Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 65, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 10, 2009, 6:02 PM EDT for Berks County, Pennsylvania. It was in force for 58 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 10, 2009, 6:02 PM EDT (22:02 UTC)
- Expired
- Jun 10, 2009, 7:00 PM EDT
- In force
- 58 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Berks County, PA
The radar
The Philadelphia radar (KDIX), 154 km from the middle of the area, began a volume at 22:03 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 10, 6:10 PM EDT | HAIL 0.88 | Womelsdorf, PA | PENNY TO NICKEL SIZED HAIL REPORTED IN WOMELSDORF. |
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, 10.0 hours before the alert went out and 105 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
- 13 J/kg
- Mixed-layer CIN
- -219 J/kg
- Mixed-layer LCL
- 980 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 102202
SVRPHI
PAC011-102300-
/O.NEW.KPHI.SV.W.0065.090610T2202Z-090610T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
602 PM EDT WED JUN 10 2009
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 700 PM EDT
* AT 601 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL. THIS
STORM WAS LOCATED NEAR WOMELSDORF...OR 18 MILES WEST OF READING...
AND MOVING EAST AT 10 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
WOMELSDORF AROUND 625 PM EDT...
STRAUSSTOWN AROUND 645 PM EDT...
BERNVILLE...7 MILES NORTH OF WERNERSVILLE AND 8 MILES WEST OF
LEESPORT AROUND 700 PM EDT...
LAT...LON 4054 7618 4061 7590 4033 7575 4022 7602
4030 7614 4036 7621 4036 7623 4038 7626
4051 7633
TIME...MOT...LOC 2202Z 255DEG 7KT 4040 7626
$$
EBERWINE1 follow-up statement
000
WWUS51 KPHI 102225
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
625 PM EDT WED JUN 10 2009
PAC011-102300-
/O.CON.KPHI.SV.W.0065.000000T0000Z-090610T2300Z/
BERKS PA-
625 PM EDT WED JUN 10 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR CENTRAL BERKS COUNTY...
AT 623 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL.
THIS STORM WAS LOCATED NEAR WOMELSDORF...OR 16 MILES WEST OF
READING...MOVING EAST AT 10 MPH. THIS STORM PRODUCED PENNY TO NICKEL
SIZED HAIL IN WOMELSDORF AT 0610 PM.
THE SEVERE THUNDERSTORM WILL BE NEAR...
ROBESONIA BY 640 PM EDT...
STRAUSSTOWN BY 645 PM EDT...
BERNVILLE...7 MILES NORTH OF WERNERSVILLE...7 MILES SOUTHWEST OF
CENTERPORT AND 8 MILES WEST OF LEESPORT BY 700 PM EDT...
LAT...LON 4047 7625 4054 7611 4055 7597 4039 7581
4022 7602 4030 7614 4036 7621 4036 7623
4038 7626
TIME...MOT...LOC 2224Z 255DEG 7KT 4041 7621
$$
EBERWINEThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 5:13 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 47 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2009Every severe thunderstorm warning in 2009
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.