Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 299, NWS Shreveport, LA

July 6, 1997Natchitoches Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Jul 6, 1997, 4:47 PM CDT for Natchitoches Parish, Louisiana. It was in force for 43 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: Jul 6, 1997, 4:47 PM CDT (21:47 UTC)
Expired: Jul 6, 1997, 5:30 PM CDT
In force: 43 min
Issued by: NWS Shreveport, LA
Area: Whole counties

County Natchitoches Parish, LA

What was reported inside it

Time	Report	Where	Remark
Jul 6, 5:05 PM CDT	Thunderstorm Wind 60	Campti, LA	Trees down along Hwy 71.
Jul 6, 5:15 PM CDT	Thunderstorm Wind 60	Creston, LA	Trees reported down along Hwy 153.

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 nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 9.8 hours before the alert went out and 104 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: 506 J/kg
Mixed-layer CIN: -161 J/kg
Mixed-layer LCL: 969 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 126 m²/s²
0-3 km storm-relative helicity: 125 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.4

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 Jul 6, 3:34 PM CDT, 1 hour 13 minutes earlier.

Area forecast discussion, Jul 6, 3:34 PM CDT, 1 hour 13 minutes before

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In the hours before

Local storm report, Jul 6, 1:42 PM CDT, 3 hours 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
142 PM CDT SUN JUL 06 1997

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

1242 PM    KILGORE                   TX   WIND DAMAGE
07/06/97   GREGG                          TREES AND POWERLINES DOWN.

0110 PM    LONGVIEW                  TX   WIND DAMAGE
07/06/97   GREGG                          POWERLINE DOWN IN
                                          NORTHEAST LONGVIEW.

10

Local storm report, Jul 6, 1:46 PM CDT, 3 hours 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
142 PM CDT SUN JUL 06 1997

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

1242 PM    KILGORE                   TX   WIND DAMAGE
07/06/97   GREGG                          TREES AND POWERLINES DOWN.

0110 PM    LONGVIEW                  TX   WIND DAMAGE
07/06/97   GREGG                          POWERLINE DOWN IN
               \                           NORTHEAST LONGVIEW.

10

Local storm report, Jul 6, 2:14 PM CDT, 2 hours 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
214 PM CDT SUN JUL 06 1997

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

0145 PM    15 S HENDERSON            TX   .88 INCH HAIL
07/06/97   RUSK                           NICKEL SIZE HAIL REPORTED
                                          BY STORM SPOTTER ON HWY
                                          259.

0200 PM    10 NW LUFKIN              TX   WIND DAMAGE
07/06/97   ANGELINA                       TREES AND POWERLINES DOWN
                                          AT THE INTERSECTION OF HWY
                                          103 AND HWY 7.

0205 PM    10 NW LUFKIN              TX   1.75 INCH HAIL
07/06/97   ANGELINA                       MARBLE TO GOLFBALL SIZE
                                          HAIL FELL FOR 3-5 MILES
                                          ALONG HWY 69.

0205 PM    GARRISON                  TX   WIND DAMAGE
07/06/97   NACOGDOCHES                    TREES AND POWERLINES DOWN.
                                          ONE CAR HIT A TREE...AND A
                                          HAYTRUCK JACK-KNIFED
                                          TRYING TO AVOID HITTING
                                          THE CAR.  NO INJURIES.

10

Local storm report, Jul 6, 2:17 PM CDT, 2 hours 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
214 PM CDT SUN JUL 06 1997

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

0145 PM    15 S HENDERSON            TX   .88 INCH HAIL
07/06/97   RUSK                           NICKEL SIZE HAIL REPORTED
                                          BY STORM SPOTTER ON HWY
                                          259.

0200 PM    10 NW LUFKIN              TX   WIND DAMAGE
07/06/97   ANGELINA                       TREES AND POWERLINES DOWN
                                          AT THE INTERSECTION OF HWY
                                          103 AND HWY 7.

0205 PM    10 NW LUFKIN              TX   1.75 INCH HAIL
07/06/97   ANGELINA                       MARBLE TO GOLFBALL SIZE
                                          HAIL FELL FOR 3-5 MILES
                                          ALONG HWY 69.

0205 PM    GARRISON                  TX   WIND DAMAGE
07/06/97   NACOGDOCHES                    TREES AND POWERLINES DOWN.
                                          ONE CAR HIT A TREE...AND A
                                          HAYTRUCK JACK-KNIFED
                                          TRYING TO AVOID HITTING
                                          THE CAR.  NO INJURIES.

10

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 12:37 PM CDT	Severe Thunderstorm Warning	SHV	Gregg	53 min
Jul 6, 1:07 PM CDT	Severe Thunderstorm Warning	SHV	Rusk	53 min
Jul 6, 1:54 PM CDT	Severe Thunderstorm Warning	SHV	Nacogdoches	66 min
Jul 6, 1:57 PM CDT	Severe Thunderstorm Warning	SHV	Angelina	63 min
Jul 6, 3:08 PM CDT	Severe Thunderstorm Warning	SHV	Sabine	52 min
Jul 6, 3:16 PM CDT	Severe Thunderstorm Warning	SHV	Angelina	44 min
Jul 6, 3:48 PM CDT	Severe Thunderstorm Warning	SHV	Sabine	42 min
Jul 6, 4:07 PM CDT	Severe Thunderstorm Warning	SHV	Bossier	53 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1997 Every 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.