Alert archive / Delaware / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 152, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 29, 2019, 3:06 PM EDT for Kent County, Delaware. It was in force for 39 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 29, 2019, 3:06 PM EDT (19:06 UTC)
- Expired
- Jun 29, 2019, 3:45 PM EDT
- In force
- 39 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Kent County, DE
The radar
The Dover AFB radar (KDOX), 48 km from the middle of the area, began a volume at 19:05 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 29, 2:04 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 7.1 hours before the alert went out and 147 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
- 783 J/kg
- Mixed-layer CIN
- -114 J/kg
- Mixed-layer LCL
- 1214 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
845
WUUS51 KPHI 291906
SVRPHI
DEC001-291945-
/O.NEW.KPHI.SV.W.0152.190629T1906Z-190629T1945Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
306 PM EDT Sat Jun 29 2019
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern Kent County in central Delaware...
* Until 345 PM EDT.
* At 306 PM EDT, a severe thunderstorm was located near Woodland
Beach, or near Dover, moving east at 10 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...
Smyrna, Cheswold and Leipsic.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm, and
the storm will affect the beaches. For your safety, immediately move
off the beach and seek shelter indoors.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3931 7558 3933 7557 3933 7546 3925 7540
3924 7541 3920 7540 3916 7541 3921 7556
3920 7556 3921 7557 3921 7558 3922 7560
3931 7562
TIME...MOT...LOC 1906Z 274DEG 10KT 3926 7549
HAIL...1.00IN
WIND...60MPH
$$
Staarmann3 follow-up statements
198
WWUS51 KPHI 291920
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
320 PM EDT Sat Jun 29 2019
DEC001-291945-
/O.CON.KPHI.SV.W.0152.000000T0000Z-190629T1945Z/
Kent DE-
320 PM EDT Sat Jun 29 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR NORTHEASTERN KENT COUNTY...
At 319 PM EDT, a severe thunderstorm was located near Woodland Beach,
or 7 miles northeast of Dover, moving east at 10 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Leipsic.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3921 7553 3928 7553 3931 7544 3925 7540
3924 7541 3920 7540 3917 7541
TIME...MOT...LOC 1919Z 271DEG 9KT 3926 7546
HAIL...1.00IN
WIND...60MPH
$$
Staarmann044
WWUS51 KPHI 291928
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
328 PM EDT Sat Jun 29 2019
DEC001-291945-
/O.CON.KPHI.SV.W.0152.000000T0000Z-190629T1945Z/
Kent DE-
328 PM EDT Sat Jun 29 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR NORTHEASTERN KENT COUNTY...
At 328 PM EDT, a severe thunderstorm was located 7 miles southeast of
Woodland Beach, or 8 miles northeast of Dover, moving east at 20 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.
This severe thunderstorm will remain over mainly rural areas of
northeastern Kent County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3920 7549 3926 7546 3928 7542 3925 7540
3924 7541 3920 7540 3917 7541
TIME...MOT...LOC 1928Z 278DEG 16KT 3924 7540
HAIL...1.00IN
WIND...60MPH
$$
Staarmann183
WWUS51 KPHI 291935
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
335 PM EDT Sat Jun 29 2019
DEC001-291945-
/O.EXP.KPHI.SV.W.0152.000000T0000Z-190629T1945Z/
Kent DE-
335 PM EDT Sat Jun 29 2019
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN KENT COUNTY WILL
EXPIRE AT 345 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.
A severe thunderstorm watch remains in effect until 700 PM EDT for
central Delaware.
LAT...LON 3920 7549 3926 7546 3928 7542 3925 7540
3924 7541 3920 7540 3917 7541
TIME...MOT...LOC 1935Z 274DEG 10KT 3924 7538
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 2:33 PM EDT | Special Weather Statement | PHI | Kent | 27 min |
| Jun 29, 2:47 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 28 min |
| Jun 29, 2:57 PM EDT | Special Weather Statement | PHI | Kent | 33 min |
| Jun 29, 3:13 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 8 min |
| Jun 29, 3:24 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 36 min |
| Jun 29, 3:39 PM EDT | Special Weather Statement | PHI | New Castle | 51 min |
| Jun 29, 3:59 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 46 min |
| Jun 29, 4:00 PM EDT | Flash Flood Warning | PHI | New Castle | 3 hr |
| Jun 29, 4:24 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 36 min |
| Jun 29, 4:38 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 52 min |
| Jun 29, 4:52 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 38 min |
| Jun 29, 4:55 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 50 min |
| Jun 29, 5:26 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 79 min |
| Jun 29, 5:38 PM EDT | Areal Flood Advisory | PHI | Kent | 109 min |
| Jun 29, 6:38 PM EDT | Special Weather Statement | PHI | Sussex | 52 min |
Nearby
Severe Thunderstorm Warnings in Delaware, 2019Every severe thunderstorm warning in 2019
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.