Alert archive / Arkansas / Tornado Warnings in 2016

Tornado Warning 15, NWS Shreveport, LA

March 13, 2016Hempstead County, Nevada County, Arkansas

NWS Shreveport, LA issued this tornado warning at Mar 13, 2016, 7:30 PM CDT for Hempstead County, Nevada County, Arkansas. It was in force for 33 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
Mar 13, 2016, 7:30 PM CDT (00:30 UTC)
Expired
Mar 13, 2016, 8:03 PM CDT
In force
33 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.25 in

Counties Hempstead County, AR, Nevada County, AR

The radar

The Shreveport radar (KSHV), 141 km from the middle of the area, began a volume at 00:33 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 13, 2:10 PM CDTTornado WatchSPC5 hr
Mar 13, 7:11 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 00:00Z, 0.5 hours before the alert went out and 137 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, Shreveport, LA at 00:00Z on 2016-03-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 947 joules per kilogram.LCLEL10008507005003002001001 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, Shreveport, LA at 00:00Z on 2016-03-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 square meters per square second.19395878Sfc1 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
947 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1702 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
145 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.7

Open this sounding in Storm Lab

The text

As transmitted.

144 
WFUS54 KSHV 140030
TORSHV
ARC057-099-140115-
/O.NEW.KSHV.TO.W.0015.160314T0030Z-160314T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
730 PM CDT SUN MAR 13 2016

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

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

* UNTIL 815 PM CDT
    
* AT 730 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
  WAS LOCATED 7 MILES SOUTHWEST OF WASHINGTON...OR 12 MILES WEST OF
  HOPE...MOVING EAST AT 30 MPH.

  HAZARD...TORNADO AND HALF DOLLAR 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...
  WASHINGTON AROUND 745 PM CDT. 
  HOPE AROUND 755 PM CDT. 
  PERRYTOWN AROUND 800 PM CDT. 
  EMMET AROUND 810 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
OAKHAVEN AND MCNAB.

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.

&&

LAT...LON 3365 9384 3373 9386 3385 9348 3368 9338
TIME...MOT...LOC 0030Z 265DEG 25KT 3372 9379 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

MD
2 follow-up statements
923 
WWUS54 KSHV 140047
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
747 PM CDT SUN MAR 13 2016

ARC057-099-140115-
/O.CON.KSHV.TO.W.0015.000000T0000Z-160314T0115Z/
NEVADA AR-HEMPSTEAD AR-
747 PM CDT SUN MAR 13 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR WEST
CENTRAL NEVADA AND EAST CENTRAL HEMPSTEAD COUNTIES...
    
AT 746 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR WASHINGTON...OR NEAR HOPE...MOVING EAST AT 30 MPH.

HAZARD...TORNADO AND HALF DOLLAR 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...
  HOPE AROUND 755 PM CDT. 
  PERRYTOWN AROUND 800 PM CDT. 
  EMMET AROUND 810 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
OAKHAVEN.

LAT...LON 3368 9366 3379 9368 3385 9348 3369 9339
TIME...MOT...LOC 0046Z 265DEG 25KT 3373 9365 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

MD
418 
WWUS54 KSHV 140103
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
803 PM CDT SUN MAR 13 2016

ARC057-099-140113-
/O.CAN.KSHV.TO.W.0015.000000T0000Z-160314T0115Z/
NEVADA AR-HEMPSTEAD AR-
803 PM CDT SUN MAR 13 2016

...THE TORNADO WARNING FOR WEST CENTRAL NEVADA AND EAST CENTRAL
HEMPSTEAD COUNTIES IS CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT FOR SOUTHWESTERN
ARKANSAS.

LAT...LON 3368 9366 3379 9368 3385 9348 3369 9339
TIME...MOT...LOC 0101Z 265DEG 25KT 3374 9351 

$$

MD

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 13, 7:02 PM CDTSevere Thunderstorm WarningSHVColumbia, Union44 min
Mar 13, 7:08 PM CDTTornado WarningSHVUnion11 min
Mar 13, 7:08 PM CDTTornado WarningSHVUnion52 min
Mar 13, 7:38 PM CDTSevere Thunderstorm WarningSHVUnion67 min
Mar 13, 8:03 PM CDTSevere Thunderstorm WarningSHVHempstead, Nevada42 min
Mar 13, 8:16 PM CDTSevere Thunderstorm WarningSHVUnion24 min
Mar 13, 9:57 PM CDTAreal Flood WarningSHVUnion66 hr

Nearby

Tornado Warnings in Arkansas, 2016Every tornado warning in 2016Tornadoes in 2016

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.