Alert archive / Mississippi / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 290, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Apr 14, 1999, 7:09 PM CDT for Holmes County, Leflore County, Mississippi. It was in force for 46 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 14, 1999, 7:09 PM CDT (00:09 UTC)
- Expired
- Apr 14, 1999, 7:55 PM CDT
- In force
- 46 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
Counties Holmes County, MS, Leflore County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 14, 7:25 PM CDT | Hail 1.75 | Tchula, MS | Golfball size hail produced minor damage to homes and automobiles. |
| Apr 14, 7:40 PM CDT | Tornado F0 | Cruger, MS | Several trees were uprooted or snapped off by this weak tornado. |
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 |
|---|---|---|---|
| Apr 14, 6:30 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 0.2 hours before the alert went out and 114 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
- 219 J/kg
- Mixed-layer CIN
- -112 J/kg
- Mixed-layer LCL
- 1104 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 219 m²/s²
- 0-3 km storm-relative helicity
- 361 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.3
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 7:21 PM CDT | Tornado Warning | JAN | Holmes | 34 min |
| Apr 14, 7:24 PM CDT | Severe Thunderstorm Warning | JAN | Claiborne | 36 min |
| Apr 14, 7:32 PM CDT | Tornado Warning | JAN | Carroll | 48 min |
| Apr 14, 7:49 PM CDT | Severe Thunderstorm Warning | JAN | Hinds | 31 min |
| Apr 14, 7:57 PM CDT | Tornado Warning | JAN | Holmes | 33 min |
| Apr 14, 8:12 PM CDT | Severe Thunderstorm Warning | JAN | Montgomery | 33 min |
| Apr 14, 8:31 PM CDT | Severe Thunderstorm Warning | JAN | Webster | 49 min |
| Apr 14, 8:35 PM CDT | Severe Thunderstorm Warning | JAN | Issaquena | 35 min |
| Apr 14, 8:38 PM CDT | Tornado Warning | JAN | Montgomery | 32 min |
| Apr 14, 9:04 PM CDT | Severe Thunderstorm Warning | JAN | Sharkey, Washington | 36 min |
| Apr 14, 9:14 PM CDT | Severe Thunderstorm Warning | JAN | Humphreys, Sunflower | 31 min |
| Apr 14, 9:21 PM CDT | Severe Thunderstorm Warning | JAN | Clay | 49 min |
| Apr 14, 9:27 PM CDT | Severe Thunderstorm Warning | JAN | Issaquena | 33 min |
| Apr 14, 9:51 PM CDT | Severe Thunderstorm Warning | JAN | Rankin, Simpson | 49 min |
| Apr 14, 9:58 PM CDT | Severe Thunderstorm Warning | JAN | Jefferson Davis, Marion | 47 min |
| Apr 14, 10:17 PM CDT | Severe Thunderstorm Warning | JAN | Scott, Smith | 48 min |
| Apr 14, 10:19 PM CDT | Severe Thunderstorm Warning | JAN | Covington, Smith | 51 min |
| Apr 14, 10:43 PM CDT | Severe Thunderstorm Warning | JAN | Jasper | 32 min |
| Apr 14, 10:45 PM CDT | Tornado Warning | JAN | Covington | 35 min |
| Apr 14, 10:53 PM CDT | Tornado Warning | JAN | Jones | 32 min |
| Apr 14, 10:59 PM CDT | Tornado Warning | JAN | Jasper | 51 min |
| Apr 14, 11:26 PM CDT | Severe Thunderstorm Warning | JAN | Forrest, Jones | 34 min |
| Apr 14, 11:35 PM CDT | Tornado Warning | JAN | Jones | 50 min |
| Apr 14, 11:40 PM CDT | Severe Thunderstorm Warning | JAN | Clarke, Lauderdale | 50 min |
| Apr 14, 11:41 PM CDT | Severe Thunderstorm Warning | JAN | Lamar | 34 min |
| Apr 14, 11:53 PM CDT | Tornado Warning | JAN | Forrest | 52 min |
| Apr 15, 12:23 AM CDT | Tornado Warning | JAN | Jones | 32 min |
| Apr 15, 12:31 AM CDT | Severe Thunderstorm Warning | JAN | Kemper, Neshoba | 49 min |
| Apr 15, 12:35 AM CDT | Severe Thunderstorm Warning | JAN | Clarke | 35 min |
| Apr 14, 7:15 PM CDT | Severe Thunderstorm Warning | JAN | Morehouse | 35 min |
| Apr 14, 8:05 PM CDT | Severe Thunderstorm Warning | JAN | East Carroll, West Carroll | 35 min |
| Apr 14, 7:19 PM CDT | Severe Thunderstorm Warning | JAN | Ashley | 36 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 1999Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.