Alert archive / Florida / High Surf Advisories in 2021
High Surf Advisory 1, NWS Melbourne, FL
NWS Melbourne, FL issued this high surf advisory at Mar 7, 2021, 3:03 PM EST for Volusia County, Florida. It was in force for 28 hr.
The area
The counties it named.
The facts
- Issued
- Mar 7, 2021, 3:03 PM EST (20:03 UTC)
- Expired
- Mar 8, 2021, 7:00 PM EST
- In force
- 28 hr
- Issued by
- NWS Melbourne, FL
County Volusia County, FL
The radar
The Melbourne radar (KMLB), 116 km from the middle of the area, began a volume at 20:06 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 12:00Z, 8.1 hours before the alert went out and 91 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
- 2 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 758 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
396 WHUS42 KMLB 072003 CFWMLB Coastal Hazard Message National Weather Service Melbourne FL 303 PM EST Sun Mar 7 2021 FLZ047-054-059-064-141-147-080000- /O.NEW.KMLB.SU.Y.0001.210307T2003Z-210309T0000Z/ /O.CON.KMLB.BH.S.0010.000000T0000Z-210308T0000Z/ Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia- Northern Brevard- 303 PM EST Sun Mar 7 2021 ...HIGH SURF ADVISORY IN EFFECT UNTIL 7 PM EST MONDAY... ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...For the High Surf Advisory, large breaking waves of 4 to 8 feet in the surf zone. For the Beach Hazards Statement, strong southward flowing longshore current and a moderate threat for rip currents for the remainder of this afternoon. * WHERE...Southern Brevard, Indian River, St. Lucie, Martin, Coastal Volusia and Northern Brevard Counties. * WHEN...For the High Surf Advisory, until 7 PM EST Monday. For the Beach Hazards Statement, until 7 PM EST this evening. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. PRECAUTIONARY/PREPAREDNESS ACTIONS... High surf will affect the beaches in the advisory area, producing localized beach erosion and dangerous swimming conditions. Swimmers should remain out of the water due to large breaking waves and dangerous surf conditions. && $$
3 follow-up statements
338 WHUS42 KMLB 080831 CFWMLB Coastal Hazard Message National Weather Service Melbourne FL 331 AM EST Mon Mar 8 2021 FLZ047-054-059-064-141-147-090000- /O.NEW.KMLB.RP.S.0010.210308T0831Z-210309T0000Z/ /O.CON.KMLB.SU.Y.0001.000000T0000Z-210309T0000Z/ Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia- Northern Brevard- 331 AM EST Mon Mar 8 2021 ...HIGH SURF ADVISORY IN EFFECT THROUGH 7 PM THIS EVENING... ...HIGH RIP CURRENT RISK IN EFFECT THROUGH 7 PM THIS EVENING... * WHAT...For the High Surf Advisory, large breaking waves of 5 to 7 feet in the surf zone. For the High Rip Current Risk, numerous strong and dangerous rip currents. * WHERE...Southern Brevard, Indian River, St. Lucie, Martin, Coastal Volusia and Northern Brevard Counties. * WHEN...Through 7 PM this evening. * IMPACTS...Dangerous swimming and surfing conditions along with local beach erosion around the times of high tide at 4 AM this morning and again around 4 PM this afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... High surf will affect the beaches in the advisory area, producing localized beach erosion and dangerous swimming conditions. Swimmers should remain out of the water due to large breaking waves and dangerous surf conditions, which could knock you down, and make you even more susceptible to being swept away from the coast by a rip current. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in the sandbar and in the vicinity of structures such as jetties and piers. Heed the advice of lifeguards, beach patrol flags and signs. && $$
733 WHUS42 KMLB 082107 CFWMLB Coastal Hazard Message National Weather Service Melbourne FL 407 PM EST Mon Mar 8 2021 FLZ047-054-059-064-141-147-090400- /O.NEW.KMLB.BH.S.0011.210309T0000Z-210310T0000Z/ /O.EXT.KMLB.RP.S.0010.000000T0000Z-210310T0000Z/ /O.CON.KMLB.SU.Y.0001.000000T0000Z-210309T0000Z/ Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia- Northern Brevard- 407 PM EST Mon Mar 8 2021 ...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH TUESDAY EVENING... ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... ...BEACH HAZARDS STATEMENT IN EFFECT FROM 7 PM EST THIS EVENING THROUGH TUESDAY EVENING... * WHAT...For the High Surf Advisory, large breaking waves of 4 to 5 feet in the surf zone. For the High Rip Current Risk, numerous strong and dangerous rip currents. For the Beach Hazards Statement, rough surf will maintain dangerous conditions in the surf zone. * WHERE...Southern Brevard, Indian River, St. Lucie, Martin, Coastal Volusia and Northern Brevard Counties. * WHEN...For the High Surf Advisory, until 7 PM EST this evening. For the High Rip Current Risk, through Tuesday evening. For the Beach Hazards Statement, from 7 PM EST this evening through Tuesday evening. * IMPACTS...Dangerous swimming and surfing conditions and localized minor beach erosion will be possible. Rip currents can sweep even the best swimmers away from shore into deeper water. Entering the ocean is not recommended due to the combination of rough surf and strong rip currents. PRECAUTIONARY/PREPAREDNESS ACTIONS... Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in the sandbar and in the vicinity of structures such as jetties and piers. Heed the advice of lifeguards, beach patrol flags and signs. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help. && $$
906 WHUS42 KMLB 090003 CFWMLB Coastal Hazard Message National Weather Service Melbourne FL 703 PM EST Mon Mar 8 2021 FLZ047-054-059-064-141-147-100000- /O.EXP.KMLB.SU.Y.0001.000000T0000Z-210309T0000Z/ /O.CON.KMLB.BH.S.0011.000000T0000Z-210310T0000Z/ /O.CON.KMLB.RP.S.0010.000000T0000Z-210310T0000Z/ Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia- Northern Brevard- 703 PM EST Mon Mar 8 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH TUESDAY EVENING... ...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH TUESDAY EVENING... ...HIGH SURF ADVISORY HAS EXPIRED... * WHAT...For the High Rip Current Risk, dangerous rip currents. For the Beach Hazards Statement, rough surf will remain a hazard in the surf zone through Tuesday. * WHERE...Southern Brevard, Indian River, St. Lucie, Martin, Coastal Volusia and Northern Brevard Counties. * WHEN...For the High Rip Current Risk, through Tuesday evening. For the Beach Hazards Statement, through Tuesday evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. Entering the ocean is not recommended due to the combination of rough surf and strong rip currents. PRECAUTIONARY/PREPAREDNESS ACTIONS... Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in the sandbar and in the vicinity of structures such as jetties and piers. Heed the advice of lifeguards, beach patrol flags and signs. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help. && $$ JP
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 7, 10:42 AM EST | Wind Advisory | MLB | Volusia | 7 hr |
Nearby
High Surf Advisories in Florida, 2021Every high surf advisory in 2021
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.