Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 155, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 7, 1998, 12:35 PM EDT for Monroe County, Pennsylvania. It was in force for 60 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Sep 7, 1998, 12:35 PM EDT (16:35 UTC)
- Expired
- Sep 7, 1998, 1:35 PM EDT
- In force
- 60 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
County Monroe County, PA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 7, 12:45 PM EDT | Tornado F1 | Buck Hill Falls, PA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 7, 10:45 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 4.6 hours before the alert went out and 209 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
- 242 J/kg
- Mixed-layer CIN
- -232 J/kg
- Mixed-layer LCL
- 1668 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KPHL 071635 RRA SVRPHL PAC089-071735- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1235 PM EDT MON SEP 7 1998 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MONROE COUNTY IN PENNSYLVANIA * UNTIL 135 PM EDT * AT 1231 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED 8 MILES WEST NORTHWEST OF BLAKESLEE... BY NATIONAL WEATHER SERVICE DOPPLER RADAR... MOVING EAST 45 MPH. * THE SEVERE THUNDERSTORM IS EXPECTED TO BE NEAR... BLAKESLEE AT 1240 PM EDT POCONO LAKE AT 1250 PM EDT LONG POND AT 1250 PM EDT KRESGEVILLE AT 1250 PM EDT TOBYHANNA AT 1250 PM EDT STROUDSBURG AT 120 PM EDT THESE STORMS HAVE A HISTORY OF LARGE HAIL AND DAMAGING WINDS. THIS IS A DANGEROUS STORM. MOVE INSIDE A STRONG BUILDING AND DO NOT STAND NEAR WINDOWS. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. FOR THE JLATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER RADIO...YOUR LOCAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE TELEVISION OUTLET. NC/AMC
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 12:22 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 53 min |
| Sep 7, 12:30 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 60 min |
| Sep 7, 12:46 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh, Northampton | 59 min |
| Sep 7, 1:04 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 61 min |
| Sep 7, 1:19 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 61 min |
| Sep 7, 1:39 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 51 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1998Every severe thunderstorm warning in 1998
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.