Alert archive / New Jersey / High Wind Watches in 2020
High Wind Watch 3, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this high wind watch at Dec 23, 2020, 4:11 AM EST for 5 counties in New Jersey; Sussex County, Delaware. It took effect at Dec 24, 2020, 6:00 PM EST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 23, 2020, 4:11 AM EST (09:11 UTC)
- In effect from
- Dec 24, 2020, 6:00 PM EST
- Expired
- Dec 23, 2020, 3:23 PM EST
- In force
- Issued by
- NWS Philadelphia/Mount Holly
Counties Sussex County, DE, Atlantic County, NJ, Burlington County, NJ, Cape May County, NJ, Monmouth County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 49 km from the middle of the area, began a volume at 09:15 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, 9.2 hours before the alert went out and 191 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
- 1508 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
805 WWUS71 KPHI 230911 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 411 AM EST Wed Dec 23 2020 DEZ004-NJZ014-024>026-232215- /O.NEW.KPHI.HW.A.0003.201224T2300Z-201225T1200Z/ Delaware Beaches-Eastern Monmouth-Atlantic Coastal Cape May- Coastal Atlantic-Coastal Ocean- Including the cities of Rehoboth Beach, Sandy Hook, Ocean City, Atlantic City, and Long Beach Island 411 AM EST Wed Dec 23 2020 ...HIGH WIND WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY MORNING... * WHAT...South winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...In New Jersey, Eastern Monmouth, Atlantic Coastal Cape May, Coastal Atlantic and Coastal Ocean. In Delaware, Delaware Beaches. * WHEN...From Thursday evening through Friday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Secure any outdoor holiday decorations before the strong winds arrive. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ NJZ013-020-022-023-027-232215- /O.NEW.KPHI.HW.A.0003.201224T2300Z-201225T1200Z/ Western Monmouth-Ocean-Atlantic-Cape May-Southeastern Burlington- Including the cities of Freehold, Jackson, Hammonton, Cape May Court House, and Wharton State Forest 411 AM EST Wed Dec 23 2020 ...HIGH WIND WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY MORNING... * WHAT...South winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Western Monmouth, Ocean, Atlantic, Cape May and Southeastern Burlington. * WHEN...From Thursday evening through Friday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Secure any outdoor holiday decorations before the strong winds arrive. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ Staarmann
1 follow-up statement
304 WWUS71 KPHI 232023 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 323 PM EST Wed Dec 23 2020 DEZ004-NJZ014-024>026-241100- /O.UPG.KPHI.HW.A.0003.201224T2300Z-201225T1200Z/ /O.NEW.KPHI.HW.W.0005.201224T2300Z-201225T1200Z/ Delaware Beaches-Eastern Monmouth-Atlantic Coastal Cape May- Coastal Atlantic-Coastal Ocean- Including the cities of Rehoboth Beach, Sandy Hook, Ocean City, Atlantic City, and Long Beach Island 323 PM EST Wed Dec 23 2020 ...HIGH WIND WARNING IN EFFECT FROM 6 PM THURSDAY TO 7 AM EST FRIDAY... * WHAT...South winds 30 to 40 mph with gusts up to 70 mph expected. * WHERE...In New Jersey, Eastern Monmouth, Atlantic Coastal Cape May, Coastal Atlantic and Coastal Ocean. In Delaware, Delaware Beaches. * WHEN...From 6 PM Thursday to 7 AM EST Friday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Secure any outdoor holiday decorations before the strong winds arrive. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ NJZ013-020-022-023-027-241100- /O.UPG.KPHI.HW.A.0003.201224T2300Z-201225T1200Z/ /O.NEW.KPHI.HW.W.0005.201224T2300Z-201225T1200Z/ Western Monmouth-Ocean-Atlantic-Cape May-Southeastern Burlington- Including the cities of Freehold, Jackson, Hammonton, Cape May Court House, and Wharton State Forest 323 PM EST Wed Dec 23 2020 ...HIGH WIND WARNING IN EFFECT FROM 6 PM THURSDAY TO 7 AM EST FRIDAY... * WHAT...South winds 25 to 35 mph with gusts up to 65 mph expected. * WHERE...Western Monmouth, Ocean, Atlantic, Cape May and Southeastern Burlington. * WHEN...From 6 PM Thursday to 7 AM EST Friday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Secure any outdoor holiday decorations before the strong winds arrive. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ DEZ001>003-MDZ012-015-019-020-NJZ010-012-015>019-021-PAZ070-071- 104-106-241100- /O.NEW.KPHI.WI.Y.0018.201224T2300Z-201225T1000Z/ New Castle-Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline- Somerset-Middlesex-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Cumberland-Delaware-Philadelphia- Eastern Montgomery-Lower Bucks- Including the cities of Wilmington, Dover, Georgetown, Chestertown, Centreville, Easton, Denton, Somerville, New Brunswick, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Millville, Media, Philadelphia, Norristown, Lansdale, Morrisville, and Doylestown 323 PM EST Wed Dec 23 2020 ...WIND ADVISORY IN EFFECT FROM 6 PM THURSDAY TO 5 AM EST FRIDAY... * WHAT...South winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...Portions of central, northern and southern New Jersey, southeast Pennsylvania, northeast Maryland and central, northern and southern Delaware. * WHEN...From 6 PM Thursday to 5 AM EST Friday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Secure any outdoor holiday decorations before the strong winds arrive. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MPS
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 23, 3:56 AM EST | Storm Watch | PHI | 11 hr | |
| Dec 23, 3:23 PM EST | High Wind Warning | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 3 more | 38 hr |
| Dec 23, 3:23 PM EST | Wind Advisory | PHI | Burlington, Camden, Cumberland, Gloucester, Hunterdon, Mercer and 6 more | 38 hr |
| Dec 23, 3:24 PM EST | Gale Warning | PHI | 24 hr | |
| Dec 23, 3:24 PM EST | Storm Warning | PHI | 38 hr |
Nearby
High Wind Watches in New Jersey, 2020High Wind Watches in Delaware, 2020Every high wind watch 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.