Alert archive / Florida / Red Flag Warnings in 2017

Red Flag Warning 3, NWS Melbourne, FL

March 19, 2017Orange County, Osceola County, Seminole County, Florida

NWS Melbourne, FL issued this red flag warning at Mar 19, 2017, 4:36 AM EDT for Orange County, Osceola County, Seminole County, Florida. It took effect at Mar 19, 2017, 2:00 PM EDT. It was in force for 5 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 19, 2017, 4:36 AM EDT (08:36 UTC)
In effect from
Mar 19, 2017, 2:00 PM EDT
Expired
Mar 19, 2017, 7:00 PM EDT
In force
5 hr
Issued by
NWS Melbourne, FL

Counties Orange County, FL, Osceola County, FL, Seminole County, FL

The radar

The Melbourne radar (KMLB), 67 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 72 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 2017-03-19Temperature 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 2017-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 145 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1837 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
145 m²/s²
0-3 km storm-relative helicity
182 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

950 
WWUS82 KMLB 190836
RFWMLB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Melbourne FL
436 AM EDT Sun Mar 19 2017

FLZ045-053-192300-
/O.NEW.KMLB.FW.W.0003.170319T1800Z-170319T2300Z/
Orange-Osceola-
436 AM EDT Sun Mar 19 2017

...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 7 PM
EDT THIS EVENING FOR LOW RELATIVE HUMIDITY WITH GUSTY WINDS FOR
ORANGE AND OSCEOLA COUNTIES...

The National Weather Service in Melbourne has issued a Red Flag
Warning, which is in effect from 2 PM this afternoon to 7 PM EDT
this evening. 

* AFFECTED AREA...Orange...Osceola.

* WIND...Northwest to north 15 mph with gusts around 20 mph.

* HUMIDITY...Minimum values 25 to 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
will occur. A combination of gusty winds...low relative 
humidity...and warm temperatures can contribute to extreme fire 
behavior this afternoon.

&&

$$
1 follow-up statement
117 
WWUS82 KMLB 191239
RFWMLB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Melbourne FL
839 AM EDT Sun Mar 19 2017

FLZ046-192300-
/O.EXA.KMLB.FW.W.0003.170319T1800Z-170319T2300Z/
Seminole-
839 AM EDT Sun Mar 19 2017

...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 7 PM
EDT THIS EVENING FOR LOW RELATIVE HUMIDITY WITH GUSTY WINDS FOR 
SEMINOLE COUNTY...

The National Weather Service in Melbourne has issued a Red Flag
Warning, which is in effect from 2 PM this afternoon to 7 PM EDT
this evening. 

* AFFECTED AREA...Seminole County.

* WIND...Northwest to north winds 15 mph with gusts around 20 
  mph.

* HUMIDITY...Minimum values 25 to 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
will occur. A combination of gusty winds...low relative
humidity...and warm temperatures can contribute to extreme fire
behavior this afternoon.

&&

$$

FLZ045-053-192300-
/O.CON.KMLB.FW.W.0003.170319T1800Z-170319T2300Z/
Orange-Osceola-
839 AM EDT Sun Mar 19 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
7 PM EDT THIS EVENING FOR LOW RELATIVE HUMIDITY WITH GUSTY WINDS 
FOR ORANGE AND OSCEOLA COUNTIES...

* AFFECTED AREA...Orange and Osceola Counties.

* WIND...Northwest to north winds 15 mph with gusts around 20 mph.

* HUMIDITY...Minimum values 25 to 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
will occur. A combination of gusty winds...low relative
humidity...and warm temperatures can contribute to extreme fire
behavior this afternoon.

&&

$$

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.