Alert archive / Delaware / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 39, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 22, 2023, 5:23 PM EDT for Caroline County, Maryland; Kent County, Sussex County, Delaware. It was in force for 52 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 22, 2023, 5:23 PM EDT (21:23 UTC)
- Expired
- Apr 22, 2023, 6:15 PM EDT
- In force
- 52 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, Caroline County, MD
The radar
The Dover AFB radar (KDOX), 25 km from the middle of the area, began a volume at 21:24 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 22, 10:07 AM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 9.4 hours before the alert went out and 75 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1069 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
335
WUUS51 KPHI 222123
SVRPHI
DEC001-005-MDC011-222215-
/O.NEW.KPHI.SV.W.0039.230422T2123Z-230422T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
523 PM EDT Sat Apr 22 2023
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Sussex County in southern Delaware...
South central Kent County in central Delaware...
Southeastern Caroline County in eastern Maryland...
* Until 615 PM EDT.
* At 523 PM EDT, severe thunderstorms were located along a line
extending from 8 miles northeast of Deal Island to University Of
Maryland Eastern Shore, moving northeast at 50 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...
Georgetown, Seaford, Millsboro, Laurel, Harrington, Lewes, Milton,
Bridgeville, Delmar, Dagsboro, Ellendale, Gumboro, Sycamore,
Andrewsville, Blades, Greenwood, Bethel and Farmington.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3845 7538 3846 7569 3864 7571 3869 7577
3894 7565 3875 7509 3845 7533
TIME...MOT...LOC 2123Z 206DEG 44KT 3827 7588 3820 7566
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RCM1 follow-up statement
695
WWUS51 KPHI 222203
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
603 PM EDT Sat Apr 22 2023
DEC001-005-MDC011-222215-
/O.CON.KPHI.SV.W.0039.000000T0000Z-230422T2215Z/
Sussex DE-Kent DE-Caroline MD-
603 PM EDT Sat Apr 22 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SUSSEX...SOUTH CENTRAL KENT AND SOUTHEASTERN CAROLINE COUNTIES...
At 603 PM EDT, severe thunderstorms were located along a line
extending from near Seaford to near Georgetown, moving northeast at
50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Georgetown, Seaford, Millsboro, Laurel, Harrington, Lewes, Milton,
Bridgeville, Dagsboro, Ellendale, Gumboro, Sycamore, Andrewsville,
Blades, Greenwood and Farmington.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3845 7539 3857 7557 3864 7571 3869 7577
3894 7565 3875 7509 3845 7533
TIME...MOT...LOC 2203Z 206DEG 44KT 3870 7562 3863 7539
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RCMThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 3:25 PM EDT | Special Weather Statement | PHI | Kent, Queen Anne's, Talbot | 35 min |
| Apr 22, 4:22 PM EDT | Special Weather Statement | PHI | Talbot | 38 min |
| Apr 22, 4:44 PM EDT | Special Weather Statement | PHI | New Castle | 31 min |
| Apr 22, 5:41 PM EDT | Special Weather Statement | PHI | Kent | 34 min |
Nearby
Severe Thunderstorm Warnings in Delaware, 2023Severe Thunderstorm Warnings in Maryland, 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.