Alert archive / Delaware / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 26, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 26, 2019, 5:39 PM EDT for Kent County, Sussex County, Delaware. It was in force for 28 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
- Apr 26, 2019, 5:39 PM EDT (21:39 UTC)
- Expired
- Apr 26, 2019, 6:07 PM EDT
- In force
- 28 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Kent County, DE, Sussex County, DE
The radar
The Dover AFB radar (KDOX), 39 km from the middle of the area, began a volume at 21:40 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 |
|---|---|---|---|
| Apr 26, 1:33 PM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 9.7 hours before the alert went out and 118 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
- 44 J/kg
- Mixed-layer CIN
- -206 J/kg
- Mixed-layer LCL
- 1440 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
127
WUUS51 KPHI 262139
SVRPHI
DEC001-005-262230-
/O.NEW.KPHI.SV.W.0026.190426T2139Z-190426T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
539 PM EDT FRI APR 26 2019
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Eastern Sussex County in southern Delaware...
Southeastern Kent County in central Delaware...
* Until 630 PM EDT.
* At 539 PM EDT, severe thunderstorms were located along a line
extending from Bowers to Milton to Parsonsburg, moving east at 35
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Georgetown, Cape May, Milford, North Wildwood, Millsboro, Wildwood
Crest, Lewes, Milton, Selbyville, Avalon, West Cape May, Stone
Harbor, Dagsboro, Millville, Bowers, Henlopen Acres, Scotch Bonnet,
Gumboro, Cape Henlopen State Park and North Cape May.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted, act quickly and move to a
place of safety inside a sturdy structure such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
A tornado watch remains in effect until 900 PM EDT for central and
southern Delaware...and southern New Jersey.
LAT...LON 3845 7550 3876 7541 3911 7545 3925 7501
3923 7503 3916 7489 3897 7496 3912 7485
3911 7485 3893 7496 3917 7473 3904 7476
3909 7472 3907 7472 3891 7486 3881 7506
3846 7504
TIME...MOT...LOC 2139Z 255DEG 30KT 3906 7537 3878 7534 3840 7545
HAIL...<.75IN
WIND...60MPH
$$
MPS1 follow-up statement
426
WWUS51 KPHI 262207 RRA
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
607 PM EDT FRI APR 26 2019
DEC001-005-262217-
/O.CAN.KPHI.SV.W.0026.000000T0000Z-190426T2230Z/
Sussex DE-Kent DE-
607 PM EDT FRI APR 26 2019
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN SUSSEX AND
SOUTHEASTERN KENT COUNTIES IS CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning has
been cancelled. However gusty winds and heavy rain are still
possible with these thunderstorms.
A tornado watch remains in effect until 900 PM EDT for central and
southern Delaware...and southern New Jersey.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
in Mount Holly NJ.
LAT...LON 3845 7550 3876 7541 3911 7545 3925 7501
3923 7503 3916 7489 3897 7496 3912 7485
3911 7485 3893 7496 3917 7473 3904 7476
3909 7472 3907 7472 3891 7486 3881 7506
3846 7504
TIME...MOT...LOC 2206Z 255DEG 30KT 3912 7509 3884 7506 3846 7517
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 9:52 AM EDT | Special Weather Statement | PHI | Kent | 38 min |
| Apr 26, 10:05 AM EDT | Special Weather Statement | PHI | Sussex | 40 min |
| Apr 26, 10:51 AM EDT | Special Weather Statement | PHI | Kent | 24 min |
| Apr 26, 11:19 AM EDT | Special Weather Statement | PHI | Kent | 41 min |
| Apr 26, 2:01 PM EDT | Areal Flood Advisory | PHI | Sussex | 3 hr |
| Apr 26, 4:28 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle, Sussex | 47 min |
| Apr 26, 4:59 PM EDT | Areal Flood Advisory | PHI | Kent, New Castle | 4 hr |
| Apr 26, 5:07 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle, Sussex | 38 min |
| Apr 26, 5:15 PM EDT | Areal Flood Advisory | PHI | Kent, New Castle | 4 hr |
| Apr 26, 5:37 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 38 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.