Alert archive / Delaware / Wind Advisories in 2021
Wind Advisory 1, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this wind advisory at Jan 30, 2021, 3:37 PM EST for Sussex County, Delaware; Cape May County, New Jersey. It took effect at Feb 1, 2021, 7:00 AM EST. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Jan 30, 2021, 3:37 PM EST (20:37 UTC)
- In effect from
- Feb 1, 2021, 7:00 AM EST
- Expired
- Feb 1, 2021, 7:00 PM EST
- In force
- 12 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 20:34 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, 8.6 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
- 1234 m above ground
- 0-6 km bulk shear
- 96 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
386 WWUS71 KPHI 302037 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 337 PM EST Sat Jan 30 2021 DEZ004-NJZ024-310945- /O.NEW.KPHI.WI.Y.0001.210201T1600Z-210202T0100Z/ Delaware Beaches-Atlantic Coastal Cape May- Including the cities of Rehoboth Beach and Ocean City 337 PM EST Sat Jan 30 2021 ...WIND ADVISORY IN EFFECT FROM 11 AM TO 8 PM EST MONDAY... * WHAT...Northeast winds 35 to 40 mph with gusts up to 50 mph expected. * WHERE...In New Jersey, Atlantic Coastal Cape May. In Delaware, Delaware Beaches. * WHEN...From 11 AM to 8 PM EST Monday. * 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. && $$
5 follow-up statements
825 WWUS71 KPHI 310834 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 334 AM EST Sun Jan 31 2021 DEZ004-NJZ024-312300- /O.CON.KPHI.WI.Y.0001.210201T1600Z-210202T0100Z/ Delaware Beaches-Atlantic Coastal Cape May- Including the cities of Rehoboth Beach and Ocean City 334 AM EST Sun Jan 31 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM EST MONDAY... * WHAT...Northeast winds 30 to 40 mph with gusts up to 50 mph expected. * WHERE...In New Jersey, Atlantic Coastal Cape May. In Delaware, Delaware Beaches. * WHEN...From 11 AM to 8 PM EST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MPS
702 WWUS71 KPHI 311949 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 249 PM EST Sun Jan 31 2021 NJZ025-026-010900- /O.NEW.KPHI.HW.W.0001.210201T1200Z-210202T0300Z/ Coastal Atlantic-Coastal Ocean- Including the cities of Atlantic City and Long Beach Island 249 PM EST Sun Jan 31 2021 ...HIGH WIND WARNING IN EFFECT FROM 7 AM TO 10 PM EST MONDAY... * WHAT...Northeast winds 35 to 45 mph with gusts up to 60 mph expected. * WHERE...Coastal Atlantic and Coastal Ocean. * WHEN...From 7 AM to 10 PM EST Monday. * IMPACTS...Damaging winds will blow down trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds will occur Monday afternoon. 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. && $$ DEZ004-NJZ024-010900- /O.EXT.KPHI.WI.Y.0001.210201T1200Z-210202T0000Z/ Delaware Beaches-Atlantic Coastal Cape May- Including the cities of Rehoboth Beach and Ocean City 249 PM EST Sun Jan 31 2021 ...WIND ADVISORY NOW IN EFFECT FROM 7 AM TO 7 PM EST MONDAY... * WHAT...North winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...In New Jersey, Atlantic Coastal Cape May. In Delaware, Delaware Beaches. * WHEN...From 7 AM to 7 PM EST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Staarmann
831 WWUS71 KPHI 010742 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 242 AM EST Mon Feb 1 2021 NJZ025-026-012200- /O.CON.KPHI.HW.W.0001.210201T1200Z-210202T0300Z/ Coastal Atlantic-Coastal Ocean- Including the cities of Atlantic City and Long Beach Island 242 AM EST Mon Feb 1 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 10 PM EST THIS EVENING... * WHAT...Northeast winds 35 to 45 mph with gusts up to 60 mph expected. * WHERE...Coastal Ocean and Coastal Atlantic. * WHEN...From 7 AM this morning to 10 PM EST this evening. * IMPACTS...Damaging winds will blow down trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds will occur this afternoon. 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. && $$ DEZ004-NJZ024-012200- /O.CON.KPHI.WI.Y.0001.210201T1200Z-210202T0000Z/ Delaware Beaches-Atlantic Coastal Cape May- Including the cities of Rehoboth Beach and Ocean City 242 AM EST Mon Feb 1 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST THIS EVENING... * WHAT...North winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In New Jersey, Atlantic Coastal Cape May. In Delaware, Delaware Beaches. * WHEN...From 7 AM this morning to 7 PM EST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Meola
824 WWUS71 KPHI 012102 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 402 PM EST Mon Feb 1 2021 NJZ025-026-020300- /O.CON.KPHI.HW.W.0001.000000T0000Z-210202T0300Z/ Coastal Atlantic-Coastal Ocean- Including the cities of Atlantic City and Long Beach Island 402 PM EST Mon Feb 1 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...North winds 30 to 40 mph with gusts up to 60 mph. * WHERE...Coastal Ocean and Coastal Atlantic. * WHEN...Until 10 PM EST this evening. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. 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. && $$ DEZ004-NJZ024-020000- /O.CON.KPHI.WI.Y.0001.000000T0000Z-210202T0000Z/ Delaware Beaches-Atlantic Coastal Cape May- Including the cities of Rehoboth Beach and Ocean City 402 PM EST Mon Feb 1 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...North winds 25 to 30 mph with gusts up to 45 mph. * WHERE...In New Jersey, Atlantic Coastal Cape May. In Delaware, Delaware Beaches. * WHEN...Until 7 PM EST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Staarmann
108 WWUS71 KPHI 012347 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 647 PM EST Mon Feb 1 2021 DEZ004-NJZ024-020100- /O.EXP.KPHI.WI.Y.0001.000000T0000Z-210202T0000Z/ Delaware Beaches-Atlantic Coastal Cape May- Including the cities of Rehoboth Beach and Ocean City 647 PM EST Mon Feb 1 2021 ...WIND ADVISORY WILL EXPIRE AT 7 PM EST THIS EVENING... Strong winds have diminished this evening, although breezy conditions will persist through Tuesday. $$ NJZ025-026-020300- /O.CON.KPHI.HW.W.0001.000000T0000Z-210202T0300Z/ Coastal Atlantic-Coastal Ocean- Including the cities of Atlantic City and Long Beach Island 647 PM EST Mon Feb 1 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...North winds 25 to 35 mph with gusts up to 50 mph. * WHERE...Coastal Ocean and Coastal Atlantic. * WHEN...Until 10 PM EST this evening. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ Staarmann
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 30, 2:13 PM EST | Coastal Flood Watch | PHI | Kent, Sussex | 24 hr |
| Jan 30, 3:44 PM EST | Winter Storm Warning | PHI | New Castle | 72 hr |
| Jan 30, 3:44 PM EST | Winter Weather Advisory | PHI | Kent, Sussex | 72 hr |
| Jan 29, 11:11 PM EST | Small Craft Advisory | PHI | 14 hr | |
| Jan 30, 3:41 AM EST | Gale Watch | PHI | 12 hr | |
| Jan 30, 3:41 AM EST | Storm Watch | PHI | 12 hr | |
| Jan 30, 3:36 PM EST | Gale Warning | PHI | 60 hr | |
| Jan 30, 3:36 PM EST | Storm Warning | PHI | 53 hr | |
| Jan 30, 3:44 PM EST | Winter Storm Watch | PHI | Sussex | 6 hr |
Nearby
Wind Advisories in Delaware, 2021Wind Advisories in New Jersey, 2021Every wind 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.