Alert archive / Maryland / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

July 8, 2012Caroline County, Kent County, Queen Anne's County, Maryland

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 8, 2012, 9:09 PM EDT for Caroline County, Kent County, Queen Anne's County, Maryland. It was in force for 66 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 8, 2012, 9:09 PM EDT (01:09 UTC)
Expired
Jul 8, 2012, 10:15 PM EDT
In force
66 min
Issued by
NWS Philadelphia/Mount Holly

Counties Caroline County, MD, Kent County, MD, Queen Anne's County, MD

The radar

The Dover AFB radar (KDOX), 68 km from the middle of the area, began a volume at 01:10 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.

What was reported inside it

TimeReportWhereRemark
Jul 8, 10:25 PM EDTTSTM WND DMG2 W Henderson, MDA COUPLE OF TREES DOWN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 1.2 hours before the alert went out and 106 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 00:00Z on 2012-07-09Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 2012-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
0 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

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

545 
WWUS81 KPHI 090109
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
909 PM EDT SUN JUL 8 2012

DEZ002-MDZ012-015-019-020-090215-
CAROLINE MD-KENT DE-KENT MD-QUEEN ANNE'S MD-TALBOT MD-
909 PM EDT SUN JUL 8 2012

...A CLUSTER OF STRONG THUNDERSTORMS WILL AFFECT CAROLINE...KENT... 
QUEEN ANNE'S AND TALBOT COUNTIES...

AT 906 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
CLUSTER OF STRONG THUNDERSTORMS 10 MILES WEST OF 
CENTERVILLE...MOVING EAST AT 20 MPH. THE THUNDERSTORMS WILL BE NEAR 
OVERTON...QUEENSTOWN AROUND 915 PM...CENTREVILLE...CENTERVILLE 
AROUND 930 PM... CARVILLE...HOPE AROUND 945 PM...OAKLAND...OAKLAND 
AROUND 1000 PM...GOLDSBORO AND GREENSBORO AROUND 1015 PM.

WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THESE STORMS.

LAT...LON 3904 7632 3904 7629 3899 7627 3898 7620
      3900 7618 3902 7624 3909 7625 3914 7629
      3927 7623 3930 7619 3933 7619 3927 7548
      3884 7556 3891 7622 3894 7624 3893 7624
      3892 7624 3893 7637

$$

HAYES

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 8, 9:01 PM EDTSpecial Marine WarningPHI59 min
Jul 9, 5:20 AM EDTSpecial Weather StatementPHIAtlantic, Cape May, Cumberland, Salem3 hr
Jul 8, 8:30 PM EDTSpecial Weather StatementPHISussex60 min
Jul 8, 8:52 PM EDTSevere Thunderstorm WarningPHISussex53 min
Jul 8, 10:15 PM EDTSevere Thunderstorm WarningPHIKent25 min
Jul 8, 9:22 PM EDTSevere Thunderstorm WarningPHICaroline, Queen Anne's, Talbot53 min
Jul 8, 10:13 PM EDTSpecial Weather StatementPHICaroline, Queen Anne's62 min

Nearby

Special Weather Statements in Maryland, 2012Every special weather statement in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.