Alert archive / Delaware / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 74, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 16, 2023, 12:28 PM EDT for Kent County, 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
- Jun 16, 2023, 12:28 PM EDT (16:28 UTC)
- Expired
- Jun 16, 2023, 1:15 PM EDT
- In force
- 47 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Kent County, DE, Sussex County, DE
The radar
The Dover AFB radar (KDOX), 7 km from the middle of the area, began a volume at 16:31 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 16, 11:06 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 4.5 hours before the alert went out and 107 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
- 1057 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 816 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.9
The text
As transmitted.
500
WUUS51 KPHI 161628
SVRPHI
DEC001-005-161715-
/O.NEW.KPHI.SV.W.0074.230616T1628Z-230616T1715Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1228 PM EDT Fri Jun 16 2023
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northern Sussex County in southern Delaware...
Southeastern Kent County in central Delaware...
* Until 115 PM EDT.
* At 1228 PM EDT, severe thunderstorms were located along a line
extending from Milford to near Bridgeville, moving east at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to
roofs, siding, trees, and power lines is possible.
* Locations impacted include...
Milford, Lewes, Milton, Bridgeville, Ellendale, Big Stone Beach,
Greenwood and Houston.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3902 7531 3879 7514 3874 7563 3880 7564
3896 7545
TIME...MOT...LOC 1628Z 254DEG 23KT 3890 7542 3881 7555
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann1 follow-up statement
480
WWUS51 KPHI 161702
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
102 PM EDT Fri Jun 16 2023
DEC001-161711-
/O.CAN.KPHI.SV.W.0074.000000T0000Z-230616T1715Z/
Kent DE-
102 PM EDT Fri Jun 16 2023
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN KENT COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 600 PM EDT for
central and southern Delaware.
LAT...LON 3884 7547 3895 7534 3895 7532 3897 7531
3899 7529 3879 7514 3877 7532 3877 7535
3876 7537 3876 7547
TIME...MOT...LOC 1701Z 254DEG 23KT 3896 7517 3887 7530
$$
DEC005-161715-
/O.CON.KPHI.SV.W.0074.000000T0000Z-230616T1715Z/
Sussex DE-
102 PM EDT Fri Jun 16 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT
FOR NORTHEASTERN SUSSEX COUNTY...
At 101 PM EDT, severe thunderstorms were located along a line
extending from 9 miles east of Big Stone Beach to 6 miles north of
Milton, moving east at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Lewes, Milton and Ellendale.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3884 7547 3895 7534 3895 7532 3897 7531
3899 7529 3879 7514 3877 7532 3877 7535
3876 7537 3876 7547
TIME...MOT...LOC 1701Z 254DEG 23KT 3896 7517 3887 7530
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 11:20 AM EDT | Severe Thunderstorm Warning | PHI | New Castle | 40 min |
| Jun 16, 11:29 AM EDT | Special Weather Statement | PHI | New Castle | 31 min |
| Jun 16, 11:40 AM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 50 min |
| Jun 16, 11:46 AM EDT | Severe Thunderstorm Warning | PHI | New Castle | 59 min |
| Jun 16, 12:46 PM EDT | Areal Flood Advisory | PHI | New Castle | 3 hr |
| Jun 16, 4:05 PM EDT | Special Weather Statement | PHI | Sussex | 25 min |
| Jun 16, 4:29 PM EDT | Special Weather Statement | PHI | Sussex | 46 min |
| Jun 16, 5:27 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 48 min |
| Jun 16, 5:45 PM EDT | Areal Flood Advisory | PHI | Sussex | 2 hr |
Nearby
Severe Thunderstorm Warnings in Delaware, 2023Every severe thunderstorm warning in 2023
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.