Alert archive / Pennsylvania / Special Weather Statements in 2011

Special Weather Statement, NWS Philadelphia/Mount Holly

October 14, 2011Carbon County, Monroe County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Oct 14, 2011, 1:22 PM EDT for Carbon County, Monroe County, Northampton County, Pennsylvania. It was in force for 53 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, 1:22 PM EDT (17:22 UTC)
Expired: Oct 14, 2011, 2:15 PM EDT
In force: 53 min
Issued by: NWS Philadelphia/Mount Holly

Counties Carbon County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 137 km from the middle of the area, began a volume at 17:22 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, 5.4 hours before the alert went out and 172 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

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

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

340 
WWUS81 KPHI 141722
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
122 PM EDT FRI OCT 14 2011

PAZ054-055-062-141815-
CARBON PA-MONROE PA-NORTHAMPTON PA-
122 PM EDT FRI OCT 14 2011

...STRONG THUNDERSTORMS WILL AFFECT CARBON...MONROE AND NORTHAMPTON
COUNTIES...

AT 117 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 9 MILES SOUTHWEST OF
LEHIGHTON TO 6 MILES SOUTHWEST OF ALLENTOWN...MOVING NORTHEAST AT 40
MPH. THE THUNDERSTORMS WILL BE NEAR SUMMIT HILL...NESQUEHONING AROUND
130 PM...EAST SIDE...WHITE HAVEN AROUND 145 PM...SAYLORSBURG...
ROSSLAND AROUND 200 PM...TOBYHANNA AND GOULDSBORO STATE PARK AROUND
215 PM.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THESE STORMS.

EXPECT SMALL HAIL AND SOME DANGEROUS CLOUD TO GROUND LIGHTNING FROM 
THESE STORMS.

LAT...LON 4116 7516 4108 7497 4099 7514 4086 7505
      4084 7510 4079 7510 4074 7520 4062 7520
      4054 7535 4066 7543 4065 7549 4079 7563
      4074 7578 4091 7600 4100 7575 4110 7577
      4114 7570 4113 7564 4125 7550 4126 7515

$$

FORECASTER: AMC

The 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, 12:51 PM EDT	Special Weather Statement	PHI	Lehigh	54 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, 2011 Every 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.