Alert archive / Delaware / Special Weather Statements in 2015
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Aug 4, 2015, 11:43 PM EDT for Sussex County, Delaware. It was in force for 47 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
- Aug 4, 2015, 11:43 PM EDT (03:43 UTC)
- Expired
- Aug 5, 2015, 12:30 AM EDT
- In force
- 47 min
- Issued by
- NWS Philadelphia/Mount Holly
County Sussex County, DE
The radar
The Dover AFB radar (KDOX), 31 km from the middle of the area, began a volume at 03:45 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, 3.7 hours before the alert went out and 75 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.
- Mixed-layer CAPE
- 961 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 1098 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
369
WWUS81 KPHI 050343
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1143 PM EDT TUE AUG 4 2015
DEZ003-004-050430-
DELAWARE BEACHES-INLAND SUSSEX-
1143 PM EDT TUE AUG 4 2015
...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN SUSSEX COUNTY...
AT 1143 PM EDT...A STRONG THUNDERSTORM WAS NEAR LAUREL...OR 10 MILES
NORTH OF SALISBURY...MOVING EAST AT 25 MPH.
WIND GUSTS UP TO 40 MPH ARE POSSIBLE WITH THIS STORM.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY
CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.
THIS STORM WILL BE NEAR...
GUMBORO AROUND 1205 AM EDT.
MILLSBORO AROUND 1215 AM EDT.
DAGSBORO AROUND 1220 AM EDT.
SELBYVILLE AROUND 1225 AM EDT.
MILLVILLE AROUND 1230 AM EDT.
OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE LONG NECK...BETHEL AND
FRANKFORD.
LAT...LON 3846 7563 3862 7562 3876 7513 3869 7513
3869 7514 3862 7513 3859 7518 3859 7521
3858 7518 3857 7518 3859 7514 3859 7512
3845 7512
TIME...MOT...LOC 0343Z 269DEG 21KT 3852 7554
$$
ROBERTSONThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 8:04 PM EDT | Special Weather Statement | PHI | Cumberland | 56 min |
| Aug 4, 10:07 PM EDT | Special Weather Statement | PHI | Cape May | 53 min |
| Aug 4, 10:30 PM EDT | Areal Flood Advisory | PHI | Cape May | 4 hr |
| Aug 4, 10:40 PM EDT | Special Marine Warning | PHI | 50 min | |
| Aug 4, 10:56 PM EDT | Special Weather Statement | PHI | Cape May | 19 min |
| Aug 4, 11:22 PM EDT | Special Marine Warning | PHI | 53 min | |
| Aug 4, 10:44 PM EDT | Special Weather Statement | PHI | Talbot | 31 min |
| Aug 4, 11:10 PM EDT | Special Weather Statement | PHI | Caroline, Talbot | 50 min |
| Aug 4, 11:28 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 32 min |
| Aug 4, 9:01 PM EDT | Special Weather Statement | PHI | New Castle | 59 min |
| Aug 4, 10:24 PM EDT | Special Weather Statement | PHI | Sussex | 51 min |
| Aug 4, 11:06 PM EDT | Special Weather Statement | PHI | Sussex | 24 min |
| Aug 4, 11:18 PM EDT | Areal Flood Advisory | PHI | Sussex | 4 hr |
| Aug 4, 11:35 PM EDT | Flash Flood Warning | PHI | Sussex | 4 hr |
| Aug 5, 12:04 AM EDT | Special Weather Statement | PHI | Sussex | 41 min |
| Aug 5, 12:39 AM EDT | Flash Flood Warning | PHI | Sussex | 4 hr |
| Aug 5, 12:52 AM EDT | Special Weather Statement | PHI | Sussex | 23 min |
Nearby
Special Weather Statements in Delaware, 2015Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.