Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 172, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 13, 2016, 8:16 PM EDT for 4 counties in Pennsylvania. It was in force for 44 min. 1 report 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 13, 2016, 8:16 PM EDT (00:16 UTC)
- Expired
- Aug 13, 2016, 9:00 PM EDT
- In force
- 44 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Berks County, PA, Bucks County, PA, Lehigh County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 107 km from the middle of the area, began a volume at 00:18 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 13, 8:16 PM EDT | TSTM WND DMG | Upper Saucon Twp, PA | WIRES BLOWN DOWN...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 00:00Z, 0.3 hours before the alert went out and 228 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
- 2471 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 1619 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
255 WUUS51 KPHI 140016 SVRPHI PAC011-017-077-091-140100- /O.NEW.KPHI.SV.W.0172.160814T0016Z-160814T0100Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 816 PM EDT SAT AUG 13 2016 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN LEHIGH COUNTY IN EASTERN PENNSYLVANIA... EAST CENTRAL BERKS COUNTY IN EASTERN PENNSYLVANIA... NORTHWESTERN BUCKS COUNTY IN SOUTHEASTERN PENNSYLVANIA... NORTHWESTERN MONTGOMERY COUNTY IN SOUTHEASTERN PENNSYLVANIA... * UNTIL 900 PM EDT * AT 815 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER BALLY...OR 11 MILES SOUTH OF ALLENTOWN...MOVING EAST AT 30 MPH. HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. SOURCE...RADAR INDICATED. IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. * LOCATIONS IMPACTED INCLUDE... ALLENTOWN...EMMAUS...QUAKERTOWN...PERKASIE...SOUDERTON... BEDMINSTER...CHALFONT...HATFIELD...EAST GREENVILLE...DUBLIN... BALLY...BECHTELSVILLE...GREEN LANE...PLEASANT VALLEY...GERYVILLE... FRICKS...ZIONSVILLE...OTTSVILLE...GILBERTSVILLE AND ANCIENT OAKS. PRECAUTIONARY/PREPAREDNESS ACTIONS... FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING. && LAT...LON 4036 7585 4059 7556 4048 7512 4025 7522 TIME...MOT...LOC 0015Z 282DEG 25KT 4043 7556 HAIL...0.75IN WIND...60MPH $$ MWG
2 follow-up statements
755 WWUS51 KPHI 140046 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 846 PM EDT SAT AUG 13 2016 PAC011-017-077-091-140100- /O.CON.KPHI.SV.W.0172.000000T0000Z-160814T0100Z/ LEHIGH PA-BERKS PA-BUCKS PA-MONTGOMERY PA- 846 PM EDT SAT AUG 13 2016 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR SOUTHEASTERN LEHIGH...EAST CENTRAL BERKS...NORTHWESTERN BUCKS AND NORTHWESTERN MONTGOMERY COUNTIES... AT 846 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER QUAKERTOWN...OR 14 MILES SOUTHEAST OF ALLENTOWN...MOVING EAST AT 25 MPH. HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. SOURCE...RADAR INDICATED. IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. LOCATIONS IMPACTED INCLUDE... ALLENTOWN...EMMAUS...QUAKERTOWN...PERKASIE...SOUDERTON... BEDMINSTER...CHALFONT...HATFIELD...EAST GREENVILLE...DUBLIN... BALLY...BECHTELSVILLE...GREEN LANE...PLEASANT VALLEY...GERYVILLE... FRICKS...ZIONSVILLE...OTTSVILLE...GILBERTSVILLE AND TELFORD. PRECAUTIONARY/PREPAREDNESS ACTIONS... FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING. && LAT...LON 4033 7569 4058 7550 4048 7512 4025 7522 TIME...MOT...LOC 0046Z 276DEG 22KT 4042 7533 HAIL...0.75IN WIND...60MPH $$ MWG
686
WWUS51 KPHI 140056
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
856 PM EDT SAT AUG 13 2016
PAC011-017-077-091-140105-
/O.EXP.KPHI.SV.W.0172.000000T0000Z-160814T0100Z/
LEHIGH PA-BERKS PA-BUCKS PA-MONTGOMERY PA-
856 PM EDT SAT AUG 13 2016
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LEHIGH...EAST
CENTRAL BERKS...NORTHWESTERN BUCKS AND NORTHWESTERN MONTGOMERY
COUNTIES WILL EXPIRE AT 900 PM EDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.
LAT...LON 4033 7569 4058 7550 4048 7512 4025 7522
TIME...MOT...LOC 0051Z 282DEG 25KT 4042 7533
$$
MWGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 8:05 PM EDT | Special Weather Statement | PHI | Northampton | 40 min |
| Aug 13, 8:27 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 48 min |
| Aug 13, 9:00 PM EDT | Special Weather Statement | PHI | Bucks | 45 min |
| Aug 13, 9:28 PM EDT | Special Weather Statement | PHI | Carbon, Monroe | 47 min |
| Aug 13, 9:55 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe, Northampton | 50 min |
| Aug 13, 10:35 PM EDT | Areal Flood Advisory | PHI | Carbon, Monroe | 4 hr |
| Aug 13, 10:46 PM EDT | Special Weather Statement | PHI | Monroe | 44 min |
| Aug 13, 11:15 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 45 min |
| Aug 13, 11:46 PM EDT | Special Weather Statement | PHI | Monroe | 29 min |
| Aug 14, 12:30 AM EDT | Special Weather Statement | PHI | Monroe | 45 min |
| Aug 14, 6:24 PM EDT | Special Weather Statement | PHI | Monroe | 51 min |
| Aug 14, 6:57 PM EDT | Special Weather Statement | PHI | Berks | 48 min |
| Aug 14, 7:31 PM EDT | Special Weather Statement | PHI | Montgomery | 44 min |
| Aug 14, 7:56 PM EDT | Special Weather Statement | PHI | Chester | 49 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2016Every severe thunderstorm warning in 2016
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.