Alert archive / Maryland / Wind Advisories in 2021
Wind Advisory 4, NWS Wakefield, VA
NWS Wakefield, VA issued this wind advisory at Apr 29, 2021, 2:37 PM EDT for Accomack County, Northampton County, Virginia; 4 counties in Maryland. It took effect at Apr 30, 2021, 10:00 AM EDT. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Apr 29, 2021, 2:37 PM EDT (18:37 UTC)
- In effect from
- Apr 30, 2021, 10:00 AM EDT
- Expired
- May 1, 2021, 1:00 AM EDT
- In force
- 15 hr
- Issued by
- NWS Wakefield, VA
Counties Dorchester County, MD, Somerset County, MD, Wicomico County, MD, Worcester County, MD, Accomack County, VA, Northampton County, VA
The radar
The Dover AFB radar (KDOX), 93 km from the middle of the area, began a volume at 18:40 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, 6.6 hours before the alert went out and 33 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
- 3 J/kg
- Mixed-layer CIN
- -274 J/kg
- Mixed-layer LCL
- 1420 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
495 WWUS71 KAKQ 291837 NPWAKQ URGENT - WEATHER MESSAGE National Weather Service Wakefield VA 237 PM EDT Thu Apr 29 2021 MDZ021>025-VAZ099-300245- /O.NEW.KAKQ.WI.Y.0004.210430T1400Z-210501T0500Z/ Dorchester-Wicomico-Somerset-Inland Worcester-Maryland Beaches- Accomack- Including the cities of Cambridge, Salisbury, Crisfield, Princess Anne, Snow Hill, Ocean City, Chincoteague, Wallops Island, and Melfa 237 PM EDT Thu Apr 29 2021 ...WIND ADVISORY IN EFFECT FROM 10 AM FRIDAY TO 1 AM EDT SATURDAY... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Maryland, Dorchester, Wicomico, Somerset, Inland Worcester and Maryland Beaches Counties. In Virginia, Accomack County. * WHEN...From 10 AM Friday to 1 AM EDT Saturday. * 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. && $$ For more information from the National Weather Service visit https://weather.gov/akq
5 follow-up statements
240 WWUS71 KAKQ 292353 NPWAKQ URGENT - WEATHER MESSAGE National Weather Service Wakefield VA 753 PM EDT Thu Apr 29 2021 MDZ021>025-VAZ099-300800- /O.CON.KAKQ.WI.Y.0004.210430T1400Z-210501T0500Z/ Dorchester-Wicomico-Somerset-Inland Worcester-Maryland Beaches- Accomack- Including the cities of Cambridge, Salisbury, Crisfield, Princess Anne, Snow Hill, Ocean City, Chincoteague, Wallops Island, and Melfa 753 PM EDT Thu Apr 29 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM FRIDAY TO 1 AM EDT SATURDAY... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Maryland, Dorchester, Wicomico, Somerset, Inland Worcester and Maryland Beaches Counties. In Virginia, Accomack County. * WHEN...From 10 AM Friday to 1 AM EDT Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/akq
209 WWUS71 KAKQ 300715 NPWAKQ URGENT - WEATHER MESSAGE National Weather Service Wakefield VA 315 AM EDT Fri Apr 30 2021 VAZ100-301515- /O.EXA.KAKQ.WI.Y.0004.210430T1400Z-210501T0500Z/ Northampton- Including the cities of Exmore, Cape Charles, Cheapside, Fishermans Island, Kiptopeke, Kiptopeke State Park, and Plantation 315 AM EDT Fri Apr 30 2021 ...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 1 AM EDT SATURDAY... * WHAT...Northwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Northampton County. * WHEN...From 10 AM this morning to 1 AM EDT Saturday. * 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. && $$ MDZ021>025-VAZ099-301515- /O.CON.KAKQ.WI.Y.0004.210430T1400Z-210501T0500Z/ Dorchester-Wicomico-Somerset-Inland Worcester-Maryland Beaches- Accomack- Including the cities of Cambridge, Salisbury, Crisfield, Princess Anne, Snow Hill, Ocean City, Chincoteague, Wallops Island, and Melfa 315 AM EDT Fri Apr 30 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 1 AM EDT SATURDAY... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Maryland, Maryland Beaches, Inland Worcester, Dorchester, Wicomico and Somerset Counties. In Virginia, Accomack County. * WHEN...From 10 AM this morning to 1 AM EDT Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/akq
682 WWUS71 KAKQ 301421 NPWAKQ URGENT - WEATHER MESSAGE National Weather Service Wakefield VA 1021 AM EDT Fri Apr 30 2021 MDZ021>025-VAZ099-100-302230- /O.CON.KAKQ.WI.Y.0004.000000T0000Z-210501T0500Z/ Dorchester-Wicomico-Somerset-Inland Worcester-Maryland Beaches- Accomack-Northampton- Including the cities of Cambridge, Salisbury, Crisfield, Princess Anne, Snow Hill, Ocean City, Chincoteague, Wallops Island, Melfa, Exmore, Cape Charles, Cheapside, Fishermans Island, Kiptopeke, Kiptopeke State Park, and Plantation 1021 AM EDT Fri Apr 30 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Maryland, Maryland Beaches, Inland Worcester, Dorchester, Wicomico and Somerset Counties. In Virginia, Accomack County. * WHEN...From 10 AM this morning to 1 AM EDT Saturday. * 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. && $$ For more information from the National Weather Service visit https://weather.gov/akq
955 WWUS71 KAKQ 301936 NPWAKQ URGENT - WEATHER MESSAGE National Weather Service Wakefield VA 336 PM EDT Fri Apr 30 2021 MDZ021>025-VAZ099-100-010345- /O.CON.KAKQ.WI.Y.0004.000000T0000Z-210501T0500Z/ Dorchester-Wicomico-Somerset-Inland Worcester-Maryland Beaches- Accomack-Northampton- Including the cities of Cambridge, Salisbury, Crisfield, Princess Anne, Snow Hill, Ocean City, Chincoteague, Wallops Island, Melfa, Exmore, Cape Charles, Cheapside, Fishermans Island, Kiptopeke, Kiptopeke State Park, and Plantation 336 PM EDT Fri Apr 30 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Maryland, Maryland Beaches, Inland Worcester, Dorchester, Wicomico and Somerset Counties. In Virginia, Accomack County. * WHEN...From 10 AM this morning to 1 AM EDT Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/akq
190 WWUS71 KAKQ 010122 NPWAKQ URGENT - WEATHER MESSAGE National Weather Service Wakefield VA 922 PM EDT Fri Apr 30 2021 MDZ021>025-VAZ099-100-010500- /O.CON.KAKQ.WI.Y.0004.000000T0000Z-210501T0500Z/ Dorchester-Wicomico-Somerset-Inland Worcester-Maryland Beaches- Accomack-Northampton- Including the cities of Cambridge, Salisbury, Crisfield, Princess Anne, Snow Hill, Ocean City, Chincoteague, Wallops Island, Melfa, Exmore, Cape Charles, Cheapside, Fishermans Island, Kiptopeke, Kiptopeke State Park, and Plantation 922 PM EDT Fri Apr 30 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Maryland, Maryland Beaches, Inland Worcester, Dorchester, Wicomico and Somerset Counties. In Virginia, Accomack County. * WHEN...From 10 AM this morning to 1 AM EDT Saturday. * 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. && $$ For more information from the National Weather Service visit https://weather.gov/akq
The office that day
Everything else NWS Wakefield, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 3:12 AM EDT | Gale Watch | AKQ | 12 hr | |
| Apr 29, 2:44 PM EDT | Gale Warning | AKQ | 43 hr | |
| Apr 29, 3:09 PM EDT | Fire Weather Watch | AKQ | Accomack, Amelia, Brunswick, Caroline, Charles City, Chesterfield and 42 more | 16 hr |
Nearby
Wind Advisories in Maryland, 2021Wind Advisories in Virginia, 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.