Alert archive / New Jersey / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 7, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Mar 10, 2002, 2:12 AM EST for Mercer County, New Jersey; Bucks County, Pennsylvania. It was in force for 18 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 10, 2002, 2:12 AM EST (07:12 UTC)
- Expired
- Mar 10, 2002, 2:30 AM EST
- In force
- 18 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
Counties Mercer County, NJ, Bucks County, PA
The radar
The Philadelphia radar (KDIX), 58 km from the middle of the area, began a volume at 07:15 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 |
|---|---|---|---|
| Mar 9, 11:30 PM EST | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 7.2 hours before the alert went out and 183 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
- 10 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 541 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 232 m²/s²
- 0-3 km storm-relative helicity
- 336 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 100712 SVRPHI NJC021-PAC017-100730- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 212 AM EST SUN MAR 10 2002 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MERCER COUNTY IN CENTRAL NEW JERSEY. SOUTHEASTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA. * UNTIL 230 AM EST. * AT 209 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS... 2 MILES SOUTH OF WOODSIDE...MOVING NORTHEAST AT 65 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... PRINCETON AT 220 AM. DAMAGING WINDS IN EXCESS OF 55 MPH ARE EXPECTED FROM THIS STORM. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THE STORM HAS PASSED. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MOUNT HOLLY. FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE TELEVISION OUTLET. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 AM SUNDAY MORNING FOR NORTHWESTERN NEW JERSEY AND EASTERN PENNSYLVANIA. $$ LAT...LON 4023 7499 4010 7487 4026 7451 4038 7468 AMC
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 10, 12:56 AM EST | Severe Thunderstorm Warning | PHI | Warren | 34 min |
| Mar 10, 1:03 AM EST | Severe Thunderstorm Warning | PHI | Sussex | 42 min |
| Mar 10, 1:19 AM EST | Severe Thunderstorm Warning | PHI | Morris | 41 min |
| Mar 9, 11:39 PM EST | Severe Thunderstorm Warning | PHI | Berks | 51 min |
| Mar 9, 11:43 PM EST | Severe Thunderstorm Warning | PHI | Carbon | 32 min |
| Mar 10, 12:05 AM EST | Severe Thunderstorm Warning | PHI | Lehigh, Monroe, Northampton | 55 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2002Severe Thunderstorm Warnings in Pennsylvania, 2002Every severe thunderstorm warning in 2002
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.