Alert archive / Arkansas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 108, NWS Shreveport, LA

May 2, 2003Hempstead County, Arkansas

NWS Shreveport, LA issued this severe thunderstorm warning at May 2, 2003, 10:45 PM CDT for Hempstead County, Arkansas. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 2, 2003, 10:45 PM CDT (03:45 UTC)
Expired: May 2, 2003, 11:45 PM CDT
In force: 60 min
Issued by: NWS Shreveport, LA
Area: Counties, with a storm outline in the text

County Hempstead County, AR

The radar

The Shreveport radar (KSHV), 144 km from the middle of the area, began a volume at 03:45 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 2, 9:50 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 3.8 hours before the alert went out and 140 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: 1869 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1427 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: -14 m²/s²
0-3 km storm-relative helicity: 30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

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 May 2, 9:55 PM CDT, 50 minutes earlier.

Area forecast discussion, May 2, 9:55 PM CDT, 50 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
955 PM CDT FRI MAY 2 2003

WILL HAVE TO UPDATE ZONES AGAIN TO ADD NEW SVR WATCH FOR NORTHERN
ZONES.

STORMS BEGINNING TO FIRE ACROSS THE NORTHERN ZONES THIS
EVENING...AS THIS AREA REMAINS IN AREA OF BEST INSTABILITY.
LATEST LAPS ANALYSIS INDICATED LI/S STILL IN THE -6 -(-8)...
WITH CAPES STILL IN EXCESS OF 3500 J/KG. WEAK FRONT...WHICH APPEARS
WASHED OUT THIS EVENING...EXTENDS ROUGHLY ALONG THE RED RIVER OF N
TX...THROUGH MCCURTAIN COUNTY OK...INTO SCNTRL AR...WITH STORMS
ROOTED NEAR THIS BOUNDARY.  FRONT IS PROGGED TO LIFT NWD LATER
TONIGHT AND DURING THE DAY SAT.

REMOVED BOTH EARLIER SVR WATCHES...AND ALSO RAISED MINS A
CATEGORY IN ALL LOCATIONS.  ALSO LEFT SVR MENTIONED UP NORTH IN
LIGHT OF CURRENT CONVECTION...AND RAISED POPS A TAD THERE AS
WELL.  LOWERED POPS TO SLIGHT CHANCES ELSEWHERE...AND KEPT
30/S OUT WEST FOR CONVECTION OVER CNTRL TX MOVING E.

UPDATE ALREADY OUT.

15

.SHV...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 3 AM CDT FOR
MCCURTAIN COUNTY OK...EXTREME NE TX...AND ALL OF SW AR.

Hazardous weather outlook, May 2, 12:00 PM CDT, 10 hours 45 minutes before

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096-
097-108>112-124>126-136>138-149>153-165>167-031100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1200 PM CDT FRI MAY 2 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST OKLAHOMA...NORTHEAST
TEXAS...SOUTHWEST ARKANSAS...NORTHWEST AND NORTH CENTRAL LOUISIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT...
A COLD FRONT WILL CONTINUE TO LINGER ACROSS THE AREA THIS
AFTERNOON...MOVING AT A SNAILS PACE TOWARD THE INTERSTATE 20
CORRIDOR ACROSS NORTH LOUISIANA AND SLIGHTLY FURTHER SOUTH ACROSS
EAST TEXAS.  THE FRONT...ALONG WITH THE COMBINED MOISTURE AND
DAYTIME HEATING WILL IGNITE SCATTERED THUNDERSTORMS THIS AFTERNOON.
SOME THUNDERSTORMS WILL MOST LIKELY BECOME SEVERE...PRODUCING LARGE
HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...
MOISTURE WILL LINGER ACROSS THE AREA THROUGH MUCH OF THE PERIOD...SO
AFTERNOON THUNDERSTORMS WILL REMAIN IN THE FORECAST.

.SPOTTER CALL TO ACTION STATEMENT...
ACTIVATION OF EMERGENCY MANAGERS...SKYWARN NETWORKS...AND STORM
SPOTTERS MAY BE NEEDED THIS AFTERNOON AND TONIGHT.

20

In the hours before

Local storm report, May 2, 7:41 PM CDT, 3 hours 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT, LA
741 PM CDT FRI MAY 2 2003

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

0730 PM    3 W BATTIEST              OK   TORNADO
05/01/03   MCCURTAIN                      F0 TORNADO OCCURRED FROM 4
                                          MILES NW OF BATTIEST TO 2
                                          MI SW OF BATTIEST. DAMAGE
                                          CONSISTED OF TORN ROOF OFF
                                          BARN...SHEET METAL
                                          DAMAGE...AND FEW TREES
                                          DOWN. REPORTED BY SPOTTER.

0815 PM    BROKEN BOW                OK   TORNADO
05/01/03   MCCURTAIN                      F2 TORNADO OCCURRED FROM 5
                                          MILES NW OF BROKEN BOW TO 8
                                          MILES SE OF BROKEN BOW.
                                          DAMAGE CONSISTED OF 2 HOMES
                                          WITH SEVERE ROOF
                                          DAMAGE...AND 30 TO 40 HOMES
                                          WITH MINOR TO MODERATE ROOF
                                          AND FRAME DAMAGE. ONE HOME
                                          DESTROYED. NUMEROUS TREES
                                          UPROOTED AND
                                          SNAPPED...ALONG WITH
                                          SEVERAL POWER POLES.
                                          REPORTED BY NWS SURVEY.

03

Special weather statement, May 2, 9:06 PM CDT, 1 hour 39 minutes before

TXZ124>126-136>138-149>153-165>167-030230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
906 PM CDT FRI MAY 2 2003

SEVERE THUNDERSTORM WATCH #213 THAT WAS IN EFFECT FOR MUCH OF EAST
TEXAS HAS BEEN CANCELLED.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 12:08 AM CDT	Severe Thunderstorm Warning	SHV	Claiborne	52 min
May 3, 12:29 AM CDT	Severe Thunderstorm Warning	SHV	Union	61 min
May 3, 12:59 AM CDT	Severe Thunderstorm Warning	SHV	Claiborne	61 min
May 3, 1:15 AM CDT	Severe Thunderstorm Warning	SHV	Lincoln	60 min
May 3, 2:19 AM CDT	Severe Thunderstorm Warning	SHV	Lincoln	41 min
May 3, 3:00 AM CDT	Severe Thunderstorm Warning	SHV	Ouachita	60 min
May 2, 8:56 PM CDT	Severe Thunderstorm Warning	SHV	Howard	49 min
May 2, 9:44 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead, Howard	61 min
May 2, 10:28 PM CDT	Severe Thunderstorm Warning	SHV	Nevada	62 min
May 2, 10:34 PM CDT	Severe Thunderstorm Warning	SHV	Sevier	56 min
May 2, 11:10 PM CDT	Severe Thunderstorm Warning	SHV	Columbia	65 min
May 2, 11:14 PM CDT	Severe Thunderstorm Warning	SHV	Howard	61 min
May 2, 11:55 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead	65 min
May 3, 12:07 AM CDT	Severe Thunderstorm Warning	SHV	Union	53 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2003 Every severe thunderstorm warning in 2003

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.