Alert archive / Delaware / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 95, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 30, 2024, 6:08 PM EDT for Kent County, New Castle County, Delaware; Kent County, Maryland. 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
- Jun 30, 2024, 6:08 PM EDT (22:08 UTC)
- Expired
- Jun 30, 2024, 7:00 PM EDT
- In force
- 52 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Kent County, DE, New Castle County, DE, Kent County, MD
The radar
The Dover AFB radar (KDOX), 69 km from the middle of the area, began a volume at 22:07 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 30, 11:09 AM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jun 30, 3:21 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 10.1 hours before the alert went out and 151 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
- 958 J/kg
- Mixed-layer CIN
- -163 J/kg
- Mixed-layer LCL
- 1517 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
800
WUUS51 KPHI 302208
SVRPHI
DEC001-003-MDC029-302300-
/O.NEW.KPHI.SV.W.0095.240630T2208Z-240630T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
608 PM EDT Sun Jun 30 2024
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southwestern New Castle County in northern Delaware...
North central Kent County in central Delaware...
Northeastern Kent County in northeastern Maryland...
* Until 700 PM EDT.
* At 608 PM EDT, a severe thunderstorm was located over Cayots, or 7
miles west of Middletown, moving east at 20 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Middletown, Smyrna, Sassafras, Mount Pleasant, Green Spring,
Townsend, Galena, Odessa, and Chambersville.
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 3936 7588 3937 7585 3938 7582 3938 7577
3952 7577 3949 7554 3946 7554 3945 7549
3928 7552 3936 7595 3937 7595
TIME...MOT...LOC 2208Z 288DEG 18KT 3946 7586
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Fitzsimmons1 follow-up statement
163
WWUS51 KPHI 302228
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
628 PM EDT Sun Jun 30 2024
DEC001-003-MDC029-302300-
/O.CON.KPHI.SV.W.0095.000000T0000Z-240630T2300Z/
New Castle DE-Kent DE-Kent MD-
628 PM EDT Sun Jun 30 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR SOUTHWESTERN NEW CASTLE...NORTH CENTRAL KENT AND NORTHEASTERN
KENT COUNTIES...
At 628 PM EDT, a severe thunderstorm was located over Middletown,
moving east at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Middletown, Smyrna, Sassafras, Mount Pleasant, Green Spring,
Townsend, Odessa, and Chambersville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3938 7583 3938 7577 3952 7577 3949 7554
3946 7554 3945 7549 3929 7552 3928 7552
3934 7584
TIME...MOT...LOC 2228Z 287DEG 20KT 3942 7570
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
FitzsimmonsThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 5:20 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 40 min |
| Jun 30, 5:51 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 39 min |
| Jun 30, 7:00 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 45 min |
| Jun 30, 7:31 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 44 min |
| Jun 30, 6:04 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 41 min |
Nearby
Severe Thunderstorm Warnings in Delaware, 2024Severe Thunderstorm Warnings in Maryland, 2024Every severe thunderstorm warning in 2024
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.