Alert archive / Arkansas / Tornado Warnings in 2002
Tornado Warning 24, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Dec 18, 2002, 8:14 PM CST for Columbia County, Arkansas. It was in force for 46 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Dec 18, 2002, 8:14 PM CST (02:14 UTC)
- Expired
- Dec 18, 2002, 9:00 PM CST
- In force
- 46 min
- Issued by
- NWS Shreveport, LA
- Area
- Counties, with a storm outline in the text
County Columbia County, AR
The radar
The Shreveport radar (KSHV), 95 km from the middle of the area, began a volume at 02:17 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 |
|---|---|---|---|
| Dec 18, 9:10 PM CST | Hail 0.88 | Emerson, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Dec 18, 1:10 PM CST | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 2.2 hours before the alert went out and 87 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
- 1623 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 618 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 291 m²/s²
- 0-3 km storm-relative helicity
- 354 m²/s²
- Significant tornado parameter
- 3.8
- Supercell composite
- 12.0
The text
As transmitted, in the capitals the NWS used until 2016.
339 WFUS54 KSHV 190214 TORSHV ARC027-190300- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 813 PM CST WED DEC 18 2002 THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A * TORNADO WARNING FOR... COLUMBIA COUNTY IN SOUTHWEST ARKANSAS * UNTIL 900 PM CST * AT 813 PM CST...THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO 15 MILES SOUTH SOUTHWEST OF MAGNOLIA... MOVING NORTHEAST AT 40 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... OVER EMERSON AT 820 PM CST 7 MILES SOUTHEAST OF MAGNOLIA AT 830 PM CST TORNADOES ASSOCIATED WITH THIS TYPE OF THUNDERSTORM USUALLY OCCUR ON THE EAST...TO SOUTH...PART OF THE STORM. REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING FOR... COLUMBIA COUNTY IN SOUTHWEST ARKANSAS... UNTIL 900 PM CST. LAT...LON 3307 9347 3306 9317 3316 9298 3335 9317
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 18, 9:06 PM CST | Severe Thunderstorm Warning | SHV | Columbia | 54 min |
| Dec 18, 9:21 PM CST | Flash Flood Warning | SHV | Columbia, Lafayette | 4 hr |
| Dec 18, 11:24 PM CST | Severe Thunderstorm Warning | SHV | Union | 66 min |
| Dec 19, 12:00 AM CST | Tornado Warning | SHV | Union | 30 min |
| Dec 19, 1:16 AM CST | Flash Flood Warning | SHV | Union | 4 hr |
| Dec 19, 2:10 AM CST | Severe Thunderstorm Warning | SHV | Union | 35 min |
Nearby
Tornado Warnings in Arkansas, 2002Every tornado warning in 2002Tornadoes in 2002
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.