Alert archive / Missouri / Tornado Warnings in 1999
Tornado Warning 54, NWS Memphis, TN
NWS Memphis, TN issued this tornado warning at Jan 21, 1999, 10:45 PM CST for Dunklin County, Pemiscot County, Missouri. It was in force for 45 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
- Jan 21, 1999, 10:45 PM CST (04:45 UTC)
- Expired
- Jan 21, 1999, 11:30 PM CST
- In force
- 45 min
- Issued by
- NWS Memphis, TN
- Area
- Whole counties
Counties Dunklin County, MO, Pemiscot County, MO
The radar
The Memphis radar (KNQA), 91 km from the middle of the area, began a volume at 04:47 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 |
|---|---|---|---|
| Jan 21, 9:00 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 4.8 hours before the alert went out and 148 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
- 725 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 1259 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 185 m²/s²
- 0-3 km storm-relative helicity
- 283 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 3.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMEM 220444 RRA TORMEM MOC069-155-220530- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MEMPHIS TN 1045 PM CST THU JAN 21 1999 THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A * TORNADO WARNING FOR... DUNKLIN COUNTY IN SOUTHEASTERN MISSOURI PEMISCOT COUNTY IN SOUTHEASTERN MISSOURI * UNTIL 1130 PM CST * AT 1041 PM CST... DOPPLER RADAR INDICATED A TORNADO IN SOUTHERN DUNKLIN COUNTY 10 MILES SOUTHWEST OF DENTON... MOVING NORTHEAST AT 50 MPH. * THE TORNADO WILL BE NEAR... DEERING BY 1055 PM CST WARDELL BY 1100 PM CST .THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A PLACE OF SAFETY... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 21, 6:45 PM CST | Tornado Warning | MEG | Dunklin | 50 min |
| Jan 21, 7:18 PM CST | Tornado Warning | MEG | Dunklin, Pemiscot | 47 min |
| Jan 21, 8:53 PM CST | Tornado Warning | MEG | Dunklin | 47 min |
| Jan 21, 9:58 PM CST | Tornado Warning | MEG | Pemiscot | 47 min |
| Jan 21, 10:08 PM CST | Tornado Warning | MEG | Dunklin | 47 min |
| Jan 22, 12:11 AM CST | Severe Thunderstorm Warning | MEG | Dunklin, Pemiscot | 49 min |
| Jan 22, 2:56 AM CST | Flash Flood Warning | MEG | Dunklin | 4 hr |
| Jan 22, 2:56 AM CST | Flash Flood Warning | MEG | Pemiscot | 4 hr |
Nearby
Tornado Warnings in Missouri, 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.