Alert archive / Maryland / Special Weather Statements in 2020

Special Weather Statement, NWS Philadelphia/Mount Holly

June 20, 2020Queen Anne's County, Maryland

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 20, 2020, 1:27 PM EDT for Queen Anne's County, Maryland. It was in force for 33 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 20, 2020, 1:27 PM EDT (17:27 UTC)
Expired: Jun 20, 2020, 2:00 PM EDT
In force: 33 min
Issued by: NWS Philadelphia/Mount Holly

County Queen Anne's County, MD

The radar

The Dover AFB radar (KDOX), 72 km from the middle of the area, began a volume at 17:26 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, 5.5 hours before the alert went out and 135 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 131 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 643 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 33 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

169 
WWUS81 KPHI 201727
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
127 PM EDT Sat Jun 20 2020

DEZ001-002-MDZ008-012-015-020-201800-
Kent-New Castle-Queen Anne's-Cecil-Kent-Caroline-
127 PM EDT Sat Jun 20 2020

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT SOUTHWESTERN NEW
CASTLE...NORTHWESTERN KENT...QUEEN ANNE'S...NORTHEASTERN CAROLINE...
NORTHEASTERN KENT AND SOUTHEASTERN CECIL COUNTIES...

At 126 PM EDT, strong thunderstorms were clustered over Sudlersville,
or 13 miles northeast of Centerville, moving north at 15 mph.

Wind gusts up to 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Middletown, Centerville, Smyrna, Chestertown, Centreville, Clayton,
Cheswold, Church Hill, Cecilton, Millington, Sudlersville, Betterton,
Goldsboro, Hartly, Warwick, Old Town, Bohemias Mills, Hazlettville,
Morgnec and Delaney Corner.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 3937 7609 3937 7606 3941 7603 3942 7600
      3944 7600 3946 7601 3949 7599 3947 7554
      3946 7552 3899 7564 3902 7613
TIME...MOT...LOC 1726Z 157DEG 14KT 3915 7585 

$$

NC

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 19, 8:55 PM EDT	Special Weather Statement	PHI	Sussex	35 min
Jun 20, 12:32 PM EDT	Areal Flood Advisory	PHI	Salem	4 hr
Jun 20, 2:57 PM EDT	Special Weather Statement	PHI	Gloucester	33 min
Jun 20, 3:20 PM EDT	Areal Flood Advisory	PHI	Camden, Gloucester	4 hr
Jun 20, 3:29 PM EDT	Special Weather Statement	PHI	Camden, Gloucester	31 min
Jun 20, 3:34 PM EDT	Flash Flood Warning	PHI	Camden, Gloucester	4 hr
Jun 20, 3:43 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	32 min
Jun 20, 4:08 PM EDT	Special Weather Statement	PHI	Burlington	37 min
Jun 20, 5:00 PM EDT	Special Weather Statement	PHI	Hunterdon	30 min
Jun 20, 5:27 PM EDT	Special Weather Statement	PHI	Hunterdon	33 min
Jun 20, 5:30 PM EDT	Special Weather Statement	PHI	Union	15 min
Jun 20, 5:53 PM EDT	Areal Flood Advisory	PHI	Hunterdon	3 hr
Jun 20, 5:53 PM EDT	Special Weather Statement	PHI	Morris, Sussex	52 min
Jun 20, 2:19 PM EDT	Areal Flood Advisory	PHI	Chester	2 hr
Jun 20, 4:09 PM EDT	Areal Flood Advisory	PHI	Berks	3 hr
Jun 20, 4:10 PM EDT	Special Weather Statement	PHI	Philadelphia	35 min
Jun 20, 2:00 PM EDT	Special Weather Statement	PHI	Caroline	30 min
Jun 20, 2:35 PM EDT	Special Weather Statement	PHI	Caroline, Queen Anne's	25 min

Nearby

Special Weather Statements in Maryland, 2020 Every special weather statement in 2020

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.