Alert archive / Arkansas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 85, NWS Shreveport, LA

February 26, 1998Columbia County, Nevada County, Arkansas

NWS Shreveport, LA issued this severe thunderstorm warning at Feb 26, 1998, 2:28 AM CST for Columbia County, Nevada County, Arkansas. It was in force for 62 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, 2:28 AM CST (08:28 UTC)
Expired
Feb 26, 1998, 3:30 AM CST
In force
62 min
Issued by
NWS Shreveport, LA
Area
Whole counties

Counties Columbia County, AR, Nevada County, AR

The radar

The Shreveport radar (KSHV), 122 km from the middle of the area, began a volume at 08:27 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
Feb 26, 2:45 AM CSTThunderstorm Wind 60Waterloo, AR
Feb 26, 2:55 AM CSTThunderstorm Wind 60Magnolia, AR

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
Feb 26, 2:15 AM CSTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 8.5 hours before the alert went out and 116 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 1998-02-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 1998-02-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 142 square meters per square second.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.
Mixed-layer CAPE
1 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
1619 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
142 m²/s²
0-3 km storm-relative helicity
145 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.

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 25, 9:05 PM CST, 5 hours 23 minutes earlier.

Area forecast discussion, Feb 25, 9:05 PM CST, 5 hours 23 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
905 PM CST WED FEB 25 1998

WINDS ARE IN THE PROCESS OF DROPPING OFF AND THIS SHOULD ALLOW GOOD
RADIATIONAL COOLING WITH THE DRY AIR OVER THE REGION TONIGHT...MAY
NEED TO LOWER TEMPS A TAD ACROSS NORTH LA AND PORTIONS OF SOUTH AR.
MORNING GRIDDED DATA INDICATES THAT A MID CLOUD DECK WILL BEGIN
SPREADING ACROSS THE REGION TOMORROW AFTERNOON AND EVENING...SO
PROBABLY NEED TO CHANGE WORDING SOME FOR NORTH LA.

IV

In the hours before

Local storm report, Feb 26, 1:13 AM CST, 1 hour 15 minutes before
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Local storm report, Feb 26, 1:13 AM CST, 1 hour 15 minutes before
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Special weather statement, Feb 26, 1:15 AM CST, 1 hour 13 minutes before
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Special weather statement, Feb 26, 1:15 AM CST, 1 hour 13 minutes before
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Local storm report, Feb 26, 2:28 AM CST, 0 minutes before
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Local storm report, Feb 26, 2:28 AM CST, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Feb 26, 12:08 AM CSTSevere Thunderstorm WarningSHVCherokee, Smith62 min
Feb 26, 12:18 AM CSTSevere Thunderstorm WarningSHVCamp, Morris, Titus62 min
Feb 26, 12:18 AM CSTSevere Thunderstorm WarningSHVUpshur, Wood62 min
Feb 26, 12:31 AM CSTSevere Thunderstorm WarningSHVGregg49 min
Feb 26, 12:39 AM CSTSevere Thunderstorm WarningSHVBowie, Cass96 min
Feb 26, 12:39 AM CSTSevere Thunderstorm WarningSHVAngelina, Nacogdoches96 min
Feb 26, 12:39 AM CSTSevere Thunderstorm WarningSHVHarrison, Rusk96 min
Feb 26, 12:39 AM CSTSevere Thunderstorm WarningSHVMarion96 min
Feb 26, 1:19 AM CSTSevere Thunderstorm WarningSHVPanola61 min
Feb 26, 1:31 AM CSTSevere Thunderstorm WarningSHVShelby59 min
Feb 26, 1:50 AM CSTSevere Thunderstorm WarningSHVSabine, San Augustine75 min
Feb 26, 1:45 AM CSTSevere Thunderstorm WarningSHVCaddo, De Soto95 min
Feb 26, 1:45 AM CSTSevere Thunderstorm WarningSHVBossier95 min
Feb 26, 2:16 AM CSTSevere Thunderstorm WarningSHVSabine64 min
Feb 26, 2:34 AM CSTSevere Thunderstorm WarningSHVNatchitoches, Red River61 min
Feb 26, 2:42 AM CSTSevere Thunderstorm WarningSHVBienville, Claiborne, Webster93 min
Feb 26, 3:28 AM CSTSevere Thunderstorm WarningSHVLincoln47 min
Feb 26, 3:33 AM CSTSevere Thunderstorm WarningSHVWinn62 min
Feb 26, 9:10 AM CSTSevere Thunderstorm WarningSHVLaSalle50 min
Feb 26, 1:26 AM CSTSevere Thunderstorm WarningSHVMiller64 min
Feb 26, 1:39 AM CSTSevere Thunderstorm WarningSHVHempstead61 min
Feb 26, 1:58 AM CSTSevere Thunderstorm WarningSHVLafayette62 min
Feb 26, 3:10 AM CSTSevere Thunderstorm WarningSHVUnion65 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1998Every 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; radar from the NEXRAD Level II archive.