Alert archive / Florida / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 117, NWS Melbourne, FL

September 7, 2026Martin County, Saint Lucie County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Sep 7, 2026, 2:43 PM EDT for Martin County, Saint Lucie County, Florida. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 7, 2026, 2:43 PM EDT (18:43 UTC)
Expired: Sep 7, 2026, 3:15 PM EDT
In force: 32 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Martin County, FL, Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 101 km from the middle of the area, began a volume at 18:42 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

Miami, FL (KMFL), launched 12:00Z, 6.7 hours before the alert went out and 157 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: 1948 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 768 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: -38 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Sep 7, 1:56 PM EDT, 47 minutes earlier.

Area forecast discussion, Sep 7, 1:56 PM EDT, 47 minutes before

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In the hours before

Special weather statement, Sep 7, 11:44 AM EDT, 2 hours 59 minutes before

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</head>
<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Special weather statement, Sep 7, 1:37 PM EDT, 1 hour 6 minutes before

Special Weather Statement
National Weather Service Melbourne FL
137 PM EDT Mon Sep 7 2026

FLZ154-159-254-259-071815-
Coastal St. Lucie FL-Inland St. Lucie FL-Inland Indian River FL-
Coastal Indian River FL-
137 PM EDT Mon Sep 7 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHERN ST. LUCIE AND
SOUTHEASTERN INDIAN RIVER COUNTIES THROUGH 215 PM EDT...

At 137 PM EDT, Doppler radar was tracking a strong thunderstorm near
Pointe West, or near Vero Beach South, moving east at 15 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Fort Pierce, Vero Beach, Indian River Shores, Vero Beach South, and
Gifford.

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 2732 8022 2739 8067 2773 8058 2776 8037
      2744 8023
TIME...MOT...LOC 1737Z 256DEG 13KT 2759 8046

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Law

Local storm report, Sep 7, 2:05 PM EDT, 38 minutes before

Preliminary Local Storm Report
National Weather Service Melbourne FL
205 PM EDT Mon Sep 7 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0153 PM     Marine Tstm Wind 1 WNW Vero Beach        27.65N 80.42W
09/07/2026  M44 MPH          Indian River       FL   ASOS

            Vero Beach Municipal Airport measured a peak
            wind gust of 44MPH/38KT from the west at
            1:53 PM.

&&

ZL

Special weather statement, Sep 7, 2:12 PM EDT, 31 minutes before

Special Weather Statement
National Weather Service Melbourne FL
212 PM EDT Mon Sep 7 2026

FLZ058-154-159-164-259-264-071845-
Okeechobee FL-Coastal St. Lucie FL-Inland St. Lucie FL-
Inland Martin FL-Coastal Martin FL-Coastal Indian River FL-
212 PM EDT Mon Sep 7 2026

...STRONG THUNDERSTORMS WILL IMPACT ST. LUCIE...SOUTHEASTERN
OKEECHOBEE...SOUTHEASTERN INDIAN RIVER AND NORTHWESTERN MARTIN
COUNTIES THROUGH 245 PM EDT...

At 211 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Vero Beach to Fort Pierce North to near
Treasure Island. Movement was east at 10 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Port Saint Lucie, Walton, Fort Pierce, Stuart, and Vero Beach.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
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 2708 8066 2711 8066 2716 8071 2721 8079
      2714 8087 2715 8087 2748 8051 2769 8034
      2729 8017 2703 8040
TIME...MOT...LOC 1811Z 268DEG 10KT 2764 8035 2747 8037 2718 8076

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Wishard

Local storm report, Sep 7, 2:27 PM EDT, 16 minutes before

Preliminary Local Storm Report
National Weather Service Melbourne FL
227 PM EDT Mon Sep 7 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0200 PM     Marine Tstm Wind 1 WNW Vero Beach        27.65N 80.42W
09/07/2026  M48 MPH          Indian River       FL   ASOS

            Vero Beach Municipal Airport measured a peak
            wind gust of 48MPH/42KT from the north at
            2:00 PM. Earlier, a gust to 44MPH/38KT
            occurred at 1:53 PM.

&&

ZL

Special weather statement, Sep 7, 2:41 PM EDT, 2 minutes before

Special Weather Statement
National Weather Service Melbourne FL
241 PM EDT Mon Sep 7 2026

FLZ159-164-259-264-071915-
Coastal St. Lucie FL-Inland St. Lucie FL-Inland Martin FL-
Coastal Martin FL-
241 PM EDT Mon Sep 7 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN ST. LUCIE AND
MARTIN COUNTIES THROUGH 315 PM EDT...

At 241 PM EDT, Doppler radar was tracking a strong thunderstorm over
North River Shores, or near Jensen Beach, moving southeast at 25 mph.

HAZARD...Wind gusts of 50 to 55 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...
Port Saint Lucie, Jupiter, Walton, Fort Pierce, and Stuart.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

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 2697 8008 2697 8014 2695 8015 2696 8044
      2720 8055 2737 8039 2743 8025 2741 8022
      2721 8013 2703 8008
TIME...MOT...LOC 1841Z 299DEG 23KT 2724 8030

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...55 MPH

Wishard

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 7, 10:56 AM EDT	Special Weather Statement	MLB	Orange	34 min
Sep 7, 11:44 AM EDT	Special Weather Statement	MLB	Osceola	31 min
Sep 7, 1:32 PM EDT	Special Marine Warning	MLB		58 min
Sep 7, 1:37 PM EDT	Special Weather Statement	MLB	Indian River, Saint Lucie	38 min
Sep 7, 2:02 PM EDT	Special Marine Warning	MLB		118 min
Sep 7, 2:12 PM EDT	Special Weather Statement	MLB	Martin, Saint Lucie	33 min
Sep 7, 2:41 PM EDT	Special Weather Statement	MLB	Martin	34 min
Sep 7, 2:56 PM EDT	Special Marine Warning	MLB		64 min
Sep 7, 3:09 PM EDT	Severe Thunderstorm Warning	MLB	Martin	24 min
Sep 7, 3:55 PM EDT	Areal Flood Advisory	MLB	Brevard	95 min
Sep 7, 5:36 PM EDT	Areal Flood Advisory	MLB	Lake, Orange, Seminole	114 min
Sep 7, 5:56 PM EDT	Flash Flood Warning	MLB	Orange	94 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.