Alert archive / Florida / Special Weather Statements in 2014

Special Weather Statement, NWS Miami, FL

August 9, 2014Broward County, Florida

NWS Miami, FL issued this special weather statement at Aug 9, 2014, 6:21 PM EDT for Broward County, Florida. It was in force for 24 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 9, 2014, 6:21 PM EDT (22:21 UTC)
Expired
Aug 9, 2014, 6:45 PM EDT
In force
24 min
Issued by
NWS Miami, FL

County Broward County, FL

The radar

The Miami radar (KAMX), 109 km from the middle of the area, began a volume at 22:21 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, 10.4 hours before the alert went out and 83 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 2014-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1925 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 2014-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -48 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
1925 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
853 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-48 m²/s²
0-3 km storm-relative helicity
-45 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.

343 
WWUS82 KMFL 092221
SPSMFL

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
621 PM EDT SAT AUG 9 2014
 
FLZ068-072-168-172-092245-
COASTAL BROWARD COUNTY FL-METRO BROWARD COUNTY FL-
COASTAL PALM BEACH COUNTY FL-METRO PALM BEACH COUNTY FL-
621 PM EDT SAT AUG 9 2014

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN COASTAL BROWARD 
COUNTY...NORTHEASTERN METRO BROWARD COUNTY...SOUTHEASTERN COASTAL 
PALM BEACH COUNTY AND SOUTHEASTERN METRO PALM BEACH COUNTY...

* UNTIL 6:45 PM EDT

* AT 619 PM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
  THUNDERSTORMS ALONG A LINE EXTENDING FROM LANTANA TO WILTON 
  MANORS...AND MOVING NORTHEAST AT 5 MPH. THESE STORMS ARE CAPABLE 
  OF PRODUCING FUNNEL CLOUDS AT ANYTIME ALONG WITH WIND GUSTS UP TO 
  40 MPH...FREQUENT LIGHTING STRIKES...AND HEAVY RAINFALL.

* THE STORMS WILL AFFECT... FORT LAUDERDALE...WEST PALM 
  BEACH...POMPANO BEACH...BOCA RATON... DEERFIELD BEACH...BOYNTON 
  BEACH...DELRAY BEACH...TAMARAC... WELLINGTON...MARGATE...LAKE 
  WORTH...LIGHTHOUSE POINT...PALM BEACH...LAUDERDALE-BY-THE-
  SEA...HIGHLAND BEACH...OCEAN RIDGE... LAUDERHILL...COCONUT 
  CREEK...OAKLAND PARK AND NORTH LAUDERDALE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS ACTIVITY WAS ALSO DEVELOPING IN AN ENVIRONMENT FAVORABLE FOR THE
FORMATION OF FUNNEL CLOUDS. STAY TUNED TO NOAA WEATHER RADIO AND
LOCAL MEDIA FOR ADDITIONAL UPDATES AND POSSIBLE WARNINGS.

TORRENTIAL RAINFALL CAN BE EXPECTED...CAUSING TEMPORARY PONDING ON
SOME ROADS AND MINOR FLOODING OF POOR DRAINAGE AREAS. MOTORISTS
SHOULD SLOW DOWN IN HEAVY RAINFALL TO REDUCE THE RISK OF HYDROPLANING
AND LEAVE A SAFE DISTANCE BETWEEN OTHER VEHICLES.

STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

FOR ADDITIONAL INFORMATION VISIT THE MIAMI NATIONAL WEATHER SERVICE
WEBSITE AT WWW.WEATHER.GOV/MIAMI. FOR INFORMATION IN SPANISH, VISIT
OUR WEBSITE AT WWW.WEATHER.GOV/MIAMI/ESPANOL.

&&

LAT...LON 2661 8005 2658 8005 2661 8004 2611 8010
      2611 8020 2666 8019 2666 8003 2662 8003
      2664 8005 2662 8005 2662 8004
TIME...MOT...LOC 2219Z 245DEG 6KT 2657 8005 2616 8013 

$$

BAXTER

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 3:18 PM EDTSpecial Weather StatementMFLBroward42 min
Aug 9, 5:19 PM EDTSpecial Marine WarningMFL41 min
Aug 9, 5:44 PM EDTSpecial Weather StatementMFLBroward31 min
Aug 9, 6:07 PM EDTSpecial Marine WarningMFL53 min

Nearby

Special Weather Statements in Florida, 2014Every special weather statement in 2014

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.