Alert archive / Virginia / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 101, NWS Wakefield, VA
NWS Wakefield, VA issued this severe thunderstorm warning at Jul 1, 2020, 2:57 PM EDT for Northampton County, Virginia. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 1, 2020, 2:57 PM EDT (18:57 UTC)
- Expired
- Jul 1, 2020, 4:00 PM EDT
- In force
- 63 min
- Issued by
- NWS Wakefield, VA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Northampton County, VA
The radar
The Norfolk radar (KAKQ), 102 km from the middle of the area, began a volume at 19:01 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, 7.0 hours before the alert went out and 84 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
- 706 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1227 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.4
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 1, 1:13 PM EDT, 1 hour 44 minutes earlier.
Area forecast discussion, Jul 1, 1:13 PM EDT, 1 hour 44 minutes before
AREA FORECAST DISCUSSION National Weather Service Wakefield VA 113 PM EDT Wed Jul 1 2020 .SYNOPSIS... A weak trough of low pressure will linger across the local area today, with high pressure slowly building in from the northwest Thursday and Friday. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... As of 900 AM EDT Wednesday... Bumped up pops this morning from the northern neck over to the eastern shore, as scattered showers and isolated thunderstorms continue to develop across the area. Latest hi-res guidance continues to show coverage increasing after noon today. Went with a general 40-50% pop coverage across the area for this afternoon and early evening. SPC still has much of the region in a marginal risk for severe wx, with damaging winds being the primary threat. High temperatures this afternoon in the mid to upper 80s. && .SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY/... As of 300 AM EDT Wednesday... Convection to wane this evening...otw VRB clouds/partly cloudy conditions overnight. Lows in the m-u60s...except l70s in the metro areas in SE VA. Upper level lo pres is slow to shift E Thu w/ flow aloft increasingly NNW. Will keep lo PoPs INVOF NE NC Thu (midday/afternoon)...otw expecting less convective development. Partly to mostly sunny Thu w/ NNW winds aob 10 mph. Highs in the m-u80s w/ dew points (by afternoon) avgg in the m-u60s (down a few degs F from today). Flow aloft remains NNW Thu night through Fri w/ sfc hi pres in the Midwest stretching ewd into the local area. SKC-partly cloudy w/ lows Thu night from 65-70F...except l70s in the metro areas. Highs Fri in the l90s...except u80s at the beaches. Would not rule out ISOLD/SCT tstms Fri afternoon INVOF the ern shore as a S/W tracks S from NY/wrn New England. && .LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/... As of 300 PM EDT Tuesday... At the start of the holiday weekend the upper level trough will be east of the area with an upper ridge trying to build in the west. Meanwhile, an area of low pressure begins to form in the vicinity of the FL panhandle. Most of Saturday will be dry, however there will be about a 25% chance of late afternoon and early evening thunderstorms. The low will remain over northern FL this weekend and then slowly drift E/NE early next week, resulting in enough instability over our region for diurnal convection each day from Sunday through Tuesday. Temperatures during the period will be near seasonal norms, with high temps ranging from the upper 80s to lower 90s and low temps ranging from the upper 60s to lower 70s. && .AVIATION /17Z WEDNESDAY THROUGH SUNDAY/... As of 110 PM EDT Wednesday... Scattered showers and thunderstorms this afternoon and evening will result in brief periods of flight restrictions when convection is over or near the terminals. Winds outside of convection are light and variable. Guidance is hinting at patchy fog overnight but mainly west of RIC, so for now will leave any mention of fog out. Mainly VFR on Thursday outside of a slight chance of convection in the afternoon/early evening. Drier conditions Friday, with VFR expected. && .MARINE... As of 340 AM EDT Wednesday... No headlines expected this week and into the weekend. Early this morning, weak low pressure was over the coastal Carolinas. Winds were SSW 5-10 kt, with waves 1-2 ft and seas around 2 ft over the waters. Winds will be variable 10 kt or less today through Fri night, as a couple of troughs will affect the area along with weak high pressure building into and over the region. NE or E winds 5-15 kt will affect the waters Sat aftn into Sun aftn. Waves will be 1-2 ft, and seas 2-3 ft today into Sat. && .AKQ WATCHES/WARNINGS/ADVISORIES... MD...None. NC...None. VA...None. MARINE...None. && SYNOPSIS...AJZ/JDM NEAR TERM...CMF SHORT TERM...ALB LONG TERM...CMF AVIATION...CMF MARINE...TMG
Hazardous weather outlook, Jul 1, 2:22 AM EDT, 12 hours 35 minutes before
Hazardous Weather Outlook National Weather Service Wakefield VA 222 AM EDT Wed Jul 1 2020 MDZ021>025-NCZ012>017-030>032-102-VAZ048-060>062-064>069-075>090-092- 093-095>100-509>525-020630- Dorchester-Wicomico-Somerset-Inland Worcester-Maryland Beaches- Northampton-Hertford-Gates-Pasquotank-Camden-Western Currituck- Bertie-Chowan-Perquimans-Eastern Currituck-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-Virginia Beach- Accomack-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- 222 AM EDT Wed Jul 1 2020 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...Today and tonight. Isolated to scattered thunderstorms are expected...mainly this afternoon and this evening. Primary threats from these thunderstorms will be strong gusty winds and locally heavy rainfall. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Hazardous weather is not expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Jul 1, 1:33 PM EDT, 1 hour 24 minutes before
Special Weather Statement
National Weather Service Wakefield VA
133 PM EDT Wed Jul 1 2020
VAZ076-085-518>522-011815-
Western King and Queen-Middlesex-Richmond-Eastern King
William-Western Essex-Eastern Essex-Eastern King and Queen-
133 PM EDT Wed Jul 1 2020
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL KING AND
QUEEN...NORTHWESTERN MIDDLESEX...SOUTH CENTRAL RICHMOND AND
SOUTHEASTERN ESSEX COUNTIES...
At 133 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Dunnsville to near Saint Stephens
Church. Movement was southeast at 15 mph.
Wind gusts in excess of 40 mph are possible with these storms.
Locations impacted include...
King William, Saint Stephens Church, Millers Tavern, Stevensville,
Center Cross, Dunnsville, Church View, Jamaica, Howertons, Laneview,
Nesting, Bowlers Wharf, Upright, Ino, Dragonville, Walkerton,
Montague, Biscoe, Crouch and Henley Fork.
If you see lightning or hear thunder, you are at risk! Take shelter
indoors immediately. If you cannot find shelter in a building a
vehicle provides safety from lightning.
Strong wind gusts are possible with these storms. These wind gusts
are capable of knocking down tree limbs, small or weakened trees, and
blowing around trash cans, potted plants, lawn furniture, and other
light outdoor objects.
Motorists should use extra caution in the vicinity of these storms.
Be prepared for rapid changes in weather and road conditions. Heavy
rain could cause ponding of water on roads, and possible minor
flooding of ditches and poor drainage areas.
LAT...LON 3786 7677 3781 7666 3779 7665 3778 7667
3775 7663 3767 7660 3768 7703 3770 7704
3772 7702 3772 7703 3775 7707 3777 7707
3780 7710 3781 7709 3781 7711 3787 7714
TIME...MOT...LOC 1733Z 309DEG 13KT 3782 7684 3784 7707
PocheLocal storm report, Jul 1, 2:05 PM EDT, 52 minutes before
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</html>The office that day
Everything else NWS Wakefield, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 1:48 AM EDT | Special Weather Statement | AKQ | Goochland, Powhatan | 57 min |
| Jul 1, 2:58 AM EDT | Special Weather Statement | AKQ | Fluvanna | 62 min |
| Jul 1, 11:00 AM EDT | Special Marine Warning | AKQ | 45 min | |
| Jul 1, 12:16 PM EDT | Special Weather Statement | AKQ | Accomack | 29 min |
| Jul 1, 12:44 PM EDT | Special Weather Statement | AKQ | Northumberland | 46 min |
| Jul 1, 12:47 PM EDT | Special Weather Statement | AKQ | Essex | 43 min |
| Jul 1, 12:51 PM EDT | Special Marine Warning | AKQ | 39 min | |
| Jul 1, 12:59 PM EDT | Special Marine Warning | AKQ | 61 min | |
| Jul 1, 1:12 PM EDT | Special Weather Statement | AKQ | Lancaster, Middlesex | 48 min |
| Jul 1, 1:24 PM EDT | Special Weather Statement | AKQ | Accomack | 51 min |
| Jul 1, 1:27 PM EDT | Special Marine Warning | AKQ | 63 min | |
| Jul 1, 1:33 PM EDT | Special Weather Statement | AKQ | King and Queen | 42 min |
| Jul 1, 1:37 PM EDT | Severe Thunderstorm Warning | AKQ | Accomack | 38 min |
| Jul 1, 1:55 PM EDT | Special Marine Warning | AKQ | 65 min | |
| Jul 1, 2:00 PM EDT | Severe Thunderstorm Warning | AKQ | Gloucester, Lancaster, Mathews, Middlesex | 45 min |
| Jul 1, 2:07 PM EDT | Severe Thunderstorm Warning | AKQ | Accomack | 38 min |
| Jul 1, 2:12 PM EDT | Special Marine Warning | AKQ | 63 min | |
| Jul 1, 2:15 PM EDT | Special Weather Statement | AKQ | Charles City, Henrico | 45 min |
| Jul 1, 2:20 PM EDT | Special Weather Statement | AKQ | Prince Edward | 40 min |
| Jul 1, 2:34 PM EDT | Special Marine Warning | AKQ | 56 min | |
| Jul 1, 2:51 PM EDT | Special Marine Warning | AKQ | 54 min | |
| Jul 1, 3:04 PM EDT | Special Weather Statement | AKQ | Charles City, New Kent | 41 min |
| Jul 1, 3:17 PM EDT | Severe Thunderstorm Warning | AKQ | Charles City | 43 min |
| Jul 1, 3:18 PM EDT | Special Weather Statement | AKQ | Chesterfield, Powhatan | 42 min |
| Jul 1, 3:40 PM EDT | Severe Thunderstorm Warning | AKQ | Charles City, James City, Prince George, Surry, City of Williamsburg | 30 min |
| Jul 1, 3:40 PM EDT | Severe Thunderstorm Warning | AKQ | Chesterfield, Powhatan, City of Richmond | 50 min |
| Jul 1, 3:48 PM EDT | Special Marine Warning | AKQ | 57 min | |
| Jul 1, 3:52 PM EDT | Special Weather Statement | AKQ | York | 38 min |
| Jul 1, 3:55 PM EDT | Special Marine Warning | AKQ | 65 min | |
| Jul 1, 4:01 PM EDT | Special Weather Statement | AKQ | City of Virginia Beach | 44 min |
| Jul 1, 4:03 PM EDT | Special Weather Statement | AKQ | Northampton | 42 min |
| Jul 1, 4:14 PM EDT | Special Weather Statement | AKQ | Fluvanna | 46 min |
| Jul 1, 4:16 PM EDT | Special Marine Warning | AKQ | 59 min | |
| Jul 1, 4:18 PM EDT | Severe Thunderstorm Warning | AKQ | Charles City, Chesterfield, Henrico, Prince George, City of Colonial Heights, City of Hopewell and 2 more | 42 min |
| Jul 1, 4:24 PM EDT | Areal Flood Advisory | AKQ | Chesterfield, Henrico, City of Richmond | 6 min |
| Jul 1, 4:24 PM EDT | Severe Thunderstorm Warning | AKQ | Fluvanna | 24 min |
| Jul 1, 4:26 PM EDT | Special Marine Warning | AKQ | 64 min | |
| Jul 1, 4:30 PM EDT | Flash Flood Warning | AKQ | Chesterfield, Henrico, City of Richmond | 2 hr |
| Jul 1, 4:30 PM EDT | Special Weather Statement | AKQ | York, City of Newport News | 45 min |
| Jul 1, 4:46 PM EDT | Special Marine Warning | AKQ | 59 min | |
| Jul 1, 4:53 PM EDT | Severe Thunderstorm Warning | AKQ | Isle of Wight, City of Hampton, City of Newport News | 52 min |
| Jul 1, 4:58 PM EDT | Special Marine Warning | AKQ | 49 min | |
| Jul 1, 5:00 PM EDT | Flash Flood Warning | AKQ | Chesterfield, Hanover, Henrico, City of Richmond | 117 min |
| Jul 1, 5:04 PM EDT | Special Weather Statement | AKQ | City of Norfolk, City of Virginia Beach | 41 min |
| Jul 1, 5:09 PM EDT | Special Weather Statement | AKQ | Isle of Wight, Surry, Sussex | 51 min |
| Jul 1, 5:11 PM EDT | Areal Flood Advisory | AKQ | City of Norfolk, City of Virginia Beach | 24 min |
| Jul 1, 5:29 PM EDT | Severe Thunderstorm Warning | AKQ | City of Chesapeake, City of Virginia Beach | 31 min |
| Jul 1, 5:35 PM EDT | Flash Flood Warning | AKQ | City of Norfolk, City of Virginia Beach | 2 hr |
| Jul 1, 5:35 PM EDT | Special Marine Warning | AKQ | 55 min | |
| Jul 1, 5:39 PM EDT | Special Marine Warning | AKQ | 37 min | |
| Jul 1, 5:52 PM EDT | Special Weather Statement | AKQ | City of Chesapeake, City of Virginia Beach | 53 min |
| Jul 1, 6:06 PM EDT | Special Weather Statement | AKQ | Greensville, City of Emporia | 39 min |
| Jul 1, 6:27 PM EDT | Special Marine Warning | AKQ | 63 min | |
| Jun 30, 10:24 PM EDT | Flash Flood Warning | AKQ | Hertford, Northampton | 2 hr |
| Jul 1, 4:55 PM EDT | Special Weather Statement | AKQ | Currituck | 50 min |
| Jul 1, 6:33 PM EDT | Special Weather Statement | AKQ | Gates | 42 min |
| Jul 1, 7:05 PM EDT | Special Weather Statement | AKQ | Camden, Chowan, Currituck, Pasquotank, Perquimans | 40 min |
| Jul 1, 7:25 PM EDT | Severe Thunderstorm Warning | AKQ | Bertie, Chowan, Hertford, Perquimans | 50 min |
| Jul 1, 7:46 PM EDT | Special Weather Statement | AKQ | Bertie | 44 min |
| Jul 1, 1:58 AM EDT | Special Weather Statement | AKQ | Dorchester | 62 min |
| Jul 1, 3:06 AM EDT | Special Weather Statement | AKQ | Somerset | 54 min |
| Jul 1, 5:31 AM EDT | Special Weather Statement | AKQ | Dorchester | 59 min |
| Jul 1, 9:47 AM EDT | Special Weather Statement | AKQ | Dorchester | 43 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 2020Every severe thunderstorm warning 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.