Alert archive / Delaware / Special Weather Statements in 2018
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at May 19, 2018, 4:17 PM EDT for Cumberland County, New Jersey; Kent County, Sussex County, Delaware. It was in force for 43 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
- May 19, 2018, 4:17 PM EDT (20:17 UTC)
- Expired
- May 19, 2018, 5:00 PM EDT
- In force
- 43 min
- Issued by
- NWS Philadelphia/Mount Holly
Counties Kent County, DE, Sussex County, DE, Cumberland County, NJ
The radar
The Dover AFB radar (KDOX), 52 km from the middle of the area, began a volume at 20:17 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, 8.3 hours before the alert went out and 148 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
- 92 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 518 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
492
WWUS81 KPHI 192017
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
417 PM EDT SAT MAY 19 2018
DEZ002-003-NJZ016-017-021>023-192100-
Inland Sussex-Kent-Salem-Cumberland-Atlantic-Cape May-Gloucester-
417 PM EDT SAT MAY 19 2018
...HEAVY SHOWERS WILL AFFECT NORTHEASTERN SUSSEX...KENT...
SOUTHWESTERN ATLANTIC...CUMBERLAND...CENTRAL SALEM...SOUTHEASTERN
GLOUCESTER AND NORTHWESTERN CAPE MAY COUNTIES...
At 415 PM EDT, radar indicated showers were located along a line
extending from near Seabrook Farms to Leesburg to near Milton.
Movement was northeast at 25 mph.
Torrential rainfall is occurring with these showers, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways. Rainfall amounts of up to 1.5 inches in an hour are
possible under the heaviest and most persistent shower bands.
Locations impacted include...
Vineland, Dover, Millville, Bridgeton, Cumberland, Smyrna, Milford,
Clayton, Buena, Laurel Lake, Alloway, Camden, Lewes, Weymouth,
Milton, Woodbine, Estell Manor, Newfield, Elmer and Cheswold.
LAT...LON 3918 7572 3935 7555 3936 7551 3933 7550
3934 7549 3933 7546 3936 7540 3945 7548
3962 7525 3969 7500 3942 7457 3932 7466
3933 7468 3931 7466 3927 7469 3899 7494
3881 7519 3877 7514 3862 7530
TIME...MOT...LOC 2015Z 210DEG 23KT 3952 7529 3923 7498 3875 7525
$$
JRKThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 3:07 PM EDT | Special Weather Statement | PHI | Cumberland, Salem | 68 min |
| May 19, 7:32 PM EDT | Marine Dense Fog Advisory | PHI | 16 hr | |
| May 19, 5:12 AM EDT | Areal Flood Advisory | PHI | Kent, Sussex | 3 hr |
| May 19, 7:52 AM EDT | Areal Flood Advisory | PHI | Kent, Sussex | 2 hr |
| May 19, 1:50 PM EDT | Areal Flood Advisory | PHI | Kent, Sussex | 4 hr |
Nearby
Special Weather Statements in Delaware, 2018Special Weather Statements in New Jersey, 2018Every special weather statement in 2018
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.