Alert archive / Pennsylvania / Special Weather Statements in 2011
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at May 27, 2011, 11:57 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 27, 2011, 11:57 PM EDT (03:57 UTC)
- Expired
- May 28, 2011, 1:00 AM EDT
- In force
- 63 min
- Issued by
- NWS Philadelphia/Mount Holly
County Berks County, PA
The radar
The Philadelphia radar (KDIX), 142 km from the middle of the area, began a volume at 03:59 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 nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 4.0 hours before the alert went out and 241 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
- 115 J/kg
- Mixed-layer CIN
- -431 J/kg
- Mixed-layer LCL
- 1380 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -43 m²/s²
- 0-3 km storm-relative helicity
- -62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
768
WWUS81 KPHI 280357
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1157 PM EDT FRI MAY 27 2011
PAZ054-055-060>062-280500-
BERKS PA-CARBON PA-LEHIGH PA-MONROE PA-NORTHAMPTON PA-
1157 PM EDT FRI MAY 27 2011
...A STRONG THUNDERSTORM WILL AFFECT BERKS...CARBON...LEHIGH...MONROE
AND NORTHAMPTON COUNTIES...
AT 1155 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 7 MILES SOUTH OF LEHIGHTON...MOVING NORTH AT 25
MPH. THE THUNDERSTORM WILL BE NEAR WEISSPORT EAST...PARRYVILLE AROUND
1215 AM...PENN FOREST RESERVOIR AND JONAS AROUND 1230 AM.
WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
LAT...LON 4103 7541 4039 7575 4039 7594 4068 7587
4071 7584 4074 7578 4076 7581 4089 7573
$$
HAYESThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 5:11 PM EDT | Special Weather Statement | PHI | Mercer | 49 min |
| May 28, 5:51 PM EDT | Special Weather Statement | PHI | Somerset | 39 min |
| May 28, 6:34 PM EDT | Special Weather Statement | PHI | Union | 26 min |
| May 28, 6:58 PM EDT | Special Weather Statement | PHI | Morris | 32 min |
| May 27, 9:58 PM EDT | Special Weather Statement | PHI | Berks | 62 min |
| May 27, 11:06 PM EDT | Special Weather Statement | PHI | Carbon | 54 min |
| May 28, 12:22 AM EDT | Special Weather Statement | PHI | Carbon | 53 min |
| May 28, 12:36 AM EDT | Special Weather Statement | PHI | Carbon | 54 min |
| May 28, 1:14 AM EDT | Special Weather Statement | PHI | Carbon, Monroe | 61 min |
| May 27, 10:08 PM EDT | Special Weather Statement | PHI | Cecil | 67 min |
| May 28, 2:06 PM EDT | Special Weather Statement | PHI | Sussex | 54 min |
| May 28, 2:12 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 48 min |
| May 28, 2:51 PM EDT | Areal Flood Advisory | PHI | Kent, Sussex | 99 min |
| May 28, 3:52 PM EDT | Special Weather Statement | PHI | Sussex | 38 min |
Nearby
Special Weather Statements in Pennsylvania, 2011Every special weather statement in 2011
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.