Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Miami, FL

April 22, 2012Collier County, Glades County, Hendry County, Florida

NWS Miami, FL issued this special weather statement at Apr 22, 2012, 1:47 AM EDT for Collier County, Glades County, Hendry County, Florida. It was in force for 58 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
Apr 22, 2012, 1:47 AM EDT (05:47 UTC)
Expired
Apr 22, 2012, 2:45 AM EDT
In force
58 min
Issued by
NWS Miami, FL

Counties Collier County, FL, Glades County, FL, Hendry County, FL

The radar

The Miami radar (KAMX), 144 km from the middle of the area, began a volume at 05:49 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

Tampa Bay, FL (KTBW), launched 00:00Z, 5.8 hours before the alert went out and 162 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, Tampa Bay, FL at 00:00Z on 2012-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 12 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 00:00Z on 2012-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 228 square meters per square second.1939587897Sfc1 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
12 J/kg
Mixed-layer CIN
-208 J/kg
Mixed-layer LCL
622 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
228 m²/s²
0-3 km storm-relative helicity
217 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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 Apr 22, 12:10 AM EDT, 1 hour 37 minutes earlier.

Area forecast discussion, Apr 22, 12:10 AM EDT, 1 hour 37 minutes before
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    <section class="card" role="status" aria-live="polite">
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Apr 21, 11:27 PM EDT, 2 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA
NATIONAL WEATHER SERVICE MIAMI FL
1127 PM EDT SAT APR 21 2012

AMZ610-630-FLZ063-066>075-168-172>174-221100-
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-
1127 PM EDT SAT APR 21 2012

...TORNADO WATCH IN EFFECT FOR ALL OF SOUTH FL UNTIL 7 AM EDT SUNDAY...
...SMALL CRAFT ADVISORY IN EFFECT ALL LOCAL WATERS...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...OVERNIGHT

THUNDERSTORMS: A TORNADO WATCH IS IN EFFECT FOR ALL OF SOUTH FLORIDA
EFFECTIVE UNTIL 7 AM EDT SUNDAY. THE THUNDERSTORM RISK WILL INCREASE
OVERNIGHT. ISOLATED TORNADOES, DAMAGING WINDS UP TO 70 MPH, HAIL UP
TO QUARTER SIZE, AND FREQUENT LIGHTNING WILL BE POSSIBLE WITH THE
THUNDERSTORMS. ALL INTERESTS SHOULD REMAIN WEATHER ALERT OVERNIGHT.
TURN YOUR NOAA WEATHER RADIO ON SO THAT YOU RECEIVE WEATHER ALERTS
SHOULD A WARNING BE ISSUED FOR YOUR AREA, THEN YOU CAN TAKE PROTECTIVE
ACTION.

TORNADOES: ISOLATED TORNADOES ARE POSSIBLE OVERNIGHT. A TORNADO
WATCH IS IN EFFECT UNTIL 7 AM SUNDAY. STORMS WILL BE FAST MOVING,
AND TORNADOES ARE ESPECIALLY DANGEROUS AT NIGHT, SO STAY WEATHER
ALERT.

WATERSPOUTS: ISOLATED WATERSPOUTS ARE POSSIBLE ACROSS THE WATERS
THROUGHOUT THE NIGHT.

WIND: DAMAGING WIND GUSTS UP TO 70 MPH WILL BE POSSIBLE OVERNIGHT.

HAIL: HAIL UP TO QUARTER SIZE WILL BE POSSIBLE OVERNIGHT.

RIP CURRENTS: STRONG ONSHORE FLOW WILL RESULT IN A HIGH RISK OF
RIP CURRENTS AT THE GULF BEACHES. SOUTH SOUTHEASTERLY FLOW WILL
ALSO RESULT IN A MODERATE RISK OF RIP CURRENTS AT THE ATLANTIC
BEACHES THROUGH THIS EVENING.

FLOODING: THERE IS A LOW RISK FOR MINOR URBAN TYPE FLOODING TONIGHT
AS ANY SHOWERS OR THUNDERSTORMS WILL BE FAST MOVING.

WAVES: SEAS WILL BUILD TO 7 TO 8 FEET IN THE GULF STREAM AND OFFSHORE
GULF WATERS AFTER MIDNIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE EARLY SUNDAY MORNING
BEFORE CONDITIONS RAPIDLY IMPROVE.

HAZARDOUS MARINE CONDITIONS WILL CONTINUE SUNDAY THROUGH MONDAY
MORNING, ESPECIALLY ACROSS THE OFFSHORE GULF WATERS AND IN THE
GULF STREAM.

WATER LEVELS MAY REACH BETWEEN 1 AND 2 FEET ABOVE REGULAR HIGH TIDE
ALONG THE GULF COAST. HOWEVER, SIGNIFICANT FLOODING IS NOT EXPECTED.

A HIGH RISK OF RIP CURRENTS WILL CONTINUE THROUGH MONDAY MORNING
FOR THE GULF COAST BEACHES BEHIND A STRONG COLD FRONT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED OVERNIGHT THROUGH EARLY SUNDAY
MORNING. PLEASE REPORT ANY SEVERE WEATHER OR 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.

GREGORIA

In the hours before

Special weather statement, Apr 22, 12:16 AM EDT, 1 hour 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1216 AM EDT SUN APR 22 2012

FLZ067-068-072>074-168-172>174-220530-
COASTAL BROWARD COUNTY FL COASTAL MIAMI DADE COUNTY FL COASTAL PALM
BEACH COUNTY FL FAR SOUTH MIAMI-DADE COUNTY FL INLAND MIAMI-DADE
COUNTY FL INLAND PALM BEACH COUNTY FL METRO BROWARD COUNTY FL METRO
PALM BEACH COUNTY FL METROPOLITAN MIAMI DADE FL
1216 AM EDT SUN APR 22 2012

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SIGNIFICANT WEATHER ADVISORY FOR...
  EASTERN BROWARD COUNTY
  EASTERN MIAMI-DADE COUNTY
  EASTERN PALM BEACH COUNTY

* UNTIL 130 AM EDT

* AT 1210 AM EDT...SHOWERS WILL CONTINUE TO FORM ALONG THE ATLANTIC
COAST METRO AREAS WHICH ARE DEVELOPING IN AN ENVIRONMENT FAVORABLE
FOR FUNNEL CLOUDS. RESIDENTS SHOULD EXERCISE CAUTION OVER THE NEXT
SEVERAL HOURS.

* THE STORM WILL AFFECT...
  ATLANTIC COAST METRO AREAS

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM EDT SUNDAY MORNING FOR
SOUTHERN FLORIDA.

LAT...LON 2580 8011 2567 8015 2566 8016 2574 8017
      2553 8032 2547 8033 2540 8032 2541 8021
      2554 8017 2533 8024 2538 8026 2526 8040
      2553 8042 2696 8020 2698 8010 2659 8003
TIME...MOT...LOC 0413Z 200DEG 21KT 2622 8009

60
Special weather statement, Apr 22, 1:47 AM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
147 AM EDT SUN APR 22 2012

FLZ063-066-069-070-220645-
COASTAL COLLIER COUNTY FL GLADES FL HENDRY FL INLAND COLLIER COUNTY
FL
147 AM EDT SUN APR 22 2012

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SIGNIFICANT WEATHER ADVISORY FOR...
  GLADES COUNTY
  WESTERN HENDRY COUNTY
  WESTERN COLLIER COUNTY

* UNTIL 245 AM EDT

* AT 144 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF SHOWERS WITH EMBEDDED THUNDERSTORMS ALONG A LINE EXTENDING
  FROM 8 MILES NORTH OF MUSE TO 4 MILES NORTH OF BONITA SPRINGS TO
  37 MILES SOUTHWEST OF CAPE ROMANO...AND MOVING EAST AT 20 MPH.

* THE LINE OF STORMS WILL AFFECT...
  MUSE...
  NAPLES...
  EAST NAPLES...
  GOLDEN GATE...
  PALMDALE...
  BELLE MEADE...
  AND SURROUNDING COMMUNITIES.

THE PRIMARY IMPACTS WILL BE GUSTY WINDS OF 45 TO 55 MPH. THESE WINDS
CAN DOWN SMALL TREE LIMBS AND BRANCHES...AND BLOW AROUND UNSECURED
SMALL OBJECTS. SEEK SHELTER IN A SAFE BUILDING UNTIL THE STORM
PASSES.

THESE SHOWERS AND STORMS WERE ALSO DEVELOPING IN AN ENVIRONMENT
FAVORABLE FOR FUNNEL CLOUDS.

RESIDENTS NEAR THE PATH OF SHOULD REMAIN ON THE ALERT FOR ADDITIONAL
STATEMENTS AND POSSIBLE WARNINGS.

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM EDT SUNDAY MORNING FOR
SOUTHERN FLORIDA.

LAT...LON 2632 8167 2642 8167 2643 8157 2704 8156
      2706 8092 2703 8094 2705 8098 2698 8107
      2692 8107 2692 8110 2685 8109 2682 8098
      2644 8110 2586 8138 2590 8172 2609 8181
      2633 8185
TIME...MOT...LOC 0546Z 255DEG 18KT 2694 8153 2640 8177
          2559 8220

BAXTER

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 22, 12:16 AM EDTSpecial Weather StatementMFLBroward74 min
Apr 22, 1:22 AM EDTSpecial Marine WarningMFL53 min
Apr 22, 1:58 AM EDTSevere Thunderstorm WarningMFLGlades32 min
Apr 22, 2:12 AM EDTSpecial Marine WarningMFL63 min
Apr 22, 2:18 AM EDTSevere Thunderstorm WarningMFLGlades42 min
Apr 22, 2:26 AM EDTSpecial Marine WarningMFL64 min
Apr 22, 2:46 AM EDTSpecial Weather StatementMFLCollier, Glades, Hendry59 min
Apr 22, 2:57 AM EDTSevere Thunderstorm WarningMFLGlades33 min
Apr 22, 3:13 AM EDTSpecial Marine WarningMFL62 min
Apr 22, 3:22 AM EDTSpecial Marine WarningMFL38 min
Apr 22, 3:43 AM EDTSpecial Weather StatementMFLHendry62 min
Apr 22, 4:35 AM EDTSpecial Weather StatementMFLBroward, Miami-Dade, Palm Beach55 min
Apr 22, 4:49 AM EDTWind AdvisoryMFLBroward, Collier, Miami-Dade, Monroe12 hr
Apr 22, 5:02 AM EDTSpecial Marine WarningMFL106 min
Apr 22, 5:26 AM EDTSpecial Weather StatementMFLMiami-Dade49 min
Apr 22, 12:00 PM EDTSpecial Marine WarningMFL60 min
Apr 22, 12:41 PM EDTSevere Thunderstorm WarningMFLBroward, Miami-Dade35 min
Apr 22, 12:52 PM EDTSpecial Marine WarningMFL83 min
Apr 22, 1:36 PM EDTSpecial Marine WarningMFL54 min
Apr 22, 1:46 PM EDTSpecial Marine WarningMFL44 min
Apr 22, 2:12 PM EDTSpecial Marine WarningMFL63 min
Apr 22, 3:47 PM EDTSpecial Marine WarningMFL31 min

Nearby

Special Weather Statements in Florida, 2012Every 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.