Alert archive / Florida / Red Flag Warnings in 2018

Red Flag Warning 5, NWS Melbourne, FL

March 14, 20185 counties in Florida

NWS Melbourne, FL issued this red flag warning at Mar 14, 2018, 3:27 AM EDT for 5 counties in Florida. It took effect at Mar 14, 2018, 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
Mar 14, 2018, 3:27 AM EDT (07:27 UTC)
In effect from
Mar 14, 2018, 12:00 PM EDT
Expired
Mar 14, 2018, 8:00 PM EDT
In force
8 hr
Issued by
NWS Melbourne, FL

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

The radar

The Melbourne radar (KMLB), 86 km from the middle of the area, began a volume at 07:33 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, 7.5 hours before the alert went out and 81 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 2018-03-14Temperature 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 2018-03-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.1939587897117136Sfc1 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
1672 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

196 
WWUS82 KMLB 140727
RFWMLB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Melbourne FL
327 AM EDT Wed Mar 14 2018

...A reinforcing cold front will pass southward across the area
today with drier air and elevated northwest winds...

FLZ045-046-150000-
/O.UPG.KMLB.FW.A.0002.180314T1600Z-180315T0000Z/
/O.NEW.KMLB.FW.W.0005.180314T1600Z-180315T0000Z/
Orange-Seminole-
327 AM EDT Wed Mar 14 2018

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS
EVENING FOR LONG DURATION OF LOW RELATIVE HUMIDITY...ELEVATED 
WINDS ASSOCIATED WITH APPROACHING DRY COLD FRONT AND DRY 
VEGETATION WITH HIGH ENERGY RELEASE COMPONENT VALUES ACROSS MUCH 
OF EAST CENTRAL FLORIDA...

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... Orange... Seminole.

* WIND...Northwest winds approaching up to around 15 mph this 
  afternoon.

* HUMIDITY...Min Humidity around 20 percent this afternoon.

* IMPACTS...any fires that develop could spread quickly. 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 dry vegetation can 
contribute to extreme fire behavior.

&&

$$

FLZ041-044-047-053-054-141-144-147-150000-
/O.NEW.KMLB.FW.W.0005.180314T1600Z-180315T0000Z/
Inland Volusia County-Northern Lake County-
Southern Brevard County-Osceola-Indian River-
Coastal Volusia County-Southern Lake County-
Northern Brevard County-
327 AM EDT Wed Mar 14 2018

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS
EVENING FOR LONG DURATION OF LOW RELATIVE HUMIDITY...ELEVATED 
WINDS ASSOCIATED WITH APPROACHING DRY COLD FRONT AND DRY 
VEGETATION WITH HIGH ENERGY RELEASE COMPONENT VALUES ACROSS MUCH 
OF EAST CENTRAL FLORIDA...

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... Inland Volusia County... Northern Lake 
  County... Southern Brevard County... Osceola... Indian River...
   Coastal Volusia County... Southern Lake County... Northern 
  Brevard County. 

* WIND...Northwest winds approaching up to around 15 mph this 
  afternoon.

* HUMIDITY...Min Humidity 20 to 25 percent this afternoon just
  inland from the coast.

* IMPACTS...any fires that develop could spread quickly. Outdoor
  burning is not recommended.s 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 dry vegetation can 
contribute to extreme fire behavior.

&&

$$

Sedlock

Nearby

Red Flag Warnings in Florida, 2018Every red flag warning in 2018

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.