Alert archive / Florida / Red Flag Warnings in 2008

Red Flag Warning 3, NWS Miami, FL

January 13, 20084 counties in Florida

NWS Miami, FL issued this red flag warning at Jan 13, 2008, 3:42 PM EST for 4 counties in Florida. It took effect at Jan 14, 2008, 4:33 AM EST. It was in force for 13 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, 2008, 3:42 PM EST (20:42 UTC)
In effect from
Jan 14, 2008, 4:33 AM EST
Expired
Jan 14, 2008, 6:00 PM EST
In force
13 hr
Issued by
NWS Miami, FL

Counties Broward County, FL, Collier County, FL, Miami-Dade County, FL, Monroe County, FL

The radar

The Miami radar (KAMX), 48 km from the middle of the area, began a volume at 20:43 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 12:00Z, 8.7 hours before the alert went out and 53 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.

Skew-T log-pSkew-T log-p diagram, Miami, FL at 12:00Z on 2008-01-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 20 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 2008-01-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
20 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
1272 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS82 KMFL 132042
RFWMFL

RED FLAG WARNING
NATIONAL WEATHER SERVICE MIAMI FL
342 PM EST SUN JAN 13 2008

...RED FLAG WARNING IN EFFECT FOR GLADES...HENDRY...AND INTERIOR
COLLIER COUNTIES ON MONDAY AFTERNOON FOR 4 OR MORE CONSECUTIVE
HOURS OF RELATIVE HUMIDITY BELOW 35 PERCENT...

FLZ063-066-070-141100-
/O.UPG.KMFL.FW.A.0002.080114T1700Z-080114T2300Z/
/O.NEW.KMFL.FW.W.0003.080114T1700Z-080114T2300Z/
GLADES-HENDRY-INLAND COLLIER-
342 PM EST SUN JAN 13 2008

...RED FLAG WARNING IN EFFECT FROM 12 PM TO 6 PM EST MONDAY...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 12 PM TO 6 PM EST MONDAY. THIS
PRODUCT IS AN UPGRADE OF THE PREVIOUSLY ISSUED FIRE WEATHER WATCH
FOR THIS AREA.

A STRONG COLD FRONT WILL PASS ACROSS SOUTH FLORIDA ON SUNDAY
NIGHT...USHERING A DRY AIRMASS ACROSS THE REGION DURING THE DAY ON
MONDAY. AFTERNOON RELATIVE HUMIDITY VALUES ARE EXPECTED TO FALL
BELOW 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS ACROSS THE REGION
ON MONDAY AFTERNOON...PROMPTING THE ISSUANCE OF A RED FLAG
WARNING.

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.

$$

70/DD
2 follow-up statements
000 
WWUS82 KMFL 140933
RFWMFL

RED FLAG WARNING
NATIONAL WEATHER SERVICE MIAMI FL
433 AM EST MON JAN 14 2008

FLZ069-142300-
/O.NEW.KMFL.FW.A.0003.080115T1600Z-080115T2300Z/
/O.EXB.KMFL.FW.W.0003.080114T1600Z-080114T2300Z/
COASTAL COLLIER-
433 AM EST MON JAN 14 2008

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST
THIS AFTERNOON FOR LONG DURATION OF CRITICAL RHS...
...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY AFTERNOON FOR POSSIBLE LONG DURATION OF CRITICAL RHS...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST
THIS AFTERNOON. A FIRE WEATHER WATCH HAS ALSO BEEN ISSUED. THIS
FIRE WEATHER WATCH IS IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY AFTERNOON. 

NORTH WINDS BEHIND A COLD FRONT TODAY WILL USHER IN MUCH DRIER AIR
TO THE REGION. AFTERNOON RELATIVE HUMIDITY VALUES ARE EXPECTED TO
FALL BELOW 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS ACROSS THE
AREA TODAY...PROMPTING THE ISSUANCE OF A RED FLAG WARNING. SIMILAR
CONDITIONS COULD OCCUR ON TUESDAY.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE
HUMIDITY WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

$$

FLZ067-071-073-075-142300-
/O.EXB.KMFL.FW.W.0003.080114T1600Z-080114T2300Z/
INLAND PALM BEACH-INLAND BROWARD-INLAND MIAMI DADE-
MAINLAND MONROE-
433 AM EST MON JAN 14 2008

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST
THIS AFTERNOON FOR LONG DURATION OF CRITICAL RHS...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST
THIS AFTERNOON. 

NORTH WINDS BEHIND A COLD FRONT TODAY WILL USHER IN MUCH DRIER AIR
TO THE REGION. AFTERNOON RELATIVE HUMIDITY VALUES ARE EXPECTED TO
FALL BELOW 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS ACROSS THE
AREA TODAY...PROMPTING THE ISSUANCE OF A RED FLAG WARNING. 

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE
HUMIDITY WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

FLZ063-066-070-142300-
/O.NEW.KMFL.FW.A.0003.080115T1600Z-080115T2300Z/
/O.EXT.KMFL.FW.W.0003.080114T1600Z-080114T2300Z/
GLADES-HENDRY-INLAND COLLIER-
433 AM EST MON JAN 14 2008

...RED FLAG WARNING NOW IN EFFECT FROM 11 AM THIS MORNING TO 6 PM
EST THIS AFTERNOON FOR LONG DURATION OF CRITICAL RHS...
...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY AFTERNOON FOR POSSIBLE LONG DURATION OF CRITICAL RHS...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST
THIS AFTERNOON. THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A FIRE
WEATHER WATCH...WHICH IS IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY AFTERNOON. 

NORTH WINDS BEHIND A COLD FRONT TODAY WILL USHER IN MUCH DRIER AIR
TO THE REGION. AFTERNOON RELATIVE HUMIDITY VALUES ARE EXPECTED TO
FALL BELOW 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS ACROSS THE
AREA TODAY...PROMPTING THE ISSUANCE OF A RED FLAG WARNING. SIMILAR
CONDITIONS COULD OCCUR ON TUESDAY.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE
HUMIDITY WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

$$

DG/BB
000 
WWUS82 KMFL 142309
RFWMFL

RED FLAG WARNING
NATIONAL WEATHER SERVICE MIAMI FL
609 PM EST MON JAN 14 2008

FLZ063-066-069-070-151000-
/O.EXP.KMFL.FW.W.0003.000000T0000Z-080114T2300Z/
/O.CON.KMFL.FW.A.0003.080115T1600Z-080115T2300Z/
GLADES-HENDRY-COASTAL COLLIER-INLAND COLLIER-
609 PM EST MON JAN 14 2008

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY AFTERNOON...
...RED FLAG WARNING HAS EXPIRED...

THE RED FLAG WARNING EXPIRED AT 6 PM. A FIRE WEATHER WATCH
REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY AFTERNOON.

RELATIVE HUMIDITIES ACROSS THIS PORTION OF THE WARNING AREA
DROPPED INTO THE 25 TO 30 PERCENT RANGE THIS AFTERNOON AS GOOD
MIXING AND A DRY AIRMASS COMBINED TO CAUSE THE VERY LOW LEVELS OF
THE ATMOSPHERE TO DRY. RELATIVE HUMIDITIES ACROSS PARTS OF THE
WARNING AREA ARE STILL CURRENTLY AROUND 30 PERCENT...AND MAY
REMAIN BELOW 35 PERCENT FOR UP TO ANOTHER HOUR. HOWEVER, AS
NOCTURNAL COOLING BEGINS TO RAPIDLY TAKE PLACE...AND DEWPOINTS
RISE A FEW DEGREES THIS EVENING...CONDITIONS SHOULD RISE BACK
ABOVE 35 PERCENT QUICKLY.

SIMILAR CONDITIONS TO TODAY MAY OCCUR ON TUESDAY ACROSS THE
WESTERN SOUTH FLORIDA PENINSULA. LOW LEVEL WINDS WILL REMAIN FROM
THE NORTH OR JUST EAST OF DUE NORTH INTO THE MID DAY HOURS WHICH
WILL KEEP THE DRY AIRMASS IN PLACE ACROSS THE REGION, HOWEVER
THERE IS SOME UNCERTAINTY AS TO HOW LONG THIS WILL LAST BEFORE
WINDS SHIFT TO A MORE MOIST NORTH NORTHEASTERLY DIRECTION. THIS
WILL ALLOW GOOD MIXING TO TAKE PLACE ONCE AGAIN ACROSS THE WESTERN
PENINSULA AND MAY ALLOW RELATIVE HUMIDITIES TO DROP BELOW 35
PERCENT FOR A PERIOD OF TIME DURING THE DAY, POSSIBLY BEGINNING AS
EARLY AS MID MORNING. THUS THE FIRE WEATHER WATCH CONTINUES FOR
TUESDAY AND MAY BE UPGRADED TO A RED FLAG WARNING OVERNIGHT IF IT
APPEARS 4 OR MORE HOURS OF LOW RELATIVE HUMIDITIES MAY BE
EXPERIENCED.

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED
FLAG WARNINGS.

$$

FLZ067-071-073-075-150015-
/O.EXP.KMFL.FW.W.0003.000000T0000Z-080114T2300Z/
INLAND PALM BEACH-INLAND BROWARD-INLAND MIAMI DADE-
MAINLAND MONROE-
609 PM EST MON JAN 14 2008

...RED FLAG WARNING HAS EXPIRED...

THE RED FLAG WARNING EXPIRED AT 6 PM.

ANY LOCATIONS THAT SAW RELATIVE HUMIDITIES DROP BELOW 35 PERCENT
THIS AFTERNOON HAVE SEEN THESE CONDITIONS END AS TEMPERATURES
QUICKLY FALL WITH THE ONSET OF NOCTURNAL COOLING AND SURFACE
DEWPOINT RECOVERY. RED FLAG CONDITIONS ARE NO LONGER EXPECTED IN
THESE AREAS AND THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

CONDITIONS SHOULD MODERATE ON TUESDAY AND NO RED FLAG CONDITIONS
ARE EXPECTED AT THIS TIME IN THESE AREAS.

$$

STRASSBERG

The office that day

Everything else NWS Miami, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 13, 12:00 AM ESTDense Fog AdvisoryMFLBroward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more9 hr
Jan 13, 7:40 AM ESTFire Weather WatchMFL8 hr
Jan 13, 2:49 PM ESTSpecial Weather StatementMFLBroward11 min
Jan 13, 2:52 PM ESTSpecial Marine WarningMFL32 min
Jan 13, 3:56 PM ESTSpecial Marine WarningMFL49 min
Jan 13, 4:10 PM ESTSpecial Marine WarningMFL65 min

Nearby

Red Flag Warnings in Florida, 2008Every red flag warning in 2008

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.