Alert archive / Delaware / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 260, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 28, 2026, 6:08 PM EDT for Kent County, New Castle County, Delaware; Kent County, Queen Anne's County, Maryland. It was in force for 52 min. 6 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
- Jul 28, 2026, 6:08 PM EDT (22:08 UTC)
- Expired
- Jul 28, 2026, 7:00 PM EDT
- In force
- 52 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Kent County, DE, New Castle County, DE, Kent County, MD, Queen Anne's County, MD
The radar
The Dover AFB radar (KDOX), 64 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 28, 6:29 PM EDT | MARINE TSTM WIND 39 | 7 Se Gibson Island, MD | A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a personal weather station (KMDSTEVE169) adjacent to the Chesapeake Bay. |
| Jul 28, 6:29 PM EDT | MARINE TSTM WIND 39 | 7 Se Gibson Island, MD | A thunderstorm produced an estimated wind gust to 34 knots (39 MPH) near a personal weather station (KMDSTEVE169) adjacent to the Chesapeake Bay. |
| Jul 28, 6:40 PM EDT | TSTM WND DMG | 1 Nw Centreville, MD | Corrects previous tstm wnd dmg report from 1 NW Centreville. Report of power pole down near the intersection of Corsica Neck Rd and Willis Rd. Time estimated by radar. |
| Jul 28, 6:43 PM EDT | MARINE TSTM WIND 41 | 5 Ese Bay Ridge, MD | A wind gust of 36 knots (41 MPH) was measured by the Kent Island WeatherFlow sensor (XKNT). |
| Jul 28, 6:43 PM EDT | MARINE TSTM WIND 41 | 5 Ese Bay Ridge, MD | A wind gust of 36 knots (41 MPH) was measured by the Kent Island WeatherFlow sensor (XKNT). |
| Jul 28, 6:45 PM EDT | TSTM WND DMG | 1 Sse Hope, MD | Report of power pole down on Dean Rd near Devers Branch Rd. Time estimated by radar. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 28, 12:51 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 28, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 28, 4:20 PM EDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 10.1 hours before the alert went out and 114 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
- 710 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 968 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted.
939
WUUS51 KPHI 282208
SVRPHI
DEC001-003-MDC029-035-282300-
/O.NEW.KPHI.SV.W.0260.260728T2208Z-260728T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
608 PM EDT Tue Jul 28 2026
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southwestern New Castle County in northern Delaware...
Northwestern Kent County in central Delaware...
Queen Anne's County in northeastern Maryland...
Central Kent County in northeastern Maryland...
* Until 700 PM EDT.
* At 607 PM EDT, severe thunderstorms were located along a line
extending from near Cecilton to near Newtown to Bodkin Point,
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...
Middletown, Centerville, Smyrna, Chestertown, Centreville, Clayton,
Church Hill, Millington, Sudlersville, Hartly, Old Town,
Grasonville, Woodland Beach, Morgnec, Delaney Corner, Crumpton,
Sassafras, Stevensville, Green Spring, and Chester.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM EDT for central and
northern Delaware...and eastern and northeastern Maryland.
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 1000 PM EDT for central and
northern Delaware...and eastern and northeastern Maryland.
&&
LAT...LON 3903 7632 3897 7622 3900 7617 3900 7618
3910 7624 3922 7608 3937 7597 3938 7577
3945 7577 3944 7555 3936 7542 3920 7563
3891 7620 3897 7625 3892 7625 3894 7628
3892 7630 3896 7631 3891 7632 3891 7637
TIME...MOT...LOC 2207Z 282DEG 32KT 3941 7596 3926 7612 3912 7640
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MJL1 follow-up statement
142
WWUS51 KPHI 282234 RRA
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
634 PM EDT Tue Jul 28 2026
DEC001-003-MDC029-035-282300-
/O.CON.KPHI.SV.W.0260.000000T0000Z-260728T2300Z/
New Castle DE-Kent DE-Queen Anne's MD-Kent MD-
634 PM EDT Tue Jul 28 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR SOUTHWESTERN NEW CASTLE...NORTHWESTERN KENT...QUEEN ANNE'S AND
CENTRAL KENT COUNTIES...
At 634 PM EDT, severe thunderstorms were located along a line
extending from near Green Spring to near Sudlersville to near
Centreville, moving east at 35 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Middletown, Centerville, Smyrna, Chestertown, Centreville, Clayton,
Church Hill, Millington, Sudlersville, Hartly, Old Town, Grasonville,
Woodland Beach, Morgnec, Delaney Corner, Crumpton, Sassafras,
Stevensville, Green Spring, and Chester.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM EDT for central and
northern Delaware...and eastern and northeastern Maryland.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3903 7632 3897 7622 3900 7617 3900 7618
3910 7624 3922 7608 3937 7597 3938 7577
3945 7577 3944 7555 3936 7542 3920 7563
3891 7620 3897 7625 3892 7625 3894 7628
3892 7630 3896 7631 3891 7632 3891 7637
TIME...MOT...LOC 2234Z 282DEG 32KT 3936 7569 3921 7585 3908 7613
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
MJLThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 5:29 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 61 min |
| Jul 28, 5:53 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 52 min |
| Jul 28, 6:16 PM EDT | Tornado Warning | PHI | New Castle | 29 min |
| Jul 28, 6:23 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 67 min |
| Jul 28, 6:38 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 67 min |
| Jul 28, 6:46 PM EDT | Tornado Warning | PHI | New Castle | 29 min |
| Jul 28, 6:55 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 50 min |
| Jul 28, 6:59 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 61 min |
| Jul 28, 7:11 PM EDT | Flash Flood Warning | PHI | New Castle | 3 hr |
| Jul 28, 7:40 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 50 min |
| Jul 28, 5:15 PM EDT | Severe Thunderstorm Warning | PHI | Talbot | 45 min |
| Jul 28, 5:45 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 60 min |
| Jul 28, 5:51 PM EDT | Tornado Warning | PHI | Talbot | 24 min |
| Jul 28, 5:58 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 47 min |
| Jul 28, 6:15 PM EDT | Tornado Warning | PHI | Kent, Queen Anne's | 30 min |
| Jul 28, 6:55 PM EDT | Tornado Warning | PHI | Queen Anne's, Talbot | 35 min |
Nearby
Severe Thunderstorm Warnings in Delaware, 2026Severe Thunderstorm Warnings in Maryland, 2026Every severe thunderstorm warning in 2026
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.