Alert archive / Maryland / Flash Flood Warnings in 2025
Flash Flood Warning 95, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 20, 2025, 7:00 PM EDT for Caroline County, Queen Anne's County, Maryland. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 20, 2025, 7:00 PM EDT (23:00 UTC)
- Expired
- Aug 20, 2025, 9:18 PM EDT
- In force
- 2 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Caroline County, MD, Queen Anne's County, MD
The radar
The Dover AFB radar (KDOX), 53 km from the middle of the area, began a volume at 23:01 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 nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 11.0 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 464 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
518
WGUS51 KPHI 202300
FFWPHI
MDC011-035-210300-
/O.NEW.KPHI.FF.W.0095.250820T2300Z-250821T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
700 PM EDT Wed Aug 20 2025
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Central Caroline County in eastern Maryland...
South Central Queen Anne's County in northeastern Maryland...
* Until 1100 PM EDT.
* At 700 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2.5 and 3.5 inches of
rain have fallen. The expected rainfall rate is 1 to 2 inches in 1
hour. Additional rainfall amounts of 1 to 2 inches are possible in
the warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
* Some locations that may experience flash flooding include...
Ridgely, Queen Anne, Starr, Wye Mills, Jumptown, Queenstown and
Hillsboro.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 3893 7615 3895 7617 3897 7617 3902 7614
3901 7601 3897 7585 3893 7586 3890 7589
3891 7595 3892 7594 3892 7595 3894 7609
3894 7610 3893 7611
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
$$
Hoeflich1 follow-up statement
028
WGUS71 KPHI 210118
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
918 PM EDT Wed Aug 20 2025
MDC011-035-210128-
/O.CAN.KPHI.FF.W.0095.000000T0000Z-250821T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Caroline MD-Queen Anne's MD-
918 PM EDT Wed Aug 20 2025
...FLASH FLOOD WARNING IS CANCELLED FOR CENTRAL CAROLINE AND SOUTH
CENTRAL QUEEN ANNE'S COUNTIES...
The earlier slow moving showers and thunderstorms continue to
weaken. Any flooding will continue to recede.
&&
LAT...LON 3893 7615 3895 7617 3897 7617 3902 7614
3901 7601 3897 7585 3893 7586 3890 7589
3891 7595 3892 7594 3892 7595 3894 7609
3894 7610 3893 7611
$$
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 4:15 PM EDT | Coastal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 4 days |
Nearby
Flash Flood Warnings in Maryland, 2025Every flash flood warning in 2025
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.