Alert archive / Florida / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 69
The Storm Prediction Center issued this severe thunderstorm watch at Mar 15, 2001, 1:00 PM EST for 15 counties in Florida; Camden County, Charlton County, Glynn County, Georgia. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 15, 2001, 1:00 PM EST (18:00 UTC)
- Expired
- Mar 15, 2001, 6:00 PM EST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
Counties Alachua County, FL, Baker County, FL, Bradford County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Duval County, FL, Gilchrist County, FL, Hamilton County, FL, Lafayette County, FL, Levy County, FL, Nassau County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Camden County, GA, Charlton County, GA, Glynn County, GA
Warnings issued inside it
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 15, 2:28 PM EST | Severe Thunderstorm Warning | JAX | Camden, Glynn | 47 min |
| Mar 15, 2:45 PM EST | Severe Thunderstorm Warning | TAE | Dixie, Lafayette, Taylor | 45 min |
| Mar 15, 2:46 PM EST | Severe Thunderstorm Warning | JAX | Suwannee | 44 min |
| Mar 15, 3:45 PM EST | Severe Thunderstorm Warning | JAX | Charlton, Clinch, Ware | 45 min |
| Mar 15, 4:15 PM EST | Severe Thunderstorm Warning | JAX | Duval | 30 min |
| Mar 15, 4:21 PM EST | Severe Thunderstorm Warning | JAX | Gilchrist | 39 min |
| Mar 15, 4:38 PM EST | Severe Thunderstorm Warning | JAX | Columbia | 37 min |
| Mar 15, 4:48 PM EST | Severe Thunderstorm Warning | JAX | Alachua, Bradford, Union | 42 min |
| Mar 15, 4:55 PM EST | Severe Thunderstorm Warning | JAX | Baker | 35 min |
| Mar 15, 5:25 PM EST | Tornado Warning | JAX | Nassau | 50 min |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 6.0 hours before the alert went out and 97 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
- 477 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 570 m above ground
- 0-6 km bulk shear
- 77 kt
- 0-1 km storm-relative helicity
- 362 m²/s²
- 0-3 km storm-relative helicity
- 419 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 7.6
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 14, 10:30 PM EST | Tornado Watch | SPC | Escambia, Okaloosa, Santa Rosa, Walton | 6 hr |
| Mar 15, 2:30 AM EST | Tornado Watch | SPC | Bay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 10 more | 6 hr |
| Mar 15, 7:00 AM EST | Tornado Watch | SPC | Columbia, Dixie, Franklin, Gadsden, Gulf, Hamilton and 8 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Florida, 2001Severe Thunderstorm Watches in Georgia, 2001Every severe thunderstorm watch in 2001
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.