Alert archive / Louisiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 91, NWS Shreveport, LA

February 26, 1998LaSalle Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Feb 26, 1998, 9:10 AM CST for LaSalle Parish, Louisiana. It was in force for 50 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: Feb 26, 1998, 9:10 AM CST (15:10 UTC)
Expired: Feb 26, 1998, 10:00 AM CST
In force: 50 min
Issued by: NWS Shreveport, LA
Area: Whole counties

County LaSalle Parish, LA

What was reported inside it

Time	Report	Where	Remark
Feb 26, 9:10 AM CST	Hail 0.75	Jena, LA
Feb 26, 9:22 AM CST	Hail 0.75	Jena, 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.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 3.2 hours before the alert went out and 200 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: 428 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 616 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 263 m²/s²
0-3 km storm-relative helicity: 323 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.0

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.

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 Feb 26, 2:45 AM CST, 6 hours 25 minutes earlier.

Area forecast discussion, Feb 26, 2:45 AM CST, 6 hours 25 minutes before

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In the hours before

Local storm report, Feb 26, 4:05 AM CST, 5 hours 5 minutes before

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Special weather statement, Feb 26, 5:40 AM CST, 3 hours 30 minutes before

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Special weather statement, Feb 26, 5:40 AM CST, 3 hours 30 minutes before

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Local storm report, Feb 26, 7:30 AM CST, 1 hour 40 minutes before

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Local storm report, Feb 26, 8:12 AM CST, 58 minutes before

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Local storm report, Feb 26, 8:12 AM CST, 58 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 26, 12:08 AM CST	Severe Thunderstorm Warning	SHV	Cherokee, Smith	62 min
Feb 26, 12:18 AM CST	Severe Thunderstorm Warning	SHV	Camp, Morris, Titus	62 min
Feb 26, 12:18 AM CST	Severe Thunderstorm Warning	SHV	Upshur, Wood	62 min
Feb 26, 12:31 AM CST	Severe Thunderstorm Warning	SHV	Gregg	49 min
Feb 26, 12:39 AM CST	Severe Thunderstorm Warning	SHV	Bowie, Cass	96 min
Feb 26, 12:39 AM CST	Severe Thunderstorm Warning	SHV	Angelina, Nacogdoches	96 min
Feb 26, 12:39 AM CST	Severe Thunderstorm Warning	SHV	Harrison, Rusk	96 min
Feb 26, 12:39 AM CST	Severe Thunderstorm Warning	SHV	Marion	96 min
Feb 26, 1:19 AM CST	Severe Thunderstorm Warning	SHV	Panola	61 min
Feb 26, 1:31 AM CST	Severe Thunderstorm Warning	SHV	Shelby	59 min
Feb 26, 1:50 AM CST	Severe Thunderstorm Warning	SHV	Sabine, San Augustine	75 min
Feb 26, 1:45 AM CST	Severe Thunderstorm Warning	SHV	Caddo, De Soto	95 min
Feb 26, 1:45 AM CST	Severe Thunderstorm Warning	SHV	Bossier	95 min
Feb 26, 2:16 AM CST	Severe Thunderstorm Warning	SHV	Sabine	64 min
Feb 26, 2:34 AM CST	Severe Thunderstorm Warning	SHV	Natchitoches, Red River	61 min
Feb 26, 2:42 AM CST	Severe Thunderstorm Warning	SHV	Bienville, Claiborne, Webster	93 min
Feb 26, 3:28 AM CST	Severe Thunderstorm Warning	SHV	Lincoln	47 min
Feb 26, 3:33 AM CST	Severe Thunderstorm Warning	SHV	Winn	62 min
Feb 26, 1:26 AM CST	Severe Thunderstorm Warning	SHV	Miller	64 min
Feb 26, 1:39 AM CST	Severe Thunderstorm Warning	SHV	Hempstead	61 min
Feb 26, 1:58 AM CST	Severe Thunderstorm Warning	SHV	Lafayette	62 min
Feb 26, 2:28 AM CST	Severe Thunderstorm Warning	SHV	Columbia, Nevada	62 min
Feb 26, 3:10 AM CST	Severe Thunderstorm Warning	SHV	Union	65 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1998 Every severe thunderstorm warning in 1998

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.