Alert archive / Florida / Red Flag Warnings in 2012
Red Flag Warning 14, NWS Miami, FL
NWS Miami, FL issued this red flag warning at Dec 21, 2012, 5:52 AM EST for Broward County, Miami-Dade County, Palm Beach County, Florida. It took effect at Dec 21, 2012, 1:00 PM EST. 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
- Dec 21, 2012, 5:52 AM EST (10:52 UTC)
- In effect from
- Dec 21, 2012, 1:00 PM EST
- Expired
- Dec 21, 2012, 5:00 PM EST
- In force
- 4 hr
- Issued by
- NWS Miami, FL
Counties Broward County, FL, Miami-Dade County, FL, Palm Beach County, FL
The radar
The Miami radar (KAMX), 59 km from the middle of the area, began a volume at 10:55 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
Miami, FL (KMFL), launched 00:00Z, 10.9 hours before the alert went out and 39 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
- 9 J/kg
- Mixed-layer CIN
- -193 J/kg
- Mixed-layer LCL
- 905 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
275 WWUS82 KMFL 211052 RFWMFL URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MIAMI FL 552 AM EST FRI DEC 21 2012 ...RED FLAG WARNING NOW IN EFFECT FOR SOUTH FLORIDA...EXCLUDING COASTAL COLLIER...MAINLAND MONROE AND EXTREME SOUTHERN MIAMI-DADE THIS AFTERNOON DUE TO RELATIVE HUMIDITIES BELOW 35 PERCENT AND WINDS OF 15 MPH OR MORE... .VERY DRY AIR ALONG WITH GUSTY NORTHWEST WINDS IN THE WAKE OF A COLD FRONT WILL OVERSPREAD THE AREA TODAY. AS A RESULT...RED FLAG CONDITIONS ARE EXPECTED THIS AFTERNOON...EXCEPT FOR COASTAL COLLIER...MAINLAND MONROE AND FAR SOUTH DADE COUNTY. DISPERSIONS WILL REACH THE GENERALLY GOOD RANGE THROUGH THE AFTERNOON PERIOD. FLZ063-066-070-212200- /O.UPG.KMFL.FW.A.0009.121221T1800Z-121221T2300Z/ /O.NEW.KMFL.FW.W.0014.121221T1800Z-121221T2200Z/ GLADES-HENDRY-INLAND COLLIER- 552 AM EST FRI DEC 21 2012 ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 5 PM EST THIS AFTERNOON FOR FIRE WEATHER ZONES 063... 066 AND 070... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 1 PM TO 5 PM EST THIS AFTERNOON. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * WIND...NORTH 15 TO 20 MPH. * HUMIDITY...30 TO 34 PERCENT. * ENERGY RELEASE COMPONENT (ERC)...21 TO 25. * 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. && $$ FLZ067-068-071>074-168-172-173-212200- /O.NEW.KMFL.FW.W.0014.121221T1800Z-121221T2200Z/ INLAND PALM BEACH-METRO PALM BEACH-INLAND BROWARD-METRO BROWARD- INLAND MIAMI DADE-METRO MIAMI DADE-COASTAL PALM BEACH- COASTAL BROWARD-COASTAL MIAMI DADE- 552 AM EST FRI DEC 21 2012 ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 5 PM EST THIS AFTERNOON FOR FIRE WEATHER ZONES 067...068...071...072...073... 074...168...172 AND 173... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 1 PM TO 5 PM EST THIS AFTERNOON. * AFFECTED AREA...FIRE WEATHER ZONES 067...068...071...072... 073...074...168...172 AND 173. * WIND...NORTH 15 TO 20 MPH. * HUMIDITY...30 TO 34 PERCENT. * ENERGY RELEASE COMPONENT (ERC)...19 TO 26. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$
1 follow-up statement
940 WWUS82 KMFL 212204 RFWMFL URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MIAMI FL 504 PM EST FRI DEC 21 2012 FLZ063-066>068-070>074-168-172-173-212315- /O.EXP.KMFL.FW.W.0014.000000T0000Z-121221T2200Z/ GLADES-HENDRY-INLAND PALM BEACH-METRO PALM BEACH-INLAND COLLIER- INLAND BROWARD-METRO BROWARD-INLAND MIAMI DADE-METRO MIAMI DADE- COASTAL PALM BEACH-COASTAL BROWARD-COASTAL MIAMI DADE- 504 PM EST FRI DEC 21 2012 ...RED FLAG WARNING HAS EXPIRED FOR FIRE WEATHER ZONES 063...066...067...068...070...071...072...073... 074...168...172 AND 173... WHILE RH VALUES ARE STILL HOVERING AROUND OR JUST BELOW THE 35 PERCENT THRESHOLD, WINDS HAVE DIMINISHED TO GENERALLY 5 TO 10 MPH. THERE IS STILL THE POSSIBILITY THAT VERY LOCALIZED LOCATIONS COULD STILL SEE BORDERLINE CONDITIONS OVER THE NEXT HOUR OR SO BEFORE SEEING RH COME UP AND WIND SPEEDS DROP BELOW CRITICAL VALUES. $$
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 21, 4:30 AM EST | Wind Chill Advisory | MFL | Broward, Collier, Glades, Hendry, Miami-Dade, Palm Beach | 28 hr |
| Dec 21, 5:26 AM EST | Rip Current Statement | MFL | Collier | 14 hr |
| Dec 21, 2:31 PM EST | Freeze Watch | MFL | Glades, Hendry | 23 hr |
| Dec 21, 2:31 PM EST | Freeze Warning | MFL | Glades, Hendry | 17 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.