Alert archive / Virginia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 42, NWS Wakefield, VA

May 14, 2018Fluvanna County, Goochland County, Louisa County, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at May 14, 2018, 6:18 PM EDT for Fluvanna County, Goochland County, Louisa County, Virginia. It was in force for 42 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
May 14, 2018, 6:18 PM EDT (22:18 UTC)
Expired
May 14, 2018, 7:00 PM EDT
In force
42 min
Issued by
NWS Wakefield, VA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Fluvanna County, VA, Goochland County, VA, Louisa County, VA

The radar

The Norfolk radar (KAKQ), 133 km from the middle of the area, began a volume at 22:18 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 14, 6:11 PM EDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 10.3 hours before the alert went out and 135 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2018-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2018-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 138 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
828 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
138 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 May 14, 3:53 PM EDT, 2 hours 25 minutes earlier.

Area forecast discussion, May 14, 3:53 PM EDT, 2 hours 25 minutes before
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Hazardous weather outlook, May 14, 6:18 PM EDT, 0 minutes before
Hazardous Weather Outlook
National Weather Service Wakefield VA
618 PM EDT Mon May 14 2018

MDZ021>025-VAZ048-060>062-064>069-075>090-092-093-095>100-509>525-
152230-
Dorchester-Wicomico-Somerset-Inland Worcester-Maryland Beaches-
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-Northampton-
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-
618 PM EDT Mon May 14 2018

...SEVERE THUNDERSTORM WATCH 92 IN EFFECT UNTIL 1 AM EDT TUESDAY...

This Hazardous Weather Outlook is for southeast Maryland, central
Virginia, east central Virginia, eastern Virginia, north central
Virginia, south central Virginia and southeast Virginia.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Severe Thunderstorm Watch.

An area of showers and thunderstorms is expected to move across the
region later this evening. Some of the storms will have the potential
to produce large hail and damaging winds of 60 mph or greater.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Increasing chances for showers and thunderstorms are anticipated
from Wednesday through the end of the week. Although severe weather
is currently not anticipated, the potential exists for locally heavy
rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

NCZ012>017-030>032-102-152230-
Northampton-Hertford-Gates-Pasquotank-Camden-Western Currituck-
Bertie-Chowan-Perquimans-Eastern Currituck-
618 PM EDT Mon May 14 2018

This Hazardous Weather Outlook is for northeast North Carolina.

.DAY ONE...Tonight.

A shower or thunderstorm will be possible this evening, with the
potential for gusty winds and small hail in the strongest
thunderstorms.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Increasing chances for showers and thunderstorms are anticipated
from Wednesday through the end of the week. Although severe weather
is currently not anticipated, the potential exists for locally heavy
rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 14, 12:19 AM EDTMarine Dense Fog AdvisoryAKQ7 hr
May 14, 3:41 PM EDTSmall Craft AdvisoryAKQ30 hr
May 14, 7:02 PM EDTSevere Thunderstorm WarningAKQCaroline, Fluvanna, Goochland, Hanover, Louisa43 min
May 14, 7:10 PM EDTSevere Thunderstorm WarningAKQCaroline, Essex, King and Queen, Richmond, Westmoreland35 min
May 14, 7:30 PM EDTSevere Thunderstorm WarningAKQAmelia, Caroline, Chesterfield, Cumberland, Essex, Goochland and 7 more45 min
May 14, 7:33 PM EDTSevere Thunderstorm WarningAKQEssex, Westmoreland27 min
May 14, 7:43 PM EDTSevere Thunderstorm WarningAKQEssex, Lancaster, Middlesex, Northumberland, Richmond, Westmoreland47 min
May 14, 7:47 PM EDTSevere Thunderstorm WarningAKQCharles City, Chesterfield, Dinwiddie, Essex, Gloucester, Hanover and 13 more43 min
May 14, 7:52 PM EDTSpecial Marine WarningAKQ113 min
May 13, 11:03 PM EDTSpecial Weather StatementAKQDorchester27 min
May 13, 11:19 PM EDTSevere Thunderstorm WarningAKQDorchester26 min
May 14, 2:12 AM EDTSpecial Weather StatementAKQWicomico, Worcester63 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2018Every severe thunderstorm warning in 2018

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.