Alert archive / Florida / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 46, NWS Miami, FL

June 15, 2011Collier County, Hendry County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jun 15, 2011, 7:13 PM EDT for Collier County, Hendry County, Florida. It was in force for 47 min. 6 reports 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: Jun 15, 2011, 7:13 PM EDT (23:13 UTC)
Expired: Jun 15, 2011, 8:00 PM EDT
In force: 47 min
Issued by: NWS Miami, FL
Area: Storm-based polygon

Counties Collier County, FL, Hendry County, FL

The radar

The Miami radar (KAMX), 118 km from the middle of the area, began a volume at 23:12 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
Jun 15, 7:35 PM EDT	TSTM WND GST 59	4 Ssw Orange Tree, FL	MEASURED AT GOLDEN GATE FIRE STATION 71.
Jun 15, 7:40 PM EDT	TSTM WND GST 60	Golden Gate, FL	MEASURED AT GOLDEN GATE FIRE STATION 70.
Jun 15, 7:45 PM EDT	TSTM WND DMG	East Naples, FL	ESTIMATED 60-70 MPH WINDS WITH 2 INCH BRANCHES BROKEN OFF MANY TREES.
Jun 15, 7:45 PM EDT	TSTM WND GST 86	3 Nne Belle Meade, FL	MEASURED ON ROOF OF COLLIER COUNTY EMERGENCY OPERATIONS CENTER. APPROXIMATE HEIGHT OF INSTRUMENT IS 60 FEET ABOVE GROUND. SURFACE WINDS LIKELY IN 70-80 MPH RANGE.
Jun 15, 8:04 PM EDT	TSTM WND GST 62	Belle Meade, FL
Jun 15, 8:10 PM EDT	TSTM WND GST 58	3 N Marco Island, FL	MEASURED AT ISLE OF CAPRI FIRE STATION.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 15, 1:52 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 11.2 hours before the alert went out and 123 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: 2477 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 617 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 11 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.

892 
WUUS52 KMFL 152313
SVRMFL
FLC021-051-160000-
/O.NEW.KMFL.SV.W.0046.110615T2313Z-110616T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
713 PM EDT WED JUN 15 2011

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN HENDRY COUNTY IN SOUTH FLORIDA.
  COLLIER COUNTY IN SOUTH FLORIDA.

* UNTIL 800 PM EDT

* AT 708 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE
  DETECTED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
  QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE
  STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 17 MILES NORTH OF
  GOLDEN GATE ESTATES TO 6 MILES WEST OF HENDRY CORRECTIONAL I/A/P TO
  9 MILES NORTHEAST OF BIG CYPRESS SEMINOLE INDIAN RESERVATION...AND
  MOVING SOUTH AT 35 MPH.

* THE LINE OF STORMS WILL AFFECT...
  HENDRY CORRECTIONAL I/A/P...
  AVE MARIA...
  INTERSECTION ALLIGATOR ALLEY AND SR 29...
  GOLDEN GATE ESTATES...
  GOLDEN GATE...
  EAST NAPLES...
  AND SURROUNDING COMMUNITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. IF
OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES AND
AVOID WATER. MOVE INDOORS OR INSIDE A VEHICLE IF POSSIBLE. AVOID
USING THE TELEPHONE UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG
UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.

&&

LAT...LON 2632 8173 2632 8166 2636 8166 2633 8130
      2635 8088 2587 8089 2581 8137 2582 8137
      2586 8142 2585 8147 2588 8148 2585 8152
      2589 8154 2588 8156 2590 8162 2589 8164
      2593 8174 2608 8180
TIME...MOT...LOC 2313Z 001DEG 32KT 2643 8165 2628 8130
          2635 8087

$$

TINGLER

2 follow-up statements

974 
WWUS52 KMFL 152338
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
738 PM EDT WED JUN 15 2011

FLC021-051-160000-
/O.CON.KMFL.SV.W.0046.000000T0000Z-110616T0000Z/
HENDRY FL-COLLIER FL-
738 PM EDT WED JUN 15 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR COLLIER AND SOUTHEASTERN HENDRY COUNTIES...

AT 734 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING LARGE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 7 MILES NORTH OF GOLDEN GATE TO
MILES CITY TO 10 MILES EAST OF BIG CYPRESS SEMINOLE INDIAN
RESERVATION...MOVING SOUTH AT 40 MPH.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

LAT...LON 2632 8173 2632 8166 2636 8166 2633 8130
      2635 8088 2587 8089 2581 8137 2582 8137
      2586 8142 2585 8147 2588 8148 2585 8152
      2589 8154 2588 8156 2590 8162 2589 8164
      2593 8174 2608 8180
TIME...MOT...LOC 2337Z 009DEG 34KT 2625 8173 2614 8134
          2624 8081

$$

TINGLER

221 
WWUS52 KMFL 152347
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
747 PM EDT WED JUN 15 2011

FLC021-051-160000-
/O.CON.KMFL.SV.W.0046.000000T0000Z-110616T0000Z/
HENDRY FL-COLLIER FL-
747 PM EDT WED JUN 15 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR COLLIER AND SOUTHEASTERN HENDRY COUNTIES...

AT 743 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS PRODUCING DESTRUCTIVE WINDS
IN EXCESS OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM GOLDEN GATE TO DEEP LAKE TO 12 MILES SOUTHEAST OF BIG CYPRESS
SEMINOLE INDIAN RESERVATION...MOVING SOUTH AT 40 MPH.

WIND GUSTS OVER 75 MPH HAVE BEEN RECORDED WITH THIS STORM.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 2632 8173 2632 8166 2636 8166 2633 8130
      2635 8088 2587 8089 2581 8137 2582 8137
      2586 8142 2585 8147 2588 8148 2585 8152
      2589 8154 2588 8156 2590 8162 2589 8164
      2593 8174 2608 8180
TIME...MOT...LOC 2346Z 009DEG 34KT 2617 8174 2606 8135
          2616 8082

$$

TINGLER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 8:00 PM EDT	Special Weather Statement	MFL	Palm Beach	30 min
Jun 14, 8:15 PM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	30 min
Jun 14, 8:27 PM EDT	Special Weather Statement	MFL	Broward	48 min
Jun 14, 8:31 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Palm Beach	44 min
Jun 14, 9:00 PM EDT	Special Marine Warning	MFL		31 min
Jun 15, 2:57 PM EDT	Special Weather Statement	MFL	Miami-Dade	33 min
Jun 15, 3:14 PM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade	31 min
Jun 15, 3:38 PM EDT	Special Weather Statement	MFL	Miami-Dade	52 min
Jun 15, 3:45 PM EDT	Special Weather Statement	MFL	Hendry	30 min
Jun 15, 3:48 PM EDT	Special Weather Statement	MFL	Miami-Dade	42 min
Jun 15, 4:14 PM EDT	Special Weather Statement	MFL	Glades	31 min
Jun 15, 4:16 PM EDT	Special Weather Statement	MFL	Collier	29 min
Jun 15, 4:33 PM EDT	Special Weather Statement	MFL	Monroe	42 min
Jun 15, 4:36 PM EDT	Special Weather Statement	MFL	Collier	24 min
Jun 15, 4:57 PM EDT	Special Weather Statement	MFL	Collier	33 min
Jun 15, 5:09 PM EDT	Special Weather Statement	MFL	Broward	36 min
Jun 15, 5:15 PM EDT	Special Marine Warning	MFL		90 min
Jun 15, 5:15 PM EDT	Severe Thunderstorm Warning	MFL	Collier, Miami-Dade	30 min
Jun 15, 5:20 PM EDT	Special Weather Statement	MFL	Glades	40 min
Jun 15, 5:44 PM EDT	Severe Thunderstorm Warning	MFL	Collier, Monroe	31 min
Jun 15, 5:54 PM EDT	Special Weather Statement	MFL	Broward	36 min
Jun 15, 5:57 PM EDT	Special Weather Statement	MFL	Glades, Palm Beach	33 min
Jun 15, 6:05 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Palm Beach	25 min
Jun 15, 6:29 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Palm Beach	46 min
Jun 15, 6:30 PM EDT	Special Weather Statement	MFL	Glades, Hendry, Palm Beach	30 min
Jun 15, 6:35 PM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	40 min
Jun 15, 6:40 PM EDT	Special Marine Warning	MFL		35 min
Jun 15, 6:43 PM EDT	Severe Thunderstorm Warning	MFL	Glades, Hendry	47 min
Jun 15, 6:52 PM EDT	Special Weather Statement	MFL	Collier	53 min
Jun 15, 7:04 PM EDT	Severe Thunderstorm Warning	MFL	Collier, Hendry, Palm Beach	41 min
Jun 15, 7:20 PM EDT	Special Weather Statement	MFL	Palm Beach	40 min
Jun 15, 7:33 PM EDT	Special Marine Warning	MFL		87 min
Jun 15, 7:53 PM EDT	Severe Thunderstorm Warning	MFL	Collier, Hendry, Monroe	34 min

Nearby

Severe Thunderstorm Warnings in Florida, 2011 Every severe thunderstorm warning in 2011

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.