Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 197, NWS Shreveport, LA

October 13, 2001Howard County, Arkansas

NWS Shreveport, LA issued this severe thunderstorm warning at Oct 13, 2001, 12:53 AM CDT for Howard County, Arkansas. It was in force for 37 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: Oct 13, 2001, 12:53 AM CDT (05:53 UTC)
Expired: Oct 13, 2001, 1:30 AM CDT
In force: 37 min
Issued by: NWS Shreveport, LA
Area: Whole counties

County Howard County, AR

The radar

The Western Arkansas radar (KSRX), 138 km from the middle of the area, began a volume at 05:56 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
Oct 13, 1:15 AM CDT	Thunderstorm Wind 55 M	Nashville, AR	Trees were felled north of town. In addition, 2 chicken houses were damaged.

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
Oct 12, 11:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 5.9 hours before the alert went out and 180 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: 1857 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 638 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 198 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 5.5

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 Oct 12, 8:20 PM CDT, 4 hours 33 minutes earlier.

Area forecast discussion, Oct 12, 8:20 PM CDT, 4 hours 33 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
820 PM CDT FRI OCT 12 2001

UPDATED FORECAST TO EXPAND FLASH FLOOD WATCH NORTHWARD TO INCLUDE
THE WESTERN HALF OF AREA. IN ADDITION...DUE TO THE EXISTENCE OF
THREE DISCRETE AREAS OF STRONG CONVECTION...WILL ELIMINATE THE
SEPARATION OF EVENING AND LATE WORDING ON TSTM COVERAGE FOR MOST
LOCATIONS.

.SHV...FLASH FLOOD WATCH IN EFFECT TONIGHT FOR ALL OF NORTHEAST
TEXAS...AND AJCACENT PORTIONS OF SOUTHEAST OKLAHOMA AND SOUTHWEST
ARKANSAS...
ARZ050-051-059-070-OKZ077-TXZ096-097-108>112-124>126-136>138-149>153-
165>167-131000-

VII

In the hours before

Local storm report, Oct 12, 9:55 PM CDT, 2 hours 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
955 PM CDT FRI OCT 12 2001

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....PARISH/COUNTY LOCATION....

0715 PM    8 SE COLUMBIA             LA   1.75 INCH HAIL
10/12/01   CALDWELL                       GOLFBALL SIZE HAIL. FROM
                                          CORPS OF ENGINEERS

Local storm report, Oct 13, 12:15 AM CDT, 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1215 AM CDT SAT OCT 13 2001

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....PARISH/COUNTY LOCATION....

1116 PM    BOGATA                    TX   .75 INCH HAIL
10/12/01   RED RIVER                      FROM LAW ENFORCEMENT

1140 PM    5 N CLARKSVILLE           TX   .75 INCH HAIL
10/12/01   RED RIVER                      DIME SIZE HAIL AT PINE
                                          CREEK. FROM LAW
                                          ENFORCEMENT.

NNNN

Local storm report, Oct 13, 12:36 AM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1236 AM CDT SAT OCT 13 2001

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....PARISH/COUNTY LOCATION....

1201 AM    2 E LOCKESBURG            AR   WIND DAMAGE
10/13/01   SEVIER                         ONE TREE DOWN ON HWY 371.
                                          REPORTED BY LAW
                                          ENFORCEMENT.

1210 AM    HAWORTH                   OK   .75 INCH HAIL
10/13/01   MCCURTAIN                      DIME SIZE HAIL.  REPORTED
                                          BY LAW ENFORCEMENT.

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 12, 10:59 PM CDT	Severe Thunderstorm Warning	SHV	Red River	61 min
Oct 12, 11:01 PM CDT	Severe Thunderstorm Warning	SHV	Franklin, Titus	59 min
Oct 12, 11:10 PM CDT	Severe Thunderstorm Warning	SHV	Wood	65 min
Oct 12, 11:59 PM CDT	Severe Thunderstorm Warning	SHV	Bowie	61 min
Oct 13, 1:40 AM CDT	Severe Thunderstorm Warning	SHV	Smith	50 min
Oct 13, 3:16 AM CDT	Severe Thunderstorm Warning	SHV	Nacogdoches	44 min
Oct 12, 7:06 PM CDT	Severe Thunderstorm Warning	SHV	Caldwell	39 min
Oct 13, 5:30 AM CDT	Severe Thunderstorm Warning	SHV	Winn	45 min
Oct 13, 6:01 AM CDT	Severe Thunderstorm Warning	SHV	Ouachita	29 min
Oct 13, 6:03 AM CDT	Severe Thunderstorm Warning	SHV	Caldwell	27 min
Oct 13, 6:05 AM CDT	Severe Thunderstorm Warning	SHV	Grant	40 min
Oct 13, 6:13 AM CDT	Severe Thunderstorm Warning	SHV	LaSalle	62 min
Oct 12, 11:25 PM CDT	Severe Thunderstorm Warning	SHV	Little River	35 min
Oct 12, 11:54 PM CDT	Severe Thunderstorm Warning	SHV	Howard, Sevier	51 min
Oct 13, 12:24 AM CDT	Severe Thunderstorm Warning	SHV	Little River	51 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2001 Every severe thunderstorm warning in 2001

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.