Alert archive / Maryland / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

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

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 8, 2012, 10:13 PM EDT for Caroline County, Queen Anne's County, Maryland. It was in force for 62 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, 10:13 PM EDT (02:13 UTC)
Expired
Jul 8, 2012, 11:15 PM EDT
In force
62 min
Issued by
NWS Philadelphia/Mount Holly

Counties Caroline 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 02:14 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, 2.2 hours before the alert went out and 103 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.

198 
WWUS81 KPHI 090213
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1013 PM EDT SUN JUL 8 2012

DEZ002-003-MDZ012-015-019-020-090315-
CAROLINE MD-INLAND SUSSEX DE-KENT DE-KENT MD-QUEEN ANNE'S MD-
TALBOT MD-
1013 PM EDT SUN JUL 8 2012

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

AT 1011 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
CLUSTER OF STRONG THUNDERSTORMS 11 MILES SOUTHWEST OF CENTERVILLE... 
MOVING EAST AT 20 MPH. THE THUNDERSTORMS WILL BE NEAR WYE 
MILLS...SKIPTON AROUND 1030 PM...STARR...QUEEN ANNE AROUND 1045 
PM...JUMPTOWN...RIDGELY AROUND 1100 PM AND SANDTOWN AROUND 1115 PM.

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

LAT...LON 3904 7632 3899 7627 3900 7618 3903 7625
      3909 7625 3915 7628 3913 7561 3876 7564
      3885 7622 3893 7622 3894 7624 3890 7625
      3892 7628 3885 7625 3886 7627 3889 7627
      3890 7631 3887 7633 3887 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, 9:09 PM EDTSpecial Weather StatementPHICaroline, Kent, Queen Anne's66 min
Jul 8, 9:22 PM EDTSevere Thunderstorm WarningPHICaroline, Queen Anne's, Talbot53 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.