Alert archive / Florida / Red Flag Warnings in 2010
Red Flag Warning 56, NWS Jacksonville, FL
NWS Jacksonville, FL issued this red flag warning at Apr 27, 2010, 2:06 PM EDT for 7 counties in Florida. It took effect at Apr 28, 2010, 2:00 PM EDT. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 27, 2010, 2:06 PM EDT (18:06 UTC)
- In effect from
- Apr 28, 2010, 2:00 PM EDT
- Expired
- Apr 28, 2010, 6:00 PM EDT
- In force
- 4 hr
- Issued by
- NWS Jacksonville, FL
Counties Baker County, FL, Bradford County, FL, Flagler County, FL, Gilchrist County, FL, Nassau County, FL, Suwannee County, FL, Union County, FL
The radar
The Jacksonville radar (KJAX), 71 km from the middle of the area, began a volume at 18:08 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.
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.1 hours before the alert went out and 202 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1266 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- 7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 4:45 AM EDT | Lake Wind Advisory | JAX | Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more | 14 hr |
| Apr 27, 5:17 AM EDT | Small Craft Advisory | JAX | 27 hr | |
| Apr 27, 6:38 PM EDT | Special Weather Statement | JAX | Baker | 52 min |
| Apr 27, 6:56 PM EDT | Fire Weather Watch | JAX | Baker, Bradford, Gilchrist, Nassau, Suwannee, Union | 33 hr |
| Apr 27, 7:37 PM EDT | Special Weather Statement | JAX | Nassau | 23 min |
| Apr 27, 7:44 PM EDT | Special Marine Warning | JAX | 91 min | |
| Apr 27, 7:59 PM EDT | Special Weather Statement | JAX | Duval | 31 min |
Nearby
Red Flag Warnings in Florida, 2010Every red flag warning in 2010
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.