Alert archive / Delaware / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 5, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 15, 2024, 3:53 PM EDT for New Castle County, Delaware. It was in force for 43 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 15, 2024, 3:53 PM EDT (19:53 UTC)
- Expired
- Apr 15, 2024, 4:36 PM EDT
- In force
- 43 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County New Castle County, DE
The radar
The Dover AFB radar (KDOX), 77 km from the middle of the area, began a volume at 19:53 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 15, 4:17 PM EDT | HAIL 0.5 | Middletown, DE | Public report from social media. Pictures provided. |
| Apr 15, 4:22 PM EDT | HAIL 0.5 | 3 Se Chesapeake City, DE | Report from mPING: Half-inch (0.50 in.). |
| Apr 15, 4:23 PM EDT | HAIL 0.88 | Middletown, DE |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.9 hours before the alert went out and 172 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
- 2144 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 137 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
978
WUUS51 KPHI 151953
SVRPHI
DEC003-152100-
/O.NEW.KPHI.SV.W.0005.240415T1953Z-240415T2100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
353 PM EDT Mon Apr 15 2024
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southwestern New Castle County in northern Delaware...
* Until 500 PM EDT.
* At 353 PM EDT, a severe thunderstorm was located near Charlestown,
or near Havre De Grace, moving east at 35 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...
Newark, Middletown, Salem, Delaware City, Saint Georges, Mount
Pleasant, Glasgow, Bear, Port Penn, Hope Creek, Townsend, Odessa,
and Chambersville.
This includes Interstate 95 in Delaware between mile markers 0 and 2.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3961 7555 3958 7551 3960 7546 3958 7547
3954 7542 3958 7549 3954 7554 3950 7553
3951 7548 3949 7553 3950 7554 3933 7548
3936 7551 3935 7556 3941 7577 3966 7579
TIME...MOT...LOC 1953Z 287DEG 32KT 3960 7603
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RCM2 follow-up statements
585
WWUS51 KPHI 152022
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
422 PM EDT Mon Apr 15 2024
DEC003-152100-
/O.CON.KPHI.SV.W.0005.000000T0000Z-240415T2100Z/
New Castle DE-
422 PM EDT Mon Apr 15 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR SOUTHWESTERN NEW CASTLE COUNTY...
At 422 PM EDT, a severe thunderstorm was located over Mount Pleasant,
or near Middletown, moving east at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Trained weather spotters.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Salem, Delaware City, Saint Georges, Port Penn, Mount Pleasant, and
Odessa.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3957 7577 3957 7551 3960 7546 3954 7554
3950 7553 3951 7548 3949 7553 3950 7554
3946 7554 3946 7553 3940 7551 3940 7554
3950 7578
TIME...MOT...LOC 2022Z 287DEG 32KT 3952 7571
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RCM239
WWUS51 KPHI 152036
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
436 PM EDT Mon Apr 15 2024
DEC003-152046-
/O.CAN.KPHI.SV.W.0005.000000T0000Z-240415T2100Z/
New Castle DE-
436 PM EDT Mon Apr 15 2024
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN NEW CASTLE COUNTY
IS CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
LAT...LON 3957 7577 3957 7551 3960 7546 3954 7554
3950 7553 3951 7548 3949 7553 3950 7554
3946 7554 3946 7553 3940 7551 3940 7554
3950 7578
TIME...MOT...LOC 2035Z 287DEG 32KT 3948 7555
$$
RCMThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 9:04 PM EDT | Special Weather Statement | PHI | New Castle | 41 min |
| Apr 14, 9:43 PM EDT | Special Weather Statement | PHI | New Castle | 47 min |
Nearby
Severe Thunderstorm Warnings in Delaware, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.