Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 255, NWS Shreveport, LA

June 17, 1997Wood County, Texas

NWS Shreveport, LA issued this severe thunderstorm warning at Jun 17, 1997, 12:57 AM CDT for Wood County, Texas. It was in force for 48 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 17, 1997, 12:57 AM CDT (05:57 UTC)
Expired
Jun 17, 1997, 1:45 AM CDT
In force
48 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County Wood County, TX

The radar

The Shreveport radar (KSHV), 149 km from the middle of the area, began a volume at 05:58 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
Jun 17, 1:04 AM CDTThunderstorm Wind 70Quitman, TX
Jun 17, 1:04 AM CDTHail 0.75Quitman, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 16, 11:30 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 6.0 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-pSkew-T log-p diagram, Shreveport, LA at 00:00Z on 1997-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2912 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 1997-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.193958Sfc1 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
2912 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1044 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.7
Supercell composite
5.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 16, 8:28 PM CDT, 4 hours 29 minutes earlier.

Area forecast discussion, Jun 16, 8:28 PM CDT, 4 hours 29 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
827 PM CDT MON JUN 16 1997

CONVECTION CONTS DVLPG TO THE W AND N OF THE CWA THIS EVNG WHERE ADAP
GRAPHICS INDICATE BEST MSTR CONVERGENCE AND LOWEST LIS. SOME ACTIVITY
TRYING TO DVLP ACRS EXTREME SRN PORTIONS OF CWA...BUT THIS SHUD RMN
BLO SVR CRITERIA AS BEST INSTABILITY STILL W OF THE AREA.

LOW LVL SRLY FLOW SHUD INCREASE ACRS THE AREA TONIGHT AS WEAK FNTL
BOUNDARY OVER NW TX STARTS TO EDGE EWD. CONVECTION SHUD CONT MOVG TO
THE E WITH MORE DVLPMT EXPECTED ACRS E TX WHERE INSTABILITY WILL LIKELY
BE GREATEST JUST ARND MIDNIGHT.

DONT SEE ANY NEED TO CHANGE GOING FCSTS. FFA ACRS E TX STILL LOOKS GUD
AND MAY NEED TO LOOK AT ISSUING FOR LIT.

18

In the hours before

Local storm report, Jun 17, 12:44 AM CDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OFFICE SHREVEPORT LA
1244 AM CDT THU JUN 17 1997

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1115 PM    10 W SAN AUGUSTINE        TX   1.75 INCH HAIL
06/16/97   SAN AUGUSTINE

18
Local storm report, Jun 17, 12:45 AM CDT, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OFFICE SHREVEPORT LA
1244 AM CDT THU JUN 17 1997

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....
6
1115 PM    10 W SAN AUGUSTINE        TX   1.75 INCH HAIL
06/16/97   SAN AUGUSTINE

18

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 10:12 PM CDTSevere Thunderstorm WarningSHVAngelina, Nacogdoches48 min
Jun 16, 11:09 PM CDTSevere Thunderstorm WarningSHVSan Augustine66 min
Jun 17, 1:20 AM CDTSevere Thunderstorm WarningSHVFranklin25 min
Jun 17, 1:35 AM CDTSevere Thunderstorm WarningSHVCamp, Titus40 min
Jun 17, 1:58 AM CDTSevere Thunderstorm WarningSHVSmith, Wood62 min
Jun 17, 2:07 AM CDTSevere Thunderstorm WarningSHVMorris53 min
Jun 17, 2:23 AM CDTSevere Thunderstorm WarningSHVUpshur67 min
Jun 17, 2:35 AM CDTFlash Flood WarningSHVCamp, Morris, Titus, Wood4 hr
Jun 17, 2:52 AM CDTSevere Thunderstorm WarningSHVGregg53 min
Jun 17, 2:57 AM CDTSevere Thunderstorm WarningSHVHarrison, Marion63 min
Jun 17, 3:18 AM CDTSevere Thunderstorm WarningSHVCass42 min
Jun 17, 6:37 AM CDTSevere Thunderstorm WarningSHVAngelina68 min
Jun 17, 3:44 AM CDTSevere Thunderstorm WarningSHVBossier, Caddo61 min
Jun 17, 5:11 AM CDTSevere Thunderstorm WarningSHVRed River49 min
Jun 17, 5:28 AM CDTSevere Thunderstorm WarningSHVBienville, Lincoln62 min
Jun 17, 5:36 AM CDTSevere Thunderstorm WarningSHVNatchitoches69 min
Jun 17, 5:46 AM CDTSevere Thunderstorm WarningSHVJackson, Winn59 min
Jun 17, 6:11 AM CDTSevere Thunderstorm WarningSHVOuachita49 min
Jun 17, 6:27 AM CDTSevere Thunderstorm WarningSHVCaldwell63 min
Jun 17, 8:29 AM CDTSevere Thunderstorm WarningSHVGrant, Natchitoches, Winn61 min
Jun 17, 2:40 AM CDTFlash Flood WarningSHVHoward, Sevier4 hr
Jun 17, 3:06 AM CDTSevere Thunderstorm WarningSHVHoward, Little River, Sevier54 min
Jun 17, 3:33 AM CDTSevere Thunderstorm WarningSHVHempstead, Nevada57 min
Jun 17, 3:41 AM CDTSevere Thunderstorm WarningSHVMiller49 min
Jun 17, 5:20 AM CDTSevere Thunderstorm WarningSHVUnion40 min

Nearby

Severe Thunderstorm Warnings in Texas, 1997Every severe thunderstorm warning in 1997

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.