Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 59, NWS Miami, FL

September 30, 2016Broward County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Sep 30, 2016, 2:14 PM EDT for Broward County, Florida. It was in force for 46 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Sep 30, 2016, 2:14 PM EDT (18:14 UTC)
Expired: Sep 30, 2016, 3:00 PM EDT
In force: 46 min
Issued by: NWS Miami, FL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Broward County, FL

The radar

The Miami radar (KAMX), 55 km from the middle of the area, began a volume at 18:15 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.

What was reported inside it

Time	Report	Where	Remark
Sep 30, 2:16 PM EDT	HAIL 0.25	2 Ese Weston, FL	A MEMBER OF THE PUBLIC REPORTED PEA SIZE HAIL EAST OF I-75 IN DAVIE VIA SOCIAL MEDIA AT 216PM EDT.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 6.2 hours before the alert went out and 31 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: 2306 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 856 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

249 
WUUS52 KMFL 301814
SVRMFL
FLC011-301900-
/O.NEW.KMFL.SV.W.0059.160930T1814Z-160930T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
214 PM EDT FRI SEP 30 2016

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN BROWARD COUNTY IN SOUTHEASTERN FLORIDA...

* UNTIL 300 PM EDT

* AT 214 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM SUNRISE TO MIRAMAR...MOVING NORTH AT 15 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  PEMBROKE PINES...MIRAMAR...CORAL SPRINGS...DAVIE AND PLANTATION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 2597 8027 2597 8040 2615 8046 2628 8041
      2624 8022
TIME...MOT...LOC 1814Z 199DEG 12KT 2619 8030 2598 8035 

HAIL...1.00IN
WIND...60MPH
 
$$

BAXTER

2 follow-up statements

293 
WWUS52 KMFL 301841
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
241 PM EDT FRI SEP 30 2016

FLC011-301900-
/O.CON.KMFL.SV.W.0059.000000T0000Z-160930T1900Z/
BROWARD FL-
241 PM EDT FRI SEP 30 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR EASTERN BROWARD COUNTY...

AT 241 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM CORAL SPRINGS TO NEAR SAWGRASS MILLS MALL...AND ARE
NEARLY STATIONARY.
 
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
PEMBROKE PINES...CORAL SPRINGS...DAVIE...PLANTATION AND SUNRISE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
MIAMI.

CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 2609 8025 2603 8042 2615 8046 2628 8041
      2624 8022
TIME...MOT...LOC 1841Z 204DEG 3KT 2626 8028 2612 8035 

HAIL...1.00IN
WIND...60MPH
 
$$

BAXTER

472 
WWUS52 KMFL 301853
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
253 PM EDT FRI SEP 30 2016

FLC011-301903-
/O.EXP.KMFL.SV.W.0059.000000T0000Z-160930T1900Z/
BROWARD FL-
253 PM EDT FRI SEP 30 2016

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN BROWARD COUNTY WILL
EXPIRE AT 300 PM EDT...
            
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER SMALL
HAIL...GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THESE
THUNDERSTORMS.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
MIAMI.

LAT...LON 2609 8025 2603 8042 2615 8046 2628 8041
      2624 8022
TIME...MOT...LOC 1853Z 199DEG 12KT 2629 8027 2615 8034 

$$

BAXTER

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 30, 2:21 PM EDT	Special Weather Statement	MFL	Palm Beach	54 min
Sep 30, 2:24 PM EDT	Special Weather Statement	MFL	Collier	36 min
Sep 30, 2:32 PM EDT	Special Weather Statement	MFL	Broward	58 min
Sep 30, 2:45 PM EDT	Special Weather Statement	MFL	Martin	45 min
Sep 30, 2:50 PM EDT	Special Marine Warning	MFL		55 min
Sep 30, 2:51 PM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	39 min
Sep 30, 3:02 PM EDT	Areal Flood Advisory	MFL	Palm Beach	3 hr
Sep 30, 3:23 PM EDT	Special Weather Statement	MFL	Glades	37 min
Sep 30, 3:28 PM EDT	Special Weather Statement	MFL	Broward	62 min
Sep 30, 3:38 PM EDT	Special Weather Statement	MFL	Collier	67 min
Sep 30, 3:55 PM EDT	Special Weather Statement	MFL	Miami-Dade	65 min
Sep 30, 4:08 PM EDT	Special Weather Statement	MFL	Miami-Dade	67 min
Sep 30, 4:16 PM EDT	Special Marine Warning	MFL		59 min
Sep 30, 4:16 PM EDT	Special Weather Statement	MFL	Palm Beach	59 min
Sep 30, 4:21 PM EDT	Special Weather Statement	MFL	Palm Beach	54 min
Sep 30, 4:28 PM EDT	Special Marine Warning	MFL		47 min
Sep 30, 4:40 PM EDT	Special Weather Statement	MFL	Glades	35 min
Sep 30, 4:54 PM EDT	Special Weather Statement	MFL	Miami-Dade	66 min
Sep 30, 5:14 PM EDT	Special Marine Warning	MFL		91 min

Nearby

Severe Thunderstorm Warnings in Florida, 2016 Every severe thunderstorm warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.