Alert archive / Pennsylvania / Special Weather Statements in 2019
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at May 23, 2019, 3:08 PM EDT for 4 counties in Pennsylvania. It was in force for 37 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 23, 2019, 3:08 PM EDT (19:08 UTC)
- Expired
- May 23, 2019, 3:45 PM EDT
- In force
- 37 min
- Issued by
- NWS Philadelphia/Mount Holly
Counties Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 98 km from the middle of the area, began a volume at 19:09 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 12:00Z, 7.1 hours before the alert went out and 225 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1112 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 219 m²/s²
- 0-3 km storm-relative helicity
- 215 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
655
WWUS81 KPHI 231908
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
308 PM EDT Thu May 23 2019
DEZ001-NJZ009-PAZ061-070-071-101>106-231945-
New Castle-Hunterdon-Lower Bucks-Upper Bucks-Lehigh-Eastern
Montgomery-Western Montgomery-Delaware-Western Chester-Eastern
Chester-Philadelphia-
308 PM EDT Thu May 23 2019
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHERN NEW CASTLE...
SOUTHWESTERN HUNTERDON...MONTGOMERY...SOUTHEASTERN LEHIGH...BUCKS...
CHESTER...NORTHWESTERN PHILADELPHIA AND DELAWARE COUNTIES...
At 308 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Zionsville to near Pughtown to near West
Grove. Movement was east at 55 mph.
Wind gusts up to 40 mph and pea size hail are possible with these
storms.
Locations impacted include...
Philadelphia, Wilmington, West Chester, Norristown, Chester,
Pottstown, Phoenixville, Lansdale, West Norriton, East Norriton,
Coatesville, Emmaus, Westtown, Quakertown, Perkasie, Doylestown,
Byram, Carneys Point, Downingtown and Conshohocken.
If outdoors, consider seeking shelter inside a building.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
To report severe weather, contact your nearest law enforcement
agency. They can relay your report to the National Weather Service
office in Mount Holly NJ.
A severe thunderstorm watch remains in effect until 800 PM EDT for
eastern and southeastern Pennsylvania.
LAT...LON 4017 7567 4037 7560 4044 7553 4047 7556
4053 7554 4055 7536 4054 7533 4056 7530
4061 7492 4026 7503 3972 7548 3976 7598
TIME...MOT...LOC 1908Z 257DEG 49KT 4048 7552 4018 7563 3983 7589
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 3:24 AM EDT | Small Craft Advisory | PHI | 28 hr | |
| May 23, 2:46 PM EDT | Special Weather Statement | PHI | Morris, Sussex, Warren | 29 min |
| May 23, 3:36 PM EDT | Special Weather Statement | PHI | Camden, Mercer, Middlesex, Somerset | 24 min |
| May 23, 5:40 PM EDT | Special Marine Warning | PHI | 29 min | |
| May 23, 2:11 PM EDT | Special Weather Statement | PHI | Carbon, Monroe | 34 min |
| May 23, 2:24 PM EDT | Special Weather Statement | PHI | Berks, Lehigh | 36 min |
| May 23, 5:01 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 37 min |
| May 23, 5:37 PM EDT | Special Weather Statement | PHI | Sussex | 38 min |
| May 23, 3:53 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 52 min |
| May 23, 4:27 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 63 min |
Nearby
Special Weather Statements in Pennsylvania, 2019Every special weather statement in 2019
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.