Alert archive / Arkansas / Tornado Warnings in 1999
Tornado Warning 69, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at May 4, 1999, 6:56 PM CDT for Columbia County, Arkansas. It was in force for 49 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 4, 1999, 6:56 PM CDT (23:56 UTC)
- Expired
- May 4, 1999, 7:45 PM CDT
- In force
- 49 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County Columbia County, AR
The radar
The Shreveport radar (KSHV), 102 km from the middle of the area, began a volume at 23:57 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 4, 3:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 11.9 hours before the alert went out and 95 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.
- Mixed-layer CAPE
- 1116 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 498 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 275 m²/s²
- 0-3 km storm-relative helicity
- 392 m²/s²
- Significant tornado parameter
- 2.0
- Supercell composite
- 12.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSHV 042355 TORSHV ARC027-050045- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 656 PM CDT TUE MAY 4 1999 THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A * TORNADO WARNING FOR... COLUMBIA COUNTY IN SOUTHWESTERN ARKANSAS * UNTIL 745 PM CDT * AT 655 PM CDT... THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO 2 NORTHEAST OF MAGNOLIA. THE THUNDERSTORM CONTAINING THIS TORNADO WAS MOVING NORTHEAST AT 20 MPH. TORANDO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. * THE TORNADO IS EXPECTED TO BE NEAR...
What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at May 4, 3:06 PM CDT, 3 hours 50 minutes earlier.
Area forecast discussion, May 4, 3:06 PM CDT, 3 hours 50 minutes before
FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 300 AM CDT TUE MAY 4 1999 CONVECTION CURRENTLY MOVING ACROSS CWA WELL AHEAD OF DRYLINE. MOST STORMS SHOWING SIGNS OF ROTATION WITH A COUPLE OF TOUCHDOWNS ALREADY REPORTED. FEEL THIS IS ONLY FIRST SURGE...WITH ANOTHER BEHIND THIS WHICH WILL KEEP SCATTERED TSTMS GOING INTO THE EARLY EVENING HOURS ACROSS TEXAS AND OKLAHOMA COUNTIES...WITH MODELS A LITTLE A LITTLE FAST. STORMS MAY CONTINUE UNTIL AFTER MIDNIGHT EASTERN MOST LOUISIANA PARISHES. FEEL DRY SURGE BEHIND ALL THIS ACTIVITY WILL END PRECIP CHANCES..SO WORK ZONES WILL HAVE DRY FORECAST WEDNESDAY THROUGH THURSDAY. MOS TEMPS LOOK OK..BUT LOWS LOOK TOO COOL TONIGHT WITH SOUTH WIND CONTAINING THROUGH MOST OF PERIOD. SHV 64/82/54/77 6110 MLU 67/86/59/80 7110 TXK 62/80/51/74/ 6111 TYR 61/80/51/75 5110 LFK 65/85/54/79 6110 14
In the hours before
Local storm report, May 4, 3:46 PM CDT, 3 hours 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
346 PM CDT TUE MAY 04 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....PARISH/COUNTY LOCATION....
0215 PM 5 SE TALCO TX TORNADO
05/04/99 TITUS REPORTED BY LAW
ENFORCEMENT
0215 PM 6 SE TALCO TX TORNADO
05/04/99 TITUS *** 1 DEAD ***
TORNADO NEAR BRIDGE CHAPEL
CAUSED DAMAGE. REPORTED BY
S.O.
0300 PM DE KALB TX TORNADO
05/04/99 BOWIE DAMAGE AND INJURIES AND A
CONFIRMED SIGHTING OF
TORNADO REPORTED BY STATE
TROOPER JUST NORTH OF
DE KALB.
03Local storm report, May 4, 6:30 PM CDT, 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
630 PM CDT TUE MAY 04 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....PARISH/COUNTY LOCATION....
0420 PM NASHVILLE AR .75 INCH HAIL
05/04/99 HOWARD REPORTED BY BROADCAST
MEDIA.
0420 PM 2 N FOUKE AR .75 INCH HAIL
05/04/99 MILLER REPORTED BY SPOTTER.
0420 PM HALLSVILLE TX 60 MPH TSTM GUST
05/04/99 HARRISON TREES DOWN ACROSS WEST
SIDE OF COUNTY. REPORTED
BY LAW ENFORCEMENT. NWS
TORNADO SURVEY PENDING.
0420 PM MARSHALL TX 80 MPH TSTM GUST
05/04/99 HARRISON 1 HOUSE WITH ROOF BLOWN
OFF ON WEST SIDE OF TOWN.
REPORTED BY LAW
ENFORCEMENT. NWS TORNADO
SURVEY PENDING.
0435 PMN 10 E TEXARKANA AR .75 INCH HAIL
05/04/99 MILLER REPORTED BY GENERAL
PUBLIC.
20The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 3:14 PM CDT | Tornado Warning | SHV | Little River | 46 min |
| May 4, 3:47 PM CDT | Tornado Warning | SHV | Sevier | 63 min |
| May 4, 3:59 PM CDT | Tornado Warning | SHV | Howard | 61 min |
| May 4, 4:03 PM CDT | Tornado Warning | SHV | Miller | 47 min |
| May 4, 4:37 PM CDT | Severe Thunderstorm Warning | SHV | Hempstead, Lafayette | 63 min |
| May 4, 5:00 PM CDT | Tornado Warning | SHV | Hempstead, Nevada | 50 min |
| May 4, 5:43 PM CDT | Tornado Warning | SHV | Lafayette | 47 min |
| May 4, 6:03 PM CDT | Tornado Warning | SHV | Columbia | 47 min |
Nearby
Tornado Warnings in Arkansas, 1999Every tornado warning in 1999Tornadoes in 1999
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.