Alert archive / Delaware / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 5, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Feb 24, 2016, 5:20 PM EST for Sussex County, Delaware. It was in force for 25 min. 3 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
- Feb 24, 2016, 5:20 PM EST (22:20 UTC)
- Expired
- Feb 24, 2016, 5:45 PM EST
- In force
- 25 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Sussex County, DE
The radar
The Dover AFB radar (KDOX), 24 km from the middle of the area, began a volume at 22:22 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 |
|---|---|---|---|
| Feb 24, 5:25 PM EST | MARINE TSTM WIND 40 | Lewes, DE | |
| Feb 24, 5:44 PM EST | TSTM WND DMG | Georgetown, DE | TREES AND WIRES DOWN...TIME BASED ON WIND GUST OBSERVATIONS. |
| Feb 24, 5:44 PM EST | TSTM WND GST 59 | Sussex County Airport, DE |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 24, 3:20 PM EST | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 10.3 hours before the alert went out and 85 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
- 5 J/kg
- Mixed-layer CIN
- -165 J/kg
- Mixed-layer LCL
- 504 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 218 m²/s²
- 0-3 km storm-relative helicity
- 268 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
105
WUUS51 KPHI 242220
SVRPHI
DEC005-242245-
/O.NEW.KPHI.SV.W.0005.160224T2220Z-160224T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
520 PM EST WED FEB 24 2016
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SUSSEX COUNTY IN SOUTHERN DELAWARE...
* UNTIL 545 PM EST
* AT 520 PM EST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS
STORM WAS LOCATED OVER DELMAR...OR 7 MILES NORTH OF SALISBURY...AND
MOVING NORTHEAST AT 65 MPH.
* LOCATIONS IMPACTED INCLUDE...
GEORGETOWN...MILFORD...SEAFORD...MILLSBORO...LAUREL...LEWES...
MILTON...SELBYVILLE...BRIDGEVILLE...DELMAR...DAGSBORO...
MILLVILLE...ELLENDALE...HENLOPEN ACRES...SYCAMORE...GUMBORO...CAPE
HENLOPEN STATE PARK...LONG NECK...OCEAN VIEW AND BLADES.
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.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EST FOR SOUTHERN
DELAWARE.
LAT...LON 3846 7569 3883 7572 3884 7555 3896 7536
3880 7518 3879 7509 3880 7510 3880 7509
3867 7507 3869 7508 3869 7514 3864 7513
3866 7507 3861 7506 3859 7521 3857 7519
3860 7506 3845 7505
TIME...MOT...LOC 2220Z 209DEG 57KT 3847 7562
$$
PO1 follow-up statement
860
WWUS51 KPHI 242239
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
539 PM EST WED FEB 24 2016
DEC005-242245-
/O.CON.KPHI.SV.W.0005.000000T0000Z-160224T2245Z/
SUSSEX DE-
539 PM EST WED FEB 24 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EST
FOR SUSSEX COUNTY...
AT 539 PM EST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS STORM WAS
LOCATED OVER ELLENDALE...OR 9 MILES NORTH OF GEORGETOWN...MOVING
NORTH AT 50 MPH.
LOCATIONS IMPACTED INCLUDE...
GEORGETOWN...MILFORD...SEAFORD...MILLSBORO...LAUREL...LEWES...
MILTON...SELBYVILLE...BRIDGEVILLE...DELMAR...DAGSBORO...MILLVILLE...
ELLENDALE...HENLOPEN ACRES...SYCAMORE...GUMBORO...CAPE HENLOPEN STATE
PARK...LONG NECK...OCEAN VIEW AND BLADES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. ALTHOUGH A
TORNADO IS NOT IMMEDIATELY LIKELY...IF ONE IS SPOTTED...ACT QUICKLY
AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A
BASEMENT OR SMALL INTERIOR ROOM.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...DEADLY
LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EST FOR SOUTHERN
DELAWARE.
LAT...LON 3846 7569 3883 7572 3884 7555 3896 7536
3880 7518 3879 7509 3880 7510 3880 7509
3867 7507 3869 7508 3869 7514 3864 7513
3866 7507 3861 7506 3859 7521 3857 7519
3860 7506 3845 7505
TIME...MOT...LOC 2239Z 196DEG 45KT 3882 7544
$$
POThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 3:19 AM EST | Wind Advisory | PHI | Sussex | 22 hr |
| Feb 24, 3:56 PM EST | Coastal Flood Advisory | PHI | New Castle | 20 hr |
| Feb 24, 5:45 PM EST | Severe Thunderstorm Warning | PHI | Kent, Sussex | 30 min |
| Feb 24, 6:05 PM EST | Severe Thunderstorm Warning | PHI | Kent | 40 min |
Nearby
Severe Thunderstorm Warnings in Delaware, 2016Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.