Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 62, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 12, 2007, 2:00 PM EDT for Carbon County, Lehigh County, Northampton County, Pennsylvania. It was in force for 30 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
- Jun 12, 2007, 2:00 PM EDT (18:00 UTC)
- Expired
- Jun 12, 2007, 2:30 PM EDT
- In force
- 30 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
Counties Carbon County, PA, Lehigh County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 133 km from the middle of the area, began a volume at 18:01 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 12, 12:55 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 6.0 hours before the alert went out and 147 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
- 186 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 1120 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 25 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.
000 WUUS51 KPHI 121801 SVRPHI PAC025-077-095-121845- /O.NEW.KPHI.SV.W.0062.070612T1800Z-070612T1845Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 200 PM EDT TUE JUN 12 2007 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN LEHIGH COUNTY IN EASTERN PENNSYLVANIA... WEST CENTRAL NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA... SOUTHEASTERN CARBON COUNTY IN NORTHEAST PENNSYLVANIA... * UNTIL 245 PM EDT * AT 156 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS NEAR 60 MPH. THIS STORM WAS LOCATED NEAR PALMERTON...OR ABOUT 14 MILES NORTH OF ALLENTOWN...AND MOVING SOUTHWEST AT 15 TO 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... SCHNECKSVILLE BY 210 PM EDT... 8 MILES NORTHWEST OF ANCIENT OAKS BY 225 PM EDT... LAT...LON 4082 7543 4090 7564 4066 7584 4048 7558 $$ JRP
1 follow-up statement
000 WWUS51 KPHI 121830 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 229 PM EDT TUE JUN 12 2007 PAC025-077-095-121839- /O.CAN.KPHI.SV.W.0062.000000T0000Z-070612T1845Z/ LEHIGH PA-NORTHAMPTON PA-CARBON PA- 229 PM EDT TUE JUN 12 2007 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CARBON...WEST CENTRAL NORTHAMPTON AND LEHIGH COUNTIES IS CANCELLED... THERE WERE STILL SOME SHOWERS AND THUNDERSTORMS, HOWEVER THEY HAD WEAKENED. THERE WERE STRONGER THUNDERSTORMS UPSTREAM OVER MONROE COUNTY. LAT...LON 4082 7543 4090 7564 4066 7584 4048 7558 $$ JRP
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 12:56 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 64 min |
| Jun 12, 1:12 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh | 26 min |
| Jun 12, 1:18 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 42 min |
| Jun 12, 2:15 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery, Philadelphia | 30 min |
| Jun 12, 2:25 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 35 min |
| Jun 12, 2:48 PM EDT | Severe Thunderstorm Warning | PHI | Philadelphia | 42 min |
| Jun 12, 3:20 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 40 min |
| Jun 12, 4:00 PM EDT | Flash Flood Warning | PHI | Montgomery | 3 hr |
| Jun 12, 4:08 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 37 min |
| Jun 12, 5:46 PM EDT | Flash Flood Warning | PHI | Bucks | 119 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2007Every severe thunderstorm warning in 2007
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.