Alert archive / Maryland / Special Weather Statements in 2020

Special Weather Statement, NWS Philadelphia/Mount Holly

August 3, 2020Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this special weather statement at Aug 3, 2020, 3:40 PM EDT for Talbot County, Maryland. It was in force for 35 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: Aug 3, 2020, 3:40 PM EDT (19:40 UTC)
Expired: Aug 3, 2020, 4:15 PM EDT
In force: 35 min
Issued by: NWS Philadelphia/Mount Holly

County Talbot County, MD

The radar

The Dover AFB radar (KDOX), 72 km from the middle of the area, began a volume at 19:42 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, 7.7 hours before the alert went out and 100 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1503 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: -29 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

009 
WWUS81 KPHI 031940
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
340 PM EDT Mon Aug 3 2020

MDZ015-019-032015-
Queen Anne's-Talbot-
340 PM EDT Mon Aug 3 2020

...A STRONG THUNDERSTORM WILL AFFECT TALBOT AND SOUTHWESTERN QUEEN
ANNE'S COUNTIES...

At 340 PM EDT, a strong thunderstorm was located near Oxford, or 11
miles northwest of Cambridge, moving north at 25 mph.

Wind gusts up to 45 mph are possible with this storm.

Heavy rainfall is also occurring with this storm...and may cause 
ponding on roadways and poor drainage areas. Do not drive your 
vehicle through flooded roadways.

Occasional cloud to ground lightning is occurring with this storm. 
Lightning can strike 15 miles away from a thunderstorm. If you see 
lightning or hear thunder seek a safe shelter inside a building or 
vehicle.

Locations impacted include...
Easton, Talbot, Trappe, St. Michaels, Oxford, Tilghman Island,
Hambleton, Skipton and Copperville.

LAT...LON 3883 7631 3884 7637 3890 7636 3883 7629
      3885 7627 3890 7630 3879 7620 3891 7625
      3891 7602 3859 7605 3868 7621 3876 7622
      3871 7628 3878 7629 3876 7632 3867 7634
      3876 7638
TIME...MOT...LOC 1940Z 181DEG 20KT 3867 7625 

$$

Robertson

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 2, 8:09 PM EDT	Special Marine Warning	PHI		36 min
Aug 2, 8:53 PM EDT	Rip Current Statement	PHI	Atlantic, Cape May, Monmouth, Ocean	51 hr
Aug 2, 8:53 PM EDT	High Surf Advisory	PHI	Atlantic, Cape May, Monmouth, Ocean	51 hr
Aug 2, 9:01 PM EDT	Special Weather Statement	PHI	Atlantic	44 min
Aug 2, 10:18 PM EDT	Special Weather Statement	PHI	Warren	42 min
Aug 2, 11:42 PM EDT	Special Weather Statement	PHI	Cumberland	33 min
Aug 2, 11:49 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Ocean and 1 more	41 min
Aug 3, 5:08 AM EDT	Tropical Storm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more	39 hr
Aug 3, 4:26 PM EDT	Coastal Flood Advisory	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 4 more	38 hr
Aug 3, 6:03 PM EDT	Special Marine Warning	PHI		12 min
Aug 3, 6:05 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland	22 min
Aug 3, 6:19 PM EDT	Special Weather Statement	PHI	Salem	26 min
Aug 3, 6:32 PM EDT	Special Weather Statement	PHI	Camden, Cumberland, Gloucester, Salem	28 min
Aug 3, 6:48 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester	27 min
Aug 3, 6:59 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester	31 min
Aug 3, 7:02 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester, Salem	28 min
Aug 3, 7:12 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Monmouth, Ocean	48 min
Aug 3, 7:20 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Mercer, Monmouth	40 min
Aug 3, 7:43 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Monmouth, Ocean	62 min
Aug 3, 7:52 PM EDT	Special Marine Warning	PHI		73 min
Aug 3, 7:56 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Middlesex, Monmouth, Ocean, Somerset	52 min
Aug 2, 8:00 PM EDT	Special Weather Statement	PHI	Kent	30 min
Aug 3, 3:05 PM EDT	Special Weather Statement	PHI	Sussex	25 min
Aug 3, 3:27 PM EDT	Special Weather Statement	PHI	Sussex	48 min
Aug 3, 4:26 PM EDT	Coastal Flood Warning	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	27 hr

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.