Alert archive / Arkansas / Tornado Warnings in 1999
Tornado Warning 106, NWS Memphis, TN
NWS Memphis, TN issued this tornado warning at May 4, 1999, 7:24 PM CDT for Crittenden County, Arkansas. It was in force for 31 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, 7:24 PM CDT (00:24 UTC)
- Expired
- May 4, 1999, 7:55 PM CDT
- In force
- 31 min
- Issued by
- NWS Memphis, TN
- Area
- Whole counties
County Crittenden County, AR
The radar
The Memphis radar (KNQA), 42 km from the middle of the area, began a volume at 00:24 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, 5:45 PM CDT | Tornado Watch | SPC | 4 hr |
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 0.4 hours before the alert went out and 53 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
- 797 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 556 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 405 m²/s²
- 0-3 km storm-relative helicity
- 571 m²/s²
- Significant tornado parameter
- 2.4
- Supercell composite
- 13.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMEM 050023 RRA TORMEM ARC035-050055- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MEMPHIS TN 724 PM CDT TUE MAY 4 1999 THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A * TORNADO WARNING FOR... CRITTENDEN COUNTY IN NORTHEASTERN ARKANSAS * UNTIL 755 PM CDT * AT 723 PM CDT... DOPPLER RADAR INDICATED A DEVELOPING TORNADO JUST SOUTH OF JENNETTE MOVING NORTHEAST AT 55 MILES AN HOUR. * THE TORNADO WILL BE NEAR... CRAWFORDSVILLE BY 735 PM CDT TURRELL BY 745 PM CDT .A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER... SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
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.
In the hours before
Local storm report, May 4, 3:46 PM CDT, 3 hours 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
346 PM CDT TUE MAY 04 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0110 PM WALLS MS 1.75 INCH HAIL
05/04/99 DE SOTOThe office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 7:05 PM CDT | Severe Thunderstorm Warning | MEG | Lawrence | 35 min |
| May 5, 2:14 PM CDT | Severe Thunderstorm Warning | MEG | Cross | 31 min |
| May 5, 2:56 PM CDT | Tornado Warning | MEG | Craighead, Poinsett | 49 min |
| May 5, 3:17 PM CDT | Severe Thunderstorm Warning | MEG | Mississippi | 48 min |
| May 5, 3:37 PM CDT | Severe Thunderstorm Warning | MEG | Crittenden | 48 min |
| May 5, 3:37 PM CDT | Severe Thunderstorm Warning | MEG | St. Francis | 48 min |
| May 5, 5:09 PM CDT | Severe Thunderstorm Warning | MEG | Phillips | 51 min |
| May 5, 5:11 PM CDT | Severe Thunderstorm Warning | MEG | Lee | 49 min |
| May 5, 6:09 PM CDT | Tornado Warning | MEG | Crittenden | 31 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.