Alert archive / Delaware / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

June 8, 2021Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 8, 2021, 8:15 PM EDT for Sussex County, Delaware. It was in force for 45 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 8, 2021, 8:15 PM EDT (00:15 UTC)
Expired: Jun 8, 2021, 9:00 PM EDT
In force: 45 min
Issued by: NWS Philadelphia/Mount Holly

County Sussex County, DE

The radar

The Dover AFB radar (KDOX), 6 km from the middle of the area, began a volume at 00:16 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

Wallops Is Stn, VA (KWAL), launched 00:00Z, 0.3 hours before the alert went out and 99 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: 1557 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 967 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 38 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

442 
WWUS81 KPHI 090015
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
815 PM EDT Tue Jun 8 2021

DEZ003-004-090100-
Inland Sussex-Delaware Beaches-
815 PM EDT Tue Jun 8 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN SUSSEX COUNTY...

At 815 PM EDT, a strong thunderstorm was located near Milton, or 10
miles north of Georgetown, moving east at 30 mph.

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

Locations impacted include...
Georgetown, Milford, Lewes, Milton, Ellendale, Henlopen Acres, Cape
Henlopen State Park, Long Neck and Dewey Beach.

If outdoors, consider seeking shelter inside a building.

LAT...LON 3872 7553 3887 7552 3891 7547 3892 7541
      3894 7540 3892 7509 3859 7503
TIME...MOT...LOC 0015Z 268DEG 28KT 3884 7534 

$$

Iovino

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 8:40 PM EDT	Special Marine Warning	PHI		65 min
Jun 9, 1:46 PM EDT	Special Marine Warning	PHI		59 min
Jun 9, 1:48 PM EDT	Special Weather Statement	PHI	Salem	27 min
Jun 9, 1:52 PM EDT	Special Weather Statement	PHI	Atlantic	23 min
Jun 9, 2:07 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	23 min
Jun 9, 2:14 PM EDT	Special Weather Statement	PHI	Salem	31 min
Jun 9, 2:21 PM EDT	Flash Flood Warning	PHI	Cumberland, Gloucester, Salem	73 min
Jun 9, 2:47 PM EDT	Special Marine Warning	PHI		58 min
Jun 9, 3:32 PM EDT	Special Weather Statement	PHI	Burlington	28 min
Jun 9, 3:48 PM EDT	Special Marine Warning	PHI		57 min
Jun 9, 3:49 PM EDT	Flash Flood Warning	PHI	Burlington	3 hr
Jun 9, 3:51 PM EDT	Special Weather Statement	PHI	Hunterdon	24 min
Jun 9, 5:32 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Monmouth	28 min
Jun 9, 6:46 PM EDT	Special Marine Warning	PHI		59 min
Jun 9, 6:50 PM EDT	Areal Flood Advisory	PHI	Monmouth, Ocean	87 min
Jun 9, 7:42 PM EDT	Special Marine Warning	PHI		63 min
Jun 9, 4:54 PM EDT	Flash Flood Warning	PHI	Berks, Montgomery	112 min
Jun 9, 5:27 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh, Northampton	23 min
Jun 9, 7:54 AM EDT	River Flood Warning	PHI	New Castle	5 hr
Jun 9, 1:35 PM EDT	Special Weather Statement	PHI	New Castle	25 min
Jun 9, 2:26 PM EDT	Severe Thunderstorm Warning	PHI	Kent	64 min
Jun 9, 2:28 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	62 min
Jun 9, 3:11 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	64 min
Jun 9, 3:24 PM EDT	Areal Flood Advisory	PHI	Sussex	3 hr
Jun 9, 4:32 PM EDT	Areal Flood Advisory	PHI	Sussex	108 min
Jun 9, 4:37 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	27 min

Nearby

Special Weather Statements in Delaware, 2021 Every special weather statement 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.