Alert archive / North Carolina / Dense Fog Advisories in 2021
Dense Fog Advisory 3, NWS Newport/Morehead City, NC
NWS Newport/Morehead City, NC issued this dense fog advisory at Feb 28, 2021, 9:05 AM EST for Carteret County, Onslow County, North Carolina. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Feb 28, 2021, 9:05 AM EST (14:05 UTC)
- Expired
- Feb 28, 2021, 12:46 PM EST
- In force
- 4 hr
- Issued by
- NWS Newport/Morehead City, NC
Counties Carteret County, NC, Onslow County, NC
The radar
The Morehead City radar (KMHX), 9 km from the middle of the area, began a volume at 14:09 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
Roanoke, VA (KRNK), launched 12:00Z, 2.1 hours before the alert went out and 350 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
- 506 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 419 m²/s²
- 0-3 km storm-relative helicity
- 497 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this dense fog advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Newport/Morehead City, NC wrote its last area forecast discussion before this dense fog advisory went out at Feb 28, 7:00 AM EST, 2 hours 5 minutes earlier.
Area forecast discussion, Feb 28, 7:00 AM EST, 2 hours 5 minutes before
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</html>Hazardous weather outlook, Feb 28, 6:18 AM EST, 2 hours 47 minutes before
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</html>The office that day
Everything else NWS Newport/Morehead City, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 3:00 AM EST | Small Craft Advisory | MHX | 66 hr | |
| Feb 28, 4:30 AM EST | Dense Fog Advisory | MHX | Carteret, Craven, Duplin, Jones, Lenoir, Onslow | 5 hr |
| Feb 28, 4:30 AM EST | Marine Dense Fog Advisory | MHX | 31 hr |
Nearby
Dense Fog Advisories in North Carolina, 2021Every dense fog 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.