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 Aug 6, 2019, 12:13 PM EDT for Philadelphia County, Pennsylvania. It was in force for 47 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 6, 2019, 12:13 PM EDT (16:13 UTC)
- Expired
- Aug 6, 2019, 1:00 PM EDT
- In force
- 47 min
- Issued by
- NWS Philadelphia/Mount Holly
County Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 70 km from the middle of the area, began a volume at 16:13 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 6, 12:18 PM EDT | HAIL 0.25 | Narberth, PA | |
| Aug 6, 12:36 PM EDT | TSTM WND DMG | 1 Ssw Flourtown, PA | DOWNED WIRES NEAR MONTGOMERY AVENUE AND BETHLEHEM PIKE. TIME ESTIMATED FROM RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 4.2 hours before the alert went out and 219 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
- 291 J/kg
- Mixed-layer CIN
- -133 J/kg
- Mixed-layer LCL
- 1110 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
121 WWUS81 KPHI 061613 SPSPHI Special Weather Statement National Weather Service Mount Holly NJ 1213 PM EDT Tue Aug 6 2019 PAZ070-071-104-061700- Eastern Montgomery-Delaware-Philadelphia- 1213 PM EDT Tue Aug 6 2019 ...A STRONG THUNDERSTORM WILL AFFECT SOUTH CENTRAL MONTGOMERY... WESTERN PHILADELPHIA AND NORTHEASTERN DELAWARE COUNTIES... At 1212 PM EDT, a strong thunderstorm was located over Narberth, or 7 miles west of Philadelphia. The storm is nearly stationary. Wind gusts up to 40 mph and penny size hail are possible with this storm. Locations impacted include... Philadelphia, Yeadon, Conshohocken, Narberth, East Lansdowne, Morris Park, Germantown, Center City, Bryn Mawr, Kensington, Roxborough, Chestnut Hill, Plymouth Meeting, Drexel Hill, Radnor Township, Darby, Lansdowne, Sharon Hill, Colwyn and West Conshohocken. If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways. LAT...LON 3990 7525 4006 7537 4012 7523 3999 7507 TIME...MOT...LOC 1612Z 255DEG 1KT 4004 7526 $$ Staarmann
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 9:04 AM EDT | Areal Flood Advisory | PHI | Atlantic | 74 min |
| Aug 6, 12:05 PM EDT | Special Weather Statement | PHI | Cumberland | 40 min |
| Aug 6, 12:51 PM EDT | Areal Flood Advisory | PHI | Cumberland | 108 min |
| Aug 6, 1:09 PM EDT | Special Weather Statement | PHI | Gloucester | 36 min |
| Aug 6, 1:13 PM EDT | Special Weather Statement | PHI | Monmouth | 32 min |
| Aug 6, 1:14 PM EDT | Special Weather Statement | PHI | Ocean | 31 min |
| Aug 6, 1:30 PM EDT | Special Weather Statement | PHI | Gloucester | 30 min |
| Aug 6, 1:34 PM EDT | Special Weather Statement | PHI | Atlantic | 41 min |
| Aug 6, 1:38 PM EDT | Special Weather Statement | PHI | Monmouth | 37 min |
| Aug 6, 1:50 PM EDT | Special Weather Statement | PHI | Ocean | 40 min |
| Aug 6, 2:14 PM EDT | Areal Flood Advisory | PHI | Atlantic, Cape May, Cumberland | 3 hr |
| Aug 6, 2:19 PM EDT | Special Weather Statement | PHI | Atlantic | 41 min |
| Aug 6, 2:33 PM EDT | Special Weather Statement | PHI | Ocean | 27 min |
| Aug 6, 3:07 PM EDT | Special Weather Statement | PHI | Burlington | 23 min |
| Aug 6, 3:30 PM EDT | Small Craft Advisory | PHI | 36 hr | |
| Aug 6, 3:55 PM EDT | Special Weather Statement | PHI | Middlesex, Somerset | 50 min |
| Aug 6, 7:10 PM EDT | Special Weather Statement | PHI | Warren | 35 min |
| Aug 6, 7:32 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 43 min |
| Aug 6, 11:46 AM EDT | Special Weather Statement | PHI | Philadelphia | 29 min |
| Aug 6, 12:21 PM EDT | Areal Flood Advisory | PHI | Montgomery, Philadelphia | 102 min |
| Aug 6, 12:36 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery, Philadelphia | 39 min |
| Aug 6, 1:18 PM EDT | Special Weather Statement | PHI | Bucks | 27 min |
| Aug 6, 2:35 PM EDT | Special Weather Statement | PHI | Monroe | 25 min |
| Aug 6, 3:05 PM EDT | Special Weather Statement | PHI | Monroe | 25 min |
| Aug 6, 4:40 PM EDT | Special Weather Statement | PHI | Carbon | 35 min |
| Aug 6, 5:51 PM EDT | Special Weather Statement | PHI | Monroe | 39 min |
| Aug 6, 6:32 PM EDT | Special Weather Statement | PHI | Monroe | 28 min |
| Aug 6, 6:38 PM EDT | Special Weather Statement | PHI | Carbon | 37 min |
| Aug 6, 6:57 PM EDT | Flash Flood Warning | PHI | Monroe | 104 min |
| Aug 6, 1:54 PM EDT | Special Weather Statement | PHI | Sussex | 36 min |
| Aug 6, 2:26 PM EDT | Areal Flood Advisory | PHI | Sussex | 3 hr |
| Aug 6, 3:04 PM EDT | Special Weather Statement | PHI | Sussex | 26 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.