Alert archive / Florida / High Surf Advisories in 2018
High Surf Advisory 1, NWS Miami, FL
NWS Miami, FL issued this high surf advisory at Jan 2, 2018, 4:40 AM EST for Broward County, Miami-Dade County, Palm Beach County, Florida. It was in force for 38 hr.
The area
The counties it named.
The facts
- Issued
- Jan 2, 2018, 4:40 AM EST (09:40 UTC)
- Expired
- Jan 3, 2018, 6:57 PM EST
- In force
- 38 hr
- Issued by
- NWS Miami, FL
Counties Broward County, FL, Miami-Dade County, FL, Palm Beach County, FL
The radar
The Miami radar (KAMX), 59 km from the middle of the area, began a volume at 09:42 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
Cape Canaveral, FL (KXMR), launched 00:00Z, 9.7 hours before the alert went out and 260 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
- 3 J/kg
- Mixed-layer CIN
- -183 J/kg
- Mixed-layer LCL
- 514 m above ground
- 0-6 km bulk shear
- 79 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 607 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this high surf advisory 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 high surf advisory went out at Jan 2, 12:54 AM EST, 3 hours 46 minutes earlier.
Area forecast discussion, Jan 2, 12:54 AM EST, 3 hours 46 minutes before
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</html>Hazardous weather outlook, Jan 1, 8:19 PM EST, 8 hours 21 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 |
|---|---|---|---|---|
| Jan 2, 4:40 AM EST | Rip Current Statement | MFL | Broward, Miami-Dade, Palm Beach | 59 hr |
Nearby
High Surf Advisories in Florida, 2018Every high surf advisory in 2018
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.