Alert archive / Delaware / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

March 28, 2012Kent County, Delaware

NWS Philadelphia/Mount Holly issued this special weather statement at Mar 28, 2012, 3:48 PM EDT for Kent County, Delaware. It was in force for 12 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
Mar 28, 2012, 3:48 PM EDT (19:48 UTC)
Expired
Mar 28, 2012, 4:00 PM EDT
In force
12 min
Issued by
NWS Philadelphia/Mount Holly

County Kent County, DE

The radar

The Dover AFB radar (KDOX), 27 km from the middle of the area, began a volume at 19:48 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.8 hours before the alert went out and 66 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, Phillips Aaf/Abe, MD at 12:00Z on 2012-03-28Temperature 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 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phillips Aaf/Abe, MD at 12:00Z on 2012-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 221 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1866 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
221 m²/s²
0-3 km storm-relative helicity
257 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

044 
WWUS81 KPHI 281948
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
348 PM EDT WED MAR 28 2012

DEZ002-MDZ015-020-282000-
CAROLINE MD-KENT DE-QUEEN ANNE'S MD-
348 PM EDT WED MAR 28 2012

...A CLUSTER OF SHOWERS AND EMBEDDED THUNDERSTORM WILL AFFECT 
CAROLINE...KENT AND QUEEN ANNE'S COUNTIES...

AT 342 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS ALONG A LINE EXTENDING FROM 16 MILES NORTHEAST OF 
CENTERVILLE TO 10 MILES NORTHEAST OF CENTERVILLE...MOVING EAST AT 60 
MPH. THE THUNDERSTORMS WILL BE NEAR KENT ACRES AROUND 355 PM AND 
RISING SUN AROUND 400 PM.

THE RISK OF A STRONG THUNDERSTORM WILL END IN MARYLAND BY 355 PM. 

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THESE STORMS...ALONG WITH 
LIGHTNING STRIKES AND BRIEF HEAVY RAIN. 

LAT...LON 3905 7590 3924 7584 3919 7540 3907 7539
      3905 7537 3895 7537 3895 7539 3894 7541

$$

FORECASTER: DRAG

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 3:59 PM EDTSpecial Weather StatementPHIKent16 min
Mar 28, 3:33 PM EDTSpecial Weather StatementPHIQueen Anne's12 min

Nearby

Special Weather Statements in Delaware, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.