Alert archive / Delaware / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 18, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 28, 2015, 5:01 PM EDT for Kent County, New Castle County, Delaware. It was in force for 44 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
- May 28, 2015, 5:01 PM EDT (21:01 UTC)
- Expired
- May 28, 2015, 5:45 PM EDT
- In force
- 44 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Kent County, DE, New Castle County, DE
The radar
The Dover AFB radar (KDOX), 36 km from the middle of the area, began a volume at 21:00 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, 9.0 hours before the alert went out and 135 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
- 71 J/kg
- Mixed-layer CIN
- -121 J/kg
- Mixed-layer LCL
- 852 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 92 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
992
WUUS51 KPHI 282101
SVRPHI
DEC001-003-282145-
/O.NEW.KPHI.SV.W.0018.150528T2101Z-150528T2145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
501 PM EDT THU MAY 28 2015
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL KENT COUNTY IN CENTRAL DELAWARE...
SOUTH CENTRAL NEW CASTLE COUNTY IN NORTHERN DELAWARE...
* UNTIL 545 PM EDT
* AT 501 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM
WAS LOCATED OVER CHESWOLD...OR NEAR DOVER...AND MOVING SOUTHEAST AT
15 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THE DAMAGING WINDS.
* THIS SEVERE THUNDERSTORM WILL BE NEAR...
CHESWOLD AROUND 505 PM EDT.
DOVER AROUND 510 PM EDT.
HAZLETTVILLE AROUND 515 PM EDT.
DOVER SPEEDWAY AROUND 520 PM EDT.
CAMDEN AROUND 530 PM EDT.
WOODSIDE AROUND 535 PM EDT.
VIOLA...DOVER BASE HOUSING...RISING SUN-LEBANON AND RISING SUN
AROUND 540 PM EDT.
BOWERS AROUND 545 PM EDT.
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE LITTLE
CREEK...FREDERICA...RIVERVIEW...WYOMING...MAGNOLIA...LEIPSIC...
WOODSIDE EAST...RODNEY VILLAGE...HIGHLAND ACRES AND KENTON.
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 3920 7572 3933 7560 3921 7539 3915 7541
3907 7541 3904 7536 3893 7549
TIME...MOT...LOC 2101Z 313DEG 13KT 3921 7561
$$
PO1 follow-up statement
930
WWUS51 KPHI 282121
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
521 PM EDT THU MAY 28 2015
DEC003-282130-
/O.CAN.KPHI.SV.W.0018.000000T0000Z-150528T2145Z/
NEW CASTLE DE-
521 PM EDT THU MAY 28 2015
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL NEW CASTLE
COUNTY IS CANCELLED...
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA.
LAT...LON 3920 7572 3926 7559 3921 7539 3915 7541
3907 7541 3904 7536 3893 7549
TIME...MOT...LOC 2120Z 313DEG 13KT 3916 7554
$$
DEC001-282145-
/O.CON.KPHI.SV.W.0018.000000T0000Z-150528T2145Z/
KENT DE-
521 PM EDT THU MAY 28 2015
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR CENTRAL KENT COUNTY...
AT 520 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED OVER DOVER SPEEDWAY...MOVING SOUTHEAST AT 15 MPH. PENNY SIZE
HAIL MAY ALSO ACCOMPANY THE DAMAGING WINDS.
THIS SEVERE STORM WILL BE NEAR...
DOVER AND CAMDEN AROUND 525 PM EDT.
WOODSIDE...DOVER BASE HOUSING AND RISING SUN-LEBANON AROUND 535 PM
EDT.
VIOLA AND RISING SUN AROUND 540 PM EDT.
BOWERS AROUND 545 PM EDT.
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE LITTLE
CREEK...FREDERICA...RIVERVIEW...WYOMING...MAGNOLIA...WOODSIDE EAST...
RODNEY VILLAGE...HIGHLAND ACRES...KENT ACRES AND LEIPSIC.
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 3920 7572 3926 7559 3921 7539 3915 7541
3907 7541 3904 7536 3893 7549
TIME...MOT...LOC 2120Z 313DEG 13KT 3916 7554
$$
PONearby
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.