Alert archive / North Carolina / High Surf Advisories in 2020
High Surf Advisory 5, NWS Newport/Morehead City, NC
NWS Newport/Morehead City, NC issued this high surf advisory at Apr 3, 2020, 3:26 PM EDT for Dare County, North Carolina. It took effect at Apr 4, 2020, 2:00 AM EDT. It was in force for 54 hr.
The area
The counties it named.
The facts
- Issued
- Apr 3, 2020, 3:26 PM EDT (19:26 UTC)
- In effect from
- Apr 4, 2020, 2:00 AM EDT
- Expired
- Apr 6, 2020, 8:00 AM EDT
- In force
- 54 hr
- Issued by
- NWS Newport/Morehead City, NC
County Dare County, NC
The radar
The Morehead City radar (KMHX), 150 km from the middle of the area, began a volume at 19:28 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
Wallops Is Stn, VA (KWAL), launched 12:00Z, 7.4 hours before the alert went out and 241 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1993 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 231 m²/s²
- 0-3 km storm-relative helicity
- 214 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Newport/Morehead City, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 3:26 PM EDT | Coastal Flood Advisory | MHX | Dare | 31 hr |
Nearby
High Surf Advisories in North Carolina, 2020Every high surf advisory in 2020
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.