Alert archive / Arkansas / Tornado Warnings in 2015

Tornado Warning 2, NWS Shreveport, LA

April 9, 2015Nevada County, Arkansas

NWS Shreveport, LA issued this tornado warning at Apr 9, 2015, 2:48 PM CDT for Nevada County, Arkansas. It was in force for 27 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 9, 2015, 2:48 PM CDT (19:48 UTC)
Expired: Apr 9, 2015, 3:15 PM CDT
In force: 27 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Nevada County, AR

The radar

The Little Rock radar (KLZK), 148 km from the middle of the area, began a volume at 19:50 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

Shreveport, LA (KBAD), launched 12:00Z, 7.8 hours before the alert went out and 151 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 641 J/kg
Mixed-layer CIN: -116 J/kg
Mixed-layer LCL: 674 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 207 m²/s²
0-3 km storm-relative helicity: 244 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

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

828 
WFUS54 KSHV 091948
TORSHV
ARC099-092015-
/O.NEW.KSHV.TO.W.0002.150409T1948Z-150409T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
248 PM CDT THU APR 9 2015

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL NEVADA COUNTY IN SOUTHWESTERN ARKANSAS...

* UNTIL 315 PM CDT
    
* AT 248 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR ROSSTON...OR 9 MILES SOUTH OF PRESCOTT...
  MOVING EAST AT 30 MPH.

  HAZARD...TORNADO AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* THIS DANGEROUS STORM WILL BE NEAR...
  BLUFF CITY AND WHITE OAK LAKE STATE PARK AROUND 315 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
LANEBURG...MORRIS...MOUNT MORIAH...CALE AND READER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. IF YOU
CANNOT SAFELY DRIVE AWAY FROM THE TORNADO...AS A LAST RESORT...EITHER
PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR VEHICLE AND LIE DOWN
IN A LOW LYING AREA AND PROTECT YOURSELF FROM FLYING DEBRIS.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
SHREVEPORT.

&&

LAT...LON 3381 9324 3381 9318 3380 9318 3381 9316
      3381 9314 3379 9313 3378 9310 3360 9311
      3354 9338 3378 9347 3383 9322
TIME...MOT...LOC 1948Z 248DEG 27KT 3367 9333 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

VII

1 follow-up statement

772 
WWUS54 KSHV 092007
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
307 PM CDT THU APR 9 2015

ARC099-092015-
/O.CON.KSHV.TO.W.0002.000000T0000Z-150409T2015Z/
NEVADA AR-
307 PM CDT THU APR 9 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM CDT FOR
SOUTHEASTERN NEVADA COUNTY...
    
AT 307 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR HAINESVILLE...OR 10 MILES NORTHEAST OF MINEOLA...AND
IS NEARLY STATIONARY.

HAZARD...TORNADO AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
SOUTHEASTERN NEVADA COUNTY...INCLUDING THE FOLLOWING LOCATIONS...
MORRIS...MOUNT MORIAH...CALE AND READER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. IF YOU
CANNOT SAFELY DRIVE AWAY FROM THE TORNADO...AS A LAST RESORT...EITHER
PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR VEHICLE AND LIE DOWN
IN A LOW LYING AREA AND PROTECT YOURSELF FROM FLYING DEBRIS.

IF A TORNADO OR OTHER SEVERE WEATHER IS SPOTTED...REPORT IT TO THE
NATIONAL WEATHER SERVICE OR YOUR LOCAL NEAREST LAW ENFORCEMENT AGENCY
WHO WILL SEND YOUR REPORT. THIS ACT MAY SAVE LIVES OF OTHERS IN THE
PATH OF DANGEROUS WEATHER.

&&

LAT...LON 3381 9324 3381 9318 3380 9318 3381 9316
      3381 9314 3379 9313 3378 9310 3360 9311
      3354 9338 3383 9324 3383 9322
TIME...MOT...LOC 2007Z 248DEG 27KT 3277 9536 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

VII

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 9, 2:35 PM CDT	Special Weather Statement	SHV	Nevada	40 min
Apr 9, 3:25 PM CDT	Severe Thunderstorm Warning	SHV	Columbia, Hempstead, Lafayette, Miller, Nevada	50 min
Apr 9, 3:38 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead, Lafayette, Miller	37 min
Apr 9, 4:20 PM CDT	Severe Thunderstorm Warning	SHV	Lafayette, Miller	40 min
Apr 9, 4:26 PM CDT	Severe Thunderstorm Warning	SHV	Columbia, Hempstead, Lafayette, Nevada	34 min
Apr 9, 4:32 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead, Howard, Little River, Miller, Sevier	28 min
Apr 9, 4:34 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead, Little River	26 min
Apr 9, 4:57 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead, Howard	18 min
Apr 9, 5:26 PM CDT	Severe Thunderstorm Warning	SHV	Miller	49 min
Apr 9, 6:44 PM CDT	Special Weather Statement	SHV	Lafayette	46 min

Nearby

Tornado Warnings in Arkansas, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.