Alert archive / Arkansas / Tornado Warnings in 2015

Tornado Warning 79, NWS Shreveport, LA

December 27, 2015Hempstead County, Nevada County, Arkansas

NWS Shreveport, LA issued this tornado warning at Dec 27, 2015, 3:52 PM CST for Hempstead County, Nevada County, Arkansas. It was in force for 23 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: Dec 27, 2015, 3:52 PM CST (21:52 UTC)
Expired: Dec 27, 2015, 4:15 PM CST
In force: 23 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Tornado: Observed
Hail: 0.75 in

Counties Hempstead County, AR, Nevada County, AR

The radar

The Little Rock radar (KLZK), 150 km from the middle of the area, began a volume at 21:51 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
Dec 27, 4:08 PM CST	HAIL 1.75	Emmet, AR	GOLF BALL SIZE HAIL

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
Dec 27, 8:56 AM CST	Tornado Watch	SPC	10 hr
Dec 27, 2:47 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 12:00Z, 9.9 hours before the alert went out and 157 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: 625 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 707 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 350 m²/s²
0-3 km storm-relative helicity: 426 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 8.3

Open this sounding in Storm Lab

The text

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

276 
WFUS54 KSHV 272152
TORSHV
ARC057-099-272215-
/O.NEW.KSHV.TO.W.0079.151227T2152Z-151227T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
352 PM CST SUN DEC 27 2015

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN NEVADA COUNTY IN SOUTHWESTERN ARKANSAS...
  SOUTHEASTERN HEMPSTEAD COUNTY IN SOUTHWESTERN ARKANSAS...

* UNTIL 415 PM CST
    
* AT 345 PM CST...A TORNADO PRODUCING STORM WAS LOCATED NEAR
  PATMOS...OR NEAR HOPE...MOVING NORTH AT 35 MPH.

  HAZARD...DAMAGING TORNADO. 

  SOURCE...RADAR CONFIRMED TORNADO. 

  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. 

* LOCATIONS IMPACTED INCLUDE...
  HOPE...PRESCOTT...EMMET...PERRYTOWN...BODCAW...SUTTON...LANEBURG AND
  BOUGHTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. 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 3395 9342 3396 9339 3395 9337 3390 9330
      3388 9331 3384 9329 3384 9326 3383 9326
      3383 9324 3353 9342 3359 9363 3395 9351
      3396 9347
TIME...MOT...LOC 2151Z 198DEG 29KT 3365 9350 

TORNADO...OBSERVED
HAIL...<.75IN

$$

19

1 follow-up statement

844 
WWUS54 KSHV 272208
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
408 PM CST SUN DEC 27 2015

ARC057-099-272215-
/O.CON.KSHV.TO.W.0079.000000T0000Z-151227T2215Z/
NEVADA AR-HEMPSTEAD AR-
408 PM CST SUN DEC 27 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CST FOR
NORTHWESTERN NEVADA AND EAST CENTRAL HEMPSTEAD COUNTIES...
        
AT 345 PM CST...A CONFIRMED TORNADO WAS LOCATED NEAR PATMOS...MOVING
NORTH AT 35 MPH.

HAZARD...DAMAGING TORNADO AND GOLF BALL SIZE HAIL. 

SOURCE...RADAR CONFIRMED TORNADO. 

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. 

LOCATIONS IMPACTED INCLUDE...
PRESCOTT...EMMET...LANEBURG AND BOUGHTON. 

LAT...LON 3395 9342 3396 9339 3395 9337 3390 9330
      3388 9331 3384 9329 3384 9326 3383 9326
      3383 9324 3366 9334 3373 9358 3395 9351
      3396 9347
TIME...MOT...LOC 2207Z 198DEG 29KT 3378 9345 

TORNADO...OBSERVED
HAIL...1.75IN

$$

19

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 27, 5:42 AM CST	Lake Wind Advisory	SHV	Miller	18 hr
Dec 27, 11:07 AM CST	Tornado Warning	SHV	Sevier	38 min
Dec 27, 12:17 PM CST	Flash Flood Warning	SHV	Little River, Sevier	12 hr
Dec 27, 12:46 PM CST	Flash Flood Warning	SHV	Howard	12 hr
Dec 27, 3:02 PM CST	Severe Thunderstorm Warning	SHV	Union	43 min
Dec 27, 3:12 PM CST	Tornado Warning	SHV	Union	33 min
Dec 27, 3:29 PM CST	Tornado Warning	SHV	Hempstead, Lafayette, Nevada	31 min
Dec 27, 3:40 PM CST	Tornado Warning	SHV	Union	35 min
Dec 27, 3:59 PM CST	Tornado Warning	SHV	Columbia, Lafayette	31 min
Dec 27, 4:10 PM CST	Tornado Warning	SHV	Union	35 min
Dec 27, 4:13 PM CST	Tornado Warning	SHV	Hempstead, Nevada	32 min
Dec 27, 4:26 PM CST	Tornado Warning	SHV	Columbia, Nevada	34 min
Dec 27, 4:35 PM CST	Tornado Warning	SHV	Howard, Sevier	40 min
Dec 27, 4:46 PM CST	Severe Thunderstorm Warning	SHV	Little River	59 min
Dec 27, 4:58 PM CST	Tornado Warning Tornado observed	SHV	Nevada	17 min
Dec 27, 5:22 PM CST	Tornado Warning	SHV	Miller	23 min
Dec 27, 5:29 PM CST	Severe Thunderstorm Warning	SHV	Hempstead, Howard, Little River, Miller, Sevier	46 min
Dec 27, 5:42 PM CST	Tornado Warning	SHV	Miller	33 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.