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 0 AND 28.
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.
TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. TAKE COVER
ON THE LOWEST FLOOR IN AN INTERIOR ROOM AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 3543 9392 3524 9431 3544 9445 3553 9445
3577 9407
TIME...MOT...LOC 0021Z 235DEG 32KT 3542 9431
$$1 follow-up statement
045 WWUS54 KTSA 040048 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 748 PM CDT TUE APR 3 2012 ARC033-047-131-040100- /O.CON.KTSA.SV.W.0030.000000T0000Z-120404T0100Z/ CRAWFORD AR-FRANKLIN AR-SEBASTIAN AR- 748 PM CDT TUE APR 3 2012 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR NORTHEASTERN SEBASTIAN...WESTERN FRANKLIN AND CRAWFORD COUNTIES... AT 747 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR PLEASANT HILL...MOVING NORTHEAST AT 35 MPH. STORM HAZARDS INCLUDE... QUARTER SIZE HAIL... WIND GUSTS TO 60 MPH... MINOR FLOODING IN AREAS OF POOR DRAINAGE... SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...PINEY... TONEY...LOCKE...FERN AND MOUNT GAYLER. THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 5 AND 28. PRECAUTIONARY/PREPAREDNESS ACTIONS... PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. TAKE COVER ON THE LOWEST FLOOR IN AN INTERIOR ROOM AND STAY AWAY FROM WINDOWS. && LAT...LON 3529 9421 3555 9442 3577 9408 3543 9392 TIME...MOT...LOC 0049Z 235DEG 32KT 3556 9406 $$
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 7:19 PM CDT | Areal Flood Advisory | TSA | Crawford, Sebastian | 2 hr |
| Apr 3, 7:22 PM CDT | Special Weather Statement | TSA | Sebastian | 68 min |
| Apr 3, 7:51 PM CDT | Severe Thunderstorm Warning | TSA | Franklin, Sebastian | 54 min |
| Apr 3, 7:57 PM CDT | Severe Thunderstorm Warning | TSA | Crawford, Franklin, Madison, Washington | 48 min |
| Apr 3, 8:35 PM CDT | Areal Flood Advisory | TSA | Crawford, Franklin, Sebastian | 3 hr |
| Apr 3, 8:46 PM CDT | Special Weather Statement | TSA | Franklin | 59 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.