Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 20, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 13, 2000, 6:56 PM EDT for 4 counties in Pennsylvania. It was in force for 64 min. 7 reports 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
- May 13, 2000, 6:56 PM EDT (22:56 UTC)
- Expired
- May 13, 2000, 8:00 PM EDT
- In force
- 64 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
Counties Berks County, PA, Bucks County, PA, Lehigh County, PA, Montgomery County, PA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 13, 7:00 PM EDT | Hail 1 | Bechtelsville, PA | |
| May 13, 7:15 PM EDT | Hail 1.75 | Pennsburg, PA | |
| May 13, 7:19 PM EDT | Thunderstorm Wind 57 E | Pennsburg, PA | |
| May 13, 7:20 PM EDT | Hail 2 | Quakertown, PA | |
| May 13, 7:40 PM EDT | Thunderstorm Wind 60 M | Fogelsville, PA | |
| May 13, 7:40 PM EDT | Hail 1.75 | Pricetown, PA | |
| May 13, 7:55 PM EDT | Thunderstorm Wind 50 E | Bethlehem, 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 |
|---|---|---|---|
| May 13, 6:00 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 10.9 hours before the alert went out and 228 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
- 568 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
314 WUUS51 KPHI 132257 SVRPHL PAC011-017-077-091-140000- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 656 PM EDT SAT MAY 13 2000 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN LEHIGH COUNTY IN EASTERN PENNSYLVANIA. EAST CENTRAL BERKS COUNTY IN EASTERN PENNSYLVANIA. NORTHWESTERN MONTGOMERY COUNTY IN SOUTHEAST PENNSYLVANIA. NORTHWESTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA. * UNTIL 800 PM EDT. * AT 650 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... 7 MILES NORTHWEST OF GILBERTSVILLE...OR ABOUT 12 MILES EAST OF READING...MOVING EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... EAST GREENVILLE AT 715 PM EDT... EMMAUS AT 725 PM EDT... QUAKERTOWN AT 740 PM EDT... PERKASIE AT 745 PM EDT... FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE TELEVISION OUTLET. NNNN
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 5:32 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 43 min |
| May 13, 6:12 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 48 min |
| May 13, 6:44 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh, Northampton | 46 min |
| May 13, 7:02 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 43 min |
| May 13, 7:12 PM EDT | Tornado Warning | PHI | Bucks, Montgomery | 33 min |
| May 13, 7:23 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 52 min |
| May 13, 7:39 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 41 min |
| May 13, 7:47 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 43 min |
| May 13, 7:53 PM EDT | Tornado Warning | PHI | Lehigh, Northampton | 37 min |
| May 13, 7:59 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 31 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2000Every severe thunderstorm warning in 2000
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.