Alert archive / Maryland / Special Weather Statements in 2011

Special Weather Statement, NWS Wakefield, VA

June 18, 2011Dorchester County, Wicomico County, Worcester County, Maryland

NWS Wakefield, VA issued this special weather statement at Jun 18, 2011, 2:13 AM EDT for Dorchester County, Wicomico County, Worcester County, Maryland. It was in force for 77 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
Jun 18, 2011, 2:13 AM EDT (06:13 UTC)
Expired
Jun 18, 2011, 3:30 AM EDT
In force
77 min
Issued by
NWS Wakefield, VA

Counties Dorchester County, MD, Wicomico County, MD, Worcester County, MD

The radar

The Dover AFB radar (KDOX), 79 km from the middle of the area, began a volume at 06:17 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, 6.2 hours before the alert went out and 44 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 00:00Z on 2011-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 801 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 00:00Z on 2011-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 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
801 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
1655 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Jun 18, 2:01 AM EDT, 12 minutes earlier.

Area forecast discussion, Jun 18, 2:01 AM EDT, 12 minutes before
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Hazardous weather outlook, Jun 17, 8:31 PM EDT, 5 hours 42 minutes before
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In the hours before

Local storm report, Jun 17, 8:18 PM EDT, 5 hours 55 minutes before
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Special weather statement, Jun 17, 9:16 PM EDT, 4 hours 57 minutes before
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Local storm report, Jun 17, 9:23 PM EDT, 4 hours 50 minutes before
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Special weather statement, Jun 18, 2:13 AM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 9:19 PM EDTSpecial Marine WarningAKQ50 min
Jun 18, 6:40 PM EDTSpecial Weather StatementAKQSouthampton35 min
Jun 18, 7:12 PM EDTSpecial Weather StatementAKQSouthampton, City of Franklin48 min
Jun 18, 7:40 PM EDTSpecial Weather StatementAKQCity of Suffolk50 min
Jun 17, 9:16 PM EDTSpecial Weather StatementAKQWorcester14 min
Jun 18, 7:28 PM EDTSpecial Weather StatementAKQSomerset47 min

Nearby

Special Weather Statements in Maryland, 2011Every special weather statement in 2011

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.