Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 90, NWS Shreveport, LA

April 9, 20215 counties in Arkansas

NWS Shreveport, LA issued this severe thunderstorm warning at Apr 9, 2021, 11:55 PM CDT for 5 counties in Arkansas. It was in force for 65 min. 6 reports 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
Apr 9, 2021, 11:55 PM CDT (04:55 UTC)
Expired
Apr 10, 2021, 1:00 AM CDT
In force
65 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Columbia County, AR, Hempstead County, AR, Lafayette County, AR, Miller County, AR, Nevada County, AR

The radar

The Shreveport radar (KSHV), 140 km from the middle of the area, began a volume at 04:57 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

TimeReportWhereRemark
Apr 10, 12:08 AM CDTTSTM WND DMGLewisville, ARAR 29 IS BLOCKED BY LARGE TREE IN TOWN.
Apr 10, 12:10 AM CDTTSTM WND DMG4 Nne Buckner, ARDOWNED TREE BLOCKING HWY 53 NORTH OF BUCKNER.
Apr 10, 12:10 AM CDTTSTM WND DMG4 S Lewisville, ARTREE FELL ON A VEHICLE, NO INJURIES REPORTED.
Apr 10, 12:12 AM CDTTSTM WND DMGLewisville, ARTREE DOWN ON A HOME IN LEWISVILLE, NO INJURIES REPORTED.
Apr 10, 12:14 AM CDTHAIL 0.5Lewisville, AR1/2 INCH HAIL IN LEWISVILLE - NO POWER IN TOWN.
Apr 10, 12:15 AM CDTTSTM WND DMGBodcaw, ARWIDESPREAD TREES REPORTED DOWN ACROSS THE ENTIRE COUNTY.

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.

IssuedProductOfficeLasted
Apr 9, 5:32 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 9, 8:44 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 4.9 hours before the alert went out and 135 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 2021-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 148 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2021-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 329 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
148 J/kg
Mixed-layer CIN
-321 J/kg
Mixed-layer LCL
2441 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
329 m²/s²
0-3 km storm-relative helicity
421 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

382 
WUUS54 KSHV 100455
SVRSHV
ARC027-057-073-091-099-100600-
/O.NEW.KSHV.SV.W.0090.210410T0455Z-210410T0600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Shreveport LA
1155 PM CDT Fri Apr 9 2021

The National Weather Service in Shreveport has issued a

* Severe Thunderstorm Warning for...
  Southeastern Hempstead County in southwestern Arkansas...
  Central Miller County in southwestern Arkansas...
  Lafayette County in southwestern Arkansas...
  Nevada County in southwestern Arkansas...
  Columbia County in southwestern Arkansas...

* Until 100 AM CDT.

* At 1155 PM CDT, severe thunderstorms were located along a line
  extending from near Fulton to 6 miles west of Garland to near Queen
  City, moving southeast at 60 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Magnolia, Prescott, Stamps, Waldo, Lewisville, McNeil, Fouke,
  Bradley, Taylor, Emmet, Emerson, Buckner, Rosston, Garland,
  Willisville, Bodcaw, Bluff City, Smithland, Village and Macedonia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3395 9337 3390 9330 3384 9329 3383 9323
      3380 9318 3382 9314 3378 9310 3338 9312
      3338 9298 3302 9299 3302 9383 3329 9401
      3363 9348 3396 9346
TIME...MOT...LOC 0455Z 256DEG 83KT 3360 9372 3339 9381 3321 9410 

HAIL...0.75IN
WIND...60MPH
 
$$

19

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 8:33 PM CDTSpecial Weather StatementSHVUnion42 min
Apr 9, 10:48 PM CDTSevere Thunderstorm WarningSHVLittle River, Sevier42 min
Apr 9, 11:18 PM CDTSevere Thunderstorm WarningSHVHempstead, Howard, Little River, Miller, Sevier42 min
Apr 9, 11:24 PM CDTTornado WarningSHVLittle River36 min
Apr 9, 11:40 PM CDTTornado WarningSHVHempstead, Little River, Miller, Nevada50 min
Apr 9, 11:42 PM CDTSevere Thunderstorm WarningSHVMiller63 min
Apr 10, 12:41 AM CDTSpecial Weather StatementSHVUnion49 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2021Every severe thunderstorm warning in 2021

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.