Alert archive / Florida / High Surf Advisories in 2024

High Surf Advisory 9, NWS Melbourne, FL

October 10, 20245 counties in Florida

NWS Melbourne, FL issued this high surf advisory at Oct 10, 2024, 3:22 AM EDT for 5 counties in Florida. It took effect at Oct 10, 2024, 4:00 AM EDT. It was in force for 61 hr.

The area

The counties it named.

The facts

Issued: Oct 10, 2024, 3:22 AM EDT (07:22 UTC)
In effect from: Oct 10, 2024, 4:00 AM EDT
Expired: Oct 12, 2024, 5:00 PM EDT
In force: 61 hr
Issued by: NWS Melbourne, FL

Counties Brevard County, FL, Indian River County, FL, Martin County, FL, Saint Lucie County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 23 km from the middle of the area, began a volume at 07:26 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, 7.4 hours before the alert went out and 235 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: 1943 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 677 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 302 m²/s²
0-3 km storm-relative helicity: 310 m²/s²
Significant tornado parameter: 3.0
Supercell composite: 17.2

Open this sounding in Storm Lab

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 Melbourne, FL wrote its last area forecast discussion before this high surf advisory went out at Oct 10, 1:58 AM EDT, 1 hour 24 minutes earlier.

Area forecast discussion, Oct 10, 1:58 AM EDT, 1 hour 24 minutes before

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Hazardous weather outlook, Oct 9, 3:06 PM EDT, 12 hours 16 minutes before

Hazardous Weather Outlook
National Weather Service Melbourne FL
306 PM EDT Wed Oct 9 2024

AMZ550-552-555-570-572-575-FLZ041-044>046-053-058-141-144-154-159-
164-247-254-259-264-347-447-547-647-747-100800-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-Volusia-
Brevard County Line to Sebastian Inlet 0-20 nm-
Sebastian Inlet to Jupiter Inlet 0-20 nm-Flagler Beach to Volusia-
Brevard County Line 20-60 nm-Volusia-
Brevard County Line to Sebastian Inlet 20-60 nm-
Sebastian Inlet to Jupiter Inlet 20-60 nm-Inland Volusia-
Northern Lake-Orange-Seminole-Osceola-Okeechobee-Coastal Volusia-
Southern Lake-Coastal Indian River-Coastal Saint Lucie-
Coastal Martin-Inland Northern Brevard-Inland Indian River-
Inland Saint Lucie-Inland Martin-Mainland Northern Brevard-
Northern Brevard Barrier Islands-Inland Southern Brevard-
Mainland Southern Brevard-Southern Brevard Barrier Islands-
306 PM EDT Wed Oct 9 2024

This Hazardous Weather Outlook is for east central Florida.

.DAY ONE...This afternoon and tonight.

Please refer to the Hurricane Local Statement issued by the
National Weather Service in Melbourne for hazards associated with
Hurricane Milton at weather.gov/melbourne.

In the hours before

Local storm report, Oct 10, 1:50 AM EDT, 1 hour 32 minutes before

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Local storm report, Oct 10, 1:53 AM EDT, 1 hour 29 minutes before

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Local storm report, Oct 10, 2:08 AM EDT, 1 hour 14 minutes before

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Local storm report, Oct 10, 2:27 AM EDT, 55 minutes before

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Local storm report, Oct 10, 2:56 AM EDT, 26 minutes before

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Local storm report, Oct 10, 3:10 AM EDT, 12 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 9, 8:50 PM EDT	Special Marine Warning	MLB		85 min
Oct 9, 11:01 PM EDT	Flash Flood Warning Considerable damage threat	MLB	Lake, Orange, Osceola, Seminole, Volusia	3 hr
Oct 9, 11:14 PM EDT	River Flood Warning	MLB	Seminole	5 days
Oct 9, 11:41 PM EDT	Flash Flood Warning	MLB	Brevard, Lake, Orange, Osceola, Seminole, Volusia	6 hr
Oct 10, 12:52 AM EDT	River Flood Warning	MLB	Lake, Volusia	34 days
Oct 10, 1:34 AM EDT	Flash Flood Warning Considerable damage threat	MLB	Brevard, Lake, Orange, Seminole, Volusia	3 hr
Oct 10, 1:52 AM EDT	River Flood Warning	MLB	Seminole	33 days
Oct 10, 5:53 AM EDT	Flash Flood Warning	MLB	Brevard, Lake, Orange, Seminole, Volusia	3 hr
Oct 10, 9:01 AM EDT	Areal Flood Warning	MLB	Brevard, Lake, Orange, Osceola, Seminole, Volusia	3 hr
Oct 10, 10:03 AM EDT	River Flood Warning	MLB	Seminole	30 days
Oct 10, 10:53 AM EDT	Wind Advisory	MLB	Brevard, Indian River, Lake, Martin, Okeechobee, Orange and 4 more	9 hr
Oct 10, 2:02 PM EDT	Coastal Flood Warning	MLB	Brevard, Volusia	26 hr
Oct 10, 2:02 PM EDT	Coastal Flood Advisory	MLB	Indian River, Martin, Saint Lucie	26 hr
Oct 10, 4:48 PM EDT	Gale Warning	MLB		11 hr
Oct 10, 4:48 PM EDT	Small Craft Advisory	MLB		52 hr

Nearby

High Surf Advisories in Florida, 2024 Every high surf advisory in 2024

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.