Tornadoes · United States · Louisiana · 2008

EF0 tornado, Gilark to Minden Webster Fld, Louisiana, September 13, 2008

From Gilark to Minden Webster Fld, this EF0 tornado ran 1.9 miles across Webster Parish on September 13, 2008, touching down at 4:09 PM CDT and reaching 40 yards wide. It killed nobody.

The rating scale

Tracks are drawn in the color of the rating. The Enhanced Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. EF065 to 85 mphthis tornado

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. EF186 to 110 mph

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. EF2111 to 135 mph

    Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

  4. EF3136 to 165 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. EF4166 to 200 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. EF5over 200 mph

    Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

  7. Unrated

    The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

The record

Rating
EF0
Date
September 13, 2008
Touchdown
4:09 PM CDT (21:09 UTC)
Lifted
4:10 PM CDT (21:10 UTC)
On the ground
1 minutes
Path length
1.9 miles (3.1 km)
Path width
40 yards (37 m)
Deaths
0
Injuries
0
County
Webster Parish
Touchdown point
32.635, -93.303
Lift-off point
32.663, -93.303
Record number
0809131509-01

What the Weather Service recorded

Hurricane Ike came onshore across extreme southeast Texas during the late night hours of September 12th and the pre-dawn hours of September 13th. The storm made good progress northward during the day of September 13th and brought Tropical Storm force winds to much of northeast Texas and northwest Louisiana and extreme southwest Arkansas. The storm produced widespread downed trees and power lines along with structural damage either from the winds or from downed trees which fell on top of structures. Power outages were widespread across a three state area of northeast Texas, northwest Louisiana and southwest Arkansas. Southwest Electric Power Company (SWEPCO) which provides electricity to a good portion of northeast Texas, northwest Louisiana and southwest Arkansas said that the number of outages peaked at 187,000 customers. Additional power companies were called in from far away as Indiana and Michigan to deal with the numerous power outages. This was the second most number of outages at one time reported in SWEPCO's 96 year history. The most number of outages was 234,000 during the ice storm of December 13th, 2000. The number of power outages in association with Hurricane Ike topped the September 2005 recovery from Hurricane Rita by nearly 1000 customers. The storm also produced tornadoes across portions of north central Louisiana as well as south central Arkansas and east central Texas.

An EF0 tornado touched down northwest of Minden, Louisiana just west of the Minden airport along Methodist Camp Road. The tornado tracked for approximately 2 miles before dissipating near the Kisatchie National Forecast. A few trees and large branches were snapped and damage occurred to some power lines along the 40 mile wide path.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

The warnings

18 minutes of warning. NWS SHV issued a tornado warning for this county at 20:51 UTC, 18 minutes before the tornado touched down, in force until 21:30 UTC.

The county was under a tornado watch, issued at 14:40 UTC and running to 00:00 UTC.

Issued (UTC)ExpiredProductOffice
14:40 UTC00:00 UTCTornado WatchSHV
15:27 UTC16:00 UTCTornado WarningSHV
20:51 UTC21:30 UTCTornado WarningSHV
22:33 UTC04:33 UTCWind AdvisorySHV
04:33 UTC12:00 UTCLake Wind AdvisorySHV

Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.

The forecast that day

The Storm Prediction Center had this point in a Slight Risk, with a 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 20:00 UTC.

SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.

The air that afternoon

The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.

Shreveport, LA (KSHV), 12:00Z

9.2 hours before the tornado, 46 km from the path. September 13, 2008.

Skew-T log-pSkew-T log-p diagram, Shreveport, LA at 12:00Z on 2008-09-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 246 joules per kilogram, CIN -48, lifted condensation level 722 meters above ground. Wind barbs in knots down the right edge.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. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Shreveport, LA at 12:00Z on 2008-09-13The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 294 square meters per square second, 0 to 6 km bulk shear 29 knots.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. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
246 J/kg
Mixed-layer CIN
-48 J/kg
Surface CAPE
344 J/kg
Mixed-layer LCL
722 m above ground
0-6 km bulk shear
29 kt
0-1 km bulk shear
37 kt
0-1 km storm-relative helicity
294 m²/s²
0-3 km storm-relative helicity
402 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.0
0-3 km lapse rate
5.7 K/km

Open this sounding in Storm Lab

Shreveport, LA (KSHV), 00:00Z

2.8 hours after it, 46 km from the path. September 14, 2008.

Skew-T log-pSkew-T log-p diagram, Shreveport, LA at 00:00Z on 2008-09-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 438 joules per kilogram, CIN -15, lifted condensation level 543 meters above ground. Wind barbs in knots down the right edge.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. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Shreveport, LA at 00:00Z on 2008-09-14The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 399 square meters per square second, 0 to 6 km bulk shear 37 knots.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. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
438 J/kg
Mixed-layer CIN
-15 J/kg
Surface CAPE
650 J/kg
Mixed-layer LCL
543 m above ground
0-6 km bulk shear
37 kt
0-1 km bulk shear
54 kt
0-1 km storm-relative helicity
399 m²/s²
0-3 km storm-relative helicity
419 m²/s²
Significant tornado parameter
0.8
Supercell composite
7.4
0-3 km lapse rate
4.7 K/km

Open this sounding in Storm Lab

The surface observations

Barksdale Afb (BAD), 37 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
19:55 UTC81.374.3150° 27 kt40996.6
20:25 UTC84.275.2140° 28 kt40995.6-DZ
20:56 UTC80.675.2140° 31 kt40995.3RA
21:04 UTC78.875.2150° 33 kt46995.3RA BR
21:13 UTC78.875.2160° 27 kt45995.3-RA BR
21:30 UTC78.875.2160° 34 kt49994.6-RA
21:55 UTC79.375160° 30 kt41994.9-DZ
22:01 UTC78.875.2160° 34 kt44994.9+RA
22:06 UTC78.875.2160° 30 kt44994.6-RA
22:09 UTC78.875.2160° 29 kt44994.6-RA BR
22:10 UTC78.875.2160° 32 kt45994.6-RA BR
22:55 UTC78.674.8170° 32 kt44995.6-RA BR

From the Iowa Environmental Mesonet's archive of airport observations.

The radar

The Shreveport radar (KSHV), 55 km away, was scanning. The volume nearest the touchdown began at 21:09 UTC.

Open the radar archive at this moment, over the track

Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)ReportWhereCountyRemark
19:31 UTCTROPICAL STORM3 Wsw ShreveportCaddo, LA56 MPH WIND GUST OBSERVED AT THE SHREVEPORT NATIONAL WEATHER SERVICE FORECAST OFFICE.
20:35 UTCTORNADO3 Sw Hall SummitRed River, LASEVERAL TREES WERE SNAPPED AND KNOCKED OVER ALONG A STRETCH ALONG STATE ROUTE 783 BETWEEN EDGEFIELD AND HALL SUMMIT. THE PATH WAS EF0 DAMAGE ABOUT 40 YARDS WIDE AND .25 MILES LONG.
20:40 UTCFUNNEL CLOUD3 W RinggoldBienville, LASHERIFFS OFFICE REPORTS A FUNNEL CLOUD JUST TO THE WEST OF RINGGOLD.
21:00 UTCTROPICAL STORMShreveportCaddo, LAMORE THAN 17,600 WITHOUT POWER ACROSS CADDO AND BOSSIER PARISHES AS OF 400 PM CDT.
21:09 UTCTORNADO2 Nw MindenWebster, LAAN EF0 TORNADO TOUCHED DOWN 1.5 MILES NORTHWEST OF MINDEN LA JUST WEST OF THE MINDEN AIRPORT ALONG METHODIST CAMP ROAD. THE TORNADO TRACKED FOR APPROXIMATELY 2 MILES BEFORE DISAPATING NEAR THE KISATCHIE NATIONAL FOREST.
21:15 UTCTROPICAL STORMBentonBossier, LAEMERGENCY MANAGEMENT REPORTS TREES BLOCKING HWY 3 NEAR BENTON.
21:40 UTCTROPICAL STORMBentonBossier, LAEMERGENCY MANAGEMENT REPORTS A TREE BLOWN DOWN ONTO A HOUSE AT HWY 3 AND CRESTWOOD CIRCLE.
22:00 UTCTROPICAL STORMBienvilleBienville, LANUMEROUS TREES AND POWER LINES DOWN PARISHWIDE.
22:15 UTCTROPICAL STORMShreveportCaddo, LATREE REPORTED FALLEN ON A HOUSE NEAR THE INTERSECTION OF CORNWELL AND JORDAN ROADS.
22:40 UTCTROPICAL STORMNw ShreveportCaddo, LA*** 2 INJ *** TREE BLOWN ONTO A HOME ON JEFFERSON PAGE RD. TWO INJURIES REPORTED.
22:45 UTCTROPICAL STORMBossier CityBossier, LANUMEROUS TREES AND POWER LINES DOWN PARISHWIDE. A TREE DOWN ON AT LEAST 2 HOMES.
22:45 UTCTROPICAL STORMShreveportCaddo, LANUMEROUS TREES AND POWER LINES DOWN PARISHWIDE.
22:51 UTCTROPICAL STORM3 Se ShreveportCaddo, LAMAJOR GAS LEAK NEXT TO DOWNED, LIVE POWERLINES ON BURLINGAME DR NEAR W 70TH ST.
23:00 UTCTROPICAL STORMHaughtonBossier, LAA TREE WAS BLOWN ONTO A HOME AT HWY 157 NEAR PRINCETON RD.
23:00 UTCTROPICAL STORMHomerClaiborne, LANUMEROUS TREES AND POWER LINES DOWN PARISHWIDE.
23:00 UTCTROPICAL STORMMindenWebster, LANUMEROUS TREES AND POWER LINES DOWN PARISHWIDE. A TREE WAS DOWN ON A CAR.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2008 tornado in LouisianaEvery tornado in Louisiana since 1950Warnings in force in Louisiana nowThe forecast where you are

The other tornadoes of September 13, 2008

30 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
September 138:21 AM CDTEF0Nacogdoches, TX0.375$50,000
September 1310:49 AM CDTEF0Webster Parish, LA0.575
September 1312:16 PM CDTEF0Jackson Parish, LA0.840
September 1312:20 PM CDTEF0Jackson Parish, LA3.150
September 1312:23 PM CDTEF0Lincoln Parish, LA0.350
September 1312:47 PM CDTEF0Lincoln Parish, LA0.340
September 1312:53 PM CDTEF0Union Parish, LA0.340
September 131:05 PM CDTEF0LaSalle Parish, LA1.350$30,000
September 131:20 PM CDTEF0Caldwell Parish, LA0.330
September 131:48 PM CDTEF0Caldwell Parish, LA0.350
September 132:08 PM CDTEF0Union Parish, LA3.550$5,000
September 132:47 PM CDTEF0Union, AR0.330
September 132:51 PM CDTEF0Claiborne, MS1.950
September 133:07 PM CDTEF0Bradley, AR2.450$2,000
September 133:13 PM CDTEF1Saline, AR8.6175$100,000
September 133:16 PM CDTEF1Garland, AR2.430$20,000
September 133:18 PM CDTEF0Union, AR0.540$20,000
September 133:25 PM CDTEF1Saline, AR2.025$6,000
September 134:25 PM EDTEF1Van Buren, MI1.9100
September 134:33 PM EDTEF0Van Buren, MI0.250
September 133:35 PM CDTEF0Red River Parish, LA0.340
September 134:40 PM EDTEF0Kalamazoo, MI1.050
September 134:03 PM CDTEF1Perry, AR1.375$20,000
September 134:20 PM CDTEF1Perry, AR1.530$5,000
September 136:00 PM EDTEF0Eaton, MI3.4300
September 135:57 PM CDTEF1Lonoke, AR0.7100$300,000
September 139:18 PM EDTEF2Wayne, MI2.6200$250,000
September 138:30 PM CDTEF0Natchitoches Parish, LA9.050
September 138:45 PM CDTEF0Winn Parish, LA6.530
September 1311:37 PM CDTEF0Grant Parish, LA4.050

What this means

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

Sources

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.