Alert archive / Pennsylvania / Special Weather Statements in 2016
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Jun 21, 2016, 9:41 PM EDT for Berks County, Pennsylvania. It was in force for 34 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 21, 2016, 9:41 PM EDT (01:41 UTC)
- Expired
- Jun 21, 2016, 10:15 PM EDT
- In force
- 34 min
- Issued by
- NWS Philadelphia/Mount Holly
County Berks County, PA
The radar
The Philadelphia radar (KDIX), 119 km from the middle of the area, began a volume at 01:44 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 nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 1.7 hours before the alert went out and 202 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
- 677 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 1204 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
755 WWUS81 KPHI 220141 SPSPHI SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 941 PM EDT TUE JUN 21 2016 PAZ060-101-103-220215- BERKS-WESTERN CHESTER-WESTERN MONTGOMERY- 941 PM EDT TUE JUN 21 2016 ...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL CHESTER... SOUTHEASTERN BERKS AND NORTHWESTERN MONTGOMERY COUNTIES... AT 940 PM EDT...A STRONG THUNDERSTORM WAS NEAR ADAMSTOWN...OR 7 MILES SOUTH OF READING...MOVING EAST AT 30 MPH. WIND GUSTS UP TO 30 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... READING...POTTSTOWN...BIRDSBORO...ELVERSON...NEW MORGAN... CHESTER SPRINGS...GILBERTSVILLE...PUGHTOWN...CEDARVILLE...STOWE... SHILLINGTON...BOYERTOWN...MOHNTON...KENHORST...KENILWORTH... AMITY GARDENS...POTTSGROVE...HALFWAY HOUSE...FLYING HILLS AND LORANE. OCCASIONAL CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. LAT...LON 4036 7559 4009 7559 4014 7588 4028 7609 TIME...MOT...LOC 0140Z 270DEG 24KT 4023 7597 $$ ROBERTSON
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 8:50 PM EDT | Special Marine Warning | PHI | 55 min | |
| Jun 21, 8:38 PM EDT | Special Weather Statement | PHI | Chester | 52 min |
Nearby
Special Weather Statements in Pennsylvania, 2016Every special weather statement in 2016
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.