Alert archive / Maryland / Areal Flood Advisories in 2021
Areal Flood Advisory 31, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Jun 11, 2021, 1:32 AM EDT for Kent County, Queen Anne's County, Maryland. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 11, 2021, 1:32 AM EDT (05:32 UTC)
- Expired
- Jun 11, 2021, 4:14 AM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Kent County, MD, Queen Anne's County, MD
The radar
The Dover AFB radar (KDOX), 75 km from the middle of the area, began a volume at 05:32 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 00:00Z, 5.5 hours before the alert went out and 116 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
- 194 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 667 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted.
609
WGUS81 KPHI 110532
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
132 AM EDT Fri Jun 11 2021
MDC029-035-110830-
/O.NEW.KPHI.FA.Y.0031.210611T0532Z-210611T0830Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kent MD-Queen Anne's MD-
132 AM EDT Fri Jun 11 2021
The National Weather Service in Mount Holly has issued a
* Flood Advisory for...
North Central Kent County in northeastern Maryland...
Central Queen Anne's County in northeastern Maryland...
* Until 430 AM EDT.
* At 132 AM EDT, Doppler radar indicated heavy rain approaching
areas that received heavy rain on Thursday. Minor flooding is
ongoing or expected to begin shortly in the advisory area. Up to
0.5 inches of rain have fallen as of 1:30 AM EDT.
* Some locations that will experience flooding include...
Chestertown, Centreville, Church Hill, Betterton, Starkey Corner,
Morgnec, Old Town, Langford, Carville, Hope, Newtown, and
Kingstown.
LAT...LON 3927 7620 3928 7620 3928 7619 3929 7618
3929 7617 3930 7618 3931 7618 3934 7615
3933 7614 3933 7613 3935 7614 3937 7611
3937 7606 3938 7605 3903 7588 3902 7589
3898 7600 3900 7600
$$
SFJ1 follow-up statement
622
WGUS81 KPHI 110814
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
414 AM EDT Fri Jun 11 2021
MDC029-035-110824-
/O.CAN.KPHI.FA.Y.0031.000000T0000Z-210611T0830Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kent MD-Queen Anne's MD-
414 AM EDT Fri Jun 11 2021
...FLOOD ADVISORY IS CANCELLED FOR NORTH CENTRAL KENT AND CENTRAL
QUEEN ANNE'S COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 3927 7620 3928 7620 3928 7619 3929 7618
3929 7617 3930 7618 3931 7618 3934 7615
3933 7614 3933 7613 3935 7614 3937 7611
3937 7606 3938 7605 3903 7588 3902 7589
3898 7600 3900 7600
$$
SFJNearby
Areal Flood Advisories in Maryland, 2021Every areal flood advisory in 2021
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.