Alert archive / Maryland / Special Weather Statements in 2014

Special Weather Statement, NWS Philadelphia/Mount Holly

October 7, 2014Caroline County, Maryland

NWS Philadelphia/Mount Holly issued this special weather statement at Oct 7, 2014, 11:53 PM EDT for Caroline County, Maryland. It was in force for 67 min. 2 reports 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
Oct 7, 2014, 11:53 PM EDT (03:53 UTC)
Expired
Oct 8, 2014, 1:00 AM EDT
In force
67 min
Issued by
NWS Philadelphia/Mount Holly

County Caroline County, MD

The radar

The Dover AFB radar (KDOX), 26 km from the middle of the area, began a volume at 03:55 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
Oct 8, 12:00 AM EDTTSTM WND DMGPreston, MDWIRES AND TREE LIMBS DOWN
Oct 8, 12:00 AM EDTTSTM WND DMGPreston, MDSEVERAL TREES DOWN....DAMAGE TO FENCES AND SOFFITS AND HEAT PUMPS BLOWN OVER IN THE MAIN STREET...HUGHLETT ROAD...TIDEWATER CIRCLE AND WILLIAMSON STREET AREA.

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

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 3.9 hours before the alert went out and 94 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 2014-10-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 96 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 2014-10-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 146 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
96 J/kg
Mixed-layer CIN
-137 J/kg
Mixed-layer LCL
1222 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
146 m²/s²
0-3 km storm-relative helicity
190 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

219 
WWUS81 KPHI 080353
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1153 PM EDT TUE OCT 7 2014

DEZ002-003-MDZ019-020-080500-
CAROLINE MD-INLAND SUSSEX DE-KENT DE-TALBOT MD-
1153 PM EDT TUE OCT 7 2014

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN SUSSEX...
SOUTHEASTERN TALBOT...SOUTHERN CAROLINE AND SOUTHERN KENT COUNTIES...

AT 1147 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM
HARMONY TO TANYARD TO TRAPPE TO CAMBRIDGE...MOVING EAST AT 35 MPH.

WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THESE STORMS. 

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

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

THESE STORMS WILL BE NEAR PRESTON...CHOPTANK...AND CHOPTANK AROUND
MIDNIGHT...ANDREWSVILLE...ANDREWSVILLE...SMITHVILLE...AND SMITHVILLE
AROUND 1210 AM...FARMINGTON...AND FEDERALSBURG AROUND 1220 AM AND
HOUSTON AROUND 1230 AM.

LAT...LON 3860 7613 3874 7605 3883 7590 3898 7538
      3899 7530 3893 7530 3893 7532 3886 7523
      3871 7531 3862 7569 3868 7576 3867 7579
      3869 7581 3870 7586 3866 7595 3860 7598
      3857 7602

$$

FORECASTER: HEAVENER

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 8, 12:51 AM EDTSpecial Marine WarningPHI54 min
Oct 8, 1:20 AM EDTSpecial Weather StatementPHIAtlantic, Ocean40 min
Oct 8, 1:27 AM EDTSpecial Marine WarningPHI63 min
Oct 8, 1:31 AM EDTSpecial Marine WarningPHI29 min
Oct 8, 1:35 AM EDTTornado WarningPHIOcean25 min
Oct 7, 9:00 PM EDTSpecial Weather StatementPHIQueen Anne's45 min
Oct 7, 9:18 PM EDTSpecial Weather StatementPHICaroline42 min
Oct 7, 11:57 PM EDTSevere Thunderstorm WarningPHICaroline, Talbot63 min
Oct 8, 12:59 AM EDTSpecial Weather StatementPHISussex31 min

Nearby

Special Weather Statements in Maryland, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.