Alert archive / Florida / Special Weather Statements in 2023

Special Weather Statement, NWS Miami, FL

June 17, 2023Palm Beach County, Florida

NWS Miami, FL issued this special weather statement at Jun 17, 2023, 12:21 PM EDT for Palm Beach County, Florida. It was in force for 39 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 17, 2023, 12:21 PM EDT (16:21 UTC)
Expired
Jun 17, 2023, 1:00 PM EDT
In force
39 min
Issued by
NWS Miami, FL
Hail
0.00 in
Wind
50

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 137 km from the middle of the area, began a volume at 16:24 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, 4.4 hours before the alert went out and 114 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, Miami, FL at 12:00Z on 2023-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1301 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, Miami, FL at 12:00Z on 2023-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 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
1301 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
1186 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

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 Miami, FL wrote its last area forecast discussion before this special weather statement went out at Jun 17, 10:25 AM EDT, 1 hour 56 minutes earlier.

Area forecast discussion, Jun 17, 10:25 AM EDT, 1 hour 56 minutes before
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Hazardous weather outlook, Jun 17, 9:52 AM EDT, 2 hours 29 minutes before
Hazardous Weather Outlook
National Weather Service Miami FL
952 AM EDT Sat Jun 17 2023

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
181400-
Lake Okeechobee-Biscayne Bay-
Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM-
Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM-
Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM-
Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM
excluding the territorial waters of Bahamas-Glades-Hendry-
Inland Palm Beach County-Metro Palm Beach County-
Coastal Collier County-Inland Collier County-Inland Broward County-
Metro Broward County-Inland Miami-Dade County-
Metropolitan Miami Dade-Mainland Monroe-Coastal Palm Beach County-
Coastal Broward County-Coastal Miami Dade County-Far South Miami-
Dade County-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
952 AM EDT Sat Jun 17 2023

This Hazardous Weather Outlook is for Atlantic coastal waters,
southeast Florida, southern Florida, southwest Florida and Gulf of
Mexico.

...A Few Strong To Severe Thunderstorms Possible Today...
...Potential for Localized Flooding for East Coast Metro...
...Heat Indices in the Triple Digits This Afternoon...

.DAY ONE...Today and tonight.

Thunderstorms: Scattered to numerous thunderstorms are possible
today. A few could become strong to severe in nature, with the
potential of damaging wind gusts, small hail (up to the size of a
quarter), and frequent lightning. An isolated funnel cloud cannot be
ruled out as well.

Flooding: With the potential for heavy downpours with storms today
and additional rounds of activity, localized flooding will be
possible especially across the east coast metro areas.

Heat Index: Peak heat indices are expected to reach or exceed 105
degrees this afternoon, with potential for localized values
approaching 108 to 110 degrees. A Heat Advisory is in effect for
most of South Florida this afternoon.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Scattered to numerous thunderstorms will be possible each day
through the middle of the week. The strongest storms could contain
heavy downpours, gusty winds, small hail, funnel clouds and frequent
lightning.

Peak heat indices in the 104-107F range will be possible each day
through Monday.

The risk of rip currents increases for Gulf Coast beaches on Sunday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report high wind, hail, and
flooding to the National Weather Service forecast office in Miami.

In the hours before

Special weather statement, Jun 17, 12:21 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 8:20 PM EDTSpecial Marine WarningMFL40 min
Jun 17, 2:45 AM EDTHeat AdvisoryMFLBroward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more16 hr
Jun 17, 11:42 AM EDTSpecial Marine WarningMFL33 min
Jun 17, 12:12 PM EDTSpecial Marine WarningMFL18 min
Jun 17, 12:35 PM EDTSpecial Weather StatementMFLBroward25 min
Jun 17, 12:59 PM EDTSpecial Weather StatementMFLBroward46 min
Jun 17, 1:01 PM EDTSpecial Weather StatementMFLPalm Beach29 min
Jun 17, 1:02 PM EDTSpecial Marine WarningMFL43 min
Jun 17, 1:29 PM EDTSpecial Weather StatementMFLMiami-Dade46 min
Jun 17, 1:33 PM EDTSpecial Marine WarningMFL27 min
Jun 17, 1:43 PM EDTSpecial Marine WarningMFL62 min
Jun 17, 2:00 PM EDTSpecial Marine WarningMFL60 min
Jun 17, 2:05 PM EDTSpecial Marine WarningMFL40 min
Jun 17, 2:10 PM EDTSpecial Weather StatementMFLBroward50 min
Jun 17, 2:16 PM EDTSpecial Marine WarningMFL44 min
Jun 17, 2:18 PM EDTSpecial Weather StatementMFLMiami-Dade27 min
Jun 17, 2:40 PM EDTSpecial Weather StatementMFLGlades50 min
Jun 17, 2:54 PM EDTSpecial Marine WarningMFL66 min
Jun 17, 3:15 PM EDTSpecial Marine WarningMFL60 min
Jun 17, 3:54 PM EDTSpecial Weather StatementMFLPalm Beach51 min
Jun 17, 4:01 PM EDTSevere Thunderstorm WarningMFLPalm Beach29 min
Jun 17, 4:08 PM EDTSpecial Weather StatementMFLBroward37 min
Jun 17, 4:13 PM EDTSpecial Marine WarningMFL62 min
Jun 17, 4:13 PM EDTSpecial Marine WarningMFL32 min
Jun 17, 4:22 PM EDTSpecial Weather StatementMFLPalm Beach38 min
Jun 17, 4:23 PM EDTSpecial Marine WarningMFL52 min
Jun 17, 4:27 PM EDTSevere Thunderstorm WarningMFLPalm Beach33 min
Jun 17, 4:46 PM EDTSpecial Weather StatementMFLPalm Beach29 min
Jun 17, 4:52 PM EDTSevere Thunderstorm WarningMFLPalm Beach23 min
Jun 17, 5:12 PM EDTSpecial Marine WarningMFL63 min
Jun 17, 5:14 PM EDTSpecial Weather StatementMFLPalm Beach46 min
Jun 17, 5:31 PM EDTSpecial Weather StatementMFLBroward44 min
Jun 17, 5:40 PM EDTSevere Thunderstorm WarningMFLBroward, Miami-Dade35 min
Jun 17, 5:42 PM EDTSpecial Marine WarningMFL63 min
Jun 17, 5:43 PM EDTSpecial Weather StatementMFLBroward47 min
Jun 17, 6:16 PM EDTSpecial Weather StatementMFLBroward44 min
Jun 17, 6:42 PM EDTSpecial Marine WarningMFL48 min
Jun 17, 7:29 PM EDTSpecial Marine WarningMFL46 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.