Alert archive / North Carolina / Frost Advisories in 2021
Frost Advisory 5, NWS Newport/Morehead City, NC
NWS Newport/Morehead City, NC issued this frost advisory at Nov 24, 2021, 3:29 AM EST for Dare County, Hyde County, North Carolina. It took effect at Nov 24, 2021, 10:00 PM EST. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Nov 24, 2021, 3:29 AM EST (08:29 UTC)
- In effect from
- Nov 24, 2021, 10:00 PM EST
- Expired
- Nov 25, 2021, 8:00 AM EST
- In force
- 10 hr
- Issued by
- NWS Newport/Morehead City, NC
Counties Dare County, NC, Hyde County, NC
The radar
The Morehead City radar (KMHX), 123 km from the middle of the area, began a volume at 08:32 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
Newport, NC (KMHX), launched 00:00Z, 8.5 hours before the alert went out and 123 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
- 1832 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
567 WWUS72 KMHX 240829 NPWMHX URGENT - WEATHER MESSAGE National Weather Service Newport/Morehead City NC 329 AM EST Wed Nov 24 2021 NCZ196-241200- /O.CON.KMHX.FZ.W.0004.000000T0000Z-211124T1200Z/ East Carteret- Including the cities of Beaufort, Harkers Island, Sea Level, and Cedar Island 329 AM EST Wed Nov 24 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING... * WHAT...Sub-freezing temperatures as low as 30. * WHERE...East Carteret County. * WHEN...Until 7 AM EST this morning. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ NCZ203>205-242030- /O.NEW.KMHX.FR.Y.0005.211125T0300Z-211125T1200Z/ Northern Outer Banks-Ocracoke Island-Hatteras Island- Including the cities of Duck, Kitty Hawk, Kill Devil Hills, Nags Head, Manteo, Ocracoke, Rodanthe, Avon, Buxton, Frisco, and Hatteras Village 329 AM EST Wed Nov 24 2021 ...FROST ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 7 AM EST THURSDAY... * WHAT...Temperatures as low as 37 will result in frost formation. * WHERE...Northern Outer Banks, Ocracoke Island and Hatteras Island. * WHEN...From 10 PM this evening to 7 AM EST Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
2 follow-up statements
497 WWUS72 KMHX 241945 NPWMHX URGENT - WEATHER MESSAGE National Weather Service Newport/Morehead City NC 245 PM EST Wed Nov 24 2021 NCZ203>205-250745- /O.EXT.KMHX.FR.Y.0005.211125T0300Z-211125T1300Z/ Northern Outer Banks-Ocracoke Island-Hatteras Island- Including the cities of Duck, Kitty Hawk, Kill Devil Hills, Nags Head, Manteo, Ocracoke, Rodanthe, Avon, Buxton, Frisco, and Hatteras Village 245 PM EST Wed Nov 24 2021 ...FROST ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING TO 8 AM EST THURSDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Hatteras Island, Ocracoke Island and Northern Outer Banks. * WHEN...From 10 PM this evening to 8 AM EST Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
896 WWUS72 KMHX 250549 NPWMHX URGENT - WEATHER MESSAGE National Weather Service Newport/Morehead City NC 1249 AM EST Thu Nov 25 2021 NCZ203>205-251300- /O.CON.KMHX.FR.Y.0005.000000T0000Z-211125T1300Z/ Northern Outer Banks-Ocracoke Island-Hatteras Island- Including the cities of Duck, Kitty Hawk, Kill Devil Hills, Nags Head, Manteo, Ocracoke, Rodanthe, Avon, Buxton, Frisco, and Hatteras Village 1249 AM EST Thu Nov 25 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS MORNING... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Hatteras Island, Ocracoke Island and Northern Outer Banks. * WHEN...From 10 PM this evening to 8 AM EST Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
Nearby
Frost Advisories in North Carolina, 2021Every frost 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.