Alert archive / Louisiana / Tornado Warnings in 1989

Tornado Warning 25, NWS Shreveport, LA

June 27, 1989Ouachita Parish, Louisiana

NWS Shreveport, LA issued this tornado warning at Jun 27, 1989, 4:34 PM CDT for Ouachita Parish, Louisiana. It was in force for 56 min. 1 report 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 27, 1989, 4:34 PM CDT (21:34 UTC)
Expired
Jun 27, 1989, 5:30 PM CDT
In force
56 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County Ouachita Parish, LA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Jun 27, 5:13 PM CDTTornado F1Ouachita, LA

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.6 hours before the alert went out and 196 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, Jackson, MS at 12:00Z on 1989-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1251 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 1989-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.1939Sfc1 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
1251 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
575 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 12:40 PM CDTFlash Flood WarningSHVBienville, Natchitoches, Red River5 hr
Jun 27, 12:40 PM CDTFlash Flood WarningSHVDe Soto, Sabine5 hr
Jun 27, 5:03 PM CDTTornado WarningSHVMorehouse57 min
Jun 27, 5:38 PM CDTTornado WarningSHVOuachita52 min
Jun 27, 5:50 PM CDTFlash Flood WarningSHVNatchitoches, Sabine6 hr
Jun 27, 5:50 PM CDTFlash Flood WarningSHVBienville, Red River6 hr
Jun 27, 5:50 PM CDTFlash Flood WarningSHVWinn6 hr

Nearby

Tornado Warnings in Louisiana, 1989Every tornado warning in 1989Tornadoes in 1989

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.