Alert archive / Arkansas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 88, NWS Shreveport, LA

April 4, 1997Union County, Arkansas

NWS Shreveport, LA issued this severe thunderstorm warning at Apr 4, 1997, 5:22 PM CST for Union County, Arkansas. It was in force for 68 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: Apr 4, 1997, 5:22 PM CST (23:22 UTC)
Expired: Apr 4, 1997, 6:30 PM CST
In force: 68 min
Issued by: NWS Shreveport, LA
Area: Whole counties

County Union County, AR

The radar

The Shreveport radar (KSHV), 141 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

Time	Report	Where	Remark
Apr 4, 5:45 PM CST	Thunderstorm Wind 70	El Dorado, AR	A woman was injured when trees fell across her mobile home in the Newell Community. She was trapped for several hours until rescued but suffered only minor injuries.
Apr 4, 6:12 PM CST	Thunderstorm Wind 70	El Dorado, AR	High winds downed trees west of town including one that fell across an automobile. A person was trapped inside the car and sustained minor injuries.

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.

Issued	Product	Office	Lasted
Apr 4, 4:00 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 11.4 hours before the alert went out and 132 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 533 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 237 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 Apr 4, 2:30 PM CST, 2 hours 52 minutes earlier.

Area forecast discussion, Apr 4, 2:30 PM CST, 2 hours 52 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
230 PM CST FRI APR 4 1997

NOT MUCH TIME THIS AFTERNOON WITH ACTIVITY STARTING TO POP ACROSS W
HALF OF CWA. COORD WITH NEW AND THE POSSIBILITY OF PRE-FRONTAL
HEAVY RAINFALL TONIGHT AND HEAVY RAINFALL IN ASSOCIATION WITH SQUALL
LINE DURING THE EARLY MORNING HOURS SAT...WILL ISSUE FLASH FLOOD WATCH
FOR NW HALF OF LA WEST OF A LINE FROM JUNCTION CITY TO CYPRESS LA.
HAVE DECIDED NOT TO INCLUDE NORTHEAST LOUISIANA IN FFA DUE TO EXPECTED
ACCELERATION OF THE LINE AS IT MOVES FURTHER EAST. WOULD LIKE TO SEE
AT LEAST CHANCE POPS ACROSS NW HALF OF LA FOR SECOND PERIOD AND
WORD IT MAINLY TOWARDS MORNING BECAUSE OF UNCERTAINITY OF SQUALL
LINE PLACEMENT. MOS NUMBERS LOOK GOOD...MY NUMBERS TO FOLLOW...

SHV 64/76/53/72  +510     MLU 65/73/52/72  +630

13

In the hours before

Local storm report, Apr 4, 4:55 PM CST, 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OFFICE SHREVEPORT LA
500 PM CST FRI APR 4 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

345 PM     6 N CARTHAGE              TX   WIND DAMAGE
04/04/97   PANOLA                         TREES DOWN ACROSS HWY 59.

420 PM     SHREVEPORT                LA   WIND DAMAGE
04/04/97   CADDO                          TREES DOWN ACROSS E70TH AND
                                          GILBERT.

410 PM     2 SW SPRING RIDGE         LA   WIND DAMAGE
04/04/97   CADDO                          NUMEROUS REPORTS OF TREES AND
                                          POWERLINES DOWN ALONG WITH
B                                          DAMAGE TO TWO MOBILE HOMES
                                          ACROSS KEATCHIE-MARSHALL RD.
13

Local storm report, Apr 4, 5:00 PM CST, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OFFICE SHREVEPORT LA
500 PM CST FRI APR 4 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

345 PM     6 N CARTHAGE              TX   WIND DAMAGE
04/04/97   PANOLA                         TREES DOWN ACROSS HWY 59.

420 PM     SHREVEPORT                LA   WIND DAMAGE
04/04/97   CADDO                          TREES DOWN ACROSS E70TH AND
                                          GILBERT.

410 PM     2 SW SPRING RIDGE         LA   WIND DAMAGE
04/04/97   CADDO                          NUMEROUS REPORTS OF TREES AND
                                          POWERLINES DOWN ALONG WITH
                                          DAMAGE TO TWO MOBILE HOMES
                                          ACROSS KEATCHIE-MARSHALL RD.
13

Local storm report, Apr 4, 5:04 PM CST, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OFFICE SHREVEPORT LA
505 PM CST FRI APR 4 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

320 PM     JONESBORO                 LA   FUNNEL CLOUD
04/04/97   JACKSON                        REPORTED ACROSS THE JONESBORO/
                                          HODGE AREA OVER THE STONE
                                          CONTAINER PLANT.

445 PM     SHREVEPORT                LA   FLOODING
04/04/97   CADDO                          NUMEROUS REPORTS OF FLOODING
                                          IN THE CITY. SOME STREETS
                                          CLOSED DvUE TO HIGH WATER.
                                          CARS STALLED.

13

Local storm report, Apr 4, 5:05 PM CST, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OFFICE SHREVEPORT LA
505 PM CST FRI APR 4 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

320 PM     JONESBORO                 LA   FUNNEL CLOUD
04/04/97   JACKSON                        REPORTED ACROSS THE JONESBORO/
                                          HODGE AREA OVER THE STONE
                                          CONTAINER PLANT.

445 PM     SHREVEPORT                LA   FLOODING
04/04/97   CADDO                          NUMEROUS REPORTS OF FLOODING
                                          IN THE CITY. SOME STREETS
                                          CLOSED DUE TO HIGH WATER.
                                          CARS STALLED.

13

Local storm report, Apr 4, 5:07 PM CST, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OFFICE SHREVEPORT LA
510 PM CST FRI APR 4 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

435 PM     BOSSIER CITY              LA   FLOODING
04/04/97   BOSSIER                        NUMEROUS REPORTS OF FLOODING
                                          ACROSS THE CITY WITH SOME
                                          ROADWAYS CLOSED DUE TO HIGH
                                          WATER.

450 PM     SHREVEPORT                LA   HEAVY RAINFALL
04/04/97   CADDO                          3.25 INCHES OF RAIN RECORDED
                                          IN AN HOUR AND A HALF BY
                                          COOP OBSERVER.

13

Local storm report, Apr 4, 5:10 PM CST, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OFFICE SHREVEPORT LA
510 PM CST FRI APR 4 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

435 PM     BOSSIER CITY              LA   FLOODING
04/04/97   BOSSIER                        NUMEROUS REPORTS OF FLOODING
                                          ACROSS THE CITY WITH SOME
                                          ROADWAYS CLOSED DUE TO HIGH
                                          WATER.

450 PM     SHREVEPORT                LA   HEAVY RAINFALL
04/04/97   CADDO                          3.25 INCHES OF RAIN RECORDED
                                          IN AN HOUR AND A HALF BY
                                          COOP OBSERVER.

13

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 2:25 PM CST	Severe Thunderstorm Warning	SHV	Sabine, San Augustine	35 min
Apr 4, 2:38 PM CST	Severe Thunderstorm Warning	SHV	Nacogdoches	52 min
Apr 4, 2:55 PM CST	Severe Thunderstorm Warning	SHV	Shelby	50 min
Apr 4, 3:23 PM CST	Tornado Warning	SHV	Shelby	37 min
Apr 4, 3:36 PM CST	Tornado Warning	SHV	Panola	39 min
Apr 4, 3:55 PM CST	Severe Thunderstorm Warning	SHV	De Soto	50 min
Apr 4, 4:11 PM CST	Severe Thunderstorm Warning	SHV	Bossier, Caddo	49 min
Apr 4, 4:23 PM CST	Flash Flood Warning	SHV	Bossier, Caddo	3 hr
Apr 4, 4:48 PM CST	Severe Thunderstorm Warning	SHV	Webster	27 min
Apr 4, 4:52 PM CST	Tornado Warning	SHV	Webster	38 min
Apr 4, 5:10 PM CST	Severe Thunderstorm Warning	SHV	Claiborne	50 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1997 Every severe thunderstorm warning in 1997

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.