Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 46, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 25, 2013, 9:14 PM EDT for Berks County, Lehigh County, Pennsylvania. It was in force for 61 min. 1 report 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
- Jun 25, 2013, 9:14 PM EDT (01:14 UTC)
- Expired
- Jun 25, 2013, 10:15 PM EDT
- In force
- 61 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Berks County, PA, Lehigh County, PA
The radar
The Philadelphia radar (KDIX), 133 km from the middle of the area, began a volume at 01:17 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 |
|---|---|---|---|
| Jun 25, 9:45 PM EDT | TSTM WND DMG | Jefferson Twp, PA | TREES AND WIRES DOWN IN THE WESTERN PART OF THE COUNTY. |
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 |
|---|---|---|---|
| Jun 25, 8:46 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 1.2 hours before the alert went out and 227 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
- 813 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 1785 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 201 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
071
WUUS51 KPHI 260114
SVRPHI
PAC011-077-260215-
/O.NEW.KPHI.SV.W.0046.130626T0114Z-130626T0215Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
914 PM EDT TUE JUN 25 2013
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
BERKS COUNTY IN EASTERN PENNSYLVANIA...
LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
* UNTIL 1015 PM EDT
* AT 908 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS. THESE SEVERE STORMS EXTENDED FROM
RINGTOWN TO LAWN...MOVING EAST AT 50 MPH. THESE STORMS ARE CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
STRAUSSTOWN AROUND 935 PM EDT...
WOMELSDORF AND HAMBURG AROUND 940 PM EDT...
WANAMAKERS AND SHOEMAKERSVILLE AROUND 945 PM EDT...
LEESPORT AND WERNERSVILLE AROUND 950 PM EDT...
SCHNECKSVILLE AND WYOMISSING AROUND 955 PM EDT...
TOPTON AND READING AROUND 1000 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS LINE OF SEVERE THUNDERSTORMS HAS A HISTORY OF PRODUCING WIND
DAMAGE ACROSS CENTRAL PENNSYLVANIA OVER THE PAST FEW HOURS. WHEN
STORMS APPROACH SEEK SHELTER INDOORS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM EDT
WEDNESDAY MORNING FOR DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN
NEW JERSEY AND SOUTHEASTERN PENNSYLVANIA.
&&
LAT...LON 4052 7625 4058 7603 4065 7599 4079 7561
4074 7560 4072 7556 4074 7553 4066 7548
4067 7543 4063 7539 4058 7541 4055 7536
4043 7550 4044 7554 4026 7568 4013 7588
4049 7644 4050 7644
TIME...MOT...LOC 0112Z 278DEG 44KT 4088 7618 4012 7694
$$
FORECASTER: AMC1 follow-up statement
046
WWUS51 KPHI 260146
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
946 PM EDT TUE JUN 25 2013
PAC011-077-260215-
/O.CON.KPHI.SV.W.0046.000000T0000Z-130626T0215Z/
BERKS PA-LEHIGH PA-
946 PM EDT TUE JUN 25 2013
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR LEHIGH AND BERKS COUNTIES...
AT 945 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 8 MILES NORTHWEST OF HAMBURG TO 21 MILES SOUTHWEST OF
WOMELSDORF...MOVING EAST AT 45 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
WOMELSDORF AND HAMBURG AROUND 955 PM EDT...
WANAMAKERS AND LEESPORT AROUND 1000 PM EDT...
NEW TRIPOLI AND JORDAN VALLEY AROUND 1005 PM EDT...
SCHNECKSVILLE AND NEFFS AROUND 1010 PM EDT...
TOPTON AND LORANE AROUND 1015 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM EDT
WEDNESDAY MORNING FOR DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN
NEW JERSEY AND SOUTHEASTERN PENNSYLVANIA.
&&
LAT...LON 4052 7625 4058 7603 4065 7599 4079 7561
4074 7560 4072 7556 4074 7553 4066 7548
4067 7543 4063 7539 4058 7541 4055 7536
4043 7550 4044 7554 4026 7568 4013 7588
4049 7644 4050 7644
TIME...MOT...LOC 0146Z 278DEG 41KT 4066 7605 4016 7646
$$
FORECASTER: AMCThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 9:09 PM EDT | Special Weather Statement | PHI | Carbon, Northampton | 51 min |
| Jun 25, 10:01 PM EDT | Special Weather Statement | PHI | Carbon, Monroe, Northampton | 119 min |
| Jun 25, 10:07 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery | 53 min |
| Jun 25, 10:47 PM EDT | Special Weather Statement | PHI | Delaware, Montgomery, Philadelphia | 58 min |
| Jun 26, 3:28 PM EDT | Special Weather Statement | PHI | Montgomery | 32 min |
| Jun 26, 3:53 PM EDT | Special Weather Statement | PHI | Montgomery | 37 min |
| Jun 26, 6:26 PM EDT | Special Weather Statement | PHI | Chester | 64 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2013Every severe thunderstorm warning in 2013
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.