Alert archive / Maryland / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 92, NWS Wakefield, VA

July 2, 2015Worcester County, Maryland

NWS Wakefield, VA issued this severe thunderstorm warning at Jul 2, 2015, 11:51 AM EDT for Worcester County, Maryland. It was in force for 24 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 2, 2015, 11:51 AM EDT (15:51 UTC)
Expired
Jul 2, 2015, 12:15 PM EDT
In force
24 min
Issued by
NWS Wakefield, VA
Area
Storm-based polygon

County Worcester County, MD

The radar

The Dover AFB radar (KDOX), 69 km from the middle of the area, began a volume at 15:55 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, 3.9 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.

Skew-T log-pSkew-T log-p diagram, Wallops Is Stn, VA at 12:00Z on 2015-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1286 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 2015-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
1286 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
859 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
123 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.9

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 Jul 2, 11:43 AM EDT, 8 minutes earlier.

Area forecast discussion, Jul 2, 11:43 AM EDT, 8 minutes before
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Hazardous weather outlook, Jul 2, 3:45 AM EDT, 8 hours 6 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WAKEFIELD VA
345 AM EDT THU JUL 2 2015

MDZ021>025-NCZ012>017-030>032-102-VAZ048-060>062-064>069-075>090-092-
093-095>100-509>525-030745-
DORCHESTER-WICOMICO-SOMERSET-INLAND WORCESTER-MARYLAND BEACHES-
NORTHAMPTON NC-HERTFORD-GATES-PASQUOTANK-CAMDEN-INLAND CURRITUCK-
BERTIE-CHOWAN-PERQUIMANS-OUTER BANKS 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-NORTHAMPTON VA-WESTERN LOUISA-EASTERN LOUISA-
WESTERN HANOVER-EASTERN HANOVER-WESTERN CHESTERFIELD-
EASTERN CHESTERFIELD-WESTERN HENRICO-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-
345 AM EDT THU JUL 2 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE LOWER EASTERN SHORE OF
MARYLAND...COASTAL NORTHEAST NORTH CAROLINA...INTERIOR NORTHEAST
NORTH CAROLINA...THE NORTHERN OUTER BANKS OF NORTH
CAROLINA...CENTRAL VIRGINIA...EAST CENTRAL VIRGINIA...INTERIOR
SOUTHEAST VIRGINIA...SOUTH CENTRAL VIRGINIA...SOUTH HAMPTON ROADS
VIRGINIA...THE EASTERN SHORE OF VIRGINIA...THE MIDDLE PENINSULA OF
VIRGINIA...THE NORTHERN NECK OF VIRGINIA...THE PENINSULA OF
SOUTHEAST VIRGINIA AND THE PIEDMONT OF CENTRAL VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

SHOWERS AND THUNDERSTORMS WILL BRING MODERATE TO HEAVY RAIN ACROSS
THE REGION LATE TODAY AND TONIGHT...WITH MINOR FLOODING POSSIBLE
IN SOME AREAS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

SHOWERS AND THUNDERSTORMS ARE EXPECTED AGAIN FRIDAY INTO FRIDAY
NIGHT...WHICH MAY PRODUCE MINOR FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jul 2, 10:30 AM EDT, 1 hour 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
1030 AM EDT THU JUL 2 2015

MDZ021-022-021500-
DORCHESTER-WICOMICO-DORCHESTER-
1030 AM EDT THU JUL 2 2015

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN
DORCHESTER AND NORTHWESTERN WICOMICO COUNTIES...

AT 1029 AM EDT...AN AREA OF STRONG THUNDERSTORMS WAS 9 MILES
SOUTHWEST OF VIENNA...OR 10 MILES SOUTHEAST OF CAMBRIDGE...MOVING
NORTHEAST AT 35 MPH.

WIND GUSTS OF 30 TO 40 MPH ARE POSSIBLE WITH THESE STORMS.

AROUND 1 INCH OF RAINFALL ARE POSSIBLE WITH THESE STORMS.

THIS STORM WILL BE NEAR...
  VIENNA AROUND 1045 AM EDT.
  HEBRON AROUND 1055 AM EDT.
  SHARPTOWN AROUND 1100 AM EDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE ELDORADO...MARDELA
SPRINGS...BUCKTOWN...GALESTOWN...LINKWOOD AND BROOKVIEW.

BRIEF...BUT TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND
MAY CAUSE LOCALIZED FLOODING.  IF THE ROAD AHEAD OF YOU IS
FLOODED...TURN AROUND. DRIVING THROUGH FLOODED ROADS IS DANGEROUS
AND POTENTIALLY LIFE THREATENING.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. IF YOU HEAR
THUNDER...SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE.

LAT...LON 3864 7571 3846 7569 3845 7556 3833 7596
      3836 7597 3838 7601 3833 7602 3832 7604
      3847 7613 3868 7576
TIME...MOT...LOC 1429Z 244DEG 29KT 3843 7599

LBROWN
Special weather statement, Jul 2, 11:07 AM EDT, 44 minutes before
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Special weather statement, Jul 2, 11:43 AM EDT, 8 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 11:42 AM EDTSpecial Marine WarningAKQ63 min
Jul 2, 3:37 PM EDTSpecial Marine WarningAKQ38 min
Jul 2, 4:00 PM EDTSpecial Weather StatementAKQCharles City, Gloucester, James City, Mathews30 min
Jul 2, 4:08 PM EDTSpecial Marine WarningAKQ67 min
Jul 2, 4:48 PM EDTSpecial Weather StatementAKQCharles City, Prince George, City of Hopewell42 min
Jul 2, 4:54 PM EDTSpecial Weather StatementAKQCity of Hampton, City of Newport News51 min
Jul 2, 5:32 PM EDTSpecial Weather StatementAKQCharles City28 min
Jul 2, 5:35 PM EDTSpecial Weather StatementAKQIsle of Wight, York, City of Hampton, City of Newport News40 min
Jul 2, 5:45 PM EDTAreal Flood AdvisoryAKQCharles City60 min
Jul 2, 6:06 PM EDTSpecial Weather StatementAKQSouthampton, City of Franklin39 min
Jul 2, 6:21 PM EDTSpecial Weather StatementAKQIsle of Wight, City of Chesapeake, City of Franklin, City of Hampton, City of Newport News, City of Norfolk and 3 more39 min
Jul 2, 7:01 PM EDTSpecial Weather StatementAKQCity of Chesapeake, City of Norfolk, City of Portsmouth, City of Suffolk, City of Virginia Beach59 min
Jul 2, 3:25 PM EDTSpecial Weather StatementAKQCamden50 min
Jul 2, 5:19 AM EDTSpecial Weather StatementAKQDorchester41 min
Jul 2, 10:30 AM EDTSpecial Weather StatementAKQDorchester30 min
Jul 2, 11:07 AM EDTSpecial Weather StatementAKQWicomico38 min
Jul 2, 11:43 AM EDTSpecial Weather StatementAKQWorcester32 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2015Every severe thunderstorm warning in 2015

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.