Alert archive / Florida / Red Flag Warnings in 2016

Red Flag Warning 1, NWS Melbourne, FL

March 21, 20166 counties in Florida

NWS Melbourne, FL issued this red flag warning at Mar 21, 2016, 3:03 AM EDT for 6 counties in Florida. It took effect at Mar 21, 2016, 10:00 AM EDT. It was in force for 9 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 21, 2016, 3:03 AM EDT (07:03 UTC)
In effect from
Mar 21, 2016, 10:00 AM EDT
Expired
Mar 21, 2016, 7:00 PM EDT
In force
9 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 07:03 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, 7.1 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 2016-03-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 550 joules per kilogram.LCLEL10008507005003002001001 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 2016-03-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 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
550 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
1095 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
148 m²/s²
Significant tornado parameter
0.3
Supercell composite
4.2

Open this sounding in Storm Lab

The text

As transmitted.

774 
WWUS82 KMLB 210703
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
303 AM EDT MON MAR 21 2016

...MUCH DRIER AND BREEZY TODAY...

FLZ041-044>047-053-054-058-141-144-147-212300-
/O.NEW.KMLB.FW.W.0001.160321T1400Z-160321T2300Z/
INLAND VOLUSIA COUNTY-NORTHERN LAKE COUNTY-ORANGE-SEMINOLE-
SOUTHERN BREVARD COUNTY-OSCEOLA-INDIAN RIVER-OKEECHOBEE-
COASTAL VOLUSIA COUNTY-SOUTHERN LAKE COUNTY-
NORTHERN BREVARD COUNTY-
303 AM EDT MON MAR 21 2016

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING. 

* AFFECTED AREA... INLAND VOLUSIA COUNTY... NORTHERN LAKE 
  COUNTY... ORANGE... SEMINOLE... SOUTHERN BREVARD COUNTY... 
  OSCEOLA... INDIAN RIVER... OKEECHOBEE... COASTAL VOLUSIA 
  COUNTY... SOUTHERN LAKE COUNTY... NORTHERN BREVARD COUNTY. 

* WIND...20 FOOT WINDS 15 TO 20 MPH WITH FREQUENT HIGHER GUSTS. 

* HUMIDITY...RELATIVE HUMIDITY VALUES OF 20 TO 30 PERCENT OVER
  MUCH OF THE INTERIOR AND AROUND 35 PERCENT NEAR THE COAST.

* 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 HIGH ENERGY RELEASE
COMPONENT VALUES WILL CREATE VERY HIGH FIRE GROWTH POTENTIAL.

&&

$$

SEDLOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 21, 2:56 AM EDTLake Wind AdvisoryMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia16 hr

Nearby

Red Flag Warnings in Florida, 2016Every red flag warning in 2016

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.