Alert archive / Florida / Red Flag Warnings in 2017

Red Flag Warning 10, NWS Melbourne, FL

May 6, 20176 counties in Florida

NWS Melbourne, FL issued this red flag warning at May 6, 2017, 4:40 AM EDT for 6 counties in Florida. It took effect at May 6, 2017, 12:00 PM EDT. It was in force for 8 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
May 6, 2017, 4:40 AM EDT (08:40 UTC)
In effect from
May 6, 2017, 12:00 PM EDT
Expired
May 6, 2017, 8:00 PM EDT
In force
8 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 08:41 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

Cape Canaveral, FL (KXMR), launched 00:00Z, 8.7 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 2017-05-06Temperature 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 2017-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -45 square meters per square second.1939587897117Sfc1 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
1775 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
-45 m²/s²
0-3 km storm-relative helicity
61 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

401 
WWUS82 KMLB 060840
RFWMLB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Melbourne FL
440 AM EDT Sat May 6 2017

...RED FLAG WARNING FOR VOLUSIA...LAKE...ORANGE...SEMINOLE...
OSCEOLA...BREVARD AND INDIAN RIVER COUNTIES FOR LOW RELATIVE 
HUMIDITY WITH WIND 15 MPH OR GREATER AND HIGH ERC VALUES...

FLZ041-044>047-053-141-144-147-070000-
/O.UPG.KMLB.FW.A.0004.170506T1600Z-170507T0100Z/
/O.NEW.KMLB.FW.W.0010.170506T1600Z-170507T0000Z/
Inland Volusia County-Northern Lake County-Orange-Seminole-
Southern Brevard County-Osceola-Coastal Volusia County-
Southern Lake County-Northern Brevard County-
440 AM EDT Sat May 6 2017

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS
EVENING FOR LOW RH...WIND AND HIGH ERC VALUES FOR VOLUSIA...LAKE...
ORANGE...SEMINOLE...OSCEOLA...and BREVARD county...

The National Weather Service in Melbourne has issued a Red Flag
Warning, which is in effect from noon today to 8 PM EDT this
evening. The Fire Weather Watch is no longer in effect. 

* AFFECTED AREA... Inland Volusia County... Northern Lake
  County... Orange... Seminole... Southern Brevard County...
  Osceola... Coastal Volusia County... Southern Lake County...
  Northern Brevard County. 

* WIND...Sustained winds around 15 mph with gusts near 25 mph through
  mid afternoon.

* HUMIDITY...Minimum relative humidity near 30 percent this 
  afternoon.

* 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.

&&

$$

FLZ054-070000-
/O.NEW.KMLB.FW.W.0010.170506T1600Z-170507T0000Z/
Indian River-
440 AM EDT Sat May 6 2017

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS
EVENING FOR LOW RH...WINDS 15 MPH OR GREATER AND HIGH ERC VALUES
FOR INDIAN RIVER COUNTY...

The National Weather Service in Melbourne has issued a Red Flag
Warning, which is in effect from noon today to 8 PM EDT this
evening. 

* AFFECTED AREA... Indian River.

* WIND...Sustained winds around 15 mph with gusts near 25 mph
  through mid afternoon.

* HUMIDITY...Minimum relative humidity near 30 percent this
  afternoon.

* 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.

&&

$$

15
1 follow-up statement
876 
WWUS82 KMLB 061430
RFWMLB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Melbourne FL
1030 AM EDT Sat May 6 2017

...RED FLAG WARNING FOR ALL OF EAST CENTRAL FLORIDA FOR LOW 
RELATIVE HUMIDITY WITH WIND 15 MPH OR GREATER AND HIGH ERC 
VALUES...

FLZ058-059-064-070000-
/O.EXA.KMLB.FW.W.0010.170506T1600Z-170507T0000Z/
Okeechobee-St. Lucie-Martin-
1030 AM EDT Sat May 6 2017

The National Weather Service in Melbourne has issued a Red Flag 
Warning, which is in effect until 8 PM EDT this evening. 

* AFFECTED AREA...Okeechobee...Saint Lucie and Martin Counties.

* WIND...Sustained winds around 15 mph with gusts near 25 mph into
  this afternoon.

* HUMIDITY...Minimum relative humidity near 30 percent this 
  afternoon.

* 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.

&&

$$

FLZ041-044>047-053-054-141-144-147-070000-
/O.CON.KMLB.FW.W.0010.170506T1600Z-170507T0000Z/
Inland Volusia County-Northern Lake County-Orange-Seminole-
Southern Brevard County-Osceola-Indian River-
Coastal Volusia County-Southern Lake County-
Northern Brevard County-
1030 AM EDT Sat May 6 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
FOR LOW RELATIVE HUMIDITY WITH WIND 15 MPH OR GREATER AND HIGH 
ERC VALUES...

* AFFECTED AREA... Inland Volusia County... Northern Lake 
  County... Orange... Seminole... Southern Brevard County... 
  Osceola... Coastal Volusia County... Southern Lake County... 
  Northern Brevard County. 

* WIND...Sustained winds 15 to 20 mph with gusts of 25 to 30 mph 
  through mid afternoon. 

* HUMIDITY...Minimum relative humidity near 30 percent this 
  afternoon.

* 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.

&&

$$

Cristaldi

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 4:07 AM EDTLake Wind AdvisoryMLBLake, Orange, Osceola, Seminole, Volusia11 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.