Alert archive / Florida / Red Flag Warnings in 2017

Red Flag Warning 18, NWS Melbourne, FL

May 26, 2017Orange County, Seminole County, Florida

NWS Melbourne, FL issued this red flag warning at May 26, 2017, 4:36 AM EDT for Orange County, Seminole County, Florida. It took effect at May 26, 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 26, 2017, 4:36 AM EDT (08:36 UTC)
In effect from
May 26, 2017, 12:00 PM EDT
Expired
May 26, 2017, 8:00 PM EDT
In force
8 hr
Issued by
NWS Melbourne, FL

Counties Orange County, FL, Seminole County, FL

The radar

The Melbourne radar (KMLB), 83 km from the middle of the area, began a volume at 08:36 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, 8.6 hours before the alert went out and 78 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 2017-05-26Temperature 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 2017-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.193958Sfc1 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
1978 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

596 
WWUS82 KMLB 260836
RFWMLB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Melbourne FL
436 AM EDT Fri May 26 2017

FLZ045-046-270000-
/O.NEW.KMLB.FW.W.0018.170526T1600Z-170527T0000Z/
/O.NEW.KMLB.FW.A.0011.170527T1600Z-170528T0000Z/
Orange-Seminole-
436 AM EDT Fri May 26 2017

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS
EVENING FOR LONG DURATION OF LOW RH FOR ORANGE AND SEMIMOLE
COUNTIES...

...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH 
SATURDAY EVENING FOR LONG DURATION OF LOW RH FOR
LAKE...SEMINOLE...ORANGE AND OSCEOLA COUNTIES...

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. a Fire Weather Watch has also been issued. This Fire 
Weather Watch is in effect from Saturday afternoon through 
Saturday evening. 

* AFFECTED AREA... Orange... Seminole.

* WIND...WEST TO NORTHWEST WIND 5 TO 10 MPH.

* HUMIDITY...MIN HUMIDITY BETWEEN 25 AND 30 PERCENT.

* 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.

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

&&

$$

FLZ044-053-144-270000-
/O.NEW.KMLB.FW.A.0011.170527T1600Z-170528T0000Z/
Northern Lake County-Osceola-Southern Lake County-
436 AM EDT Fri May 26 2017

...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SATURDAY EVENING FOR LONG DURATION OF LOW RH FOR
LAKE...SEMINOLE...ORANGE AND OSCEOLA COUNTIES...

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

* AFFECTED AREA... Northern Lake County... Osceola... Southern 
  Lake County. 

* WIND...WEST TO SOUTHWEST WINDS 5 TO 10 MPH.

* HUMIDITY...MIN RHS BETWEEN 25 AND 30 PERCENT.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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.

&&

$$

15

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 4:36 AM EDTFire Weather WatchMLBLake, Orange, Osceola, Seminole24 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.