Alert archive / Arkansas / Tornado Warnings in 2002
Tornado Warning 18, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Dec 18, 2002, 5:00 PM CST for Union County, Arkansas. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Dec 18, 2002, 5:00 PM CST (23:00 UTC)
- Expired
- Dec 18, 2002, 5:30 PM CST
- In force
- 30 min
- Issued by
- NWS Shreveport, LA
- Area
- Counties, with a storm outline in the text
County Union County, AR
The radar
The Shreveport radar (KSHV), 165 km from the middle of the area, began a volume at 23:02 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 |
|---|---|---|---|
| Dec 18, 1:10 PM CST | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 11.0 hours before the alert went out and 156 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
- 193 J/kg
- Mixed-layer CIN
- -333 J/kg
- Mixed-layer LCL
- 639 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 345 m²/s²
- 0-3 km storm-relative helicity
- 511 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
333 WFUS54 KSHV 182300 TORSHV ARC139-182330- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 459 PM CST WED DEC 18 2002 THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A * TORNADO WARNING FOR... UNION COUNTY IN SOUTH CENTRAL ARKANSAS * UNTIL 530 PM CST * AT 459 PM CST...THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO 5 MILES SOUTHWEST OF HUTTIG... OVER EXTREME SOUTHEAST UNION COUNTY...MOVING NORTHEAST AT 35 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... RURAL SOUTHEASTERN UNION COUNTY AT 510 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... UNION COUNTY IN SOUTH CENTRAL ARKANSAS... UNTIL 530 PM CST. LAT...LON 3305 9232 3304 9220 3307 9212 3323 9226
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 18, 4:42 PM CST | Severe Thunderstorm Warning | SHV | Miller | 33 min |
| Dec 18, 5:07 PM CST | Tornado Warning | SHV | Lafayette | 23 min |
| Dec 18, 5:34 PM CST | Tornado Warning | SHV | Columbia | 41 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.