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 Jan 23, 2018, 2:25 PM EST for Kent County, Delaware. It was in force for 20 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
- Jan 23, 2018, 2:25 PM EST (19:25 UTC)
- Expired
- Jan 23, 2018, 2:45 PM EST
- In force
- 20 min
- Issued by
- NWS Philadelphia/Mount Holly
County Kent County, DE
The radar
The Dover AFB radar (KDOX), 15 km from the middle of the area, began a volume at 19:24 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, 7.4 hours before the alert went out and 113 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
- 23 J/kg
- Mixed-layer CIN
- -149 J/kg
- Mixed-layer LCL
- 592 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 238 m²/s²
- 0-3 km storm-relative helicity
- 268 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
881
WWUS81 KPHI 231925
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
225 PM EST TUE JAN 23 2018
DEZ002-003-231945-
Inland Sussex-Kent-
225 PM EST TUE JAN 23 2018
...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL SUSSEX AND
SOUTHEASTERN KENT COUNTIES...
At 224 PM EST, a strong thunderstorm was located near Big Stone
Beach, or 14 miles southeast of Dover, moving east at 25 mph.
Winds up to 45 mph, brief heavy downpours and isolated cloud to
ground lightning strikes are possible with this storm. Lightning can
strike 10 miles away from a thunderstorm. Seek a safe shelter inside
a building or vehicle.
This storm will be near...
Big Stone Beach around 235 PM EST.
Other locations impacted by this storm include Frederica and
Riverview.
LAT...LON 3884 7546 3905 7550 3907 7541 3901 7533
3898 7531 3895 7532 3894 7531 3893 7532
3887 7525
TIME...MOT...LOC 1924Z 260DEG 22KT 3898 7539
$$
JRKThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 23, 5:35 AM EST | Areal Flood Advisory | PHI | Sussex, Warren | 4 hr |
| Jan 23, 6:00 AM EST | Areal Flood Advisory | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more | 4 hr |
| Jan 23, 8:26 AM EST | Special Marine Warning | PHI | 49 min | |
| Jan 23, 10:23 AM EST | Special Marine Warning | PHI | 52 min | |
| Jan 23, 10:42 AM EST | Special Weather Statement | PHI | Hunterdon, Salem, Somerset | 48 min |
| Jan 23, 11:01 AM EST | Special Marine Warning | PHI | 59 min | |
| Jan 23, 11:08 AM EST | Special Marine Warning | PHI | 67 min | |
| Jan 23, 11:23 AM EST | Special Weather Statement | PHI | Burlington, Hunterdon, Mercer, Middlesex, Morris, Somerset | 37 min |
| Jan 23, 11:52 AM EST | Special Marine Warning | PHI | 38 min | |
| Jan 23, 11:58 AM EST | Special Weather Statement | PHI | Mercer, Middlesex, Monmouth | 47 min |
| Jan 23, 12:10 PM EST | Special Marine Warning | PHI | 65 min | |
| Jan 23, 1:38 PM EST | Special Marine Warning | PHI | 82 min | |
| Jan 23, 2:27 PM EST | Special Weather Statement | PHI | Atlantic | 33 min |
| Jan 23, 2:51 PM EST | Special Weather Statement | PHI | Atlantic, Cape May | 39 min |
| Jan 23, 9:58 AM EST | Special Weather Statement | PHI | Chester | 47 min |
| Jan 23, 10:59 AM EST | Areal Flood Advisory | PHI | Sussex | 4 hr |
| Jan 23, 1:28 PM EST | Special Weather Statement | PHI | Kent | 32 min |
| Jan 23, 2:16 PM EST | Special Weather Statement | PHI | Sussex | 29 min |
Nearby
Special 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.