Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 95, NWS Miami, FL

June 15, 2012Collier County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jun 15, 2012, 7:24 PM EDT for Collier County, Florida. It was in force for 36 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: Jun 15, 2012, 7:24 PM EDT (23:24 UTC)
Expired: Jun 15, 2012, 8:00 PM EDT
In force: 36 min
Issued by: NWS Miami, FL
Area: Storm-based polygon

County Collier County, FL

The radar

The Miami radar (KAMX), 102 km from the middle of the area, began a volume at 23:26 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	HAIL 1	Jerome, FL

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, 3:56 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 11.4 hours before the alert went out and 108 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: 1194 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 805 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 48 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.

002 
WUUS52 KMFL 152324
SVRMFL
FLC021-160015-
/O.NEW.KMFL.SV.W.0095.120615T2324Z-120616T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
724 PM EDT FRI JUN 15 2012

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL COLLIER COUNTY IN SOUTH FLORIDA.

* UNTIL 815 PM EDT

* AT 722 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 5 MILES SOUTH OF INTERSECTION
  ALLIGATOR ALLEY AND SR 29...AND MOVING SOUTHEAST AT 25 MPH.

* THE STORM WILL AFFECT...
  COPELAND...
  CARNESTOWN...
  OCHOPEE...
  BIG CYPRESS NATIONAL PRESERVE...
  AND SURROUNDING COMMUNITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MPH AND
OR LARGE HAIL. FREQUENT TO EXCESSIVE LIGHTNING AND HEAVY RAINFALL IS
ALSO POSSIBLE. IF THE STORM APPROACHES YOUR LOCATION, SEEK SHELTER IN
AN ENCLOSED BUILDING ON THE LOWEST FLOOR AND STAY AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT FRIDAY
EVENING FOR SOUTHERN FLORIDA.

&&

LAT...LON 2624 8137 2597 8100 2580 8132 2580 8136
      2581 8137 2583 8137 2586 8142 2586 8143
      2612 8156
TIME...MOT...LOC 2323Z 322DEG 21KT 2607 8136

$$

JE

1 follow-up statement

138 
WWUS52 KMFL 160000
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
800 PM EDT FRI JUN 15 2012

FLC021-160010-
/O.CAN.KMFL.SV.W.0095.000000T0000Z-120616T0015Z/
COLLIER FL-
800 PM EDT FRI JUN 15 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL COLLIER COUNTY IS
CANCELLED...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE THUNDERSTORM HAS
WEAKENED. THUS THE THUNDERSTORM WARNING HAS BEEN CANCELLED.

THUNDERSTORMS REMAIN IN THE AREA. FREQUENT LIGHTNING...GUSTY WINDS TO
40 MPH...VERY HEAVY RAINFALL AND SMALL HAIL ARE STILL POSSIBLE. STAY
TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR THE LATEST UPDATES.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT FRIDAY
EVENING FOR SOUTHERN FLORIDA.

LAT...LON 2624 8137 2597 8100 2580 8132 2580 8136
      2581 8137 2583 8137 2586 8142 2586 8143
      2612 8156
TIME...MOT...LOC 0000Z 322DEG 21KT 2590 8121

$$

JE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 8:13 PM EDT	Special Weather Statement	MFL	Miami-Dade	62 min
Jun 14, 8:21 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Palm Beach	24 min
Jun 14, 8:28 PM EDT	Special Marine Warning	MFL		62 min
Jun 14, 8:39 PM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade	51 min
Jun 14, 8:40 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Palm Beach	21 min
Jun 14, 9:00 PM EDT	Special Weather Statement	MFL	Miami-Dade	30 min
Jun 14, 9:03 PM EDT	Special Weather Statement	MFL	Broward	42 min
Jun 14, 9:07 PM EDT	Areal Flood Advisory	MFL	Miami-Dade	113 min
Jun 14, 9:25 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Miami-Dade	35 min
Jun 14, 9:37 PM EDT	Special Weather Statement	MFL	Miami-Dade	23 min
Jun 14, 9:41 PM EDT	Special Marine Warning	MFL		64 min
Jun 14, 9:47 PM EDT	Special Weather Statement	MFL	Broward	43 min
Jun 14, 9:57 PM EDT	Special Marine Warning	MFL		48 min
Jun 15, 1:45 PM EDT	Special Marine Warning	MFL		27 min
Jun 15, 2:05 PM EDT	Special Weather Statement	MFL	Palm Beach	25 min
Jun 15, 2:41 PM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	34 min
Jun 15, 2:44 PM EDT	Special Marine Warning	MFL		61 min
Jun 15, 3:01 PM EDT	Special Weather Statement	MFL	Broward	29 min
Jun 15, 3:14 PM EDT	Severe Thunderstorm Warning	MFL	Broward	31 min
Jun 15, 3:33 PM EDT	Special Weather Statement	MFL	Palm Beach	27 min
Jun 15, 3:37 PM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	23 min
Jun 15, 3:42 PM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade	33 min
Jun 15, 3:48 PM EDT	Special Weather Statement	MFL	Broward	27 min
Jun 15, 3:57 PM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	33 min
Jun 15, 3:59 PM EDT	Special Weather Statement	MFL	Glades	46 min
Jun 15, 4:16 PM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade	29 min
Jun 15, 4:18 PM EDT	Special Weather Statement	MFL	Miami-Dade	42 min
Jun 15, 4:45 PM EDT	Special Weather Statement	MFL	Miami-Dade	30 min
Jun 15, 4:54 PM EDT	Special Weather Statement	MFL	Glades	51 min
Jun 15, 5:08 PM EDT	Special Weather Statement	MFL	Miami-Dade	37 min
Jun 15, 5:18 PM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade, Monroe	27 min
Jun 15, 5:19 PM EDT	Severe Thunderstorm Warning	MFL	Glades, Hendry	26 min
Jun 15, 5:32 PM EDT	Severe Thunderstorm Warning	MFL	Hendry	28 min
Jun 15, 5:42 PM EDT	Severe Thunderstorm Warning	MFL	Glades, Hendry	26 min
Jun 15, 5:57 PM EDT	Severe Thunderstorm Warning	MFL	Collier, Hendry	63 min
Jun 15, 6:21 PM EDT	Severe Thunderstorm Warning	MFL	Collier, Hendry	54 min
Jun 15, 7:14 PM EDT	Severe Thunderstorm Warning	MFL	Collier, Miami-Dade	31 min
Jun 15, 7:17 PM EDT	Special Weather Statement	MFL	Collier	28 min

Nearby

Severe Thunderstorm Warnings in Florida, 2012 Every severe thunderstorm warning in 2012

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.