Alert archive / Delaware / Special Weather Statements in 2016

Special Weather Statement, NWS Philadelphia/Mount Holly

July 13, 2016Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 13, 2016, 4:03 PM EDT for Sussex County, Delaware. It was in force for 27 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
Jul 13, 2016, 4:03 PM EDT (20:03 UTC)
Expired
Jul 13, 2016, 4:30 PM EDT
In force
27 min
Issued by
NWS Philadelphia/Mount Holly

County Sussex County, DE

The radar

The Dover AFB radar (KDOX), 32 km from the middle of the area, began a volume at 20:06 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 12:00Z, 8.1 hours before the alert went out and 68 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 12:00Z on 2016-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 361 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 12:00Z on 2016-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
361 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
789 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

826 
WWUS81 KPHI 132003
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
403 PM EDT WED JUL 13 2016
 
DEZ003-132030-
INLAND SUSSEX-
403 PM EDT WED JUL 13 2016

...A STRONG THUNDERSTORM WILL AFFECT SOUTH CENTRAL SUSSEX COUNTY...

AT 402 PM EDT...A STRONG THUNDERSTORM WAS NEAR GUMBORO...OR 12 MILES
NORTHEAST OF SALISBURY. THE STORM WAS DRIFTING SLOWLY NORTHWARD.

WIND GUSTS UP TO 40 MPH ARE POSSIBLE WITH THIS STORM.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF SOUTHEASTERN INLAND
SUSSEX COUNTY.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 3850 7545 3861 7546 3861 7522 3848 7542
TIME...MOT...LOC 2002Z 198DEG 3KT 3850 7543 
$$

DRAG

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 2:05 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer4 hr
Jul 13, 2:44 PM EDTExcessive Heat WarningPHIBurlington, Camden, Gloucester, Mercer52 hr
Jul 13, 2:44 PM EDTHeat AdvisoryPHIAtlantic, Burlington, Cape May, Cumberland, Hunterdon, Middlesex and 6 more29 hr
Jul 13, 3:16 PM EDTAreal Flood AdvisoryPHIBucks, Chester, Montgomery4 hr
Jul 13, 4:12 PM EDTAreal Flood AdvisoryPHIBerks, Lehigh, Montgomery4 hr
Jul 13, 5:26 PM EDTAreal Flood AdvisoryPHICarbon, Monroe4 hr
Jul 13, 1:13 PM EDTAreal Flood AdvisoryPHICaroline, Queen Anne's, Talbot4 hr
Jul 13, 2:16 PM EDTAreal Flood AdvisoryPHICaroline4 hr
Jul 13, 2:34 PM EDTFlash Flood WarningPHICaroline, Talbot4 hr
Jul 13, 3:02 PM EDTFlash Flood WarningPHICaroline4 hr
Jul 13, 4:39 PM EDTSpecial Weather StatementPHISussex51 min
Jul 13, 5:02 PM EDTSpecial Weather StatementPHISussex58 min

Nearby

Special Weather Statements in Delaware, 2016Every special weather statement in 2016

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.