Alert archive / Florida / Red Flag Warnings in 2017

Red Flag Warning 2, NWS Melbourne, FL

March 10, 2017Orange County, Osceola County, Seminole County, Florida

NWS Melbourne, FL issued this red flag warning at Mar 10, 2017, 12:36 PM EST for Orange County, Osceola County, Seminole County, Florida. 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 10, 2017, 12:36 PM EST (17:36 UTC)
Expired
Mar 10, 2017, 6:00 PM EST
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 17:40 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 12:00Z, 5.6 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 12:00Z on 2017-03-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 36 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 12:00Z on 2017-03-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
36 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
971 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

272 
WWUS82 KMLB 101736
RFWMLB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Melbourne FL
1236 PM EST Fri Mar 10 2017


FLZ045>047-053-147-102300-
/O.NEW.KMLB.FW.W.0002.170310T1736Z-170310T2300Z/
Orange-Seminole-Southern Brevard County-Osceola-
Northern Brevard County-
1236 PM EST Fri Mar 10 2017

...RED FLAG WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING FOR Low
Relative Humidity with Wind FOR Brevard, Orange, Osceola and
Seminole counties...

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

* AFFECTED AREA... Orange... Seminole... Brevard ... Osceola...
  Counties.


* WIND...West 15 mph with gusts around 20 mph.

* HUMIDITY...Minimum relative humidity around 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.

&&

$$

Kelly

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 10, 4:38 AM ESTSmall Craft AdvisoryMLB35 hr
Mar 10, 4:38 AM ESTSmall Craft AdvisoryMLB23 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.