Alert archive / Delaware / Wind Advisories in 2020
Wind Advisory 12, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this wind advisory at Oct 29, 2020, 3:16 AM EDT for Sussex County, Delaware; Cape May County, New Jersey. It took effect at Oct 29, 2020, 3:00 PM EDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Oct 29, 2020, 3:16 AM EDT (07:16 UTC)
- In effect from
- Oct 29, 2020, 3:00 PM EDT
- Expired
- Oct 29, 2020, 8:00 PM EDT
- In force
- 5 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Sussex County, DE, Cape May County, NJ
The radar
The Dover AFB radar (KDOX), 31 km from the middle of the area, began a volume at 07:16 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 00:00Z, 7.3 hours before the alert went out and 109 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
- 976 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 187 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
646 WWUS71 KPHI 290716 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 316 AM EDT Thu Oct 29 2020 DEZ004-292200- /O.NEW.KPHI.WI.Y.0012.201029T1900Z-201030T0000Z/ Delaware Beaches- Including the city of Rehoboth Beach 316 AM EDT Thu Oct 29 2020 ...WIND ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO 8 PM EDT THIS EVENING... * WHAT...South winds 20 to 30 mph with 45 to 50 mph gusts expected. * WHERE...Delaware Beaches. * WHEN...From 3 PM this afternoon to 8 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MPS
5 follow-up statements
712 WWUS71 KPHI 291258 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 858 AM EDT Thu Oct 29 2020 DEZ003-300000- /O.EXA.KPHI.WI.Y.0012.201029T1900Z-201030T0000Z/ Inland Sussex- Including the city of Georgetown 858 AM EDT Thu Oct 29 2020 ...WIND ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO 8 PM EDT THIS EVENING... * WHAT...South winds 15 to 20 mph with gusts up to 45 mph expected. * WHERE...Inland Sussex. * WHEN...From 3 PM this afternoon to 8 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ DEZ004-300000- /O.CON.KPHI.WI.Y.0012.201029T1900Z-201030T0000Z/ Delaware Beaches- Including the city of Rehoboth Beach 858 AM EDT Thu Oct 29 2020 ...WIND ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 8 PM EDT THIS EVENING... * WHAT...South winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Delaware Beaches. * WHEN...From 3 PM this afternoon to 8 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
289 WWUS71 KPHI 291747 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 147 PM EDT Thu Oct 29 2020 NJZ023-024-300000- /O.EXA.KPHI.WI.Y.0012.201029T1900Z-201030T0000Z/ Cape May-Atlantic Coastal Cape May- Including the cities of Cape May Court House and Ocean City 147 PM EDT Thu Oct 29 2020 ...WIND ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Southeast winds 30 to 40 mph with gusts up to 45 mph expected. * WHERE...Cape May and Atlantic Coastal Cape May. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ DEZ003-004-300000- /O.CON.KPHI.WI.Y.0012.201029T1900Z-201030T0000Z/ Inland Sussex-Delaware Beaches- Including the cities of Georgetown and Rehoboth Beach 147 PM EDT Thu Oct 29 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Southwest winds 30 to 40 mph with gusts up to 50 mph expected. * WHERE...Delaware Beaches and Inland Sussex. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Johnson
849 WWUS71 KPHI 291921 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 321 PM EDT Thu Oct 29 2020 DEZ003-NJZ023-300830- /O.NEW.KPHI.FZ.W.0011.201031T0600Z-201031T1300Z/ /O.CON.KPHI.WI.Y.0012.000000T0000Z-201030T0000Z/ Inland Sussex-Cape May- Including the cities of Georgetown and Cape May Court House 321 PM EDT Thu Oct 29 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 34 expected. For the Wind Advisory, southwest winds 30 to 40 mph with gusts up to 50 mph. * WHERE...In New Jersey, Cape May. In Delaware, Inland Sussex. * WHEN...For the Freeze Warning, from 2 AM to 9 AM EDT Saturday. For the Wind Advisory, until 8 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. && $$ DEZ001-002-MDZ008-012-015-019-020-NJZ012-013-015>022-027-PAZ070- 071-101-102-104-106-300830- /O.NEW.KPHI.FZ.W.0011.201031T0600Z-201031T1300Z/ New Castle-Kent-Cecil-Kent MD-Queen Annes-Talbot-Caroline- Middlesex-Western Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic- Southeastern Burlington-Delaware-Philadelphia-Western Chester- Eastern Chester-Eastern Montgomery-Lower Bucks- Including the cities of Wilmington, Dover, Elkton, Chestertown, Centreville, Easton, Denton, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 321 PM EDT Thu Oct 29 2020 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Portions of central, northern and southern New Jersey, southeast Pennsylvania, northeast Maryland and central and northern Delaware. * WHEN...From 2 AM to 9 AM EDT Saturday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ DEZ004-NJZ024-300000- /O.CON.KPHI.WI.Y.0012.000000T0000Z-201030T0000Z/ Delaware Beaches-Atlantic Coastal Cape May- Including the cities of Rehoboth Beach and Ocean City 321 PM EDT Thu Oct 29 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...South winds 30 to 40 mph with gusts up to 50 mph. * WHERE...In New Jersey, Atlantic Coastal Cape May. In Delaware, Delaware Beaches. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Johnson
235 WWUS71 KPHI 291936 CCA NPWPHI URGENT - WEATHER MESSAGE...CORRECTED National Weather Service Mount Holly NJ 336 PM EDT Thu Oct 29 2020 DEZ003-NJZ023-300830- /O.COR.KPHI.FZ.W.0011.201031T0600Z-201031T1300Z/ /O.COR.KPHI.WI.Y.0012.000000T0000Z-201030T0000Z/ Inland Sussex-Cape May- Including the cities of Georgetown and Cape May Court House 336 PM EDT Thu Oct 29 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 31 expected. For the Wind Advisory, southwest winds 30 to 40 mph with gusts up to 50 mph. * WHERE...In New Jersey, Cape May. In Delaware, Inland Sussex. * WHEN...For the Freeze Warning, from 2 AM to 9 AM EDT Saturday. For the Wind Advisory, until 8 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. && $$ DEZ001-002-MDZ008-012-015-019-020-NJZ012-013-015>022-027-PAZ070- 071-101-102-104-106-300830- /O.COR.KPHI.FZ.W.0011.201031T0600Z-201031T1300Z/ New Castle-Kent-Cecil-Kent MD-Queen Annes-Talbot-Caroline- Middlesex-Western Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic- Southeastern Burlington-Delaware-Philadelphia-Western Chester- Eastern Chester-Eastern Montgomery-Lower Bucks- Including the cities of Wilmington, Dover, Elkton, Chestertown, Centreville, Easton, Denton, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 336 PM EDT Thu Oct 29 2020 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... * WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Portions of central, northern and southern New Jersey, southeast Pennsylvania, northeast Maryland and central and northern Delaware. * WHEN...From 2 AM to 9 AM EDT Saturday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ DEZ004-NJZ024-300000- /O.CON.KPHI.WI.Y.0012.000000T0000Z-201030T0000Z/ Delaware Beaches-Atlantic Coastal Cape May- Including the cities of Rehoboth Beach and Ocean City 336 PM EDT Thu Oct 29 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...South winds 30 to 40 mph with gusts up to 50 mph. * WHERE...In New Jersey, Atlantic Coastal Cape May. In Delaware, Delaware Beaches. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Johnson
978 WWUS71 KPHI 292352 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 752 PM EDT Thu Oct 29 2020 DEZ003-NJZ023-301300- /O.EXP.KPHI.WI.Y.0012.000000T0000Z-201030T0000Z/ /O.CON.KPHI.FZ.W.0011.201031T0600Z-201031T1300Z/ Inland Sussex-Cape May- Including the cities of Georgetown and Cape May Court House 752 PM EDT Thu Oct 29 2020 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... ...WIND ADVISORY WILL EXPIRE AT 8 PM EDT THIS EVENING... * WHAT...Sub-freezing temperatures expected. * WHERE...Inland portions of Cape May County in New Jersey and Sussex County in Delaware. * WHEN...From 2 AM to 9 AM EDT Saturday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ DEZ004-NJZ024-300100- /O.EXP.KPHI.WI.Y.0012.000000T0000Z-201030T0000Z/ Delaware Beaches-Atlantic Coastal Cape May- Including the cities of Rehoboth Beach and Ocean City 752 PM EDT Thu Oct 29 2020 ...WIND ADVISORY WILL EXPIRE AT 8 PM EDT THIS EVENING... Winds have diminished below advisory criteria. Therefore, the wind advisory will be allowed to expire. $$ DEZ001-002-MDZ008-012-015-019-020-NJZ012-013-015>022-027-PAZ070- 071-101-102-104-106-301300- /O.CON.KPHI.FZ.W.0011.201031T0600Z-201031T1300Z/ New Castle-Kent-Cecil-Kent MD-Queen Annes-Talbot-Caroline- Middlesex-Western Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic- Southeastern Burlington-Delaware-Philadelphia-Western Chester- Eastern Chester-Eastern Montgomery-Lower Bucks- Including the cities of Wilmington, Dover, Elkton, Chestertown, Centreville, Easton, Denton, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 752 PM EDT Thu Oct 29 2020 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... * WHAT...Sub-freezing temperatures expected. * WHERE...Portions of central, northern and southern New Jersey, southeast Pennsylvania, northeast Maryland and central and northern Delaware. * WHEN...From 2 AM to 9 AM EDT Saturday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ CMS
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 29, 3:21 PM EDT | Freeze Warning | PHI | Kent, New Castle, Sussex | 42 hr |
| Oct 29, 3:33 PM EDT | Coastal Flood Advisory | PHI | Sussex | 21 hr |
Nearby
Wind Advisories in Delaware, 2020Wind Advisories in New Jersey, 2020Every wind 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.