Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Miami, FL

May 22, 2012Miami-Dade County, Florida

NWS Miami, FL issued this special weather statement at May 22, 2012, 6:37 PM EDT for Miami-Dade County, Florida. It was in force for 23 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: May 22, 2012, 6:37 PM EDT (22:37 UTC)
Expired: May 22, 2012, 7:00 PM EDT
In force: 23 min
Issued by: NWS Miami, FL

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 29 km from the middle of the area, began a volume at 22:38 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, 10.6 hours before the alert went out and 12 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: 1333 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 748 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 48 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.2

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 May 22, 3:24 PM EDT, 3 hours 13 minutes earlier.

Area forecast discussion, May 22, 3:24 PM EDT, 3 hours 13 minutes before

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Hazardous weather outlook, May 22, 11:08 AM EDT, 7 hours 29 minutes before

HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA...UPDATED
NATIONAL WEATHER SERVICE MIAMI FL
1108 AM EDT TUE MAY 22 2012

AMZ610-630-FLZ063-066>075-168-172>174-230615-
LAKE OKEECHOBEE-BISCAYNE BAY-GLADES-HENDRY-INLAND PALM BEACH-
METRO PALM BEACH-COASTAL COLLIER-INLAND COLLIER-INLAND BROWARD-
METRO BROWARD-INLAND MIAMI DADE-METRO MIAMI DADE-MAINLAND MONROE-
COASTAL PALM BEACH-COASTAL BROWARD-COASTAL MIAMI DADE-
FAR SOUTH MIAMI DADE-
1108 AM EDT TUE MAY 22 2012

...SOME STRONG TO SEVERE STORMS POSSIBLE INTERIOR AND EAST COAST AREAS TODAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE FORECAST TO DEVELOP
ACROSS SOUTH FLORIDA THIS AFTERNOON INTO EARLY THIS EVENING. THE
MAIN THREATS FROM ANY STRONG STORM THAT DEVELOPS WILL BE FREQUENT
LIGHTNING STRIKES, STRONG WIND GUSTS, HAIL, AND HEAVY RAINS. THERE
IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS.

WIND: WIND GUSTS TO AROUND 60 MPH WILL BE POSSIBLE THIS AFTERNOON
INTO THIS EVENING WITH THE STRONGEST STORMS INTERIOR AND EAST
COAST METRO AREAS.

HAIL: LARGE HAIL IS POSSIBLE WITH A FEW OF THE STRONGEST STORMS
THIS AFTERNOON AND EVENING MAINLY OVER THE INTERIOR AND EAST COAST
METRO AREAS.

FLOODING: LOCALLY HEAVY RAINFALL WILL BE POSSIBLE WITH THE
THUNDERSTORMS THIS AFTERNOON INTO THIS EVENING, POSSIBLY
RESULTING IN ISOLATED STREET FLOODING AND FLOODING OF POOR
DRAINAGE AREAS.

TORNADOES: A BRIEF TORNADO JUST CANNOT BE RULED OUT ALONG THE
ATLANTIC COAST LATE THIS AFTERNOON INTO THIS EVENING, ESPECIALLY
WHERE THE EAST AND WEST COAST SEA BREEZES COLLIDE.

RIP CURRENTS: THERE IS A SLIGHT RISK OF RIP CURRENTS AT THE EAST
COAST BEACHES.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED DAILY WITH
LIGHTNING AND LOCALIZED HEAVY RAINS BEING THE PRIMARY RISKS.

.SPOTTER INFORMATION STATEMENT...

WIDESPREAD SPOTTER ACTIVATION IS NOT ANTICIPATED, HOWEVER
INDIVIDUAL SPOTTERS ARE ENCOURAGED TO REPORT HIGH WIND, HAIL AND
FLOODING TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI.

FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN
MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI.

BAXTER

In the hours before

Local storm report, May 22, 3:06 PM EDT, 3 hours 31 minutes before

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Special weather statement, May 22, 4:25 PM EDT, 2 hours 12 minutes before

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Special weather statement, May 22, 5:04 PM EDT, 1 hour 33 minutes before

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Special weather statement, May 22, 5:44 PM EDT, 53 minutes before

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Local storm report, May 22, 6:04 PM EDT, 33 minutes before

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Special weather statement, May 22, 6:37 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 21, 8:00 PM EDT	Special Weather Statement	MFL	Miami-Dade	30 min
May 22, 9:32 AM EDT	Special Marine Warning	MFL		35 min
May 22, 12:04 PM EDT	Special Marine Warning	MFL		56 min
May 22, 12:26 PM EDT	Special Weather Statement	MFL	Palm Beach	34 min
May 22, 1:21 PM EDT	Areal Flood Advisory	MFL	Miami-Dade	114 min
May 22, 2:00 PM EDT	Tornado Warning	MFL	Broward	12 min
May 22, 2:21 PM EDT	Special Weather Statement	MFL	Broward	39 min
May 22, 2:24 PM EDT	Flash Flood Warning	MFL	Miami-Dade	111 min
May 22, 2:39 PM EDT	Areal Flood Advisory	MFL	Broward	111 min
May 22, 4:25 PM EDT	Special Weather Statement	MFL	Broward	35 min
May 22, 5:04 PM EDT	Special Weather Statement	MFL	Miami-Dade	26 min
May 22, 5:15 PM EDT	Areal Flood Advisory	MFL	Miami-Dade	2 hr
May 22, 5:44 PM EDT	Special Weather Statement	MFL	Miami-Dade	31 min
May 22, 7:21 PM EDT	Flash Flood Warning	MFL	Miami-Dade	3 hr
May 22, 7:37 PM EDT	Special Weather Statement	MFL	Miami-Dade	53 min

Nearby

Special Weather Statements in Florida, 2012 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.