Alert archive / Florida / Special Weather Statements in 2017
Special Weather Statement, NWS Miami, FL
NWS Miami, FL issued this special weather statement at Jun 30, 2017, 6:01 PM EDT for Glades County, Florida. It was in force for 44 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 30, 2017, 6:01 PM EDT (22:01 UTC)
- Expired
- Jun 30, 2017, 6:45 PM EDT
- In force
- 44 min
- Issued by
- NWS Miami, FL
County Glades County, FL
The radar
The Tampa radar (KTBW), 141 km from the middle of the area, began a volume at 22:01 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 12:00Z, 10.0 hours before the alert went out and 141 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
- 1183 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 878 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- -17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>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 30, 3:37 PM EDT, 2 hours 24 minutes earlier.
Area forecast discussion, Jun 30, 3:37 PM EDT, 2 hours 24 minutes before
Area Forecast Discussion National Weather Service Miami FL 337 PM EDT Fri Jun 30 2017 .DISCUSSION... THIS AFTERNOON AND TONIGHT: A little stronger southeasterly flow today has already pushed a more diffuse Atlantic seabreeze well inland this afternoon with scattered convection accompanying it. While slower to develop, the Gulf breeze has also managed to make it inland to the US41/I75 corridor. SAL layer is evident on satellite this afternoon across the region and NW Caribbean. This has been keeping convective coverage down so far, though expect a little bit of an upswing with the seabreeze merger near the Gulf coast later this afternoon. Other outflow boundary collisions will keep activity going into the late evening hours over the interior and Gulf coast. With the stronger SE flow and adequate low level moisture, Atlantic showers will make a comeback this evening and overnight. This activity will brush the east coast occasionally with the remainder of the region staying dry. THIS WEEKEND THROUGH FOURTH OF JULY HOLIDAY: Weather for the long holiday weekend will be dominated by the western Atlantic ridge, both at the surface and aloft, with its axis extending across the Florida peninsula. East-southeast flow prevails through the period, with a more dominant Atlantic seabreeze pushing quickly across the southern peninsula each afternoon. Remnant drier air from the aforementioned SAL layer may continue to suppress convection again on Saturday, with coverage closer to climo Sunday through Tuesday. Showers and thunderstorms will be focused over the interior and Gulf Coast during the afternoon/evening, with nighttime and morning isolated to widely scattered showers/storms over the Atlantic waters occasionally reaching into portions of the east coast. Temperatures will be near to slightly above normal, with highs in the 90s for most areas and lows generally in the 70s. REMAINDER OF NEXT WEEK: The western Atlantic ridge axis remains to our north through the remainder of next week, resulting in a fairly typical summertime easterly flow pattern across the region. The sea breezes will develop during the afternoon hours, with scattered showers and thunderstorms favored over the interior and Gulf Coast as the Atlantic seabreeze moves inland quicker. Nighttime/early morning activity will favor over the Atlantic waters and east coast. With a slight weakening in the upper-level ridging, daytime activity may also be prevalent along the east coast as well. Temperatures will be near to slightly above normal during the long term period. && .MARINE...Generally good boating conditions are expected across South Florida into early next week under light east-southeasterly flow and seas generally 2 feet or less. Isolated showers and thunderstorms are expected over the open waters particularly in the overnight and morning hours, with more scattered coverage along the Gulf coast in the late afternoon and evening as activity pushes off the mainland. Locally erratic winds along with lightning will be possible in and around thunderstorms. && .AVIATION...Convection is forecast for this afternoon, mainly well west of the Atlantic coast TAF sites, other than PBI. The easterly flow across the area is forecast to keep the convection in the interior and over the Gulf coast through the early evening hours. While there is a slight chance for convection over the metro area, the certainty is too low for any mention at this time. KAPF will see increasing chances of VCTS and SHRA through the late afternoon and early evening. && .PRELIMINARY POINT TEMPS/POPS... West Palm Beach 79 90 78 90 / 20 20 20 20 Fort Lauderdale 81 90 80 90 / 20 20 20 20 Miami 80 91 79 91 / 20 20 20 20 Naples 76 92 76 92 / 30 40 20 40 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...None. AM...None. GM...None. && DISCUSSION...88/ALM MARINE...88/ALM AVIATION...13
Hazardous weather outlook, Jun 30, 10:42 AM EDT, 7 hours 19 minutes before
Hazardous Weather Outlook for South Florida National Weather Service Miami FL 1042 AM EDT Fri Jun 30 2017 AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676- 010245- 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-Metro Palm Beach-Coastal Collier-Inland Collier- Inland Broward-Metro Broward-Inland Miami-Dade-Metro Miami-Dade- Mainland Monroe-Coastal Palm Beach-Coastal Broward-Coastal Miami- Dade-Far South Miami-Dade- 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- 1042 AM EDT Fri Jun 30 2017 ...Chance of Thunderstorms this Afternoon... This hazardous weather outlook is for South Florida. .DAY ONE...TODAY AND TONIGHT Thunderstorms: Thunderstorms are possible over interior and western sections of South Florida by this afternoon. While primary threat is lightning, gusty wind is also possible in the stronger thunderstorms. Waterspouts: Waterspouts are possible, especially this morning, on Atlantic waters and Biscayne Bay. Wind: The strongest thunderstorms may produce wind gusts to around 50 mph, especially over northwestern sections of South Florida. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY Scattered to numerous mainly afternoon thunderstorms are possible each day, especially over interior sections of South Florida. The primary threat will be lightning. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. For more information...visit the National Weather Service in Miami website at www.weather.gov/miami.
In the hours before
Special weather statement, Jun 30, 6:01 PM EDT, 0 minutes before
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</html>Nearby
Special Weather Statements in Florida, 2017Every special weather statement in 2017
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.