Alert archive / Pennsylvania / Special Weather Statements in 2017
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Aug 3, 2017, 7:16 PM EDT for Lehigh County, Pennsylvania. It was in force for 44 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 3, 2017, 7:16 PM EDT (23:16 UTC)
- Expired
- Aug 3, 2017, 8:00 PM EDT
- In force
- 44 min
- Issued by
- NWS Philadelphia/Mount Holly
County Lehigh County, PA
The radar
The Philadelphia radar (KDIX), 126 km from the middle of the area, began a volume at 23:19 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, 11.3 hours before the alert went out and 232 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
- 236 J/kg
- Mixed-layer CIN
- -161 J/kg
- Mixed-layer LCL
- 1183 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
034 WWUS81 KPHI 032316 SPSPHI Special Weather Statement National Weather Service Mount Holly NJ 716 PM EDT THU AUG 3 2017 PAZ060-061-040000- Lehigh-Berks- 716 PM EDT THU AUG 3 2017 ...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN BERKS AND CENTRAL LEHIGH COUNTIES... At 716 PM EDT, a strong thunderstorm was located near Topton, or 12 miles west of Allentown, moving northeast at 5 mph. Winds up to 50 mph and half inch hail are possible with this storm. Locations impacted include... Allentown, Emmaus, Kutztown, Topton, Lyons, Neffs, Coffeetown, Jordan Valley, Ancient Oaks, Schnecksville, Claussville, Macungie, Alburtis and Fullerton. Torrential rainfall is also occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways. LAT...LON 4043 7568 4055 7585 4077 7568 4058 7541 TIME...MOT...LOC 2316Z 222DEG 6KT 4055 7570 $$ CMS
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 2:47 PM EDT | Special Marine Warning | PHI | 58 min | |
| Aug 3, 3:35 PM EDT | Special Marine Warning | PHI | 85 min | |
| Aug 3, 4:44 PM EDT | Special Weather Statement | PHI | Mercer | 31 min |
| Aug 3, 4:47 PM EDT | Special Marine Warning | PHI | 88 min | |
| Aug 3, 4:51 PM EDT | Special Weather Statement | PHI | Salem | 24 min |
| Aug 3, 5:07 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Monmouth, Ocean | 38 min |
| Aug 3, 5:17 PM EDT | Flash Flood Warning | PHI | Burlington, Mercer | 4 hr |
| Aug 3, 5:42 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer | 48 min |
| Aug 3, 5:54 PM EDT | Special Weather Statement | PHI | Somerset | 36 min |
| Aug 3, 6:06 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 39 min |
| Aug 3, 6:38 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden | 4 hr |
| Aug 3, 6:50 PM EDT | Special Weather Statement | PHI | Mercer | 55 min |
| Aug 3, 6:54 PM EDT | Special Weather Statement | PHI | Hunterdon | 66 min |
| Aug 3, 7:25 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer | 4 hr |
| Aug 3, 7:34 PM EDT | Special Weather Statement | PHI | Hunterdon, Mercer | 41 min |
| Aug 3, 7:47 PM EDT | Special Weather Statement | PHI | Morris | 43 min |
| Aug 3, 3:31 PM EDT | Special Weather Statement | PHI | Bucks, Philadelphia | 44 min |
| Aug 3, 5:57 PM EDT | Special Weather Statement | PHI | Delaware | 33 min |
| Aug 3, 6:15 PM EDT | Special Weather Statement | PHI | Philadelphia | 30 min |
| Aug 3, 6:34 PM EDT | Special Weather Statement | PHI | Lehigh | 41 min |
| Aug 3, 7:37 PM EDT | Special Weather Statement | PHI | Lehigh | 38 min |
| Aug 2, 8:38 PM EDT | Special Weather Statement | PHI | Kent | 37 min |
| Aug 2, 9:12 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 34 min |
| Aug 3, 5:33 PM EDT | Areal Flood Advisory | PHI | Caroline | 4 hr |
| Aug 3, 1:54 PM EDT | Special Weather Statement | PHI | Sussex | 21 min |
| Aug 3, 2:12 PM EDT | Special Weather Statement | PHI | Sussex | 33 min |
| Aug 3, 2:15 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 45 min |
| Aug 3, 2:26 PM EDT | Special Weather Statement | PHI | Sussex | 49 min |
| Aug 3, 2:59 PM EDT | Special Weather Statement | PHI | Kent, Sussex | 46 min |
| Aug 3, 3:46 PM EDT | Areal Flood Advisory | PHI | Kent, Sussex | 4 hr |
| Aug 3, 4:17 PM EDT | Flash Flood Warning | PHI | Kent, Sussex | 4 hr |
| Aug 3, 5:01 PM EDT | Special Weather Statement | PHI | Kent | 29 min |
| Aug 3, 5:20 PM EDT | Special Weather Statement | PHI | Sussex | 25 min |
| Aug 3, 5:49 PM EDT | Areal Flood Advisory | PHI | Sussex | 4 hr |
| Aug 3, 6:12 PM EDT | Areal Flood Advisory | PHI | Sussex | 3 hr |
| Aug 3, 6:31 PM EDT | Special Weather Statement | PHI | Sussex | 29 min |
| Aug 3, 7:02 PM EDT | Flash Flood Warning | PHI | Sussex | 3 hr |
Nearby
Special Weather Statements in Pennsylvania, 2017Every special weather statement in 2017
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.