Alert archive / Florida / Special Weather Statements in 2013
Special Weather Statement, NWS Miami, FL
NWS Miami, FL issued this special weather statement at Apr 20, 2013, 12:37 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
- Apr 20, 2013, 12:37 PM EDT (16:37 UTC)
- Expired
- Apr 20, 2013, 1:00 PM EDT
- In force
- 23 min
- Issued by
- NWS Miami, FL
County Miami-Dade County, FL
The radar
The Miami radar (KAMX), 18 km from the middle of the area, began a volume at 16:38 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, 4.6 hours before the alert went out and 40 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
- 1124 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 825 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 21 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 Apr 20, 9:47 AM EDT, 2 hours 50 minutes earlier.
Area forecast discussion, Apr 20, 9:47 AM EDT, 2 hours 50 minutes before
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</html>Hazardous weather outlook, Apr 20, 4:18 AM EDT, 8 hours 19 minutes before
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA NATIONAL WEATHER SERVICE MIAMI FL 418 AM EDT SAT APR 20 2013 AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676- 202330- LAKE OKEECHOBEE-BISCAYNE BAY- COASTAL WATERS FROM JUPITER INLET TO DEERFIELD BEACH, FL OUT 20 NM- COASTAL WATERS FROM DEERFIELD BEACH TO OCEAN REEF, FL OUT 20 NM- WATERS FROM JUPITER INLET TO DEERFIELD BEACH, FL EXTENDING FROM 20 NM TO 60 NM- WATERS FROM DEERFIELD BEACH TO OCEAN REEF, FL EXTENDING FROM 20 NM TO THE TERRITORIAL WATERS OF THE BAHAMAS-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- COASTAL WATERS FROM CHOKOLOSKEE TO BONITA BEACH, FL OUT 20 NM- COASTAL WATERS FROM EAST CAPE SABLE TO CHOKOLOSKEE, FL OUT 20 NM- GULF WATERS FROM CHOKOLOSKEE TO BONITA BEACH, FL EXTENDING FROM 20 TO 60 NM- 418 AM EDT SAT APR 20 2013 ...SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS THIS AFTERNOON... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS: SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED BY THIS AFTERNOON. THE BEST CHANCE WILL BE NORTH OF TAMIAMI TRAIL WITH THE STRONGEST STORMS CAPABLE OF PRODUCING FREQUENT LIGHTNING STRIKES ALONG WITH BRIEF HEAVY DOWNPOURS AND GUSTY WINDS. WIND: SOME OF THE STORMS MAY PRODUCE WIND GUSTS OF 40-50 MPH. FLOODING: THE STORMS WILL CONTAIN BRIEF HEAVY DOWNPOURS AND THIS COULD LEAD TO SOME MINOR URBAN STREET FLOODING MAINLY ACROSS THE EAST COAST METROPOLITAN REGION. RIP CURRENTS: A SOUTH TO SOUTHEAST WIND OF AROUND 10 MPH ALONG THE ATLANTIC COAST AND A SOUTHWEST WIND OF 5 TO 10 MPH ALONG THE GULF COAST WILL RESULT IN A SLIGHT RISK OF RIP CURRENTS AT THE BEACHES. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY STRONG THUNDERSTORMS WILL REMAIN POSSIBLE THROUGH SUNDAY AND MONDAY AS A WEAKENING STATIONARY FRONT REMAINS OVER THE AREA. THE MAIN IMPACTS WITH ANY STORM THAT DOES DEVELOP WILL BE LIGHTNING...HAIL AND STRONG WIND GUSTS. ADDITIONALLY, ANY ACTIVITY THAT BECOMES CONCENTRATED IN ONE AREA COULD LEAD TO LOCALIZED FLOODING. .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.
In the hours before
Special weather statement, Apr 20, 12:37 PM 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 |
|---|---|---|---|---|
| Apr 20, 1:31 PM EDT | Special Weather Statement | MFL | Miami-Dade | 44 min |
| Apr 20, 1:57 PM EDT | Special Marine Warning | MFL | 63 min | |
| Apr 20, 2:40 PM EDT | Special Weather Statement | MFL | Miami-Dade | 50 min |
| Apr 20, 2:56 PM EDT | Special Marine Warning | MFL | 64 min | |
| Apr 20, 3:22 PM EDT | Special Weather Statement | MFL | Palm Beach | 38 min |
| Apr 20, 4:16 PM EDT | Special Weather Statement | MFL | Broward | 29 min |
| Apr 20, 4:36 PM EDT | Special Weather Statement | MFL | Glades | 24 min |
| Apr 20, 4:42 PM EDT | Special Marine Warning | MFL | 63 min | |
| Apr 20, 4:49 PM EDT | Special Weather Statement | MFL | Broward | 41 min |
| Apr 20, 4:57 PM EDT | Tornado Warning | MFL | Broward | 18 min |
| Apr 20, 5:06 PM EDT | Severe Thunderstorm Warning | MFL | Broward, Miami-Dade | 24 min |
| Apr 20, 5:20 PM EDT | Areal Flood Advisory | MFL | Broward | 115 min |
| Apr 20, 5:23 PM EDT | Special Marine Warning | MFL | 67 min | |
| Apr 20, 5:28 PM EDT | Special Marine Warning | MFL | 62 min | |
| Apr 20, 5:28 PM EDT | Special Weather Statement | MFL | Broward | 62 min |
| Apr 20, 6:23 PM EDT | Special Marine Warning | MFL | 67 min | |
| Apr 20, 7:19 PM EDT | Areal Flood Advisory | MFL | Collier | 116 min |
Nearby
Special Weather Statements in Florida, 2013Every special weather statement in 2013
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.