Alert archive / Arkansas / Tornado Warnings in 2011
Tornado Warning 42, NWS Jackson, MS
NWS Jackson, MS issued this tornado warning at Apr 15, 2011, 4:56 AM CDT for Ashley County, Chicot County, Arkansas. It was in force for 64 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
- Apr 15, 2011, 4:56 AM CDT (09:56 UTC)
- Expired
- Apr 15, 2011, 6:00 AM CDT
- In force
- 64 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
Counties Ashley County, AR, Chicot County, AR
The radar
The Jackson/Brandon,MS radar (KDGX), 174 km from the middle of the area, began a volume at 09:55 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 15, 5:15 AM CDT | TSTM WND DMG | Parkdale, AR | TREES WERE DOWNED ALONG AR HIGHWAY 8 IN PARKDALE |
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 15, 2:19 AM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 9.9 hours before the alert went out and 164 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1585 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 237 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
461 WFUS54 KJAN 150956 TORJAN ARC003-017-151100- /O.NEW.KJAN.TO.W.0042.110415T0956Z-110415T1100Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE JACKSON MS 456 AM CDT FRI APR 15 2011 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN ASHLEY COUNTY IN SOUTHEAST ARKANSAS... THIS INCLUDES THE CITIES OF...WILMOT...HAMBURG... SOUTHWESTERN CHICOT COUNTY IN SOUTHEAST ARKANSAS... * UNTIL 600 AM CDT * AT 455 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES SOUTHEAST OF HAMBURG MOVING EAST AT 35 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PARKDALE AND PORTLAND PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION NOW. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT FRIDAY MORNING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND WESTERN MISSISSIPPI. && LAT...LON 3326 9127 3301 9134 3306 9185 3328 9180 TIME...MOT...LOC 0955Z 279DEG 29KT 3316 9173 $$ 7
2 follow-up statements
780 WWUS54 KJAN 151021 SVSJAN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 521 AM CDT FRI APR 15 2011 ARC003-017-151100- /O.CON.KJAN.TO.W.0042.000000T0000Z-110415T1100Z/ ASHLEY AR-CHICOT AR- 521 AM CDT FRI APR 15 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 AM CDT FOR SOUTHWESTERN CHICOT AND SOUTHEASTERN ASHLEY COUNTIES... AT 521 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS SEVERE THUNDERSTORM WAS LOCATED NEAR PARKDALE MOVING EAST AT 35 MPH. THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED COUNTIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION NOW. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT FRIDAY MORNING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND WESTERN MISSISSIPPI. && LAT...LON 3326 9127 3301 9134 3306 9185 3328 9180 TIME...MOT...LOC 1021Z 282DEG 29KT 3312 9148 $$ 7
311 WWUS54 KJAN 151045 SVSJAN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 545 AM CDT FRI APR 15 2011 ARC003-151054- /O.CAN.KJAN.TO.W.0042.000000T0000Z-110415T1100Z/ ASHLEY AR- 545 AM CDT FRI APR 15 2011 ...THE TORNADO WARNING FOR SOUTHEASTERN ASHLEY COUNTY IS CANCELLED... THE STORM THAT PROMPTED THE WARNING HAS MOVED OUT OF THE COUNTY. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT FRIDAY MORNING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND WESTERN MISSISSIPPI. LAT...LON 3327 9145 3326 9127 3301 9134 3302 9145 TIME...MOT...LOC 1044Z 282DEG 29KT 3308 9137 $$ ARC017-151100- /O.CON.KJAN.TO.W.0042.000000T0000Z-110415T1100Z/ CHICOT AR- 545 AM CDT FRI APR 15 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 AM CDT FOR SOUTHWESTERN CHICOT COUNTY... AT 544 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS SEVERE THUNDERSTORM WAS LOCATED OVER SOUTHWESTERN CHICOT COUNTY MOVING EAST AT 35 MPH. THE SEVERE THUNDERSTORMS WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION NOW. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT FRIDAY MORNING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND WESTERN MISSISSIPPI. && LAT...LON 3327 9145 3326 9127 3301 9134 3302 9145 TIME...MOT...LOC 1044Z 282DEG 29KT 3308 9137 $$ 7
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 3:31 AM CDT | Special Weather Statement | JAN | Ashley, Chicot | 69 min |
| Apr 15, 3:39 AM CDT | Severe Thunderstorm Warning | JAN | Ashley | 51 min |
| Apr 15, 4:14 AM CDT | Severe Thunderstorm Warning | JAN | Chicot | 61 min |
| Apr 15, 4:30 AM CDT | Severe Thunderstorm Warning | JAN | Ashley | 60 min |
| Apr 15, 4:43 AM CDT | Tornado Warning | JAN | Chicot | 47 min |
| Apr 15, 5:18 AM CDT | Severe Thunderstorm Warning | JAN | Chicot | 42 min |
| Apr 15, 5:30 AM CDT | Tornado Warning | JAN | Chicot | 30 min |
Nearby
Tornado Warnings in Arkansas, 2011Every tornado warning in 2011Tornadoes 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.