Alert archive / Delaware / Special Weather Statements in 2020
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Aug 3, 2020, 3:05 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
- Aug 3, 2020, 3:05 PM EDT (19:05 UTC)
- Expired
- Aug 3, 2020, 3:30 PM EDT
- In force
- 25 min
- Issued by
- NWS Philadelphia/Mount Holly
County Sussex County, DE
The radar
The Dover AFB radar (KDOX), 19 km from the middle of the area, began a volume at 19:05 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, 7.1 hours before the alert went out and 80 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
- 1097 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 826 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted.
134 WWUS81 KPHI 031905 SPSPHI Special Weather Statement National Weather Service Mount Holly NJ 305 PM EDT Mon Aug 3 2020 DEZ003-031930- Inland Sussex- 305 PM EDT Mon Aug 3 2020 ...A STRONG THUNDERSTORM WILL AFFECT CENTRAL SUSSEX COUNTY... At 304 PM EDT, a strong thunderstorm was located near Sycamore, or near Georgetown, moving northeast at 25 mph. Wind gusts up to 40 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... Georgetown, Milton, Ellendale and Sycamore. LAT...LON 3852 7545 3855 7555 3888 7551 3879 7522 TIME...MOT...LOC 1904Z 202DEG 21KT 3864 7545 $$ 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, 3:27 PM EDT | Special Weather Statement | PHI | Sussex | 48 min |
| Aug 3, 3:40 PM EDT | Special Weather Statement | PHI | Talbot | 35 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 Delaware, 2020Every 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.