Alert archive / Maryland / Special Weather Statements in 2014

Special Weather Statement, NWS Philadelphia/Mount Holly

June 12, 2014Caroline County, Maryland; Kent County, Delaware

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 12, 2014, 2:07 AM EDT for Caroline County, Maryland; Kent County, Delaware. It was in force for 53 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 12, 2014, 2:07 AM EDT (06:07 UTC)
Expired
Jun 12, 2014, 3:00 AM EDT
In force
53 min
Issued by
NWS Philadelphia/Mount Holly

Counties Kent County, DE, Caroline County, MD

The radar

The Dover AFB radar (KDOX), 39 km from the middle of the area, began a volume at 06:10 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.

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 6.1 hours before the alert went out and 134 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 2014-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 88 joules per kilogram.LCLLFCEL10008507005003002001001 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, Wallops Is Stn, VA at 00:00Z on 2014-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.1939Sfc1 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
88 J/kg
Mixed-layer CIN
-222 J/kg
Mixed-layer LCL
598 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

723 
WWUS81 KPHI 120607
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
207 AM EDT THU JUN 12 2014

DEZ001>003-MDZ015-020-120700-
CAROLINE MD-INLAND SUSSEX DE-KENT DE-NEW CASTLE DE-QUEEN ANNE'S MD-
207 AM EDT THU JUN 12 2014

...SHOWERS WITH EMBEDDED THUNDERSTORMS AND HEAVY RAINFALL WILL 
AFFECT CAROLINE...KENT... NORTHEASTERN QUEEN ANNE'S...NORTHWESTERN 
SUSSEX AND SOUTHWESTERN NEW CASTLE COUNTIES...

AT 202 AM EDT...A CLUSTER OF SHOWERS WITH EMBEDDED THUNDERSTORMS 
AND HEAVY RAINFALL WAS NEAR GREENSBORO...MOVING NORTH AT 30 MPH.

VERY HEAVY RAIN WILL FALL FROM THESE SHOWERS...AND WILL CAUSE WATER 
TO POND ON ROADS AND FILL POOR DRAINAGE AREAS. THE RAIN CAN CAUSE 
RAPID RISES ON SMALL STREAMS AND CREEKS. 

OCCASIONAL CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS SHOWER. 
DO NOT STAY IN THE OPEN NOR SEEK SHELTER UNDER TREES WHEN LIGHTNING 
THREATENS...MOVE INDOORS WHEN A THUNDERSTORM APPROACHES. 

THIS SHOWER WILL BE NEAR GOLDSBORO AROUND 215 AM...SANDTOWN...
SANDTOWN...HENDERSON...AND FELTON AROUND 220 AM...VIOLA...AND
RIVERVIEW AROUND 225 AM...MARYDEL...TEMPLEVILLE AND WOODSIDE AROUND
230 AM.

LAT...LON 3882 7590 3884 7593 3924 7580 3925 7576
      3936 7576 3942 7575 3931 7543 3924 7539
      3921 7539 3872 7567

$$

ROBERTSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 3:56 AM EDTFlash Flood WatchPHIBurlington, Camden, Gloucester20 hr
Jun 12, 5:30 PM EDTCoastal Flood AdvisoryPHICape May, Cumberland7 hr
Jun 12, 6:33 PM EDTAreal Flood AdvisoryPHIChester4 hr
Jun 12, 12:54 AM EDTSpecial Weather StatementPHICaroline66 min
Jun 12, 1:44 AM EDTAreal Flood AdvisoryPHICaroline, Talbot4 hr
Jun 12, 12:31 PM EDTAreal Flood AdvisoryPHITalbot6 hr
Jun 12, 2:20 PM EDTAreal Flood AdvisoryPHIKent, Queen Anne's4 hr

Nearby

Special Weather Statements in Maryland, 2014Special Weather Statements in Delaware, 2014Every special weather statement in 2014

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.