Alert archive / New Jersey / Tornado Watches in 2006
Tornado Watch 593
The Storm Prediction Center issued this tornado watch at Jul 12, 2006, 12:42 PM EDT for 10 counties in New Jersey; 7 counties in New York; 10 counties in Pennsylvania. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 12, 2006, 12:42 PM EDT (16:42 UTC)
- Expired
- Jul 12, 2006, 8:00 PM EDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 27 counties
Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Hunterdon County, NJ, Morris County, NJ, Passaic County, NJ, Somerset County, NJ, Sussex County, NJ, Union County, NJ, Warren County, NJ, Dutchess County, NY, Orange County, NY, Putnam County, NY, Rockland County, NY, Sullivan County, NY, Ulster County, NY, Westchester County, NY, Berks County, PA, Carbon County, PA, Lackawanna County, PA, Lehigh County, PA, Luzerne County, PA, Monroe County, PA, Northampton County, PA, Pike County, PA, Schuylkill County, PA, Wayne County, PA
The radar
The Binghamton radar (KBGM), 125 km from the middle of the area, began a volume at 16:42 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 50%
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 12:53 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 52 min |
| Jul 12, 2:29 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 46 min |
| Jul 12, 3:43 PM EDT | Tornado Warning | OKX | Westchester | 20 min |
| Jul 12, 5:08 PM EDT | Severe Thunderstorm Warning | OKX | Hudson | 37 min |
| Jul 12, 7:10 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 80 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 4.7 hours before the alert went out and 178 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
- 152 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 759 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 121642
SEL3
SPC WW 121642
NJZ000-NYZ000-PAZ000-130000-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 593
NWS STORM PREDICTION CENTER NORMAN OK
1240 PM EDT WED JUL 12 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHERN NEW JERSEY
SOUTHEAST NEW YORK
NORTHEAST PENNSYLVANIA
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 1240 PM UNTIL
800 PM EDT.
TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE
MILES EAST AND WEST OF A LINE FROM 30 MILES NORTHEAST OF
MONTICELLO NEW YORK TO 20 MILES SOUTH OF ALLENTOWN PENNSYLVANIA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU3).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.
DISCUSSION...A SURFACE LOW AND ASSOCIATED MID LEVEL TROUGH WILL MOVE
EWD FROM SWRN ONTARIO TO CENTRAL AND UPSTATE NY THROUGH THIS
EVENING. A SEPARATE RAIN-COOLED BOUNDARY EXTENDS ACROSS EXTREME NE
PA AND SE NY/NRN NJ. S OF THIS BOUNDARY...SURFACE HEATING AND LOW
70 DEWPOINTS ARE CONTRIBUTING TO MODERATE INSTABILITY...AND THIS
BOUNDARY MAY LIFT A LITTLE TO THE N THIS AFTERNOON. THUNDERSTORMS
WILL LIKELY INCREASE IN COVERAGE THIS AFTERNOON ALONG AND S OF THE
BOUNDARY...WITH THE POTENTIAL FOR A FEW SUPERCELLS. GIVEN THE RICH
MOISTURE AND LOW-LEVEL SHEAR MAXIMIZED NEAR THE RAIN-COOLED
BOUNDARY...A FEW TORNADOES WILL BE POSSIBLE THIS AFTERNOON.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.
MEAN STORM MOTION VECTOR 27025.
...THOMPSONSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 11:55 AM EDT | Mesoscale Discussion | SPC | Bergen, Burlington, Camden, Essex, Gloucester, Hudson and 12 more | 95 min |
| Jul 12, 1:56 PM EDT | Mesoscale Discussion | SPC | Camden, Cumberland, Gloucester, Salem | 94 min |
| Jul 12, 4:49 PM EDT | Mesoscale Discussion | SPC | Bergen, Essex, Hudson, Hunterdon, Mercer, Middlesex and 6 more | 56 min |
| Jul 12, 7:55 PM EDT | Mesoscale Discussion | SPC | Essex, Hunterdon, Morris, Passaic, Somerset, Sussex and 2 more | 65 min |
| Jul 12, 1:38 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Fayette, Greene and 3 more | 97 min |
Nearby
Tornado Watches in New Jersey, 2006Tornado Watches in Pennsylvania, 2006Tornado Watches in New York, 2006Every tornado watch in 2006
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.