Alert archive / Delaware / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 43, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 14, 2015, 3:26 PM EDT for Sussex County, Delaware. It was in force for 36 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, 3:26 PM EDT (19:26 UTC)
- Expired
- Jun 14, 2015, 4:02 PM EDT
- In force
- 36 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Sussex County, DE
The radar
The Dover AFB radar (KDOX), 34 km from the middle of the area, began a volume at 19:29 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 72 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
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
166
WUUS51 KPHI 141926
SVRPHI
DEC005-142015-
/O.NEW.KPHI.SV.W.0043.150614T1926Z-150614T2015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
326 PM EDT SUN JUN 14 2015
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN SUSSEX COUNTY IN SOUTHERN DELAWARE...
* UNTIL 415 PM EDT
* AT 325 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM
WAS LOCATED NEAR GUMBORO...OR 9 MILES SOUTH OF GEORGETOWN...AND
MOVING SOUTHEAST AT 10 MPH. NICKEL SIZE HAIL MAY ALSO ACCOMPANY THE
DAMAGING WINDS.
* LOCATIONS IMPACTED INCLUDE...
GEORGETOWN...MILLSBORO...LAUREL...SELBYVILLE...DAGSBORO...
MILLVILLE...GUMBORO...SYCAMORE...LONG NECK...OCEAN VIEW...FRANKFORD
AND SOUTH BETHANY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...DEADLY
LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.
&&
LAT...LON 3845 7551 3855 7560 3871 7536 3861 7514
3859 7518 3859 7521 3858 7518 3857 7518
3859 7514 3859 7511 3858 7510 3857 7506
3845 7505
TIME...MOT...LOC 1925Z 323DEG 10KT 3855 7539
$$
SFJ2 follow-up statements
581
WWUS51 KPHI 141942
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
342 PM EDT SUN JUN 14 2015
DEC005-142015-
/O.CON.KPHI.SV.W.0043.000000T0000Z-150614T2015Z/
SUSSEX DE-
342 PM EDT SUN JUN 14 2015
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR SOUTHEASTERN SUSSEX COUNTY...
AT 341 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED OVER GUMBORO...OR 12 MILES SOUTH OF GEORGETOWN...MOVING
SOUTHEAST AT 10 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THE DAMAGING
WINDS.
LOCATIONS IMPACTED INCLUDE...
MILLSBORO...SELBYVILLE...DAGSBORO...MILLVILLE...GUMBORO...OCEAN
VIEW...FRANKFORD AND SOUTH BETHANY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.
&&
LAT...LON 3845 7551 3853 7552 3860 7546 3861 7514
3859 7518 3859 7521 3858 7518 3857 7518
3859 7514 3859 7511 3858 7510 3857 7506
3845 7505
TIME...MOT...LOC 1941Z 323DEG 10KT 3851 7536
$$
SFJ356
WWUS51 KPHI 142002
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
402 PM EDT SUN JUN 14 2015
DEC005-142012-
/O.CAN.KPHI.SV.W.0043.000000T0000Z-150614T2015Z/
SUSSEX DE-
402 PM EDT SUN JUN 14 2015
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SUSSEX COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS
AND EXITED THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.
LAT...LON 3845 7551 3853 7552 3860 7546 3861 7514
3859 7518 3859 7521 3858 7518 3857 7518
3859 7514 3859 7511 3858 7510 3857 7506
3845 7505
TIME...MOT...LOC 2000Z 323DEG 10KT 3846 7531
$$
SFJThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 4:54 AM EDT | Areal Flood Advisory | PHI | Kent, New Castle | 4 hr |
| Jun 14, 3:21 PM EDT | Special Weather Statement | PHI | Sussex | 24 min |
| Jun 14, 4:11 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 38 min |
| Jun 14, 4:32 PM EDT | Special Weather Statement | PHI | Sussex | 28 min |
| Jun 14, 4:40 PM EDT | Areal Flood Advisory | PHI | New Castle | 3 hr |
| 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 |
| Jun 14, 7:21 PM EDT | Special Weather Statement | PHI | Kent, New Castle, Sussex | 39 min |
Nearby
Severe Thunderstorm Warnings in Delaware, 2015Every severe thunderstorm warning 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.