Alert archive / Florida / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 55, NWS Melbourne, FL

June 23, 2026Brevard County, Indian River County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jun 23, 2026, 7:06 PM EDT for Brevard County, Indian River County, Florida. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 23, 2026, 7:06 PM EDT (23:06 UTC)
Expired: Jun 23, 2026, 7:30 PM EDT
In force: 24 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Brevard County, FL, Indian River County, FL

The radar

The Melbourne radar (KMLB), 34 km from the middle of the area, began a volume at 23:09 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 11.1 hours before the alert went out and 170 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2133 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 841 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 11 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

534 
WUUS52 KMLB 232306
SVRMLB
FLC009-061-232330-
/O.NEW.KMLB.SV.W.0055.260623T2306Z-260623T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Melbourne FL
706 PM EDT Tue Jun 23 2026

The National Weather Service in Melbourne has issued a

* Severe Thunderstorm Warning for...
  Central Indian River County in east central Florida...
  South central Brevard County in east central Florida...

* Until 730 PM EDT.

* At 705 PM EDT, a severe thunderstorm was located 7 miles north of
  Blue Cypress Lake, moving east at 15 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Palm Bay, Sebastian, Fellsmere, Malabar, and Sebastian Highlands.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Frequent cloud to ground lightning is also occurring with this storm.
Move indoors immediately. Remember, lightning can strike beyond 10
miles away from a thunderstorm.

&&

LAT...LON 2766 8075 2798 8085 2803 8058 2771 8044
TIME...MOT...LOC 2305Z 251DEG 14KT 2783 8073 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Heil

3 follow-up statements

486 
WWUS52 KMLB 232314
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
714 PM EDT Tue Jun 23 2026

FLC009-061-232330-
/O.CON.KMLB.SV.W.0055.000000T0000Z-260623T2330Z/
Indian River FL-Brevard FL-
714 PM EDT Tue Jun 23 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR NORTHERN INDIAN RIVER AND SOUTH CENTRAL BREVARD COUNTIES...

At 714 PM EDT, a severe thunderstorm was located near Palm Bay,
moving northeast at 15 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Palm Bay, Sebastian, Fellsmere, Malabar, and Sebastian Highlands.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 2768 8074 2798 8080 2803 8058 2771 8044
TIME...MOT...LOC 2314Z 247DEG 14KT 2789 8070 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Heil

714 
WWUS52 KMLB 232322
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
722 PM EDT Tue Jun 23 2026

FLC009-061-232330-
/O.CON.KMLB.SV.W.0055.000000T0000Z-260623T2330Z/
Indian River FL-Brevard FL-
722 PM EDT Tue Jun 23 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR NORTH CENTRAL INDIAN RIVER AND SOUTH CENTRAL BREVARD COUNTIES...

At 722 PM EDT, a severe thunderstorm was located near Palm Bay,
moving east at 20 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Palm Bay, Sebastian, Fellsmere, Malabar, and Barefoot Bay.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 2770 8053 2773 8075 2799 8075 2803 8058
      2782 8049
TIME...MOT...LOC 2322Z 254DEG 19KT 2792 8064 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Heil

821 
WWUS52 KMLB 232329
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
729 PM EDT Tue Jun 23 2026

FLC009-061-232338-
/O.EXP.KMLB.SV.W.0055.000000T0000Z-260623T2330Z/
Indian River FL-Brevard FL-
729 PM EDT Tue Jun 23 2026

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL INDIAN RIVER AND
SOUTH CENTRAL BREVARD COUNTIES WILL EXPIRE AT 730 PM EDT...

The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

LAT...LON 2770 8053 2773 8075 2799 8075 2803 8058
      2782 8049
TIME...MOT...LOC 2328Z 251DEG 14KT 2793 8062 

$$

Heil

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 23, 2:26 PM EDT, 4 hours 40 minutes earlier. Its key messages:

Issued at 225 PM EDT Tue Jun 23 2026
Lower than normal rain chances this afternoon and evening, but storms that manage to form could produce frequent lightning strikes, strong to locally damaging winds, small hail, and torrential downpours.
Above normal heat this afternoon with high temperatures in the mid to upper 90s resulting in peak afternoon heat indices 102-107 and widespread Major HeatRisk impacts.
Confidence in rain chances and heat impacts Wednesday and Thursday are lower than normal, and residents and visitors should monitor the forecast for changes. Regardless, heat and rain are expected to return into the weekend and next week.

Area forecast discussion, Jun 23, 2:26 PM EDT, 4 hours 40 minutes before

Area Forecast Discussion
National Weather Service Melbourne FL
226 PM EDT Tue Jun 23 2026

...New KEY MESSAGES, DISCUSSION, MARINE...

.KEY MESSAGES...
Issued at 225 PM EDT Tue Jun 23 2026

- Lower than normal rain chances this afternoon and evening, but
  storms that manage to form could produce frequent lightning
  strikes, strong to locally damaging winds, small hail, and
  torrential downpours.

- Above normal heat this afternoon with high temperatures in the
  mid to upper 90s resulting in peak afternoon heat indices
  102-107 and widespread Major HeatRisk impacts.

- Confidence in rain chances and heat impacts Wednesday and
  Thursday are lower than normal, and residents and visitors
  should monitor the forecast for changes. Regardless, heat and
  rain are expected to return into the weekend and next week.

&&

.DISCUSSION...
Issued at 225 PM EDT Tue Jun 23 2026

Current-Tonight...Oppressive heat and humidity continue with
widespread Major HeatRisk impacts across ECFL this afternoon. Highs
generally widespread in the M-U90s with peak heat indices 102-107.
Latest sounding from KXMR rather "chilly" aloft at -8.1C. Forecasted
drier air will filter into our northern zones later today with
highest PWATs 1.75-1.95" expected from near Melbourne south. PoP
chances across the I-4 corridor near 20%, with 30-50% southward
later this afternoon/evening. SW/WSW flow 10-15 mph will keep the
ECSB from develop along the Volusia coast, with minimal development
and push inland from Brevard County southward. Still expecting a sea
breeze collision late generally south of Orlando with scattered
showers/lightning storms forecast. With drier air in place will need
to monitor for isolated strong to locally damaging wind gusts in a
few storms, as well as frequent lightning, small to coin-size hail,
and torrential downpours with localized flooding in play. Will also
monitor for this evening northward across at least northern Volusia,
as weak shortwave troughing approaches and some CAMs showing
convection pushing southward into the area with a late bump back up
in moisture here. Storm movement generally back toward the coast
with occasional erratic movement from chaotic boundary collisions.
Activity diminishes into mid-evening with thinning clouds overnight.

Overnight lows continue in the 70s with conditions humid. Fog
chances overall relatively low but will monitor for some smoke
settling across southeast Orange County from recent wildfire.

Wed-Thu...The surface ridge axis remains stymied southward with
light offshore flowing continuing, except for the afternoon/evening
where it "backs" onshore with sea breeze formation and push inland.
The mid-levels will have light northerly to variable winds with
occasional impulses traversing the area. A weak surface boundary
will slide southward toward the coverage warning area on Wed. Models
now suggest drier air will remain north of Lake/Volusia counties
with ample moisture for SCT to locally NMRS (30-60%) diurnal
convection both days. A few storms could become strong with primary
impacts of frequent lightning, gusty winds 40-55 mph locally, small
hail and torrential downpours leading to minor/nuisance flooding.
Highs still very warm L-M90s with peak heat indices 101-107,
resulting in widespread Moderate to Major HeatRisk impacts.
Conditions remain muggy at night with mins in the 70s.

Fri-Mon...Weak ridging aloft drifts from the western Atlc back west
across the FL peninsula and into the northern Gulf into the weekend.
At the surface, high pressure ridging moves north into the central
peninsula early in the period, but is forced back south late in the
weekend and early next week as another weak front drops into the
Deep South. Predominant SW/S flow (albeit weak) continues into the
weekend, but "backs" onshore each afternoon with sea breeze
formation and penetration into the interior. Diurnal showers/storms,
isolated to scattered thru the period. Highest coverage over the
interior late day and early evening, with weak/erratic steering
flow. Forecasted HeatRisk continues widespread Major with pockets of
Extreme impacts on any given day as both highs/lows remain above
normal with stifling humidity. Will monitor as peak heat indices
approach Advisory criteria into the weekend.

&&

.MARINE...
Issued at 225 PM EDT Tue Jun 23 2026

Generally favorable boating conditions through the week and into the
weekend as the Atlantic high weakly extends towards Florida. A weak
front will drop near central FL keeping the surface ridge axis
suppressed over South Florida through Thu, continuing offshore (WSW-
SW) flow. The front departs and the ridge lifts north towards
central FL Fri into the weekend, shifting flow more southerly at
times but generally remaining offshore. Winds "back" onshore (SE-E)
in the afternoon into the evening as the east coast sea breeze
develops, gradually pushing farther inland each day as offshore flow
weakens. Wind speeds 5-15 kts, occasionally pushing over 15 kts
offshore in the overnights. Seas 1-3 ft. Most showers and lightning
storms expected to stay inland, but a few could move across the
intracoastal waters in the evenings, and isolated overnight
convection can't be ruled out.

&&

.AVIATION...
(18Z TAFs)
Issued at 139 PM EDT Tue Jun 23 2026

VFR conditions are expected outside of showers/storms with high
pressure (~1021mb) over the W Gulf of America. W winds at 5-10kts
are forecast to back onshore at the coastal TAFs into the PM S of
KDAB before becoming light & mostly variable overnight. VCTS is
forecast this PM at KMCO and to the ESE with PROB30 groups at KMLB
and to the S. VCTS returns to the forecast after 17Z/18Z WED.

&&

.PRELIMINARY POINT TEMPS/POPS...
DAB  77  91  75  92 /  20  30  10  30
MCO  77  94  76  95 /  10  60  20  60
MLB  77  91  77  91 /  30  60  30  50
VRB  76  93  76  92 /  20  40  30  50
LEE  78  95  76  95 /  20  30  10  30
SFB  77  95  75  95 /  10  60  20  40
ORL  78  93  76  94 /  10  60  10  50
FPR  76  93  75  92 /  20  40  30  50

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...None.
AM...None.
&&

DISCUSSION...Sedlock
AVIATION...Fehling

In the hours before

Special weather statement, Jun 23, 5:40 PM EDT, 1 hour 26 minutes before

Special Weather Statement
National Weather Service Melbourne FL
540 PM EDT Tue Jun 23 2026

FLZ053-058-232230-
Okeechobee FL-Osceola FL-
540 PM EDT Tue Jun 23 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN OKEECHOBEE AND
SOUTHEASTERN OSCEOLA COUNTIES THROUGH 630 PM EDT...

At 540 PM EDT, Doppler radar was tracking a strong thunderstorm 13
miles west of Kissimmee Prairie Preserve, or 16 miles east of Avon
Park, moving east at 15 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Lake Marian and Kissimmee Prairie Preserve.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm. Seek
safe shelter inside a sturdy building or hard-topped vehicle.
Remember, lightning can strike beyond 10 miles away from a
thunderstorm. When thunder roars, go indoors!

&&

LAT...LON 2752 8121 2755 8121 2756 8118 2760 8114
      2764 8114 2766 8113 2768 8115 2771 8115
      2773 8117 2774 8116 2775 8118 2776 8117
      2782 8121 2784 8123 2788 8102 2751 8098
TIME...MOT...LOC 2140Z 267DEG 14KT 2765 8125

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

Heil

Special weather statement, Jun 23, 6:12 PM EDT, 54 minutes before

Special Weather Statement
National Weather Service Melbourne FL
612 PM EDT Tue Jun 23 2026

FLZ053-058-254-547-232245-
Okeechobee FL-Osceola FL-Inland Indian River FL-
Inland Southern Brevard FL-
612 PM EDT Tue Jun 23 2026

...STRONG THUNDERSTORMS WILL IMPACT NORTH CENTRAL OKEECHOBEE...
SOUTHWESTERN INDIAN RIVER AND SOUTHEASTERN OSCEOLA COUNTIES THROUGH
645 PM EDT...

At 612 PM EDT, Doppler radar was tracking a cluster of strong
thunderstorms near Kissimmee Prairie Preserve, or 14 miles south of
Lake Marian, moving east at 15 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Kenansville and Lake Marian.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm. Seek
safe shelter inside a sturdy building or hard-topped vehicle.
Remember, lightning can strike beyond 10 miles away from a
thunderstorm. When thunder roars, go indoors!

&&

LAT...LON 2758 8075 2760 8114 2764 8114 2765 8113
      2766 8113 2768 8115 2771 8115 2773 8117
      2774 8116 2775 8118 2776 8117 2778 8119
      2782 8121 2785 8124 2791 8085
TIME...MOT...LOC 2212Z 263DEG 13KT 2767 8106

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

Heil

Special weather statement, Jun 23, 6:48 PM EDT, 18 minutes before

Special Weather Statement
National Weather Service Melbourne FL
648 PM EDT Tue Jun 23 2026

FLZ053-254-547-232315-
Osceola FL-Inland Indian River FL-Inland Southern Brevard FL-
648 PM EDT Tue Jun 23 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN INDIAN RIVER...
SOUTH CENTRAL BREVARD AND EAST CENTRAL OSCEOLA COUNTIES THROUGH 715
PM EDT...

At 648 PM EDT, Doppler radar was tracking a strong thunderstorm 9
miles northwest of Blue Cypress Lake, moving northeast at 20 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Palm Bay.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 2772 8086 2787 8096 2805 8072 2796 8062
      2780 8057
TIME...MOT...LOC 2248Z 240DEG 17KT 2784 8084

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

Heil

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 8:37 PM EDT	Special Marine Warning	MLB		53 min
Jun 22, 8:46 PM EDT	Special Weather Statement	MLB	Brevard	29 min
Jun 23, 5:40 PM EDT	Special Weather Statement	MLB	Okeechobee	50 min
Jun 23, 5:56 PM EDT	Severe Thunderstorm Warning	MLB	Okeechobee, Osceola	19 min
Jun 23, 6:12 PM EDT	Special Weather Statement	MLB	Osceola	33 min
Jun 23, 6:48 PM EDT	Special Weather Statement	MLB	Indian River	27 min
Jun 23, 7:11 PM EDT	Special Marine Warning	MLB		94 min
Jun 23, 7:28 PM EDT	Special Weather Statement	MLB	Indian River	32 min
Jun 23, 7:39 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	24 min

Nearby

Severe Thunderstorm Warnings in Florida, 2026 Every severe thunderstorm 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.