Alert archive / Florida / Special Weather Statements in 2015

Special Weather Statement, NWS Miami, FL

August 30, 2015Broward County, Florida

NWS Miami, FL issued this special weather statement at Aug 30, 2015, 6:33 AM EDT for Broward County, Florida. It was in force for 42 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: Aug 30, 2015, 6:33 AM EDT (10:33 UTC)
Expired: Aug 30, 2015, 7:15 AM EDT
In force: 42 min
Issued by: NWS Miami, FL

County Broward County, FL

The radar

The Miami radar (KAMX), 71 km from the middle of the area, began a volume at 10:34 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 00:00Z, 10.6 hours before the alert went out and 49 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: 2892 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 898 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 13 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Aug 30, 4:06 AM EDT, 2 hours 27 minutes earlier.

Area forecast discussion, Aug 30, 4:06 AM EDT, 2 hours 27 minutes before

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Hazardous weather outlook, Aug 30, 4:05 AM EDT, 2 hours 28 minutes before

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In the hours before

Special weather statement, Aug 30, 2:28 AM EDT, 4 hours 5 minutes before

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Special weather statement, Aug 30, 2:30 AM EDT, 4 hours 3 minutes before

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Special weather statement, Aug 30, 3:30 AM EDT, 3 hours 3 minutes before

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Local storm report, Aug 30, 3:54 AM EDT, 2 hours 39 minutes before

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Special weather statement, Aug 30, 6:23 AM EDT, 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
623 AM EDT SUN AUG 30 2015

FLZ073-075-174-301130-
FAR SOUTH MIAMI-DADE COUNTY FL-MAINLAND MONROE FL-INLAND MIAMI-
DADE COUNTY FL-
623 AM EDT SUN AUG 30 2015

...SIGNIFICANT WEATHER ADVISORY FOR FREQUENT TO EXCESSIVE LIGHTNING
AND 45 TO 55 MPH WINDS FOR SOUTHWESTERN MIAMI-DADE AND SOUTHERN
MAINLAND MONROE COUNTIES UNTIL 730 AM EDT...

* AT 623 AM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
  OVER MAHOGANY HAMMOCK...OR 13 MILES NORTH OF FLAMINGO...MOVING
  NORTHWEST AT 15 MPH.

* THE PRIMARY IMPACTS WILL BE FREQUENT TO EXCESSIVE LIGHTNING AND
  GUSTY WINDS OF 45 TO 55 MPH.  LIGHTNING IS THE NUMBER ONE WEATHER
  RELATED KILLER IN FLORIDA. TREES AND OPEN SHELTERS OFFER NO
  PROTECTION. THESE WINDS CAN DOWN SMALL TREE LIMBS AND BRANCHES...
  AND BLOW AROUND UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE
  BUILDING UNTIL THE STORM PASSES.

* LOCATIONS IMPACTED INCLUDE...
  MAHOGANY HAMMOCK...PA-HAY-OKEE OVERLOOK...FLAMINGO AND EVERGLADES
  NATIONAL PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO STREET FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 2513 8105 2522 8117 2529 8116 2530 8116
      2533 8112 2522 8102 2522 8092 2533 8097
      2536 8107 2542 8097 2543 8115 2551 8121
      2553 8105 2557 8108 2565 8092 2523 8051
      2514 8077 2515 8077
TIME...MOT...LOC 1023Z 125DEG 13KT 2532 8087

KM

Special weather statement, Aug 30, 6:33 AM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
633 AM EDT SUN AUG 30 2015

FLZ067-071-301115-
INLAND BROWARD COUNTY FL-INLAND PALM BEACH COUNTY FL-
633 AM EDT SUN AUG 30 2015

...SIGNIFICANT WEATHER ADVISORY FOR 45 TO 55 MPH WINDS FOR NORTH
CENTRAL BROWARD AND SOUTHERN PALM BEACH COUNTIES UNTIL 715 AM EDT...

* AT 633 AM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
  NEAR INTERSECTION I-75 AND U.S. 27...OR 7 MILES WEST OF SUNRISE...
  MOVING NORTHWEST AT 20 MPH.

* THE PRIMARY IMPACTS WILL BE GUSTY WINDS OF 45 TO 55 MPH. THESE
  WINDS CAN DOWN SMALL TREE LIMBS AND BRANCHES...AND BLOW AROUND
  UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE BUILDING UNTIL THE
  STORM PASSES.

* THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF ...INCLUDING THE
  FOLLOWING LOCATIONS...NORTH CENTRAL BROWARD AND SOUTHERN PALM
  BEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO STREET FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 2625 8034 2619 8035 2617 8045 2625 8056
      2636 8043
TIME...MOT...LOC 1033Z 144DEG 16KT 2621 8040

KM

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 30, 1:18 AM EDT	Special Marine Warning	MFL		27 min
Aug 30, 1:21 AM EDT	Special Weather Statement	MFL	Miami-Dade	39 min
Aug 30, 1:43 AM EDT	Special Weather Statement	MFL	Miami-Dade	47 min
Aug 30, 1:58 AM EDT	Special Marine Warning	MFL		47 min
Aug 30, 2:28 AM EDT	Special Weather Statement	MFL	Miami-Dade	47 min
Aug 30, 2:30 AM EDT	Special Weather Statement	MFL	Broward	45 min
Aug 30, 3:30 AM EDT	Special Weather Statement	MFL	Broward, Hendry, Palm Beach	60 min
Aug 30, 3:44 AM EDT	Areal Flood Advisory	MFL	Miami-Dade	3 hr
Aug 30, 3:49 AM EDT	Areal Flood Advisory	MFL	Miami-Dade	3 hr
Aug 30, 6:21 AM EDT	Special Marine Warning	MFL		54 min
Aug 30, 6:23 AM EDT	Special Weather Statement	MFL	Monroe	67 min
Aug 30, 7:59 AM EDT	Areal Flood Advisory	MFL	Miami-Dade	3 hr
Aug 30, 8:37 AM EDT	Special Marine Warning	MFL		53 min
Aug 30, 10:44 AM EDT	River Flood Warning	MFL	Glades	10 days
Aug 30, 12:59 PM EDT	Special Marine Warning	MFL		61 min
Aug 30, 1:17 PM EDT	Special Marine Warning	MFL		28 min
Aug 30, 2:02 PM EDT	Special Marine Warning	MFL		28 min
Aug 30, 4:02 PM EDT	Special Marine Warning	MFL		43 min
Aug 30, 7:38 PM EDT	Areal Flood Advisory	MFL	Collier	3 hr

Nearby

Special Weather Statements in Florida, 2015 Every special weather statement in 2015

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.