Alert archive / Florida / Special Weather Statements in 2011
Special Weather Statement, NWS Miami, FL
NWS Miami, FL issued this special weather statement at Oct 9, 2011, 1:47 AM EDT for Broward County, Florida. It was in force for 43 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
- Oct 9, 2011, 1:47 AM EDT (05:47 UTC)
- Expired
- Oct 9, 2011, 2:30 AM EDT
- In force
- 43 min
- Issued by
- NWS Miami, FL
County Broward County, FL
The radar
The Miami radar (KAMX), 71 km from the middle of the area, began a volume at 05:47 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 00:00Z, 5.8 hours before the alert went out and 45 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.
- Mixed-layer CAPE
- 1719 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 507 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -75 m²/s²
- 0-3 km storm-relative helicity
- -6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>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 Oct 9, 1:29 AM EDT, 18 minutes earlier.
Area forecast discussion, Oct 9, 1:29 AM EDT, 18 minutes before
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HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA...UPDATED NATIONAL WEATHER SERVICE MIAMI FL 723 PM EDT SAT OCT 8 2011 FLZ063-066>075-168-172>174-091430- 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- 723 PM EDT SAT OCT 8 2011 ...FLOOD WATCH PALM BEACH, BROWARD, MIAMI DADE COUNTIES THROUGH SUNDAY EVENING... ...WIND ADVISORY PORTIONS OF PALM BEACH, BROWARD, AND MIAMI DADE COUNTIES... ...DANGEROUS RIP CURRENTS, MINOR COASTAL FLOODING, GALE WARNING, BEACH EROSION, AND ROUGH SURF ATLANTIC COAST... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...TONIGHT FLOODING... A FLOOD WATCH IS IN EFFECT FOR PALM BEACH, BROWARD, AND MIAMI DADE COUNTIES THROUGH SUNDAY EVENING, DUE TO THE POTENTIAL OF HEAVY RAINFALL LEADING TO FLOODING. EXCESSIVE RAINFALL COULD OCCUR IN ISOLATED LOCALES ACROSS THE EAST COAST METROPOLITAN AREAS, LEADING TO THE POTENTIAL OF SIGNIFICANT STREET FLOODING OR EVEN STRUCTURAL FLOODING. FLASH FLOOD WARNINGS WILL BE ISSUED SHOULD THIS THREAT MATERIALIZE. MINOR URBAN AND LOW LYING FLOODING ARE POSSIBLE ACROSS THE INTERIOR AND GULF COASTAL SECTIONS OF SOUTH FLORIDA. .COASTAL FLOOD IMPACT... MINOR COASTAL FLOODING AND BEACH EROSION ALONG THE ATLANTIC COAST DUE TO STRONG ONSHORE WINDS AND LARGE SURF WILL REMAIN POSSIBLE INTO SUNDAY. THIS POTENTIAL WILL BE GREATEST AT THE TIME OF HIGH TIDE. THE NEXT HIGH TIDE WILL BE AROUND 6 TO 8 AM EDT SUNDAY MORNING. THUNDERSTORMS... A FEW THUNDERSTORMS WILL BE CAPABLE OF PRODUCING STRONG WIND GUSTS UP TO 45 TO 55 MPH, OCCASIONAL LIGHTNING STRIKES, AND TORRENTIAL RAINFALL. TORNADOES... INCREASING LOW LEVEL WINDS WILL CONTRIBUTE TO A SMALL POTENTIAL OF AN ISOLATED BRIEF TORNADO DEVELOPING THROUGH TONIGHT. WATERSPOUTS... THERE IS A SMALL POTENTIAL OF A WATERSPOUT DEVELOPING THROUGH TONIGHT. WIND... A WIND ADVISORY IS IN EFFECT FOR THE METRO AND COASTAL PORTIONS OF PALM BEACH, BROWARD, AND MIAMI DADE COUNTIES THROUGH TONIGHT FOR FREQUENT GUSTS OF 35 TO 40 MPH. A GALE WARNING IS IN EFFECT FOR THE LOCAL ATLANTIC WATERS, INCLUDING BISCAYNE BAY. A SMALL CRAFT ADVISORY IS IN EFFECT FOR LAKE OKEECHOBEE AND THE LOCAL GULF WATERS. RIP CURRENTS AND SURF... STRONG ONSHORE WINDS AND LARGE BREAKING WAVES WILL MAINTAIN HAZARDOUS RIP CURRENTS ALONG THE ATLANTIC BEACHES THROUGH SUNDAY. SWIMMING IS NOT ADVISED. WAVES... 9 TO 12 FOOT SEAS WITH OCCASIONAL HIGHER SEAS UP TO AROUND 15 FEET WILL PERSIST OVER THE ATLANTIC WATERS. THE HIGHEST SEAS ARE EXPECTED OVER THE ADJACENT ATLANTIC WATERS EAST OF BROWARD AND PALM BEACH COUNTIES. OVER THE GULF WATERS...THE HIGHEST SEAS WILL REMAIN OVER THE OFFSHORE WATERS IN THE 6 TO 9 FOOT RANGE. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY LOCALLY HEAVY RAINFALL WILL CONTINUE TO BE POSSIBLE ACROSS SOUTH FLORIDA ON SUNDAY...ESPECIALLY ACROSS PALM BEACH, BROWARD, AND MIAMI DADE COUNTIES...SO THE FLOOD WATCH IS IN EFFECT FOR THESE LOCALES THROUGH SUNDAY EVENING. HAZARDOUS MARINE CONDITIONS WILL CONTINUE ACROSS THE LOCAL WATERS ON SUNDAY BEFORE CONDITIONS IMPROVE. THE RIP CURRENT RISK WILL REMAIN HIGH ALONG THE ATLANTIC BEACHES ON SUNDAY. .SPOTTER INFORMATION STATEMENT... INDIVIDUAL SPOTTERS ARE ENCOURAGED TO REPORT 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.
In the hours before
Local storm report, Oct 8, 11:58 PM EDT, 1 hour 49 minutes before
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</html>Local storm report, Oct 9, 1:23 AM EDT, 24 minutes before
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</html>Special weather statement, Oct 9, 1:47 AM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 8, 8:20 PM EDT | Areal Flood Advisory | MFL | Miami-Dade | 3 hr |
| Oct 8, 11:12 PM EDT | Areal Flood Advisory | MFL | Broward, Miami-Dade | 4 hr |
| Oct 8, 11:19 PM EDT | Special Weather Statement | MFL | Broward | 26 min |
| Oct 8, 11:22 PM EDT | Severe Thunderstorm Warning | MFL | Broward | 14 min |
| Oct 9, 12:20 AM EDT | Special Weather Statement | MFL | Broward | 25 min |
| Oct 9, 12:50 AM EDT | Areal Flood Advisory | MFL | Broward, Palm Beach | 3 hr |
| Oct 9, 1:22 AM EDT | Special Weather Statement | MFL | Broward | 38 min |
| Oct 9, 4:07 PM EDT | Special Weather Statement | MFL | Miami-Dade | 23 min |
Nearby
Special Weather Statements in Florida, 2011Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.