Alert archive / Maryland / Special Weather Statements in 2018
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Aug 9, 2018, 12:03 AM EDT for Kent County, Delaware; Caroline County, Kent County, Queen Anne's County, Maryland. It was in force for 57 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 9, 2018, 12:03 AM EDT (04:03 UTC)
- Expired
- Aug 9, 2018, 1:00 AM EDT
- In force
- 57 min
- Issued by
- NWS Philadelphia/Mount Holly
Counties Kent County, DE, Caroline County, MD, Kent County, MD, Queen Anne's County, MD
The radar
The Dover AFB radar (KDOX), 33 km from the middle of the area, began a volume at 04:05 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 00:00Z, 4.1 hours before the alert went out and 132 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
- 2589 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 994 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
715
WWUS81 KPHI 090403
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
1203 AM EDT THU AUG 9 2018
DEZ001>003-MDZ008-012-015-020-NJZ021-090500-
Inland Sussex-Kent-New Castle-Queen
Anne's-Cecil-Kent-Caroline-Cumberland-
1203 AM EDT THU AUG 9 2018
...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN SUSSEX...
SOUTHWESTERN NEW CASTLE...KENT...QUEEN ANNE'S...CAROLINE...KENT...
SOUTHEASTERN CECIL AND SOUTH CENTRAL CUMBERLAND COUNTIES...
At 1203 AM EDT, a cluster of strong thunderstorms was near
Sudlersville, or 11 miles northeast of Centerville, moving east at 35
mph.
Winds up to 40 mph are possible with this storm.
Locations impacted include...
Dover, Centerville, Smyrna, Milford, Chestertown, Denton,
Centreville, Harrington, Camden, Clayton, Bridgeville, Greensboro,
Oakland, Ridgely, Cheswold, Church Hill, Cecilton, Millington,
Sudlersville and Ellendale.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
LAT...LON 3946 7597 3933 7545 3922 7539 3926 7520
3922 7505 3922 7510 3918 7513 3922 7517
3921 7539 3907 7541 3901 7533 3893 7532
3889 7529 3861 7549 3886 7594 3892 7595
3894 7608 3903 7624 3911 7625
TIME...MOT...LOC 0403Z 287DEG 29KT 3913 7588
$$
MeolaThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 8:09 PM EDT | Areal Flood Advisory | PHI | Burlington, Mercer, Monmouth | 3 hr |
| Aug 8, 9:58 PM EDT | Special Weather Statement | PHI | Monmouth | 32 min |
| Aug 9, 2:06 AM EDT | Special Weather Statement | PHI | Morris | 24 min |
| Aug 9, 5:29 PM EDT | Coastal Flood Advisory | PHI | Burlington, Mercer | 10 hr |
| Aug 8, 10:42 PM EDT | Special Weather Statement | PHI | New Castle | 63 min |
Nearby
Special Weather Statements in Maryland, 2018Special Weather Statements in Delaware, 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.