Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 32, NWS Shreveport, LA

March 27, 2021Cherokee County, Nacogdoches County, Rusk County, Texas

NWS Shreveport, LA issued this severe thunderstorm warning at Mar 27, 2021, 5:55 PM CDT for Cherokee County, Nacogdoches County, Rusk County, Texas. It was in force for 50 min. 3 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
Mar 27, 2021, 5:55 PM CDT (22:55 UTC)
Expired
Mar 27, 2021, 6:45 PM CDT
In force
50 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

Counties Cherokee County, TX, Nacogdoches County, TX, Rusk County, TX

The radar

The Shreveport radar (KSHV), 154 km from the middle of the area, began a volume at 22:59 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
Mar 27, 6:04 PM CDTTORNADO9 Ssw Rusk, TXAN EF2 TORNADO TRACKED FROM 9 MILES SSW OF RUSK TO 4 MILES ESE OF REKLAW. SEVERAL HUNDRED TREES WERE SNAPPED CONTINUOUSLY ALONG THE PATH ALONG CR-1211 AND CR-1209. EST. PEAK WINDS WERE 120 MPH. PATH LENGTH WAS 20.67 MILES. MAX. WIDTH WAS 500 YARDS.
Mar 27, 6:25 PM CDTTORNADO6 Ssw Reklaw, TXSTORM CHASER REPORT OF A TORNADO ON THE GROUND CROSSING HIGHWAY 343. TREE AND STRUCTURE DAMAGE OBSERVED.
Mar 27, 6:33 PM CDTTORNADO2 Se Reklaw, TXTREES DOWN ACROSS HWY 204 NEAR THE RUSK COUNTY LINE.

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
Mar 27, 3:25 PM CDTTornado WatchSPC10 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 10.9 hours before the alert went out and 163 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 12:00Z on 2021-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 951 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2021-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 192 square meters per square second.1939587897Sfc1 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
951 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
670 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
192 m²/s²
0-3 km storm-relative helicity
238 m²/s²
Significant tornado parameter
0.8
Supercell composite
5.6

Open this sounding in Storm Lab

The text

As transmitted.

978 
WUUS54 KSHV 272255
SVRSHV
TXC073-347-401-272345-
/O.NEW.KSHV.SV.W.0032.210327T2255Z-210327T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Shreveport LA
555 PM CDT Sat Mar 27 2021

The National Weather Service in Shreveport has issued a

* Severe Thunderstorm Warning for...
  Southwestern Rusk County in northeastern Texas...
  Northwestern Nacogdoches County in eastern Texas...
  Central Cherokee County in northeastern Texas...

* Until 645 PM CDT.

* At 555 PM CDT, a severe thunderstorm was located 9 miles south of
  Maydelle, or 12 miles southwest of Rusk, moving northeast at 30
  mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Rusk, Sacul, Ponta, Gallatin and Reklaw. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1100 PM CDT for eastern and
northeastern Texas.

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

&&

LAT...LON 3197 9503 3181 9486 3157 9525 3159 9528
      3161 9526 3163 9529 3166 9528 3168 9529
      3171 9531 3171 9533 3172 9534 3174 9533
      3173 9536
TIME...MOT...LOC 2255Z 229DEG 27KT 3166 9528 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

19
1 follow-up statement
809 
WWUS54 KSHV 272318
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
618 PM CDT Sat Mar 27 2021

TXC073-347-401-272345-
/O.CON.KSHV.SV.W.0032.000000T0000Z-210327T2345Z/
Rusk TX-Nacogdoches TX-Cherokee TX-
618 PM CDT Sat Mar 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR SOUTHWESTERN RUSK...NORTHWESTERN NACOGDOCHES AND CENTRAL CHEROKEE
COUNTIES...

At 618 PM CDT, a severe thunderstorm was located over Rusk, moving
northeast at 30 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Rusk, Sacul, Ponta, Gallatin and Reklaw. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1100 PM CDT for eastern and
northeastern Texas.

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

&&

LAT...LON 3183 9488 3167 9516 3180 9526 3197 9503
TIME...MOT...LOC 2318Z 229DEG 27KT 3178 9512 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

19

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 5:05 PM CDTSevere Thunderstorm WarningSHVBowie40 min
Mar 27, 5:47 PM CDTSpecial Weather StatementSHVCherokee43 min
Mar 27, 5:51 PM CDTSpecial Weather StatementSHVCherokee39 min
Mar 27, 6:03 PM CDTTornado WarningSHVCherokee27 min
Mar 27, 6:27 PM CDTTornado WarningSHVCherokee, Nacogdoches, Rusk48 min
Mar 27, 6:31 PM CDTSevere Thunderstorm WarningSHVBowie, Cass59 min
Mar 27, 6:54 PM CDTTornado Warning Tornado observedConsiderable damage threatSHVPanola, Rusk, Shelby51 min

Nearby

Severe Thunderstorm Warnings in Texas, 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.