Alert archive / Virginia / Heat Advisories in 2021
Heat Advisory 1, NWS Wakefield, VA
NWS Wakefield, VA issued this heat advisory at Aug 11, 2021, 3:55 AM EDT for 39 counties in Virginia; Northampton County, North Carolina; 4 counties in Maryland. It took effect at Aug 11, 2021, 12:00 PM EDT. It was in force for 55 hr.
The area
The counties it named.
The facts
- Issued
- Aug 11, 2021, 3:55 AM EDT (07:55 UTC)
- In effect from
- Aug 11, 2021, 12:00 PM EDT
- Expired
- Aug 13, 2021, 7:00 PM EDT
- In force
- 55 hr
- Issued by
- NWS Wakefield, VA
All 44 counties
Dorchester County, MD, Somerset County, MD, Wicomico County, MD, Worcester County, MD, Northampton County, NC, Amelia County, VA, Brunswick County, VA, Caroline County, VA, Charles City County, VA, Chesterfield County, VA, City of Chesapeake, VA, City of Colonial Heights, VA, City of Emporia, VA, City of Franklin, VA, City of Hopewell, VA, City of Newport News, VA, City of Petersburg, VA, City of Poquoson, VA, City of Richmond, VA, City of Williamsburg, VA, Dinwiddie County, VA, Essex County, VA, Gloucester County, VA, Goochland County, VA, Greensville County, VA, Hanover County, VA, Henrico County, VA, James City County, VA, King and Queen County, VA, King William County, VA, Lancaster County, VA, Louisa County, VA, Middlesex County, VA, New Kent County, VA, Northumberland County, VA, Nottoway County, VA, Powhatan County, VA, Prince George County, VA, Richmond County, VA, Southampton County, VA, Surry County, VA, Sussex County, VA, Westmoreland County, VA, York County, VA
The radar
The Norfolk radar (KAKQ), 49 km from the middle of the area, began a volume at 07:56 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, 7.9 hours before the alert went out and 154 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
- 476 J/kg
- Mixed-layer CIN
- -99 J/kg
- Mixed-layer LCL
- 1128 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Wakefield, VA wrote its last area forecast discussion before this heat advisory went out at Aug 11, 3:55 AM EDT, 0 minutes earlier.
Area forecast discussion, Aug 11, 3:55 AM EDT, 0 minutes before
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</html>Hazardous weather outlook, Aug 10, 4:16 PM EDT, 11 hours 39 minutes before
Hazardous Weather Outlook National Weather Service Wakefield VA 416 PM EDT Tue Aug 10 2021 MDZ021>024-NCZ012>017-030>032-VAZ048-060>062-064>069-075>090-092-093- 095>097-509>525-112030- Dorchester-Wicomico-Somerset-Inland Worcester-Northampton-Hertford- Gates-Pasquotank-Camden-Western Currituck-Bertie-Chowan-Perquimans- Fluvanna-Prince Edward-Cumberland-Goochland-Caroline-Mecklenburg- Lunenburg-Nottoway-Amelia-Powhatan-Westmoreland-Richmond- Northumberland-Lancaster-Brunswick-Dinwiddie-Prince George- Charles City-New Kent-Gloucester-Middlesex-Mathews-Greensville- Sussex-Surry-James City-Southampton-Isle of Wight-Norfolk/Portsmouth- Suffolk-Chesapeake-Western Louisa-Eastern Louisa-Western Hanover- Eastern Hanover-Western Chesterfield- Eastern Chesterfield (Including Col. Heights)- Western Henrico (Including the City of Richmond)-Eastern Henrico- Western King William-Eastern King William-Western King and Queen- Eastern King and Queen-Western Essex-Eastern Essex-York-Newport News- Hampton/Poquoson- 416 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for southeast Maryland, northeast North Carolina, central Virginia, east central Virginia, eastern Virginia, north central Virginia, south central Virginia and southeast Virginia. .DAY ONE...Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Heat indices of 100 to 105 degrees are possible Wednesday afternoon and Friday afternoon. Heat indices around 105 degrees will be possible Thursday afternoon. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MDZ025-NCZ102-VAZ098>100-112030- Maryland Beaches-Eastern Currituck-Virginia Beach-Accomack- Northampton- 416 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for southeast Maryland, northeast North Carolina, eastern Virginia and southeast Virginia. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The office that day
Everything else NWS Wakefield, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 8:07 PM EDT | Areal Flood Advisory | AKQ | King William, New Kent | 103 min |
| Aug 10, 8:18 PM EDT | Special Weather Statement | AKQ | Brunswick, Mecklenburg | 57 min |
| Aug 11, 2:52 PM EDT | Special Weather Statement | AKQ | Louisa | 53 min |
| Aug 11, 4:02 PM EDT | Severe Thunderstorm Warning | AKQ | Louisa | 43 min |
| Aug 11, 4:08 PM EDT | Heat Advisory | AKQ | Accomack, Cumberland, Fluvanna, Louisa, Lunenburg, Mathews and 5 more | 51 hr |
| Aug 11, 4:10 PM EDT | Special Weather Statement | AKQ | Fluvanna | 50 min |
| Aug 11, 4:31 PM EDT | Areal Flood Advisory | AKQ | Louisa | 119 min |
| Aug 11, 4:42 PM EDT | Severe Thunderstorm Warning | AKQ | Fluvanna, Goochland, Louisa | 48 min |
| Aug 11, 4:53 PM EDT | Special Weather Statement | AKQ | Prince Edward | 37 min |
| Aug 11, 5:17 PM EDT | Severe Thunderstorm Warning | AKQ | Caroline, Hanover, Louisa | 43 min |
| Aug 11, 5:45 PM EDT | Special Weather Statement | AKQ | Prince Edward | 30 min |
| Aug 11, 5:56 PM EDT | Severe Thunderstorm Warning | AKQ | Caroline, Hanover, Henrico, King and Queen, King William | 49 min |
| Aug 11, 6:27 PM EDT | Special Weather Statement | AKQ | Chesterfield, Henrico, Powhatan, City of Richmond | 48 min |
| Aug 11, 6:31 PM EDT | Severe Thunderstorm Warning | AKQ | Chesterfield, Goochland, Henrico, Powhatan, City of Richmond | 44 min |
| Aug 11, 6:36 PM EDT | Special Weather Statement | AKQ | Essex, King and Queen, Richmond | 39 min |
| Aug 11, 6:41 PM EDT | Special Weather Statement | AKQ | King William, New Kent | 49 min |
| Aug 11, 7:14 PM EDT | Severe Thunderstorm Warning | AKQ | Chesterfield, Henrico, City of Richmond | 34 min |
| Aug 11, 7:17 PM EDT | Special Marine Warning | AKQ | 58 min | |
| Aug 11, 7:18 PM EDT | Special Weather Statement | AKQ | Lancaster, Middlesex, Northumberland | 42 min |
| Aug 11, 7:30 PM EDT | Areal Flood Advisory | AKQ | Chesterfield, Goochland, Henrico, Powhatan, City of Richmond | 2 hr |
| Aug 10, 8:29 PM EDT | Special Weather Statement | AKQ | Dorchester | 46 min |
| Aug 10, 9:11 PM EDT | Special Weather Statement | AKQ | Dorchester | 49 min |
Nearby
Heat Advisories in Virginia, 2021Heat Advisories in Maryland, 2021Heat Advisories in North Carolina, 2021Every heat 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.