Alert archive / New Jersey / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 113, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 25, 2010, 2:41 PM EDT for 4 counties in New Jersey; Bucks County, Lehigh County, Northampton County, Pennsylvania. It was in force for 64 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
- Jul 25, 2010, 2:41 PM EDT (18:41 UTC)
- Expired
- Jul 25, 2010, 3:45 PM EDT
- In force
- 64 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Hunterdon County, NJ, Mercer County, NJ, Somerset County, NJ, Warren County, NJ, Bucks County, PA, Lehigh County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 82 km from the middle of the area, began a volume at 18:42 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 |
|---|---|---|---|
| Jul 25, 3:00 PM EDT | TSTM WND DMG | Ottsville, PA | FEW TREES DOWN IN BUCKS COUNTY. |
| Jul 25, 3:05 PM EDT | TSTM WND DMG | 1 Wsw Sergeantsville, NJ | TREES DOWN IN DELAWARE TOWNSHIP. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 25, 11:29 AM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 6.7 hours before the alert went out and 180 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
- 45 J/kg
- Mixed-layer CIN
- -339 J/kg
- Mixed-layer LCL
- 1287 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- -52 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
293 WUUS51 KPHI 251841 SVRPHI NJC019-021-035-041-PAC017-077-095-251945- /O.NEW.KPHI.SV.W.0113.100725T1841Z-100725T1945Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 241 PM EDT SUN JUL 25 2010 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN MERCER COUNTY IN CENTRAL NEW JERSEY... SOUTHEASTERN LEHIGH COUNTY IN EASTERN PENNSYLVANIA... THIS INCLUDES THE CITY OF ALLENTOWN... SOUTHEASTERN NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA... THIS INCLUDES THE CITY OF EASTON... NORTHERN SOMERSET COUNTY IN NORTHERN NEW JERSEY... THIS INCLUDES THE CITY OF SOMERVILLE... HUNTERDON COUNTY IN NORTHWEST NEW JERSEY... SOUTHWESTERN WARREN COUNTY IN NORTHWEST NEW JERSEY... BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA... * UNTIL 345 PM EDT * AT 237 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS STORM WAS LOCATED NEAR BETHLEHEM...OR 7 MILES NORTHEAST OF ALLENTOWN...AND MOVING SOUTHEAST AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... RIEGELSVILLE AND ALPHA AROUND 250 PM EDT... FERNDALE AROUND 255 PM EDT... MILFORD AND REVERE AROUND 300 PM EDT... FRENCHTOWN AND ERWINNA AROUND 305 PM EDT... SAND BROOK AND SERGEANTSVILLE AROUND 315 PM EDT... FLEMINGTON AROUND 320 PM EDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... THE LEHIGH VALLEY INTERNATIONAL AIRPORT JUST HAD A WIND GUST TO NEARLY 70 MPH. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT SUNDAY EVENING FOR NORTHERN DELAWARE AND NORTHEAST MARYLAND AND NEW JERSEY AND EASTERN PENNSYLVANIA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY EVENING FOR SOUTHERN DELAWARE AND NORTHEASTERN MARYLAND. && LAT...LON 4064 7451 4017 7503 4054 7558 4080 7518 TIME...MOT...LOC 1841Z 294DEG 35KT 4063 7533 $$ GIGI
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 11:26 PM EDT | Special Weather Statement | PHI | Hunterdon | 49 min |
| Jul 25, 12:09 AM EDT | Special Weather Statement | PHI | Somerset | 66 min |
| Jul 25, 1:33 PM EDT | Special Weather Statement | PHI | Morris, Sussex, Warren | 87 min |
| Jul 25, 1:48 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 42 min |
| Jul 25, 1:59 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 61 min |
| Jul 25, 2:14 PM EDT | Special Weather Statement | PHI | Camden, Gloucester, Salem | 2 hr |
| Jul 25, 2:25 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 80 min |
| Jul 25, 2:45 PM EDT | Tornado Warning | PHI | Gloucester, Salem | 30 min |
| Jul 25, 3:10 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Hunterdon, Mercer, Middlesex, Monmouth, Ocean and 1 more | 80 min |
| Jul 25, 3:18 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Gloucester | 57 min |
| Jul 25, 3:27 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden, Cape May, Cumberland, Gloucester, Salem | 93 min |
| Jul 25, 3:28 PM EDT | Special Marine Warning | PHI | 2 hr | |
| Jul 25, 3:32 PM EDT | Special Marine Warning | PHI | 118 min | |
| Jul 25, 3:40 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Ocean | 79 min |
| Jul 25, 4:02 PM EDT | Special Marine Warning | PHI | 118 min | |
| Jul 25, 4:11 PM EDT | Tornado Warning | PHI | Atlantic, Cape May, Cumberland | 34 min |
| Jul 25, 5:19 PM EDT | Special Weather Statement | PHI | Cape May | 56 min |
| Jul 25, 5:53 PM EDT | Special Marine Warning | PHI | 67 min | |
| Jul 24, 9:38 PM EDT | Special Weather Statement | PHI | Carbon | 52 min |
| Jul 24, 10:32 PM EDT | Special Weather Statement | PHI | Berks, Lehigh | 58 min |
| Jul 25, 12:53 PM EDT | Special Weather Statement | PHI | Berks, Carbon, Chester, Lehigh, Monroe, Northampton | 112 min |
| Jul 25, 1:30 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 75 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2010Severe Thunderstorm Warnings in Pennsylvania, 2010Every severe thunderstorm warning in 2010
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.