Alert archive / Delaware / Special Weather Statements in 2015

Special Weather Statement, NWS Philadelphia/Mount Holly

June 14, 2015Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 14, 2015, 3:21 PM EDT for Sussex County, Delaware. It was in force for 24 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: Jun 14, 2015, 3:21 PM EDT (19:21 UTC)
Expired: Jun 14, 2015, 3:45 PM EDT
In force: 24 min
Issued by: NWS Philadelphia/Mount Holly

County Sussex County, DE

The radar

The Dover AFB radar (KDOX), 33 km from the middle of the area, began a volume at 19:24 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

Time	Report	Where	Remark
Jun 14, 3:55 PM EDT	HAIL 0.5	5 W Gumboro, DE	SEVERAL REPORTS OF MARBLE SIZE HAIL.

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 12:00Z, 7.4 hours before the alert went out and 70 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 653 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 1118 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 62 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.

587 
WWUS81 KPHI 141921
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
321 PM EDT SUN JUN 14 2015
 
DEZ003-004-141945-
DELAWARE BEACHES-INLAND SUSSEX-
321 PM EDT SUN JUN 14 2015

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN SUSSEX COUNTY...

AT 320 PM EDT...A STRONG THUNDERSTORM WAS NEAR GUMBORO...OR 10 MILES
SOUTH OF GEORGETOWN...MOVING SOUTHEAST AT 10 MPH.

WIND GUSTS UP TO 40 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS
STORM. IN ADDITION...HEAVY RAIN IS ALSO POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
GEORGETOWN...MILLSBORO...SELBYVILLE...DAGSBORO...GUMBORO...
SYCAMORE...OCEAN VIEW AND FRANKFORD.

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 3845 7545 3855 7553 3857 7554 3869 7538
      3869 7537 3860 7522 3857 7518 3857 7517
      3851 7506 3850 7505 3845 7505
TIME...MOT...LOC 1920Z 323DEG 10KT 3854 7538 
$$

SFJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 4:00 PM EDT	Special Weather Statement	PHI	Atlantic	30 min
Jun 14, 4:11 PM EDT	Severe Thunderstorm Warning	PHI	Salem	38 min
Jun 14, 4:30 PM EDT	Special Weather Statement	PHI	Atlantic, Camden	30 min
Jun 14, 7:21 PM EDT	Special Weather Statement	PHI	Salem	39 min
Jun 14, 7:55 PM EDT	Special Marine Warning	PHI		50 min
Jun 14, 4:40 PM EDT	Areal Flood Advisory	PHI	Chester	3 hr
Jun 14, 6:24 PM EDT	Special Weather Statement	PHI	Berks, Chester	51 min
Jun 14, 6:35 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester	55 min
Jun 14, 6:45 PM EDT	Areal Flood Advisory	PHI	Carbon, Monroe	4 hr
Jun 14, 7:16 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	44 min
Jun 14, 4:54 AM EDT	Areal Flood Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's	4 hr
Jun 14, 4:06 PM EDT	Special Weather Statement	PHI	Cecil	24 min
Jun 14, 6:32 PM EDT	Special Weather Statement	PHI	Cecil, Kent, Queen Anne's, Talbot	28 min
Jun 14, 3:26 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	36 min
Jun 14, 4:32 PM EDT	Special Weather Statement	PHI	Sussex	28 min
Jun 14, 5:06 PM EDT	Special Weather Statement	PHI	Sussex	24 min
Jun 14, 5:15 PM EDT	Areal Flood Advisory	PHI	Kent, Sussex	5 hr
Jun 14, 5:29 PM EDT	Special Weather Statement	PHI	Sussex	31 min

Nearby

Special Weather Statements in Delaware, 2015 Every special weather statement in 2015

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.