Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 16, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 14, 2010, 4:42 PM EDT for Berks County, Pennsylvania. It was in force for 63 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
- May 14, 2010, 4:42 PM EDT (20:42 UTC)
- Expired
- May 14, 2010, 5:45 PM EDT
- In force
- 63 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Berks County, PA
The radar
The Philadelphia radar (KDIX), 160 km from the middle of the area, began a volume at 20:42 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 14, 3:43 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 8.7 hours before the alert went out and 114 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 557 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
773
WUUS51 KPHI 142042
SVRPHI
PAC011-142145-
/O.NEW.KPHI.SV.W.0016.100514T2042Z-100514T2145Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
442 PM EDT FRI MAY 14 2010
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN BERKS COUNTY IN EASTERN PENNSYLVANIA...
THIS INCLUDES THE CITY OF READING...
* UNTIL 545 PM EDT
* AT 438 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 33
MILES WEST OF STRAUSSTOWN...OR 44 MILES NORTHWEST OF LANCASTER...
AND MOVING EAST AT 35 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
STRAUSSTOWN AROUND 535 PM EDT...
BERNVILLE AROUND 540 PM EDT...
SHOEMAKERSVILLE...HAMBURG AND LEESPORT AROUND 545 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
FRIDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY
AND EASTERN PENNSYLVANIA.
&&
LAT...LON 4053 7634 4052 7630 4054 7618 4060 7605
4059 7603 4064 7600 4066 7595 4067 7588
4019 7592 4022 7603 4036 7621 4036 7624
4047 7640 4050 7644
TIME...MOT...LOC 2042Z 274DEG 31KT 4054 7677
$$
HAYES2 follow-up statements
340
WWUS51 KPHI 142105
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
505 PM EDT FRI MAY 14 2010
PAC011-142145-
/O.CON.KPHI.SV.W.0016.000000T0000Z-100514T2145Z/
BERKS PA-
505 PM EDT FRI MAY 14 2010
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR WESTERN BERKS COUNTY...
AT 503 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED 18 MILES WEST OF STRAUSSTOWN...OR 34 MILES NORTHWEST OF
READING...MOVING EAST AT 40 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
STRAUSSTOWN BY 530 PM EDT...
9 MILES NORTH OF WOMELSDORF BY 535 PM EDT...
BERNVILLE BY 540 PM EDT...
CENTERPORT...SHOEMAKERSVILLE...LEESPORT AND 6 MILES SOUTHWEST OF
HAMBURG BY 545 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
FRIDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY
AND EASTERN PENNSYLVANIA.
&&
LAT...LON 4053 7634 4052 7630 4054 7618 4060 7605
4059 7603 4064 7600 4066 7595 4067 7588
4019 7592 4022 7603 4036 7621 4036 7624
4047 7640 4050 7644
TIME...MOT...LOC 2105Z 276DEG 33KT 4052 7650
$$
HAYES671
WWUS51 KPHI 142143
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
543 PM EDT FRI MAY 14 2010
PAC011-142154-
/O.EXP.KPHI.SV.W.0016.000000T0000Z-100514T2145Z/
BERKS PA-
543 PM EDT FRI MAY 14 2010
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN BERKS COUNTY WILL
EXPIRE AT 545 PM EDT...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
FRIDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY
AND EASTERN PENNSYLVANIA.
LAT...LON 4053 7634 4052 7630 4054 7618 4060 7605
4059 7603 4064 7600 4066 7595 4067 7588
4019 7592 4022 7603 4036 7621 4036 7624
4047 7640 4050 7644
TIME...MOT...LOC 2144Z 276DEG 33KT 4048 7603
$$
HAYESThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 14, 3:52 PM EDT | Special Weather Statement | PHI | Carbon, Monroe | 53 min |
| May 14, 4:18 PM EDT | Special Weather Statement | PHI | Carbon | 57 min |
| May 14, 4:26 PM EDT | Special Weather Statement | PHI | Carbon, Northampton | 64 min |
| May 14, 5:04 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Northampton | 56 min |
| May 14, 5:07 PM EDT | Special Weather Statement | PHI | Northampton | 53 min |
| May 14, 5:38 PM EDT | Tornado Warning | PHI | Berks, Lehigh | 37 min |
| May 14, 5:49 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 56 min |
| May 14, 5:53 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Northampton | 67 min |
| May 14, 6:11 PM EDT | Special Weather Statement | PHI | Carbon | 64 min |
| May 14, 6:25 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Montgomery, Philadelphia | 65 min |
| May 14, 6:35 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 55 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2010Every severe thunderstorm warning in 2010
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.