Alert archive / Delaware / Special Weather Statements in 2021
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Jul 3, 2021, 5:05 PM EDT for Sussex County, Delaware. It was in force for 25 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
- Jul 3, 2021, 5:05 PM EDT (21:05 UTC)
- Expired
- Jul 3, 2021, 5:30 PM EDT
- In force
- 25 min
- Issued by
- NWS Philadelphia/Mount Holly
County Sussex County, DE
The radar
The Dover AFB radar (KDOX), 11 km from the middle of the area, began a volume at 21:06 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 12:00Z, 9.1 hours before the alert went out and 108 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
- 1396 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
849 WWUS81 KPHI 032105 SPSPHI Special Weather Statement National Weather Service Mount Holly NJ 505 PM EDT Sat Jul 3 2021 DEZ002>004-032130- Inland Sussex-Kent-Delaware Beaches- 505 PM EDT Sat Jul 3 2021 ...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN SUSSEX AND SOUTHEASTERN KENT COUNTIES... At 505 PM EDT, a strong thunderstorm was located near Big Stone Beach, or 14 miles southeast of Dover, moving southeast at 40 mph. Wind gusts up to 40 mph and pea size hail are possible with this storm. Locations impacted include... Milford, Lewes, Milton, Big Stone Beach and Frederica. If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways. LAT...LON 3900 7549 3906 7537 3877 7509 3868 7535 TIME...MOT...LOC 2105Z 326DEG 33KT 3897 7539 $$ MPS
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 9:00 PM EDT | Special Weather Statement | PHI | Burlington | 45 min |
| Jul 3, 2:28 PM EDT | Special Weather Statement | PHI | Salem | 47 min |
| Jul 3, 2:32 PM EDT | Special Weather Statement | PHI | Cape May | 43 min |
| Jul 3, 2:53 PM EDT | Special Weather Statement | PHI | Cumberland | 37 min |
| Jul 3, 3:15 PM EDT | Special Weather Statement | PHI | Cumberland | 45 min |
| Jul 3, 4:09 PM EDT | Special Weather Statement | PHI | Cape May | 36 min |
| Jul 3, 5:44 PM EDT | Areal Flood Advisory | PHI | Atlantic | 2 hr |
| Jul 3, 5:50 PM EDT | Areal Flood Warning | PHI | Warren | 3 hr |
| Jul 3, 1:38 PM EDT | Special Weather Statement | PHI | Delaware | 52 min |
| Jul 3, 2:03 PM EDT | Areal Flood Advisory | PHI | Delaware | 2 hr |
| Jul 3, 6:39 PM EDT | Areal Flood Advisory | PHI | Bucks, Lehigh, Northampton | 2 hr |
| Jul 3, 3:34 PM EDT | Special Weather Statement | PHI | New Castle | 26 min |
| Jul 3, 4:59 PM EDT | Special Weather Statement | PHI | Caroline | 31 min |
Nearby
Special Weather Statements in Delaware, 2021Every 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.