Alert archive / Arkansas / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 39, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Mar 9, 2017, 9:22 PM CST for 4 counties in Arkansas. It was in force for 41 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
- Mar 9, 2017, 9:22 PM CST (03:22 UTC)
- Expired
- Mar 9, 2017, 10:03 PM CST
- In force
- 41 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Crawford County, AR, Franklin County, AR, Madison County, AR, Washington County, AR
The radar
The Western Arkansas radar (KSRX), 77 km from the middle of the area, began a volume at 03:21 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 |
|---|---|---|---|
| Mar 9, 9:24 PM CST | HAIL 1 | Greenland, AR |
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 |
|---|---|---|---|
| Mar 9, 3:52 PM CST | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 3.4 hours before the alert went out and 332 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
- 1504 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 1524 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 5.6
The text
As transmitted.
788
WUUS54 KTSA 100322
SVRTSA
ARC033-047-087-143-100415-
/O.NEW.KTSA.SV.W.0039.170310T0322Z-170310T0415Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
922 PM CST THU MAR 9 2017
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Southwestern Madison County in northwestern Arkansas...
Northern Franklin County in west central Arkansas...
Northeastern Crawford County in northwestern Arkansas...
Southeastern Washington County in northwestern Arkansas...
* Until 1015 PM CST
* At 922 PM CST, severe thunderstorms were located along a line
extending from 2 miles west of Greenland to 7 miles southwest of
Japton, moving southeast at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations in or near the path include...
Fayetteville... Farmington...
Prairie Grove... Elkins...
West Fork... Greenland...
Winslow... St. Paul...
Wesley... Saint Paul...
Boston... Pettigrew...
Brentwood... Japton...
Cass... Black Oak...
Georgetown... Walnut Grove...
Bidville... Woolsey...
This includes Interstate 49 between mile markers 45 and 60.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3577 9370 3571 9370 3564 9407 3604 9435
3605 9390 3581 9352 3576 9352
TIME...MOT...LOC 0322Z 299DEG 25KT 3600 9422 3588 9389
HAIL...1.00IN
WIND...60MPH
$$2 follow-up statements
162
WWUS54 KTSA 100348
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
948 PM CST THU MAR 9 2017
ARC033-047-087-143-100415-
/O.CON.KTSA.SV.W.0039.000000T0000Z-170310T0415Z/
Madison AR-Franklin AR-Crawford AR-Washington AR-
948 PM CST THU MAR 9 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CST
FOR SOUTHWESTERN MADISON...NORTHERN FRANKLIN...NORTHEASTERN CRAWFORD
AND SOUTHEASTERN WASHINGTON COUNTIES...
At 948 PM CST, severe thunderstorms were located along a line
extending from 5 miles northeast of Brentwood to 3 miles southwest of
Pettigrew, moving southeast at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations in or near the path include...
West Fork... Winslow...
St. Paul... Saint Paul...
Pettigrew... Brentwood...
Japton... Boston...
Cass... Dutton...
Wyola... Bidville...
Woolsey... Delaney...
Arnett... Brashears...
Crosses... Patrick...
Combs... Locke...
This includes Interstate 49 between mile markers 46 and 50.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3577 9370 3571 9370 3564 9407 3589 9423
3598 9379 3581 9352 3576 9352
TIME...MOT...LOC 0348Z 299DEG 25KT 3592 9403 3579 9370
HAIL...1.00IN
WIND...60MPH
$$376
WWUS54 KTSA 100403
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
1003 PM CST THU MAR 9 2017
ARC033-047-087-143-100413-
/O.CAN.KTSA.SV.W.0039.000000T0000Z-170310T0415Z/
Madison AR-Franklin AR-Crawford AR-Washington AR-
1003 PM CST THU MAR 9 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MADISON...
NORTHERN FRANKLIN...NORTHEASTERN CRAWFORD AND SOUTHEASTERN WASHINGTON
COUNTIES IS CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning has been cancelled. However small hail is
still possible with these thunderstorms.
A severe thunderstorm watch remains in effect until 1100 PM CST for
northwestern and west central Arkansas.
LAT...LON 3577 9370 3571 9370 3564 9407 3589 9423
3598 9379 3581 9352 3576 9352
TIME...MOT...LOC 0402Z 299DEG 25KT 3587 9392 3574 9359
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 9, 7:24 PM CST | Severe Thunderstorm Warning | TSA | Carroll | 66 min |
| Mar 9, 7:28 PM CST | Severe Thunderstorm Warning | TSA | Benton | 47 min |
| Mar 9, 8:02 PM CST | Severe Thunderstorm Warning | TSA | Benton, Carroll, Madison, Washington | 58 min |
| Mar 9, 8:30 PM CST | Severe Thunderstorm Warning | TSA | Carroll, Madison | 30 min |
| Mar 9, 8:41 PM CST | Severe Thunderstorm Warning | TSA | Madison, Washington | 64 min |
| Mar 9, 9:24 PM CST | Special Weather Statement | TSA | Madison | 51 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2017Every severe thunderstorm warning in 2017
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.