Alert archive / Arkansas / Tornado Warnings in 2009

Tornado Warning 17, NWS Tulsa, OK

April 29, 2009Madison County, Arkansas

NWS Tulsa, OK issued this tornado warning at Apr 29, 2009, 5:04 PM CDT for Madison County, Arkansas. It was in force for 24 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
Apr 29, 2009, 5:04 PM CDT (22:04 UTC)
Expired
Apr 29, 2009, 5:28 PM CDT
In force
24 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon

County Madison County, AR

The radar

The Western Arkansas radar (KSRX), 105 km from the middle of the area, began a volume at 22:07 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 12:00Z, 10.1 hours before the alert went out and 96 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.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2009-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 484 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2009-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
484 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
529 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS54 KTSA 292204
TORTSA
ARC087-292245-
/O.NEW.KTSA.TO.W.0017.090429T2204Z-090429T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
504 PM CDT WED APR 29 2009

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  MADISON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 545 PM CDT

* AT 504 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 5 MILES
  SOUTHWEST OF WITTER...MOVING NORTHEAST AT 25 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...WITTER...
  AURORA...MARBLE AND KINGSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS

&&

LAT...LON 3620 9367 3606 9344 3586 9374 3590 9383
TIME...MOT...LOC 2205Z 216DEG 21KT 3590 9376

$$
2 follow-up statements
000 
WWUS54 KTSA 292214
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
514 PM CDT WED APR 29 2009

ARC087-292245-
/O.CON.KTSA.TO.W.0017.000000T0000Z-090429T2245Z/
MADISON AR-
514 PM CDT WED APR 29 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR EASTERN
MADISON COUNTY...

AT 513 PM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS 
LOCATED NEAR WITTER...MOVING NORTHEAST AT 25 MPH.  THE ROTATION IN 
THIS STORM HAS WEAKENED SLIGHTLY...HOWEVER A QUICK RE-STRENGTHENING 
REMAINS POSSIBLE.

SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...WITTER...
AURORA...HARMONY...ALABAM...MARBLE AND KINGSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS

&&

LAT...LON 3588 9372 3593 9380 3620 9367 3606 9344
TIME...MOT...LOC 2213Z 216DEG 21KT 3594 9373

$$
000 
WWUS54 KTSA 292228
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
528 PM CDT WED APR 29 2009

ARC087-292238-
/O.CAN.KTSA.TO.W.0017.000000T0000Z-090429T2245Z/
MADISON AR-
528 PM CDT WED APR 29 2009

...THE TORNADO WARNING FOR EASTERN MADISON COUNTY IS CANCELLED...

THE THUNDERSTORM HAS WEAKENED BELOW SEVERE LIMITS...THEREFORE THE
TORNADO WARNING HAS BEEN CANCELLED.

GUSTY WINDS TO 40 MPH AND PERIODS OF HEAVY RAIN WILL STILL BE 
POSSIBLE WITH THIS STORM AS TRACKS INTO NORTHEASTERN MADISON COUNTY.

LAT...LON 3588 9372 3593 9380 3620 9367 3606 9344
TIME...MOT...LOC 2228Z 216DEG 21KT 3601 9367

$$

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 28, 7:19 PM CDTSpecial Weather StatementTSACarroll26 min
Apr 29, 2:49 AM CDTFlash Flood WatchTSABenton, Carroll, Madison, Washington40 hr
Apr 29, 4:13 PM CDTSpecial Weather StatementTSAFranklin47 min
Apr 29, 4:31 PM CDTSpecial Weather StatementTSAFranklin44 min
Apr 29, 4:59 PM CDTSpecial Weather StatementTSAMadison46 min

Nearby

Tornado Warnings in Arkansas, 2009Every tornado warning in 2009Tornadoes in 2009

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.