Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 399, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Jul 4, 1997, 9:16 PM CDT for Sunflower County, Mississippi. It was in force for 29 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
- Jul 4, 1997, 9:16 PM CDT (02:16 UTC)
- Expired
- Jul 4, 1997, 9:45 PM CDT
- In force
- 29 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Sunflower County, MS
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 4, 6:00 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 2.3 hours before the alert went out and 150 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
- 2606 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 1508 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- -23 m²/s²
- Significant tornado parameter
- -0.2
- Supercell composite
- -2.1
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jul 4, 7:06 PM CDT, 2 hours 10 minutes before
MSZ037-032-039-033-029-038-050115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 706 PM CDT FRI JUL 4 1997 ...SEVERE THUNDERSTORM WATCH NUMBER 565 IN EFFECT UNTIL 8 PM CDT FOR NORTHEASTERN MISSISSIPPI HAS BEEN CANCELLED... DURING THE PAST COUPLE OF HOURS...THUNDERSTORM ACTIVITY OVER NORTHEAST MISSISSIPPI HAS BEEN ON THE DECREASE. THEREFORE...THE SEVERE THUNDERSTO WATCH FOR WEBSTER...CHOCTAW...OKTIBBEHA...ATTALA...WINSTON...AND NOXUBEE COUNTIES HAS BEEN CANCELLED.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 8:33 PM CDT | Severe Thunderstorm Warning | JAN | Washington | 42 min |
| Jul 4, 9:05 PM CDT | Severe Thunderstorm Warning | JAN | Issaquena, Sharkey | 40 min |
| Jul 4, 9:05 PM CDT | Severe Thunderstorm Warning | JAN | Humphreys | 40 min |
| Jul 4, 9:55 PM CDT | Severe Thunderstorm Warning | JAN | Warren, Yazoo | 35 min |
| Jul 4, 10:04 PM CDT | Severe Thunderstorm Warning | JAN | Hinds, Madison | 41 min |
| Jul 4, 11:17 PM CDT | Severe Thunderstorm Warning | JAN | Attala | 28 min |
| Jul 4, 11:33 PM CDT | Severe Thunderstorm Warning | JAN | Leake, Neshoba | 42 min |
| Jul 4, 11:54 PM CDT | Severe Thunderstorm Warning | JAN | Winston | 51 min |
| Jul 5, 12:09 AM CDT | Severe Thunderstorm Warning | JAN | Noxubee | 51 min |
| Jul 5, 4:27 PM CDT | Severe Thunderstorm Warning | JAN | Lamar | 33 min |
| Jul 4, 8:36 PM CDT | Severe Thunderstorm Warning | JAN | Morehouse, West Carroll | 54 min |
| Jul 4, 8:54 PM CDT | Severe Thunderstorm Warning | JAN | East Carroll | 36 min |
| Jul 4, 7:19 PM CDT | Tornado Warning | JAN | Ashley | 41 min |
| Jul 4, 7:22 PM CDT | Tornado Warning | JAN | Ashley | 38 min |
| Jul 4, 8:00 PM CDT | Tornado Warning | JAN | Ashley, Chicot | 45 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 1997Every severe thunderstorm warning in 1997
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.