Alert archive / Alabama / Tornado Watches in 1999
Tornado Watch 80
The Storm Prediction Center issued this tornado watch at Mar 9, 1999, 1:00 AM CST for 8 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida; George County, Harrison County, Jackson County, Mississippi. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 9, 1999, 1:00 AM CST (07:00 UTC)
- Expired
- Mar 9, 1999, 6:00 AM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
Counties Baldwin County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Escambia County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL, George County, MS, Harrison County, MS, Jackson County, MS
The radar
The Mobile radar (KMOB), 31 km from the middle of the area, began a volume at 07:01 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.
Warnings issued inside it
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 9, 2:33 AM CST | Severe Thunderstorm Warning | MOB | Baldwin, Escambia | 57 min |
| Mar 9, 2:39 AM CST | Severe Thunderstorm Warning | MOB | Escambia | 51 min |
| Mar 9, 3:04 AM CST | Severe Thunderstorm Warning | MOB | Santa Rosa | 41 min |
| Mar 9, 3:17 AM CST | Severe Thunderstorm Warning | MOB | Mobile | 58 min |
| Mar 9, 3:27 AM CST | Severe Thunderstorm Warning | MOB | Okaloosa, Santa Rosa | 78 min |
| Mar 9, 3:49 AM CST | Severe Thunderstorm Warning | MOB | Baldwin | 71 min |
| Mar 9, 4:25 AM CST | Tornado Warning | MOB | Baldwin | 80 min |
| Mar 9, 4:44 AM CST | Severe Thunderstorm Warning | MOB | Escambia | 76 min |
| Mar 9, 4:59 AM CST | Tornado Warning | MOB | Escambia | 61 min |
| Mar 9, 5:29 AM CST | Tornado Warning | MOB | Okaloosa | 61 min |
| Mar 9, 5:49 AM CST | Tornado Warning | MOB | Baldwin | 26 min |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 7.0 hours before the alert went out and 173 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
- 230 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 476 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 224 m²/s²
- 0-3 km storm-relative helicity
- 298 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.2
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 8, 10:30 PM CST | Tornado Watch | SPC | Choctaw, Clarke, Dallas, Marengo, Washington | 6 hr |
Nearby
Tornado Watches in Alabama, 1999Tornado Watches in Florida, 1999Tornado Watches in Mississippi, 1999Every tornado watch 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.