Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 181, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 16, 2016, 4:23 PM EDT for Berks County, Chester County, Montgomery County, Pennsylvania. It was in force for 52 min. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 16, 2016, 4:23 PM EDT (20:23 UTC)
- Expired
- Aug 16, 2016, 5:15 PM EDT
- In force
- 52 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Berks County, PA, Chester County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 142 km from the middle of the area, began a volume at 20:24 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 16, 4:52 PM EDT | TSTM WND GST 48 | Reading Regional Airpor, PA | |
| Aug 16, 5:05 PM EDT | TSTM WND DMG | West Reading, PA | FEW TREES DOWN |
| Aug 16, 5:06 PM EDT | TSTM WND DMG | Perry Twp, PA | FEW TREES DOWN |
| Aug 16, 5:22 PM EDT | TSTM WND DMG | Richmond Twp, PA | FEW TREES DOWN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 16, 3:20 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 8.4 hours before the alert went out and 195 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
- 364 J/kg
- Mixed-layer CIN
- -175 J/kg
- Mixed-layer LCL
- 773 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
222
WUUS51 KPHI 162023
SVRPHI
PAC011-029-091-162115-
/O.NEW.KPHI.SV.W.0181.160816T2023Z-160816T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
423 PM EDT TUE AUG 16 2016
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL CHESTER COUNTY IN SOUTHEASTERN PENNSYLVANIA...
BERKS COUNTY IN EASTERN PENNSYLVANIA...
WEST CENTRAL MONTGOMERY COUNTY IN SOUTHEASTERN PENNSYLVANIA...
* UNTIL 515 PM EDT
* AT 422 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR LICKDALE TO NEAR LANCASTER...MOVING EAST AT 45
MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
* LOCATIONS IMPACTED INCLUDE...
READING...WEST CHESTER...POTTSTOWN...PHOENIXVILLE...COATESVILLE...
WYOMISSING...DOWNINGTOWN...BIRDSBORO...KUTZTOWN...ROYERSFORD...
HAMBURG...FLEETWOOD...SINKING SPRING...LAURELDALE...PARKESBURG...
WOMELSDORF...WERNERSVILLE...NEWMANSTOWN...LEESPORT AND ADAMSTOWN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 4052 7634 4052 7625 4058 7605 4057 7602
4064 7598 4068 7589 4031 7553 3999 7545
3988 7599 3995 7600 4004 7593 4011 7594
4014 7588 4049 7643
TIME...MOT...LOC 2022Z 255DEG 39KT 4050 7650 4008 7629
HAIL...<.75IN
WIND...60MPH
$$
PO2 follow-up statements
417
WWUS51 KPHI 162050
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
450 PM EDT TUE AUG 16 2016
PAC011-029-091-162115-
/O.CON.KPHI.SV.W.0181.000000T0000Z-160816T2115Z/
CHESTER PA-BERKS PA-MONTGOMERY PA-
450 PM EDT TUE AUG 16 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR CENTRAL CHESTER...BERKS AND WEST CENTRAL MONTGOMERY COUNTIES...
AT 449 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR STRAUSSTOWN TO NEAR SINKING SPRING TO TERRE HILL
TO LEOLA...MOVING EAST AT 40 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
LOCATIONS IMPACTED INCLUDE...
READING...WEST CHESTER...POTTSTOWN...PHOENIXVILLE...COATESVILLE...
WYOMISSING...DOWNINGTOWN...BIRDSBORO...KUTZTOWN...ROYERSFORD...
HAMBURG...FLEETWOOD...SINKING SPRING...LAURELDALE...PARKESBURG...
WERNERSVILLE...LEESPORT...HONEY BROOK...SHOEMAKERSVILLE AND ELVERSON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 4043 7616 4047 7622 4058 7605 4057 7602
4064 7598 4068 7589 4031 7553 3999 7545
3988 7599 3995 7600 4004 7593 4011 7594
4014 7588 4034 7613
TIME...MOT...LOC 2049Z 249DEG 34KT 4053 7617 4030 7599 4016 7606 4007
7619
HAIL...<.75IN
WIND...60MPH
$$
PO660
WWUS51 KPHI 162105
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
505 PM EDT TUE AUG 16 2016
PAC029-091-162115-
/O.CAN.KPHI.SV.W.0181.000000T0000Z-160816T2115Z/
CHESTER PA-MONTGOMERY PA-
505 PM EDT TUE AUG 16 2016
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CHESTER AND WEST
CENTRAL MONTGOMERY COUNTIES IS CANCELLED...
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED...THEREFORE THE
WARNING HAS BEEN CANCELLED.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT FOR
EASTERN AND SOUTHEASTERN PENNSYLVANIA.
LAT...LON 4058 7605 4057 7602 4064 7598 4068 7589
4049 7570 4037 7559 4025 7569 4014 7587
4034 7613 4043 7616 4047 7622
TIME...MOT...LOC 2105Z 255DEG 39KT 4057 7599 4034 7581 4020 7588 4011
7602
$$
PAC011-162115-
/O.CON.KPHI.SV.W.0181.000000T0000Z-160816T2115Z/
BERKS PA-
505 PM EDT TUE AUG 16 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR BERKS COUNTY...
AT 505 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM HAMBURG TO NEAR BIRDSBORO TO NEW MORGAN TO NEAR
CHURCHTOWN...MOVING EAST AT 45 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
LOCATIONS IMPACTED INCLUDE...
READING...WYOMISSING...BIRDSBORO...KUTZTOWN...HAMBURG...FLEETWOOD...
SINKING SPRING...LAURELDALE...WERNERSVILLE...TOPTON...LEESPORT...
SHOEMAKERSVILLE...BERNVILLE...BECHTELSVILLE...LYONS...STRAUSSTOWN...
LENHARTSVILLE...NEW MORGAN...FAIRVIEW HGTS AND SPRING RIDGE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 4058 7605 4057 7602 4064 7598 4068 7589
4049 7570 4037 7559 4025 7569 4014 7587
4034 7613 4043 7616 4047 7622
TIME...MOT...LOC 2105Z 255DEG 39KT 4057 7599 4034 7581 4020 7588 4011
7602
HAIL...<.75IN
WIND...60MPH
$$
POThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 4:08 PM EDT | Special Weather Statement | PHI | Berks | 67 min |
| Aug 16, 5:08 PM EDT | Special Weather Statement | PHI | Chester | 52 min |
| Aug 16, 5:10 PM EDT | Special Weather Statement | PHI | Carbon | 35 min |
| Aug 16, 5:19 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh, Northampton | 41 min |
| Aug 16, 5:36 PM EDT | Special Weather Statement | PHI | Chester, Delaware | 54 min |
| Aug 16, 5:44 PM EDT | Special Weather Statement | PHI | Carbon, Monroe | 61 min |
| Aug 16, 6:31 PM EDT | Special Weather Statement | PHI | Delaware | 29 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2016Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.