Alert archive / Florida / Special Weather Statements in 2023

Special Weather Statement, NWS Melbourne, FL

June 20, 2023Martin County, Okeechobee County, Saint Lucie County, Florida

NWS Melbourne, FL issued this special weather statement at Jun 20, 2023, 2:55 PM EDT for Martin County, Okeechobee County, Saint Lucie County, Florida. It was in force for 50 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 20, 2023, 2:55 PM EDT (18:55 UTC)
Expired
Jun 20, 2023, 3:45 PM EDT
In force
50 min
Issued by
NWS Melbourne, FL
Hail
0.00 in
Wind
40

Counties Martin County, FL, Okeechobee County, FL, Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 104 km from the middle of the area, began a volume at 18:57 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, 6.9 hours before the alert went out and 144 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 2023-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 852 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 2023-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.1939Sfc1 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
852 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
934 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
11 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 20, 2:54 PM EDT, 1 minute earlier.

Area forecast discussion, Jun 20, 2:54 PM EDT, 1 minute before
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Hazardous weather outlook, Jun 20, 10:06 AM EDT, 4 hours 49 minutes before
Hazardous Weather Outlook
National Weather Service Melbourne FL
1006 AM EDT Tue Jun 20 2023

AMZ550-552-555-570-572-575-FLZ041-044>046-053-058-141-144-154-159-
164-247-254-259-264-347-447-547-647-747-210300-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-Volusia-
Brevard County Line to Sebastian Inlet 0-20 nm-
Sebastian Inlet to Jupiter Inlet 0-20 nm-Flagler Beach to Volusia-
Brevard County Line 20-60 nm-Volusia-
Brevard County Line to Sebastian Inlet 20-60 nm-
Sebastian Inlet to Jupiter Inlet 20-60 nm-Inland Volusia-
Northern Lake-Orange-Seminole-Osceola-Okeechobee-Coastal Volusia-
Southern Lake-Coastal Indian River-Coastal Saint Lucie-
Coastal Martin-Inland Northern Brevard-Inland Indian River-
Inland Saint Lucie-Inland Martin-Mainland Northern Brevard-
Northern Brevard Barrier Islands-Inland Southern Brevard-
Mainland Southern Brevard-Southern Brevard Barrier Islands-
1006 AM EDT Tue Jun 20 2023

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

.THUNDERSTORM IMPACT...
Scattered to numerous showers and lightning storms into the
afternoon and through the late evening. Strong to marginally
severe storms will be possible and capable of wind gusts up to 50
to 60 mph, frequent to excessive cloud to ground lightning strikes,
hail up to 1 inch, and heavy rainfall. In addition, a brief
tornado along boundary interactions can't be ruled out.

.FLOOD IMPACT...
Locally heavy rainfall will have the potential to accumulate 1 to
2 inches in a short period of time. Locally high accumulations up
to 4 inches will be possible, which will lead to ponding of water
on roads, and minor flooding of low lying and poor drainage
areas, especially where heavy rains have already fallen.

.EXCESSIVE HEAT IMPACT...
The combination of hot afternoon temperatures in the low to mid 90s
and high humidity will lead to peak Heat Indices between 101 and
106 degrees this afternoon. Persons engaged in outdoor activities
should remain well hydrated and take indoor rest breaks in an air
conditioned location, if available. NEVER leave children or pets
unattended in a car for any amount of time.

.MARINE THUNDERSTORM GUST IMPACT...
Wind gusts of 35 knots or greater will be possible over inland
lakes, the Intracoastal Waterway, and Atlantic waters, as
lightning storms move southeastward at around 15 knots. Boaters
across the Intracoastal and near shore Atlantic waters should
watch for storms approaching from the north and west, and seek
safe shelter well in advance as storms.

.WIND AND SEA IMPACT...
Southwest to south winds will increase to 15 to 20 kts across the
local Atlantic waters this afternoon. Small craft should exercise
caution.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.
Above normal rain chances will continue through the week.
Scattered to numerous lightning storms each afternoon will be
capable of producing gusty winds, small hail, frequent lightning,
and heavy rainfall. A few storms will become strong to marginally
severe.

The combination of afternoon high temperatures in the lower 90s
and humidity will produce peak heat indices up to 106 through Wednesday,
mainly in Okeechobee and the Treasure Coast counties.

.SPOTTER INFORMATION STATEMENT...
Spotters should monitor the weather and self activate if needed.

Fehling

In the hours before

Special weather statement, Jun 20, 2:16 PM EDT, 39 minutes before
Special Weather Statement
National Weather Service Melbourne FL
216 PM EDT Tue Jun 20 2023

FLZ045-144-201845-
Orange FL-Southern Lake County FL-
216 PM EDT Tue Jun 20 2023

...A strong thunderstorm will impact portions of southwestern Lake
and southwestern Orange Counties through 245 PM EDT...

At 216 PM EDT, Doppler radar was tracking a strong thunderstorm near
Lake Louisa, or 7 miles south of Groveland, moving east at 30 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

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

Locations impacted include...
Ocoee, Winter Garden, Windermere, Bay Lake and Clermont.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 2851 8186 2857 8154 2835 8154 2835 8179
      2836 8179 2836 8186 2835 8186 2835 8196
TIME...MOT...LOC 1816Z 261DEG 27KT 2845 8182

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

Leahy
Special weather statement, Jun 20, 2:26 PM EDT, 29 minutes before
Special Weather Statement
National Weather Service Melbourne FL
226 PM EDT Tue Jun 20 2023

FLZ058-154-159-254-259-264-547-647-747-201900-
Southern Brevard Barrier Islands FL-Okeechobee FL-
Coastal St. Lucie FL-Inland St. Lucie FL-Inland Indian River FL-
Inland Martin FL-Coastal Indian River FL-Inland Southern Brevard FL-
Mainland Southern Brevard FL-
226 PM EDT Tue Jun 20 2023

...Strong thunderstorms will impact portions of St. Lucie,
Okeechobee, Indian River, northwestern Martin and southeastern
Brevard Counties through 300 PM EDT...

At 225 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles east of Sebastian Inlet State Park to
Vero Beach South to Buckhead Ridge. Movement was east at 25 mph.
Additional showers and storms pushing offshore will be capable of
strong wind gusts.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

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

Locations impacted include...
Fort Pierce, Sebastian, Vero Beach, Treasure Island and Okeechobee.

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.

&&

LAT...LON 2711 8066 2716 8071 2721 8081 2719 8084
      2714 8087 2719 8091 2723 8099 2730 8100
      2730 8103 2733 8105 2736 8103 2738 8108
      2783 8073 2793 8045 2747 8025 2699 8062
TIME...MOT...LOC 1825Z 264DEG 22KT 2787 8030 2759 8043 2712 8087

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

Leahy
Local storm report, Jun 20, 2:33 PM EDT, 22 minutes before
Preliminary Local Storm Report
National Weather Service Melbourne FL
233 PM EDT Tue Jun 20 2023

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

0204 PM     Tstm Wnd Gst     1 E Valkaria            27.96N  80.53W
06/20/2023  M47 mph          AMZ552             FL   Mesonet

            Mesonet site XIND measured a 47 mph/41 kt wind gust
            from the southwest.

&&

Event Number MLB2300291

MAT
Local storm report, Jun 20, 2:39 PM EDT, 16 minutes before
Preliminary Local Storm Report
National Weather Service Melbourne FL
239 PM EDT Tue Jun 20 2023

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

0224 PM     Tstm Wnd Gst     Vero Beach Airport      27.66N  80.41W
06/20/2023  M49 mph          Indian River       FL   ASOS

            KVRB ASOS measured a wind gust of 43 knots/49 mph from
            the west.

&&

Event Number MLB2300292

CRISTALDI
Special weather statement, Jun 20, 2:45 PM EDT, 10 minutes before
Special Weather Statement
National Weather Service Melbourne FL
245 PM EDT Tue Jun 20 2023

FLZ045-201915-
Orange FL-
245 PM EDT Tue Jun 20 2023

...A strong thunderstorm will impact portions of southwestern Orange
County through 315 PM EDT...

At 245 PM EDT, Doppler radar was tracking a strong thunderstorm over
Doctor Phillips, or near Windermere, moving east at 30 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

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

Locations impacted include...
Orlando, Ocoee, Windermere, Bay Lake and Azalea Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 2835 8156 2855 8155 2857 8154 2857 8118
      2835 8118
TIME...MOT...LOC 1845Z 267DEG 26KT 2845 8149

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

Leahy
Special weather statement, Jun 20, 2:55 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 8:04 PM EDTSevere Thunderstorm WarningMLBBrevard41 min
Jun 19, 8:18 PM EDTSpecial Weather StatementMLBOrange, Seminole27 min
Jun 19, 8:25 PM EDTSevere Thunderstorm WarningMLBIndian River50 min
Jun 19, 8:44 PM EDTSevere Thunderstorm WarningMLBBrevard, Orange, Seminole, Volusia31 min
Jun 19, 8:51 PM EDTSevere Thunderstorm Warning Considerable damage threatMLBOsceola39 min
Jun 19, 8:55 PM EDTSpecial Weather StatementMLBVolusia35 min
Jun 19, 8:57 PM EDTSpecial Marine WarningMLB93 min
Jun 19, 9:03 PM EDTSevere Thunderstorm WarningMLBBrevard, Orange, Volusia57 min
Jun 19, 9:11 PM EDTSevere Thunderstorm Warning Considerable damage threatMLBBrevard, Orange, Osceola49 min
Jun 19, 9:13 PM EDTSpecial Weather StatementMLBIndian River47 min
Jun 19, 9:42 PM EDTSevere Thunderstorm Warning Considerable damage threatMLBBrevard48 min
Jun 19, 10:00 PM EDTSevere Thunderstorm WarningMLBBrevard, Indian River, Okeechobee, Osceola, Saint Lucie45 min
Jun 19, 10:25 PM EDTSpecial Weather StatementMLBIndian River, Saint Lucie35 min
Jun 19, 10:26 PM EDTSpecial Marine WarningMLB94 min
Jun 19, 10:34 PM EDTSpecial Weather StatementMLBIndian River26 min
Jun 19, 10:47 PM EDTSpecial Weather StatementMLBOkeechobee43 min
Jun 19, 10:56 PM EDTSpecial Weather StatementMLBIndian River, Saint Lucie34 min
Jun 19, 10:59 PM EDTAreal Flood AdvisoryMLBIndian River, Okeechobee, Osceola, Saint Lucie3 hr
Jun 19, 11:24 PM EDTSpecial Weather StatementMLBOkeechobee, Saint Lucie51 min
Jun 19, 11:57 PM EDTSpecial Marine WarningMLB93 min
Jun 20, 10:52 AM EDTSpecial Weather StatementMLBFlagler23 min
Jun 20, 11:45 AM EDTSpecial Weather StatementMLBLake30 min
Jun 20, 12:17 PM EDTSpecial Weather StatementMLBVolusia28 min
Jun 20, 12:26 PM EDTSpecial Weather StatementMLBOsceola34 min
Jun 20, 12:44 PM EDTSevere Thunderstorm WarningMLBOrange, Osceola31 min
Jun 20, 12:46 PM EDTSevere Thunderstorm WarningMLBOsceola29 min
Jun 20, 12:51 PM EDTSpecial Weather StatementMLBVolusia24 min
Jun 20, 12:54 PM EDTSpecial Marine WarningMLB3 hr
Jun 20, 1:02 PM EDTSpecial Weather StatementMLBSeminole43 min
Jun 20, 1:03 PM EDTSevere Thunderstorm WarningMLBBrevard, Osceola42 min
Jun 20, 1:07 PM EDTSpecial Weather StatementMLBBrevard23 min
Jun 20, 1:16 PM EDTSevere Thunderstorm WarningMLBBrevard, Orange, Osceola, Seminole, Volusia44 min
Jun 20, 1:28 PM EDTSpecial Weather StatementMLBIndian River32 min
Jun 20, 1:56 PM EDTSpecial Weather StatementMLBIndian River, Okeechobee34 min
Jun 20, 2:11 PM EDTSpecial Marine WarningMLB3 hr
Jun 20, 2:16 PM EDTSpecial Weather StatementMLBLake29 min
Jun 20, 2:26 PM EDTSpecial Weather StatementMLBIndian River, Okeechobee, Saint Lucie34 min
Jun 20, 2:45 PM EDTSpecial Weather StatementMLBOrange30 min
Jun 20, 2:52 PM EDTSevere Thunderstorm WarningMLBOrange, Osceola23 min
Jun 20, 3:15 PM EDTSpecial Weather StatementMLBOrange, Seminole30 min
Jun 20, 3:22 PM EDTSpecial Weather StatementMLBVolusia53 min
Jun 20, 3:29 PM EDTSpecial Weather StatementMLBLake46 min
Jun 20, 3:40 PM EDTSpecial Weather StatementMLBOrange35 min
Jun 20, 3:45 PM EDTSpecial Weather StatementMLBMartin45 min
Jun 20, 3:53 PM EDTSpecial Marine WarningMLB67 min
Jun 20, 3:53 PM EDTSpecial Weather StatementMLBOkeechobee52 min
Jun 20, 3:55 PM EDTSpecial Weather StatementMLBBrevard35 min
Jun 20, 4:16 PM EDTSpecial Weather StatementMLBOrange29 min
Jun 20, 6:11 PM EDTSpecial Weather StatementMLBOkeechobee34 min
Jun 20, 6:14 PM EDTSpecial Weather StatementMLBOrange31 min
Jun 20, 6:46 PM EDTSpecial Weather StatementMLBIndian River44 min
Jun 20, 7:08 PM EDTSpecial Marine WarningMLB97 min

Nearby

Special Weather Statements in Florida, 2023Every special weather statement in 2023

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.