Alert archive / Arkansas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 21, NWS Little Rock, AR

March 25, 20154 counties in Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Mar 25, 2015, 9:03 PM CDT for 4 counties in Arkansas. It was in force for 42 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: Mar 25, 2015, 9:03 PM CDT (02:03 UTC)
Expired: Mar 25, 2015, 9:45 PM CDT
In force: 42 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon

Counties Baxter County, AR, Fulton County, AR, Izard County, AR, Marion County, AR

The radar

The Little Rock radar (KLZK), 151 km from the middle of the area, began a volume at 02:03 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
Mar 25, 9:25 PM CDT	HAIL 1	Norfork, AR

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
Mar 25, 2:16 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Little Rock, AR (KBYH), launched 00:00Z, 2.1 hours before the alert went out and 253 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: 264 J/kg
Mixed-layer CIN: -213 J/kg
Mixed-layer LCL: 1469 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 165 m²/s²
0-3 km storm-relative helicity: 315 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.7

Open this sounding in Storm Lab

The text

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

933 
WUUS54 KLZK 260203
SVRLZK
ARC005-049-065-089-260245-
/O.NEW.KLZK.SV.W.0021.150326T0203Z-150326T0245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LITTLE ROCK AR
903 PM CDT WED MAR 25 2015

THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN BAXTER COUNTY IN NORTH CENTRAL ARKANSAS...
  SOUTHWESTERN FULTON COUNTY IN NORTH CENTRAL ARKANSAS...
  NORTHWESTERN IZARD COUNTY IN NORTH CENTRAL ARKANSAS...
  SOUTHEASTERN MARION COUNTY IN NORTH CENTRAL ARKANSAS...

* UNTIL 945 PM CDT

* AT 901 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  LION HILL...OR 12 MILES SOUTHWEST OF MOUNTAIN HOME...AND MOVING
  EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WIDEMAN...            SHIPP...              SALESVILLE...
  RODNEY...             PUSH MTN...           PINEVILLE...
  OXFORD...             NORFORK DAM...        NORFORK...
  LOWER BUFFALO WILDERNESS AREA...            LION HILL...
  HERRON...             DIAMOND BAY...        CULP...
  CARTNEY...            CALICO ROCK...        BRIARCLIFF...
  BEXAR...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3637 9199 3614 9187 3611 9219 3613 9219
      3611 9220 3607 9253 3624 9258
TIME...MOT...LOC 0203Z 257DEG 32KT 3618 9244

$$

56

The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 25, 7:13 PM CDT	Severe Thunderstorm Warning	LZK	Boone, Marion	47 min
Mar 25, 7:24 PM CDT	Special Weather Statement	LZK	Baxter	31 min
Mar 25, 7:44 PM CDT	Severe Thunderstorm Warning	LZK	Baxter	16 min
Mar 25, 7:58 PM CDT	Special Weather Statement	LZK	Fulton	32 min
Mar 25, 8:01 PM CDT	Severe Thunderstorm Warning	LZK	Boone, Marion	34 min
Mar 25, 8:08 PM CDT	Severe Thunderstorm Warning	LZK	Fulton	37 min
Mar 25, 8:12 PM CDT	Flash Flood Warning	LZK	Baxter, Boone, Fulton, Marion	3 hr
Mar 25, 8:21 PM CDT	Severe Thunderstorm Warning	LZK	Fulton, Sharp	39 min
Mar 25, 8:35 PM CDT	River Flood Warning	LZK	Randolph	71 hr
Mar 25, 8:40 PM CDT	Severe Thunderstorm Warning	LZK	Boone, Marion	50 min
Mar 25, 8:52 PM CDT	Severe Thunderstorm Warning	LZK	Fulton, Sharp	38 min
Mar 25, 9:00 PM CDT	Severe Thunderstorm Warning	LZK	Boone, Marion	30 min
Mar 25, 9:16 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Izard, Stone	44 min
Mar 25, 9:23 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Marion	52 min
Mar 25, 9:40 PM CDT	Severe Thunderstorm Warning	LZK	Newton, Searcy	50 min
Mar 25, 10:00 PM CDT	Special Weather Statement	LZK	Sharp	45 min
Mar 25, 10:31 PM CDT	Severe Thunderstorm Warning	LZK	Newton, Pope, Searcy, Van Buren	44 min
Mar 25, 10:41 PM CDT	Severe Thunderstorm Warning	LZK	Johnson, Logan, Yell	64 min
Mar 26, 1:11 AM CDT	Severe Thunderstorm Warning	LZK	Polk, Scott	64 min
Mar 26, 2:47 AM CDT	Lake Wind Advisory	LZK	Arkansas, Baxter, Bradley, Calhoun, Clark, Cleburne and 28 more	13 hr
Mar 26, 3:00 AM CDT	Special Weather Statement	LZK	Pike	45 min
Mar 26, 3:30 AM CDT	Special Weather Statement	LZK	Hot Spring	45 min
Mar 26, 9:03 AM CDT	River Flood Advisory	LZK	Fulton, Sharp	36 hr
Mar 26, 11:32 AM CDT	River Flood Warning	LZK	Lawrence, Randolph	49 hr

Nearby

Severe Thunderstorm Warnings in Arkansas, 2015 Every severe thunderstorm warning 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.