Alert archive / Florida / Red Flag Warnings in 2026
Red Flag Warning 7, NWS Melbourne, FL
NWS Melbourne, FL issued this red flag warning at May 6, 2026, 8:19 PM EDT for 6 counties in Florida. It took effect at May 7, 2026, 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 6, 2026, 8:19 PM EDT (00:19 UTC)
- In effect from
- May 7, 2026, 12:00 PM EDT
- Expired
- May 7, 2026, 8:00 PM EDT
- In force
- 8 hr
- Issued by
- NWS Melbourne, FL
Counties Brevard County, FL, Lake County, FL, Orange County, FL, Osceola County, FL, Seminole County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 75 km from the middle of the area, began a volume at 00:20 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
Tampa Bay, FL (KTBW), launched 00:00Z, 0.3 hours before the alert went out and 151 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.
- Mixed-layer CAPE
- 31 J/kg
- Mixed-layer CIN
- -288 J/kg
- Mixed-layer LCL
- 1353 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -58 m²/s²
- 0-3 km storm-relative helicity
- -45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
882 WWUS82 KMLB 070019 RFWMLB URGENT - FIRE WEATHER MESSAGE National Weather Service Melbourne FL 819 PM EDT Wed May 6 2026 ...Critical Fire Weather Conditions Expected Thursday... .Gusty southwest winds, low relative humidity, and drought conditions will combine to cause critical fire weather conditions from Lake and Volusia counties southward through Osceola and Brevard counties during the afternoon and evening hours Thursday. FLZ041-044>046-053-141-144-247-347-447-547-647-747-080000- /O.UPG.KMLB.FW.A.0005.260507T1600Z-260508T0000Z/ /O.NEW.KMLB.FW.W.0007.260507T1600Z-260508T0000Z/ Inland Volusia-Northern Lake-Orange-Seminole-Osceola- Coastal Volusia-Southern Lake-Inland Northern Brevard- Mainland Northern Brevard-Northern Brevard Barrier Islands- Inland Southern Brevard-Mainland Southern Brevard- Southern Brevard Barrier Islands- 819 PM EDT Wed May 6 2026 ...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM EDT THURSDAY FOR GUSTY SOUTHWEST WINDS AND LOW RELATIVE HUMIDITY FOR PORTIONS OF EAST CENTRAL FLORIDA... The National Weather Service in Melbourne has issued a Red Flag Warning, which is in effect from noon to 8 PM EDT Thursday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Volusia, Lake, Orange, Seminole, Osceola, and Brevard. * WIND...Southwest around 15 mph with gusts to around 25 mph. * HUMIDITY...As low as 27 to 35 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. && $$
What forecasters said that day
The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Melbourne, FL wrote its last area forecast discussion before this red flag warning went out at May 6, 7:38 PM EDT, 41 minutes earlier. Its key messages:
- Issued at 202 PM EDT Wed May 6 2026
- Hot and dry conditions through Thursday, with highs in the low to mid 90s nearing daily records.
- Rain chances begin to rise Friday into the weekend as a front nears and stalls just north of the area, with highs remaining above normal in the low to mid 90s for much of the area, as well as peak heat indices approaching the mid to upper 90s.
- Sensitive fire weather conditions will exist across the interior this afternoon, then an increasing fire danger is forecast into Thursday.
Area forecast discussion, May 6, 7:38 PM EDT, 41 minutes before
Area Forecast Discussion
National Weather Service Melbourne FL
738 PM EDT Wed May 6 2026
...New AVIATION...
.KEY MESSAGES...
Issued at 202 PM EDT Wed May 6 2026
- Hot and dry conditions through Thursday, with highs in the low to
mid 90s nearing daily records.
- Rain chances begin to rise Friday into the weekend as a front
nears and stalls just north of the area, with highs remaining
above normal in the low to mid 90s for much of the area, as well
as peak heat indices approaching the mid to upper 90s.
- Sensitive fire weather conditions will exist across the interior
this afternoon, then an increasing fire danger is forecast into
Thursday.
&&
.DISCUSSION...
Issued at 202 PM EDT Wed May 6 2026
Current-Thursday...The primary weather concern in the short term
continues to be the warmer than normal (hot) afternoon temperatures
(near record warmth) this period, as well as mainly dry conditions.
Please see Climate section below. Thu will be the hottest with
widespread M90s for max values and potentially a few U90s. The ECSB
will provide some relief this afternoon as it marches inland, but on
Thu a developing, stronger, offshore flow, as the ridge axis slides
south, will limit this feature to the immediate Treasure Coast and
it will likely be delayed, thus allowing many coastal locations to
soar into at least the L90s.
Residents and visitors sensitive to heat should take precautions for
these well above normal temperatures. Remember, NEVER leave children
or pets in cars for any period of time. The increasing heat, as well
as dry and breezy conditions Thursday will also lead to an increased
fire weather danger tomorrow.
Fri-Sun...Previous Modified Discussion...A weak cold front slides
southward into north Florida and stalls Fri morning. This boundary
will linger just north of the area through at least early Sat before
it begins to lift back northward into Sun. This front will lead to
an increase in moisture that will bring a return of isolated to
scattered showers and lightning storms, mainly during the afternoon
and evening hours as sea breeze boundaries push inland and collide.
PoPs 20-40% are limited to areas Okeechobee northward on Fri keeping
much of the Treasure Coast dry, then expands across the entire
region by Sun. Lingering drier air aloft will lead to the potential
for isolated strong storms each day, with primary threats of
frequent lightning strikes, gusty winds up to 40-45 mph and locally
heavy rainfall.
With the front remaining to the north and mid-level ridge center
moving slowly eastward across the Caribbean, temperatures will
remain hotter than normal. Highs will still reach the L90s for much
of the area, with a few M90s possible across the southern interior.
Increasing humidity will lead to peak heat index values in the M-
U90s both Fri/Sat and may increase to the U90s to around 100 degrees
on Sun. Potential heat impacts, particularly for heat-sensitive
individuals, will therefore persist through the weekend.
Previous Extended Forecast Discussion.
Mon-Tue...Large scale trough aloft will push through the eastern
U.S. into early next week, which will shift a weak cold front
through the area into early next week. This will increase shower and
storm chances into Monday (up to 40-50%), with rain chances then
decreasing into Tuesday (20-40%). Highs are forecast to remain above
normal, in the low 90s on Monday, but the frontal passage is
currently forecast to drop temperatures to more normal values
Tuesday.
&&
.MARINE...
Issued at 202 PM EDT Wed May 6 2026
Thru Tonight...Continued favorable boating conditions. The high
pressure ridge axis shifts across the local waters this afternoon,
then southward overnight. Onshore winds shift S/SSW tonight with
speeds AOB 15 kts. Seas generally 2-3 ft.
Thu-Sun...Boating conditions to remain generally favorable into the
weekend, though as the ridge axis shifts southward expect an
increase in moisture as a weak cold front settles into north-central
FL lingering mostly north of the area into early weekend before
eventually lifting back north. Southerly winds 10-15 kts on Thu
become offshore Thu night/early Fri, then back to onshore again Fri
aftn with sea breeze development and progression inland. Winds
continue generally S/SE thru the weekend with speeds 10-15 kts,
perhaps a little stronger Sun aftn. Seas typically continue 2-3 ft
and perhaps 4 ft well offshore late Sun as winds slightly increase.
Seas also higher invof ISOLD-SCT showers/lightning storms late Fri
into the weekend
&&
.AVIATION...
(00Z TAFs)
Issued at 738 PM EDT Wed May 6 2026
VFR through the TAF period. Easterly winds around 9-12 kts early
this evening become light and variable into tonight. Southwest
flow develops into Thursday morning, increasing to around 12 kts
in the afternoon. Tomorrow's east coast sea breeze will remain
pinned to the coast and struggle to move inland beyond the Brevard
and Treasure coast terminals.
&&
.FIRE WEATHER...
Issued at 202 PM EDT Wed May 6 2026
Increasingly hot and dry conditions forecast through Thursday, with
fire danger increasing, as highs reach into the low to mid 90s.
Sensitive fire weather conditions will exist across the interior
this afternoon, as Min RH values fall into the low to mid 30s.
Sustained wind speeds are generally forecast to remain below 15 mph
this afternoon; initially out of the south-southeast becoming east-
southeast behind the inland moving east coast sea breeze.
Potentially dangerous fire weather conditions are forecast into
Thursday afternoon, as winds increase out of the southwest and Min
RH values fall to the upper 20s to mid 30s for much of the area. A
Fire Weather Watch remains in place for Osceola and Brevard counties
northward through Lake and Volusia counties Thursday where
critically low RH and wind speeds around 15 mph are most likely to
coincide. The east coast sea breeze will likely form south of the
Cape, but will be delayed, switching winds to the southeast Thursday
afternoon. This may keep Min RH values above critical values along
the immediate coast where the sea breeze is able to form. Generally
Good dispersion this afternoon becomes Very Good to Excellent
Thursday, which may lead to control issues. Back to Fair to
Generally Good dispersion on Friday.
Isolated to scattered lightning storm chances begin to enter the
forecast for portions of east central Florida Friday afternoon into
the weekend as moisture slowly increases and sea breeze boundaries
collide.
&&
.CLIMATE...
Issued at 202 PM EDT Wed May 6 2026
Record high temperatures at local climate sites for today, May
6th and Thursday, May 7th:
Site May 6 May 7
Daytona 95 (1955) 93 (1952)
Leesburg 93 (2007) 94 (1984)
Sanford 95 (1952) 94 (2009)
Orlando 98 (1922) 98 (1915)
Melbourne 94 (2022) 91 (1980)
Vero Beach 95 (2022) 93 (1947)
Fort Pierce 95 (2022) 95 (1906)
&&
.PRELIMINARY POINT TEMPS/POPS...
DAB 70 96 73 86 / 0 0 0 20
MCO 70 95 73 92 / 0 0 0 40
MLB 72 93 74 87 / 0 0 0 10
VRB 70 93 71 89 / 0 0 0 0
LEE 70 94 73 91 / 0 0 0 30
SFB 70 97 73 91 / 0 0 0 40
ORL 71 96 73 91 / 0 0 0 40
FPR 69 93 70 89 / 0 0 0 0
&&
.MLB WATCHES/WARNINGS/ADVISORIES...
FL...Fire Weather Watch from Thursday afternoon through Thursday
evening for FLZ041-044>046-053-141-144-247-347-447-547-647-
747.
AM...None.
&&
DISCUSSION...Sedlock
AVIATION...LawNearby
Red Flag Warnings in Florida, 2026Every red flag warning in 2026
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.