Alert archive / Florida / Red Flag Warnings in 2017

Red Flag Warning 1, NWS Melbourne, FL

March 3, 2017Lake County, Florida

NWS Melbourne, FL issued this red flag warning at Mar 3, 2017, 4:14 AM EST for Lake County, Florida. It took effect at Mar 3, 2017, 12:00 PM EST. It was in force for 6 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
Mar 3, 2017, 4:14 AM EST (09:14 UTC)
In effect from
Mar 3, 2017, 12:00 PM EST
Expired
Mar 3, 2017, 6:00 PM EST
In force
6 hr
Issued by
NWS Melbourne, FL

County Lake County, FL

The radar

The Melbourne radar (KMLB), 126 km from the middle of the area, began a volume at 09:15 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, 9.2 hours before the alert went out and 123 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 2017-03-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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, Cape Canaveral, FL at 00:00Z on 2017-03-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
6 J/kg
Mixed-layer CIN
-142 J/kg
Mixed-layer LCL
743 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

004 
WWUS82 KMLB 030914
RFWMLB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Melbourne FL
414 AM EST Fri Mar 3 2017


FLZ044-144-032300-
/O.NEW.KMLB.FW.W.0001.170303T1700Z-170303T2300Z/
Northern Lake County-Southern Lake County-
414 AM EST Fri Mar 3 2017

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM EST THIS
EVENING FOR long duration of low Relative Humidity with Wind FOR 
Lake county...

The National Weather Service in Melbourne has issued a Red Flag
Warning, which is in effect from noon today to 6 PM EST this
evening. 

* AFFECTED AREA...Lake County.

* WIND...North 15 mph with gusts 25 to 30 mph.

* HUMIDITY...Minimum RH values will be around 30 percent this
  afternoon. Duration below 35 percent will be around 4 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.

&&

$$

Kelly

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 3, 3:50 AM ESTLake Wind AdvisoryMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia15 hr
Mar 3, 4:04 AM ESTBeach Hazards StatementMLBVolusia15 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.