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 Oct 14, 2011, 12:51 PM EDT for Lehigh County, Pennsylvania. It was in force for 54 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
- Oct 14, 2011, 12:51 PM EDT (16:51 UTC)
- Expired
- Oct 14, 2011, 1:45 PM EDT
- In force
- 54 min
- Issued by
- NWS Philadelphia/Mount Holly
County Lehigh County, PA
The radar
The Philadelphia radar (KDIX), 126 km from the middle of the area, began a volume at 16:52 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
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 4.9 hours before the alert went out and 131 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
- 262 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 748 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
743
WWUS81 KPHI 141651
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1251 PM EDT FRI OCT 14 2011
PAZ060-061-141745-
BERKS PA-LEHIGH PA-
1251 PM EDT FRI OCT 14 2011
...STRONG THUNDERSTORMS WILL AFFECT BERKS AND LEHIGH COUNTIES...
AT 1248 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 17 MILES SOUTHWEST
OF LEHIGHTON TO 15 MILES SOUTHEAST OF READING...MOVING NORTH AT 40
MPH. THE THUNDERSTORMS WILL BE NEAR LYONS...KUTZTOWN AROUND 100 PM...
BOYERTOWN AROUND 105 PM...NEW TRIPOLI...TOPTON...BECHTELSVILLE AROUND
110 PM...JORDAN VALLEY...BALLY AROUND 115 PM...ZIONSVILLE AND
CLAUSSVILLE AROUND 125 PM.
WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THESE STORMS.
LAT...LON 4078 7568 4078 7564 4076 7561 4074 7561
4072 7556 4054 7536 4043 7551 4044 7553
4034 7561 4019 7580 4065 7594
$$
FORECASTER: AMCThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 14, 12:15 AM EDT | Coastal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 1 more | 13 hr |
| Oct 14, 3:26 AM EDT | Coastal Flood Advisory | PHI | Burlington, Camden, Gloucester, Salem | 19 hr |
| Oct 14, 4:01 AM EDT | Gale Watch | PHI | 12 hr | |
| Oct 14, 2:21 PM EDT | Special Weather Statement | PHI | Warren | 54 min |
| Oct 14, 2:53 PM EDT | Special Weather Statement | PHI | Burlington, Camden, Hunterdon, Mercer, Somerset | 67 min |
| Oct 14, 3:12 PM EDT | Special Weather Statement | PHI | Sussex, Warren | 63 min |
| Oct 14, 3:59 PM EDT | Gale Watch | PHI | 12 hr | |
| Oct 14, 3:59 PM EDT | Gale Warning | PHI | 27 hr | |
| Oct 14, 3:59 PM EDT | Special Weather Statement | PHI | Middlesex, Monmouth, Morris | 61 min |
| Oct 14, 10:45 AM EDT | Special Weather Statement | PHI | Berks, Lehigh | 60 min |
| Oct 14, 11:38 AM EDT | Special Weather Statement | PHI | Berks, Carbon, Lehigh | 52 min |
| Oct 14, 12:25 PM EDT | Special Weather Statement | PHI | Chester, Delaware, Montgomery | 80 min |
| Oct 14, 1:22 PM EDT | Special Weather Statement | PHI | Carbon, Monroe, Northampton | 53 min |
| Oct 14, 1:43 PM EDT | Special Weather Statement | PHI | Bucks, Delaware, Montgomery, Philadelphia | 62 min |
| Oct 14, 11:21 AM EDT | Special Weather Statement | PHI | Cecil | 54 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.