Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 7, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 16, 2015, 5:36 PM EDT for 5 counties in Pennsylvania. It was in force for 39 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 16, 2015, 5:36 PM EDT (21:36 UTC)
- Expired
- May 16, 2015, 6:15 PM EDT
- In force
- 39 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Berks County, PA, Bucks County, PA, Lehigh County, PA, Montgomery County, PA, Northampton County, PA
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 9.6 hours before the alert went out and 235 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
- 903 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 170 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
456 WUUS51 KPHI 162136 SVRPHI PAC011-017-077-091-095-162215- /O.NEW.KPHI.SV.W.0007.150516T2136Z-150516T2215Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 536 PM EDT SAT MAY 16 2015 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... LEHIGH COUNTY IN EASTERN PENNSYLVANIA... NORTHWESTERN MONTGOMERY COUNTY IN SOUTHEASTERN PENNSYLVANIA... NORTHWESTERN BUCKS COUNTY IN SOUTHEASTERN PENNSYLVANIA... SOUTHERN NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA... NORTHEASTERN BERKS COUNTY IN EASTERN PENNSYLVANIA... * UNTIL 615 PM EDT * AT 536 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED OVER CLAUSSVILLE...OR 10 MILES WEST OF ALLENTOWN...AND MOVING SOUTHEAST AT 20 MPH. * LOCATIONS IMPACTED INCLUDE... ALLENTOWN...BETHLEHEM...EMMAUS...HELLERTOWN...EAST GREENVILLE... ZIONSVILLE...CLAUSSVILLE...SCHNECKSVILLE...ANCIENT OAKS... COFFEETOWN...FOUNTAIN HILL...PENNSBURG...MACUNGIE...COOPERSBURG... ALBURTIS AND FULLERTON. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 4061 7582 4071 7570 4057 7532 4040 7550 TIME...MOT...LOC 2136Z 298DEG 18KT 4061 7567 $$ ROBERTSON
1 follow-up statement
192 WWUS51 KPHI 162200 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 600 PM EDT SAT MAY 16 2015 PAC011-017-077-091-095-162215- /O.CON.KPHI.SV.W.0007.000000T0000Z-150516T2215Z/ LEHIGH PA-MONTGOMERY PA-BUCKS PA-NORTHAMPTON PA-BERKS PA- 600 PM EDT SAT MAY 16 2015 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR SOUTHEASTERN LEHIGH...NORTHWESTERN MONTGOMERY...NORTHWESTERN BUCKS...SOUTHERN NORTHAMPTON AND EASTERN BERKS COUNTIES... AT 559 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED OVER ANCIENT OAKS...OR NEAR ALLENTOWN... MOVING SOUTHEAST AT 20 MPH. LOCATIONS IMPACTED INCLUDE... ALLENTOWN...EMMAUS...HELLERTOWN...EAST GREENVILLE...ANCIENT OAKS... ZIONSVILLE...CLAUSSVILLE...PENNSBURG...MACUNGIE...COOPERSBURG AND ALBURTIS. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 4058 7571 4064 7565 4057 7532 4040 7550 TIME...MOT...LOC 2159Z 300DEG 15KT 4057 7559 $$ ROBERTSON
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 4:46 PM EDT | Special Weather Statement | PHI | Pike | 44 min |
| May 16, 4:55 PM EDT | Special Weather Statement | PHI | Lehigh | 35 min |
| May 16, 5:09 PM EDT | Special Weather Statement | PHI | Berks, Chester | 66 min |
| May 16, 5:26 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 49 min |
| May 16, 5:57 PM EDT | Special Weather Statement | PHI | Berks, Chester, Lehigh, Montgomery | 63 min |
| May 16, 6:03 PM EDT | Areal Flood Advisory | PHI | Monroe | 3 hr |
| May 16, 6:16 PM EDT | Special Weather Statement | PHI | Lehigh | 44 min |
| May 16, 6:31 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery | 44 min |
| May 16, 6:45 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 45 min |
| May 16, 6:55 PM EDT | Areal Flood Advisory | PHI | Monroe, Northampton | 3 hr |
| May 16, 6:58 PM EDT | Special Weather Statement | PHI | Monroe | 62 min |
| May 16, 7:04 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 26 min |
| May 16, 7:34 PM EDT | Special Weather Statement | PHI | Bucks | 41 min |
| May 16, 7:35 PM EDT | Special Weather Statement | PHI | Delaware | 40 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2015Every severe thunderstorm warning in 2015
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.