Alert archive / Arkansas / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 385, NWS Shreveport, LA

September 20, 1996Little River County, Arkansas

NWS Shreveport, LA issued this severe thunderstorm warning at Sep 20, 1996, 6:27 PM CDT for Little River County, Arkansas. It was in force for 63 min. 3 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
Sep 20, 1996, 6:27 PM CDT (23:27 UTC)
Expired
Sep 20, 1996, 7:30 PM CDT
In force
63 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County Little River County, AR

The radar

The Shreveport radar (KSHV), 144 km from the middle of the area, began a volume at 23:26 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
Sep 20, 6:40 PM CDTHail 0.75Foreman, AR
Sep 20, 6:45 PM CDTThunderstorm Wind 60Foreman, AR
Sep 20, 7:15 PM CDTThunderstorm Wind 60Ogden, 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 nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 11.5 hours before the alert went out and 143 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 12:00Z on 1996-09-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 1996-09-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
773 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
35 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 Sep 20, 3:38 PM CDT, 2 hours 49 minutes earlier.

Area forecast discussion, Sep 20, 3:38 PM CDT, 2 hours 49 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
340 PM CDT FRI SEP 20 1996

VRY POTENT WX SITUATION. TORNADO WATCHES POPPING UP ACRS CNTRL TX AND
ACTIVITY WILL PROPAGATE TOWARD FA. ISLTD SVR STORM HEADED FOR MCCURTAIN
OK WHICH IS WHERE ALL THREE MODELS INDICATE MAX PVA AT 00Z SAT...THE
ONLY THING THE MODELS ARE IN EXACT AGREEMENT OVR. LIKE ETA BEST. NGM
KEEPS CHC TSTMS ACRS E TX INTO SAT MRNG. BELIEVE ACTIVITY WILL SWEEP
SOUTH BY THEN. MODELS ALSO HAVE STG INFLOW BNDRY LAYER OF SOUTH WINDS
ACRS GULF SHORELINE. EXPLOSIVE INSTABILITY ALONG WITH MODEST DYNAMICS
AND VEERING SUGGEST SUPERCELL DVLPMNT PSBL. CHC  TSTMS EARLY SAT FOR
SOUTHERN CWA THEN PLEASANT REMAINDER OF WKND.

SH>V 70/84/62/88 6200      MLU 70/86/58/87  6300

VII

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 19, 7:11 PM CDTSevere Thunderstorm WarningSHVWinn64 min
Sep 19, 7:55 PM CDTSevere Thunderstorm WarningSHVGrant65 min
Sep 19, 7:47 PM CDTSevere Thunderstorm WarningSHVAngelina28 min
Sep 20, 4:37 PM CDTSevere Thunderstorm WarningSHVRed River68 min
Sep 20, 5:15 PM CDTTornado WarningSHVRed River30 min
Sep 20, 6:04 PM CDTSevere Thunderstorm WarningSHVBowie26 min
Sep 20, 6:36 PM CDTTornado WarningSHVRed River39 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1996Every severe thunderstorm warning in 1996

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.