Alert archive / Florida / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 74
The Storm Prediction Center issued this severe thunderstorm watch at Mar 29, 2001, 9:15 AM EST for 31 counties in Florida. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 29, 2001, 9:15 AM EST (14:15 UTC)
- Expired
- Mar 29, 2001, 2:00 PM EST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 31 counties
Alachua County, FL, Baker County, FL, Bradford County, FL, Brevard County, FL, Citrus County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Duval County, FL, Flagler County, FL, Gilchrist County, FL, Hernando County, FL, Hillsborough County, FL, Lafayette County, FL, Lake County, FL, Levy County, FL, Marion County, FL, Nassau County, FL, Orange County, FL, Osceola County, FL, Pasco County, FL, Pinellas County, FL, Polk County, FL, Putnam County, FL, Saint Johns County, FL, Seminole County, FL, Sumter County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Volusia County, FL
The radar
The Jacksonville radar (KJAX), 106 km from the middle of the area, began a volume at 14:18 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
30 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 9:25 AM EST | Severe Thunderstorm Warning | TBW | Citrus, Hernando | 50 min |
| Mar 29, 9:25 AM EST | Severe Thunderstorm Warning | TBW | Pasco, Pinellas | 50 min |
| Mar 29, 9:30 AM EST | Severe Thunderstorm Warning | JAX | Gilchrist | 45 min |
| Mar 29, 9:51 AM EST | Severe Thunderstorm Warning | JAX | Baker, Bradford, Columbia, Union | 54 min |
| Mar 29, 9:51 AM EST | Severe Thunderstorm Warning | JAX | Alachua, Marion | 54 min |
| Mar 29, 10:00 AM EST | Tornado Warning | TBW | Hernando, Pasco | 30 min |
| Mar 29, 10:10 AM EST | Severe Thunderstorm Warning | TBW | Sumter | 35 min |
| Mar 29, 10:13 AM EST | Severe Thunderstorm Warning | TBW | Hillsborough, Pinellas | 32 min |
| Mar 29, 10:27 AM EST | Severe Thunderstorm Warning | JAX | Clay, Marion, Putnam | 63 min |
| Mar 29, 10:33 AM EST | Severe Thunderstorm Warning | TBW | Pasco | 27 min |
| Mar 29, 10:38 AM EST | Severe Thunderstorm Warning | MLB | Lake | 67 min |
| Mar 29, 10:41 AM EST | Severe Thunderstorm Warning | JAX | Duval, Nassau | 79 min |
| Mar 29, 10:44 AM EST | Tornado Warning | JAX | Clay, Putnam | 46 min |
| Mar 29, 10:45 AM EST | Severe Thunderstorm Warning | TBW | Polk | 45 min |
| Mar 29, 10:53 AM EST | Tornado Warning | JAX | Duval | 37 min |
| Mar 29, 10:59 AM EST | Severe Thunderstorm Warning | TBW | Pasco, Sumter | 31 min |
| Mar 29, 11:00 AM EST | Severe Thunderstorm Warning | JAX | Flagler, Saint Johns | 45 min |
| Mar 29, 11:01 AM EST | Severe Thunderstorm Warning | MLB | Orange | 59 min |
| Mar 29, 11:08 AM EST | Tornado Warning | JAX | Saint Johns | 52 min |
| Mar 29, 11:13 AM EST | Tornado Warning | JAX | Nassau | 47 min |
| Mar 29, 11:17 AM EST | Severe Thunderstorm Warning | MLB | Osceola | 58 min |
| Mar 29, 11:27 AM EST | Tornado Warning | JAX | Duval | 33 min |
| Mar 29, 11:30 AM EST | Severe Thunderstorm Warning | TBW | Hillsborough, Polk | 30 min |
| Mar 29, 11:43 AM EST | Severe Thunderstorm Warning | MLB | Seminole | 62 min |
| Mar 29, 11:53 AM EST | Severe Thunderstorm Warning | MLB | Orange | 67 min |
| Mar 29, 12:12 PM EST | Severe Thunderstorm Warning | MLB | Volusia | 63 min |
| Mar 29, 12:15 PM EST | Severe Thunderstorm Warning | MLB | Osceola | 45 min |
| Mar 29, 12:34 PM EST | Severe Thunderstorm Warning | MLB | Brevard | 56 min |
| Mar 29, 1:05 PM EST | Severe Thunderstorm Warning | MLB | Osceola | 55 min |
| Mar 29, 1:22 PM EST | Severe Thunderstorm Warning | MLB | Brevard | 53 min |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 2.3 hours before the alert went out and 108 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
- 267 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 717 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
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 29, 3:15 PM EST | Severe Thunderstorm Watch | SPC | Broward, Charlotte, Collier, DeSoto, Glades, Hendry and 7 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Florida, 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; radar from the NEXRAD Level II archive.