Alert archive / Florida / Red Flag Warnings in 2017

Red Flag Warning 7, NWS Melbourne, FL

April 7, 20176 counties in Florida

NWS Melbourne, FL issued this red flag warning at Apr 7, 2017, 8:11 PM EDT for 6 counties in Florida. It took effect at Apr 8, 2017, 10:00 AM EDT. It was in force for 10 hr. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 7, 2017, 8:11 PM EDT (00:11 UTC)
In effect from
Apr 8, 2017, 10:00 AM EDT
Expired
Apr 8, 2017, 8:00 PM EDT
In force
10 hr
Issued by
NWS Melbourne, FL

Counties Lake County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL, Seminole County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 67 km from the middle of the area, began a volume at 00:12 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.

What was reported inside it

TimeReportWhereRemark
Apr 8, 4:00 PM EDTWILDFIRE4 Nnw Bithlo, FLFLORIDA FOREST SERVICE REPORTS A ROUGHLY 180 ACRE BRUSHFIRE IN THE LIVE OAK RESERVE AREA, JUST OFF COUNTY ROAD 419 NEAR CHULUOTA IN SEMINOLE COUNTY. FIRE RESCUE REPORTS 100 PEOPLE WERE EVACUATED. SEVERAL CAMPSITES AND BUILDINGS WERE DESTROYED IN CAMP MAH-KAH-W

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 00:00Z, 0.2 hours before the alert went out and 73 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, Cape Canaveral, FL at 00:00Z on 2017-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Cape Canaveral, FL at 00:00Z on 2017-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2601 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
173 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

443 
WWUS82 KMLB 080011
RFWMLB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Melbourne FL
811 PM EDT Fri Apr 7 2017

...Very drier air will keep the fire danger high across east 
central Florida this weekend...

FLZ041-044>046-053-058-144-090000-
/O.EXP.KMLB.FW.W.0006.000000T0000Z-170408T0000Z/
/O.UPG.KMLB.FW.A.0002.170408T1500Z-170409T0000Z/
/O.NEW.KMLB.FW.W.0007.170408T1400Z-170409T0000Z/
Inland Volusia County-Northern Lake County-Orange-Seminole-
Osceola-Okeechobee-Southern Lake County-
811 PM EDT Fri Apr 7 2017

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM EDT SATURDAY FOR
LOW RELATIVE HUMIDITY AND HIGH ERC VALUES FOR ALL OF EAST CENTRAL
FLORIDA...

The National Weather Service in Melbourne has issued a Red Flag 
Warning, which is in effect from 10 AM to 8 PM EDT Saturday. 

* AFFECTED AREA...ALL OF EAST CENTRAL FLORIDA.

* WIND...NORTHWEST TO NORTH AROUND 10 MPH VEERING TO THE NORTHEAST
  VERY LATE IN THE DAY OR EVENING.
 
* HUMIDITY...20 TO 25 PERCENT FOR SEVERAL HOURS.

* 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 can
contribute to extreme fire behavior.

&&

$$

FLZ047-054-059-064-141-147-090000-
/O.EXP.KMLB.FW.W.0006.000000T0000Z-170408T0000Z/
/O.NEW.KMLB.FW.W.0007.170408T1400Z-170409T0000Z/
Southern Brevard County-Indian River-St. Lucie-Martin-
Coastal Volusia County-Northern Brevard County-
811 PM EDT Fri Apr 7 2017

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM EDT SATURDAY FOR
LOW RELATIVE HUMIDITY AND HIGH ERC VALUES FOR ALL OF EAST CENTRAL
FLORIDA...

The National Weather Service in Melbourne has issued a Red Flag 
Warning, which is in effect from 10 AM to 8 PM EDT Saturday. 

* AFFECTED AREA...ALL OF EAST CENTRAL FLORIDA.

* WIND...NORTHWEST TO NORTH 10 TO 15 MPH VEERING SLOWLY TO THE
  NORTHEAST IN THE AFTERNOON.
 
* HUMIDITY...25 TO 35 PERCENT FOR SEVERAL HOURS.

* 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 can
contribute to extreme fire behavior.

&&

$$

SEDLOCK
2 follow-up statements
946 
WWUS82 KMLB 081931
RFWMLB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Melbourne FL
331 PM EDT Sat Apr 8 2017

...Very drier air will keep the fire danger high across east
central Florida this weekend...

FLZ044>046-053-144-092300-
/O.NEW.KMLB.FW.A.0003.170409T1700Z-170409T2300Z/
/O.CON.KMLB.FW.W.0007.000000T0000Z-170409T0000Z/
Northern Lake County-Orange-Seminole-Osceola-Southern Lake County-
331 PM EDT Sat Apr 8 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM...

...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH 
SUNDAY EVENING FOR LONG DURATION OF LOW RELATIVE HUMIDITY PLUS 
HIGH ERC VALUES...

The National Weather Service in Melbourne has issued a Fire
Weather Watch, which is in effect from Sunday afternoon through
Sunday evening. 

* AFFECTED AREA...All of east central Florida through sunset 
  today. Interior portions of east central Florida Sunday 
  afternoon.

* HUMIDITY...Around 20 to 25 percent through sunset today. 25 to
  34 percent for 4 to 6 hours on Sunday.

* IMPACTS...Any new or existing fires will spread rapidly. 
  Outdoor burning should not be conducted.

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 can
contribute to extreme fire behavior.

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$

FLZ041-047-054-058-059-064-141-147-090000-
/O.CON.KMLB.FW.W.0007.000000T0000Z-170409T0000Z/
Inland Volusia County-Southern Brevard County-Indian River-
Okeechobee-St. Lucie-Martin-Coastal Volusia County-
Northern Brevard County-
331 PM EDT Sat Apr 8 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM...

* AFFECTED AREA...All of east central Florida through sunset.

* HUMIDITY...25 TO 34 percent through sunset.

* IMPACTS...Any new or existing fires will spread rapidly. 
  Outdoor burning should not be conducted.

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 can
contribute to extreme fire behavior.

&&

$$
854 
WWUS82 KMLB 090027
RFWMLB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Melbourne FL
827 PM EDT Sat Apr 8 2017

...Very drier air will keep the fire danger high across east
central Florida on Sunday...

FLZ044>046-053-144-091000-
/O.EXP.KMLB.FW.W.0007.000000T0000Z-170409T0000Z/
/O.CON.KMLB.FW.A.0003.170409T1700Z-170409T2300Z/
Northern Lake County-Orange-Seminole-Osceola-Southern Lake County-
827 PM EDT Sat Apr 8 2017

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH SUNDAY EVENING FOR LONG DURATION OF LOW RELATIVE HUMIDITY
PLUS HIGH ERC VALUES...

* AFFECTED AREA...Interior portions of east central Florida 
  Sunday afternoon. 

* HUMIDITY...25 to 34 percent for 4 to 6 hours on Sunday. 

* IMPACTS...Any new or existing fires will spread rapidly. Outdoor
  burning should not be conducted. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$

FLZ041-047-054-058-059-064-141-147-090130-
/O.EXP.KMLB.FW.W.0007.000000T0000Z-170409T0000Z/
Inland Volusia County-Southern Brevard County-Indian River-
Okeechobee-St. Lucie-Martin-Coastal Volusia County-
Northern Brevard County-
827 PM EDT Sat Apr 8 2017

...RED FLAG WARNING HAS EXPIRED FOR EAST CENTRAL FLORIDA...

Conditions remain dry, though there will be a slow relative
humidity recovery through the night.

$$

SEDLOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 4:00 AM EDTRip Current StatementMLBVolusia16 hr
Apr 8, 3:31 PM EDTFire Weather WatchMLBLake, Orange, Osceola, Seminole13 hr

Nearby

Red Flag Warnings in Florida, 2017Every red flag warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.