Alert archive / Delaware / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 145, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 28, 2019, 6:00 PM EDT for New Castle County, Delaware. It was in force for 33 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 28, 2019, 6:00 PM EDT (22:00 UTC)
- Expired
- Jun 28, 2019, 6:33 PM EDT
- In force
- 33 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County New Castle County, DE
The radar
The Dover AFB radar (KDOX), 93 km from the middle of the area, began a volume at 22:01 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
Washington/Dulle, VA (KIAD), launched 12:00Z, 10.0 hours before the alert went out and 174 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
- 92 J/kg
- Mixed-layer CIN
- -173 J/kg
- Mixed-layer LCL
- 1515 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
258
WUUS51 KPHI 282200
SVRPHI
DEC003-282245-
/O.NEW.KPHI.SV.W.0145.190628T2200Z-190628T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
600 PM EDT Fri Jun 28 2019
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northern New Castle County in northern Delaware...
* Until 645 PM EDT.
* At 600 PM EDT, a severe thunderstorm was located over Stanton, or
near Newark, moving east at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* This severe thunderstorm will be near...
Wilmington, New Castle and Delaware City around 605 PM EDT.
Other locations impacted by this severe thunderstorm include
Brookside and Edgemoor.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3979 7570 3974 7548 3971 7550 3972 7552
3967 7555 3965 7559 3961 7555 3964 7560
3962 7561 3959 7560 3959 7557 3958 7559
3957 7557 3954 7559 3961 7579
TIME...MOT...LOC 2200Z 289DEG 37KT 3968 7564
HAIL...<.75IN
WIND...60MPH
$$
jjm1 follow-up statement
829
WWUS51 KPHI 282233
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
633 PM EDT Fri Jun 28 2019
DEC003-282243-
/O.CAN.KPHI.SV.W.0145.000000T0000Z-190628T2245Z/
New Castle DE-
633 PM EDT Fri Jun 28 2019
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN NEW CASTLE COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 3979 7570 3974 7548 3971 7550 3972 7552
3967 7555 3965 7559 3961 7555 3964 7560
3962 7561 3959 7560 3959 7557 3958 7559
3957 7557 3954 7559 3961 7579
TIME...MOT...LOC 2230Z 289DEG 37KT 3957 7522
$$
JEOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 3:04 PM EDT | Special Weather Statement | PHI | Sussex | 26 min |
| Jun 28, 3:51 PM EDT | Special Weather Statement | PHI | Sussex | 24 min |
| Jun 28, 4:39 PM EDT | Special Weather Statement | PHI | Kent | 36 min |
| Jun 28, 5:37 PM EDT | Special Weather Statement | PHI | New Castle | 23 min |
| Jun 28, 6:15 PM EDT | Flash Flood Warning | PHI | New Castle | 106 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.