Alert archive / Florida / Red Flag Warnings in 2012
Red Flag Warning 3, NWS Jacksonville, FL
NWS Jacksonville, FL issued this red flag warning at Jan 13, 2012, 9:45 AM EST for Nassau County, Florida. It was in force for 7 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
- Jan 13, 2012, 9:45 AM EST (14:45 UTC)
- Expired
- Jan 13, 2012, 5:00 PM EST
- In force
- 7 hr
- Issued by
- NWS Jacksonville, FL
County Nassau County, FL
The radar
The Jacksonville radar (KJAX), 16 km from the middle of the area, began a volume at 14:49 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
Jacksonville, FL (KJAX), launched 12:00Z, 2.8 hours before the alert went out and 14 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
- 2044 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- -230 m²/s²
- 0-3 km storm-relative helicity
- -104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
926 WWUS82 KJAX 131445 RFWJAX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE JACKSONVILLE FL 945 AM EST FRI JAN 13 2012 FLZ024-025-032-033-132200- /O.NEW.KJAX.FW.W.0003.120113T1445Z-120113T2200Z/ NASSAU-DUVAL-CLAY-ST JOHNS- 945 AM EST FRI JAN 13 2012 ...RED FLAG WARNING IN EFFECT UNTIL 5 PM EST THIS AFTERNOON FOR GUSTY WINDS AND LOW HUMIDITY FOR PARTS OF NORTHEAST FLORIDA... THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 5 PM EST THIS AFTERNOON. * AFFECTED AREA...IN FLORIDA...FIRE WEATHER ZONES 024...025... 032 AND 033. * WIND...WINDS AROUND 15 MPH ARE EXPECTED. * HUMIDITY...RH VALUES AT 25 TO 35 PERCENT ARE EXPECTED. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/JAX
1 follow-up statement
621 WWUS82 KJAX 132205 RFWJAX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE JACKSONVILLE FL 505 PM EST FRI JAN 13 2012 FLZ024-025-032-033-132315- /O.EXP.KJAX.FW.W.0003.000000T0000Z-120113T2200Z/ NASSAU-DUVAL-CLAY-ST JOHNS- 505 PM EST FRI JAN 13 2012 ...RED FLAG WARNING HAS EXPIRED FOR GUSTY WINDS AND LOW HUMIDITY FOR PORTIONS OF COASTAL NORTHEAST FLORIDA... RELATIVE HUMIDITIES WILL CONTINUE TO RISE ABOVE CRITICAL LEVELS THROUGH THE EVENING HOURS. $$ HTTP://WEATHER.GOV/JAX
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 13, 3:32 AM EST | Freeze Watch | JAX | Baker, Bradford, Gilchrist, Nassau, Suwannee, Union | 11 hr |
| Jan 13, 2:35 PM EST | Freeze Warning | JAX | Baker, Bradford, Nassau, Union | 18 hr |
| Jan 13, 2:35 PM EST | Hard Freeze Warning | JAX | Gilchrist, Suwannee | 18 hr |
Nearby
Red Flag Warnings in Florida, 2012Every red flag warning in 2012
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.