Alert archive / Virginia / Special Weather Statements in 2017

Special Weather Statement, NWS Wakefield, VA

August 7, 2017Accomack County, Virginia

NWS Wakefield, VA issued this special weather statement at Aug 7, 2017, 8:07 AM EDT for Accomack County, Virginia. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 7, 2017, 8:07 AM EDT (12:07 UTC)
Expired
Aug 7, 2017, 8:45 AM EDT
In force
38 min
Issued by
NWS Wakefield, VA

County Accomack County, VA

The radar

The Dover AFB radar (KDOX), 121 km from the middle of the area, began a volume at 12:11 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, 0.1 hours before the alert went out and 25 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, Wallops Is Stn, VA at 12:00Z on 2017-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 57 joules per kilogram.LCLLFCEL10008507005003002001001 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, Wallops Is Stn, VA at 12:00Z on 2017-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 176 square meters per square second.19395878Sfc1 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
57 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
996 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
176 m²/s²
0-3 km storm-relative helicity
193 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 7, 4:17 AM EDT, 3 hours 50 minutes earlier.

Area forecast discussion, Aug 7, 4:17 AM EDT, 3 hours 50 minutes before
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Hazardous weather outlook, Aug 7, 3:35 AM EDT, 4 hours 32 minutes before
Hazardous Weather Outlook
National Weather Service Wakefield VA
335 AM EDT Mon Aug 7 2017

MDZ025-VAZ099-080745-
Maryland Beaches-Accomack-
335 AM EDT Mon Aug 7 2017

...MODERATE RIP CURRENT RISK IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS EVENING...
...FLASH FLOOD WATCH IN EFFECT FROM NOON EDT TODAY THROUGH TUESDAY
MORNING...

This Hazardous Weather Outlook is for southeast Maryland and
southeast Virginia.

.DAY ONE...Today and Tonight.

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

   MODERATE RIP CURRENT RISK.
   Flash Flood Watch.

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

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

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MDZ021>024-VAZ075>078-080745-
Dorchester-Wicomico-Somerset-Inland Worcester-Westmoreland-Richmond-
Northumberland-Lancaster-
335 AM EDT Mon Aug 7 2017

...FLASH FLOOD WATCH IN EFFECT FROM NOON EDT TODAY THROUGH TUESDAY
MORNING...

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

.DAY ONE...Today and Tonight.

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

   Flash Flood Watch.

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

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

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ012>017-030>032-VAZ084>090-092-093-095>097-523>525-080745-
Northampton-Hertford-Gates-Pasquotank-Camden-Western Currituck-
Bertie-Chowan-Perquimans-Gloucester-Middlesex-Mathews-Greensville-
Sussex-Surry-James City-Southampton-Isle of Wight-Norfolk/Portsmouth-
Suffolk-Chesapeake-York-Newport News-Hampton/Poquoson-
335 AM EDT Mon Aug 7 2017

This Hazardous Weather Outlook is for northeast North Carolina,
eastern Virginia and southeast Virginia.

.DAY ONE...Today and Tonight.

Scattered strong thunderstorms are possible this afternoon and
evening. The main threats are strong wind gusts and locally heavy
rain. Periods of locally heavy rain will continue through tonight.

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

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ102-VAZ098-100-080745-
Eastern Currituck-Virginia Beach-Northampton-
335 AM EDT Mon Aug 7 2017

...MODERATE RIP CURRENT RISK IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS EVENING...

This Hazardous Weather Outlook is for northeast North Carolina,
eastern Virginia and southeast Virginia.

.DAY ONE...Today and Tonight.

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

   MODERATE RIP CURRENT RISK.

Scattered strong thunderstorms are possible this afternoon and
evening. The main threats are strong wind gusts and locally heavy
rain. Periods of locally heavy rain will continue through tonight.

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

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

VAZ048-060>062-064>069-079>083-509>522-080745-
Fluvanna-Prince Edward-Cumberland-Goochland-Caroline-Mecklenburg-
Lunenburg-Nottoway-Amelia-Powhatan-Brunswick-Dinwiddie-Prince George-
Charles City-New Kent-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-
335 AM EDT Mon Aug 7 2017

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

.DAY ONE...Today and Tonight.

Periods of locally heavy rain are expected today into tonight.

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

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Aug 7, 7:14 AM EDT, 53 minutes before
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Special weather statement, Aug 7, 8:07 AM EDT, 0 minutes before
Special Weather Statement
National Weather Service Wakefield VA
807 AM EDT MON AUG 7 2017

VAZ099-071245-
Accomack-
807 AM EDT MON AUG 7 2017

...A LINE OF SHOWERS WITH HEAVY RAIN WILL AFFECT ACCOMACK COUNTY...

At 806 AM EDT, showers with heavy rain were located along a line
extending from 28 miles southeast of Snow Hill to 7 miles east of
Parksley to near Onancock. Movement was northeast at 15 mph.

Rainfall amounts of up to 1 inch are possible with these showers.

Locations impacted include...
Onancock, Parksley, Onley, Accomac, Melfa, Bloxom, Wachapreague,
Painter, Keller, Harborton, Mappsville, Wallops Island,
Temperanceville, Nelsonia, Locustville, Modest Town, Pungoteague,
Clam, Guilford and Assawoman.

Motorists should use extra caution in the vicinity of these showers.
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 3784 7532 3782 7537 3784 7542 3778 7548
      3761 7556 3756 7555 3747 7562 3744 7562
      3762 7596 3784 7581 3785 7577 3787 7578
      3799 7522
TIME...MOT...LOC 1206Z 225DEG 13KT 3786 7507 3779 7551 3770 7582

DEROSA

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 3:32 AM EDTFlash Flood WatchAKQAccomack, Lancaster, Northumberland, Richmond, Westmoreland18 hr
Aug 7, 7:14 AM EDTSpecial Weather StatementAKQAccomack61 min
Aug 7, 10:48 AM EDTSpecial Marine WarningAKQ57 min
Aug 7, 11:16 AM EDTSpecial Weather StatementAKQCity of Norfolk, City of Virginia Beach44 min
Aug 7, 11:45 AM EDTSpecial Marine WarningAKQ60 min
Aug 7, 12:26 PM EDTSpecial Marine WarningAKQ49 min
Aug 7, 12:30 PM EDTSpecial Weather StatementAKQAccomack45 min
Aug 7, 3:06 PM EDTSpecial Marine WarningAKQ54 min
Aug 7, 3:08 PM EDTSpecial Marine WarningAKQ97 min
Aug 7, 3:24 PM EDTTornado WarningAKQAccomack, Northampton36 min
Aug 7, 3:49 PM EDTSpecial Marine WarningAKQ71 min
Aug 7, 3:53 PM EDTTornado WarningAKQAccomack21 min
Aug 7, 4:14 PM EDTSpecial Marine WarningAKQ61 min
Aug 7, 4:19 PM EDTSpecial Weather StatementAKQCity of Chesapeake41 min
Aug 7, 4:23 PM EDTSpecial Weather StatementAKQEssex, Richmond, Westmoreland37 min
Aug 7, 5:00 PM EDTSpecial Marine WarningAKQ45 min
Aug 7, 5:03 PM EDTSpecial Marine WarningAKQ72 min
Aug 7, 5:22 PM EDTSpecial Weather StatementAKQNorthumberland53 min
Aug 7, 5:55 PM EDTSpecial Weather StatementAKQCity of Suffolk50 min
Aug 7, 6:16 PM EDTSpecial Weather StatementAKQIsle of Wight, York, City of Hampton, City of Newport News, City of Poquoson44 min
Aug 7, 6:18 PM EDTSpecial Marine WarningAKQ57 min
Aug 7, 6:26 PM EDTSevere Thunderstorm WarningAKQIsle of Wight, York, City of Hampton, City of Newport News, City of Poquoson30 min
Aug 7, 6:52 PM EDTSpecial Weather StatementAKQCity of Norfolk, City of Portsmouth, City of Virginia Beach38 min
Aug 7, 7:08 PM EDTSpecial Weather StatementAKQNorthampton37 min
Aug 7, 7:09 PM EDTSpecial Marine WarningAKQ81 min
Aug 7, 7:22 PM EDTSpecial Marine WarningAKQ53 min
Aug 7, 4:16 PM EDTSpecial Weather StatementAKQCurrituck29 min
Aug 7, 4:29 PM EDTSpecial Weather StatementAKQPasquotank46 min
Aug 7, 4:51 PM EDTSpecial Weather StatementAKQCurrituck39 min
Aug 7, 5:47 PM EDTSpecial Weather StatementAKQHertford43 min
Aug 7, 6:03 PM EDTSpecial Weather StatementAKQGates, Hertford42 min
Aug 7, 6:42 PM EDTSpecial Weather StatementAKQGates48 min
Aug 7, 12:25 PM EDTSpecial Weather StatementAKQSomerset50 min
Aug 7, 1:10 PM EDTSpecial Weather StatementAKQWicomico50 min
Aug 7, 1:14 PM EDTSpecial Weather StatementAKQDorchester61 min
Aug 7, 1:22 PM EDTAreal Flood AdvisoryAKQSomerset, Wicomico3 hr
Aug 7, 1:37 PM EDTSevere Thunderstorm WarningAKQWicomico53 min
Aug 7, 3:32 PM EDTSpecial Weather StatementAKQWicomico43 min
Aug 7, 4:10 PM EDTSpecial Weather StatementAKQWicomico50 min
Aug 7, 4:28 PM EDTAreal Flood AdvisoryAKQDorchester, Somerset, Wicomico3 hr
Aug 7, 4:39 PM EDTTornado WarningAKQWicomico, Worcester36 min
Aug 7, 4:53 PM EDTAreal Flood AdvisoryAKQWorcester3 hr
Aug 7, 6:03 PM EDTCoastal Flood StatementAKQDorchester, Somerset, Wicomico13 hr
Aug 7, 6:28 PM EDTSpecial Weather StatementAKQSomerset47 min
Aug 7, 6:37 PM EDTSpecial Weather StatementAKQWorcester38 min
Aug 7, 7:12 PM EDTSpecial Weather StatementAKQWorcester33 min
Aug 7, 7:15 PM EDTSpecial Weather StatementAKQWorcester30 min
Aug 7, 7:25 PM EDTSpecial Weather StatementAKQWorcester35 min

Nearby

Special Weather Statements in Virginia, 2017Every special weather statement in 2017

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.