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 7, 2018, 8:10 PM EDT for Talbot County, Maryland. It was in force for 50 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 7, 2018, 8:10 PM EDT (00:10 UTC)
- Expired
- Aug 7, 2018, 9:00 PM EDT
- In force
- 50 min
- Issued by
- NWS Philadelphia/Mount Holly
County Talbot County, MD
The radar
The Dover AFB radar (KDOX), 66 km from the middle of the area, began a volume at 00:12 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
Washington/Dulle, VA (KIAD), launched 00:00Z, 0.2 hours before the alert went out and 109 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
- 500 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 1138 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
089
WWUS81 KPHI 080010
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
810 PM EDT TUE AUG 7 2018
MDZ019-080100-
Talbot-
810 PM EDT TUE AUG 7 2018
...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN TALBOT COUNTY...
At 810 PM EDT, a strong thunderstorm was located over Chesapeake Bay
off southern Talbot County, moving east at 20 mph.
Winds up to 40 mph are possible with this storm.
Locations that may be impacted include...
Easton, Trappe, Oxford, Hambleton, Windyhill and Tilghman Island.
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 3878 7632 3878 7630 3876 7632 3877 7598
3873 7601 3868 7595 3865 7595 3860 7599
3857 7604 3863 7608 3864 7615 3868 7617
3868 7621 3871 7624 3875 7622 3871 7627
3875 7631 3867 7634 3874 7634 3876 7638
TIME...MOT...LOC 0009Z 272DEG 18KT 3861 7636
$$
IovinoThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 8:28 PM EDT | Special Weather Statement | PHI | Monmouth | 47 min |
| Aug 7, 8:46 PM EDT | Special Weather Statement | PHI | Mercer | 44 min |
| Aug 7, 9:06 PM EDT | Areal Flood Advisory | PHI | Monmouth | 114 min |
| Aug 7, 9:16 PM EDT | Flash Flood Warning | PHI | Middlesex, Monmouth | 4 hr |
| Aug 7, 11:33 PM EDT | Special Weather Statement | PHI | Atlantic, Cumberland | 27 min |
| Aug 8, 12:23 AM EDT | Special Weather Statement | PHI | Atlantic | 67 min |
| Aug 8, 6:40 PM EDT | Special Weather Statement | PHI | Middlesex | 35 min |
| Aug 8, 3:02 PM EDT | Special Weather Statement | PHI | Chester | 43 min |
| Aug 8, 3:40 PM EDT | Special Weather Statement | PHI | Chester | 35 min |
| Aug 8, 4:23 PM EDT | Special Weather Statement | PHI | New Castle | 37 min |
| Aug 7, 8:51 PM EDT | Special Weather Statement | PHI | Caroline | 39 min |
Nearby
Special Weather Statements in Maryland, 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.