Alert archive / New Jersey / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 81, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 1, 2011, 4:05 PM EDT for Morris County, Sussex County, Warren County, New Jersey. It was in force for 40 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 1, 2011, 4:05 PM EDT (20:05 UTC)
- Expired
- Jun 1, 2011, 4:45 PM EDT
- In force
- 40 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ
The radar
The Philadelphia radar (KDIX), 111 km from the middle of the area, began a volume at 20:07 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 1, 4:20 PM EDT | HAIL 0.5 | 1 Nne Milton, NJ |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 1, 12:58 PM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 8.1 hours before the alert went out and 130 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
- 83 J/kg
- Mixed-layer CIN
- -625 J/kg
- Mixed-layer LCL
- 1113 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 157 m²/s²
- 0-3 km storm-relative helicity
- 227 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.5
The text
As transmitted, in the capitals the NWS used until 2016.
975
WUUS51 KPHI 012005
SVRPHI
NJC027-037-041-012045-
/O.NEW.KPHI.SV.W.0081.110601T2005Z-110601T2045Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
405 PM EDT WED JUN 1 2011
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN MORRIS COUNTY IN NORTHERN NEW JERSEY...
SOUTHERN SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
THIS INCLUDES THE CITY OF NEWTON...
EXTREME EAST CENTRAL WARREN COUNTY IN NORTHWEST NEW JERSEY...
* UNTIL 445 PM EDT
* AT 403 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR ANDOVER...OR 7
MILES SOUTH OF NEWTON...AND MOVING EAST AT 40 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
HOPATCONG...MOUNT ARLINGTON AND LAKE MOHAWK AROUND 410 PM EDT...
WHARTON AROUND 415 PM EDT...
LAKE TELEMARK AND ROCKAWAY AROUND 420 PM EDT...
GREEN POND AND BOONTON AROUND 425 PM EDT...
KINNELON AROUND 430 PM EDT...
RIVERDALE AROUND 435 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR NEW JERSEY AND EASTERN PENNSYLVANIA. A SEVERE THUNDERSTORM WATCH
ALSO REMAINS IN EFFECT UNTIL 1000 PM EDT WEDNESDAY EVENING FOR
DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN NEW JERSEY.
&&
LAT...LON 4089 7433 4087 7433 4086 7431 4084 7432
4086 7481 4104 7483 4108 7450 4104 7449
4105 7444 4101 7439 4099 7429 4097 7427
4092 7428 4089 7427
TIME...MOT...LOC 2005Z 264DEG 34KT 4096 7470
$$
MPD1 follow-up statement
148
WWUS51 KPHI 012028
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
428 PM EDT WED JUN 1 2011
NJC037-041-012038-
/O.CAN.KPHI.SV.W.0081.000000T0000Z-110601T2045Z/
SUSSEX NJ-WARREN NJ-
428 PM EDT WED JUN 1 2011
...THE SEVERE THUNDERSTORM WARNING FOR EXTREME EAST CENTRAL WARREN
AND SOUTHERN SUSSEX COUNTIES IS CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR NEW JERSEY AND EASTERN PENNSYLVANIA. A SEVERE THUNDERSTORM WATCH
ALSO REMAINS IN EFFECT UNTIL 1000 PM EDT WEDNESDAY EVENING FOR
DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN NEW JERSEY.
LAT...LON 4089 7433 4087 7433 4086 7431 4084 7432
4085 7453 4095 7463 4100 7458 4108 7450
4104 7449 4105 7444 4101 7439 4099 7429
4097 7427 4092 7428 4089 7427
TIME...MOT...LOC 2028Z 275DEG 28KT 4095 7449
$$
NJC027-012045-
/O.CON.KPHI.SV.W.0081.000000T0000Z-110601T2045Z/
MORRIS NJ-
428 PM EDT WED JUN 1 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR NORTHEASTERN MORRIS COUNTY...
AT 424 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR LAKE
TELEMARK...OR 12 MILES NORTH OF MORRISTOWN...MOVING EAST AT 30 MPH.
THE STORM IS CAPABLE OF PRODUCING QUARTER SIZED HAIL AND WIND GUSTS
UP TO 60 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
BOONTON...MOUNTAIN LAKES AND 6 MILES NORTH OF PARSIPPANY BY 435 PM
EDT...
KINNELON AND BUTLER BY 440 PM EDT...
LINCOLN PARK...PEQUANNOCK TOWNSHIP AND RIVERDALE BY 445 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR NEW JERSEY AND EASTERN PENNSYLVANIA.
&&
LAT...LON 4089 7433 4087 7433 4086 7431 4084 7432
4085 7453 4095 7463 4100 7458 4108 7450
4104 7449 4105 7444 4101 7439 4099 7429
4097 7427 4092 7428 4089 7427
TIME...MOT...LOC 2028Z 275DEG 28KT 4095 7449
$$
MPDThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 1:57 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 63 min |
| Jun 1, 3:08 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 16 min |
| Jun 1, 3:26 PM EDT | Special Weather Statement | PHI | Sussex | 64 min |
| Jun 1, 4:00 PM EDT | Small Craft Advisory | PHI | 35 hr | |
| Jun 1, 4:15 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Somerset | 45 min |
| Jun 1, 4:31 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 59 min |
| Jun 1, 4:59 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth | 61 min |
| Jun 1, 5:23 PM EDT | Special Weather Statement | PHI | Salem | 67 min |
| Jun 1, 5:50 PM EDT | Special Marine Warning | PHI | 40 min | |
| Jun 1, 6:11 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 64 min |
| Jun 1, 6:42 PM EDT | Special Marine Warning | PHI | 63 min | |
| Jun 1, 7:22 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 43 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2011Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.