Alert archive / Texas / Tornado Warnings in 2000

Tornado Warning 45, NWS Shreveport, LA

May 19, 2000Harrison County, Marion County, Texas

NWS Shreveport, LA issued this tornado warning at May 19, 2000, 4:42 AM CDT for Harrison County, Marion County, Texas. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
May 19, 2000, 4:42 AM CDT (09:42 UTC)
Expired
May 19, 2000, 5:45 AM CDT
In force
63 min
Issued by
NWS Shreveport, LA
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Harrison County, TX, Marion County, TX

The radar

The Shreveport radar (KSHV), 58 km from the middle of the area, began a volume at 09:43 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 nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 9.7 hours before the alert went out and 64 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 2000-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1305 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 2000-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
1305 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
1293 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
158 m²/s²
Significant tornado parameter
0.4
Supercell composite
5.4

Open this sounding in Storm Lab

The text

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

581 
WFUS54 KSHV 190943
TORSHV
TXC203-315-191045-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
442 AM CDT FRI MAY 19 2000

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN HARRISON COUNTY IN TEXAS
  MARION COUNTY IN TEXAS

* UNTIL 545 AM CDT

* AT 442 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 10 MILES SOUTHWEST OF JEFFERSON...OR ABOUT 11 MILES
  NORTHWEST OF MARSHALL...MOVING NORTHEAST AT 25 MPH.
 
REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
FOR...
  NORTHERN HARRISON COUNTY IN TEXAS
  EASTERN MARION COUNTY IN TEXAS
UNTIL 545 AM CDT.

LAT...LON 3272 9458 3255 9451 3266 9407 3287 9416

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 8:15 PM CDTSevere Thunderstorm WarningSHVRed River60 min
May 18, 11:17 PM CDTFlash Flood WarningSHVRed River4 hr
May 19, 3:24 AM CDTSevere Thunderstorm WarningSHVSmith36 min
May 19, 3:46 AM CDTSevere Thunderstorm WarningSHVUpshur34 min
May 19, 4:00 AM CDTFlash Flood WarningSHVBowie, Cass4 hr
May 19, 4:22 AM CDTSevere Thunderstorm WarningSHVHarrison53 min

Nearby

Tornado Warnings in Texas, 2000Every tornado warning in 2000Tornadoes in 2000

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.