Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 8, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 16, 2010, 6:44 PM EDT for Berks 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
- Apr 16, 2010, 6:44 PM EDT (22:44 UTC)
- Expired
- Apr 16, 2010, 7:45 PM EDT
- In force
- 61 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Berks County, PA
The radar
The Philadelphia radar (KDIX), 150 km from the middle of the area, began a volume at 22:47 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 |
|---|---|---|---|
| Apr 16, 7:10 PM EDT | TSTM WND DMG | 1 S Sinking Spring, PA | TREES DOWN ON CARS AND ONE RESIDENCE IN SPRING TOWNSHIP. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.7 hours before the alert went out and 109 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
- 1605 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 172 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
836
WUUS51 KPHI 162244
SVRPHI
PAC011-162345-
/O.NEW.KPHI.SV.W.0008.100416T2244Z-100416T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
644 PM EDT FRI APR 16 2010
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
BERKS COUNTY IN EASTERN PENNSYLVANIA...
THIS INCLUDES THE CITY OF READING...
* UNTIL 745 PM EDT
* AT 639 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED 19 MILES WEST OF
STRAUSSTOWN...OR 35 MILES NORTHWEST OF READING...AND MOVING EAST
AT 35 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
STRAUSSTOWN AROUND 705 PM EDT...
BERNVILLE AROUND 710 PM EDT...
SHOEMAKERSVILLE...LEESPORT AND HAMBURG AROUND 720 PM EDT...
FLEETWOOD AROUND 730 PM EDT...
LYONS AND KUTZTOWN AROUND 735 PM EDT...
TOPTON AROUND 740 PM EDT...
LAT...LON 4054 7618 4060 7605 4059 7603 4064 7601
4068 7590 4044 7555 4026 7570 4015 7589
4020 7599 4036 7621 4036 7624 4039 7629
4050 7644
TIME...MOT...LOC 2243Z 276DEG 38KT 4054 7649
$$1 follow-up statement
056
WWUS51 KPHI 162310
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
710 PM EDT FRI APR 16 2010
PAC011-162345-
/O.CON.KPHI.SV.W.0008.000000T0000Z-100416T2345Z/
BERKS PA-
710 PM EDT FRI APR 16 2010
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR BERKS COUNTY...
AT 710 PM EDT...NATIONAL WEATHER SERVICE RADAR CONTINUED TO INDICATE
A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS
IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED NEAR STRAUSSTOWN...OR
16 MILES NORTHWEST OF READING...MOVING EAST AT 35 MPH.
THE SEVERE THUNDERSTORMS WILL BE NEAR...
SHOEMAKERSVILLE...CENTERPORT...LEESPORT AND HAMBURG BY 720 PM
EDT...
TEMPLE BY 725 PM EDT...
FLEETWOOD BY 730 PM EDT...
LYONS AND KUTZTOWN BY 735 PM EDT...
TOPTON BY 740 PM EDT...
LAT...LON 4054 7618 4060 7605 4059 7603 4064 7601
4068 7590 4044 7555 4026 7570 4015 7589
4020 7599 4036 7621 4036 7624 4039 7629
4050 7644
TIME...MOT...LOC 2310Z 276DEG 38KT 4051 7612
$$The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 7:41 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 34 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.