Alert archive / New Jersey / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 2, NWS New York, NY

March 21, 2003Bergen County, New Jersey

NWS New York, NY issued this severe thunderstorm warning at Mar 21, 2003, 5:39 PM EST for Bergen County, New Jersey. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 21, 2003, 5:39 PM EST (22:39 UTC)
Expired: Mar 21, 2003, 6:30 PM EST
In force: 51 min
Issued by: NWS New York, NY
Area: Whole counties

County Bergen County, NJ

The radar

The Brookhaven radar (KOKX), 102 km from the middle of the area, began a volume at 22:39 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 12:00Z, 10.7 hours before the alert went out and 102 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 425 m above ground
0-6 km bulk shear: 88 kt
0-1 km storm-relative helicity: 214 m²/s²
0-3 km storm-relative helicity: 187 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

224 
WUUS51 KOKX 212239
SVROKX
NJC003-212330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE UPTON NY
538 PM EST FRI MAR 21 2003

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BERGEN COUNTY IN NORTHEAST NEW JERSEY

* UNTIL 630 PM EST

* AT 533 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 14 MILES SOUTHWEST OF HAWTHORNE...MOVING
  NORTHEAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HAWTHORNE AND 8 MILES NORTHWEST OF HACKENSACK AROUND 550 PM
  RIDGEWOOD AND PARAMUS AROUND 555 PM
  RAMSEY AND 8 MILES NORTHWEST OF NORWOOD AROUND 600 PM

SOME OTHER LOCATIONS IN THE WARNING INCLUDE ENGLEWOOD...FORT LEE AND 
ORADELL. THIS STORM HAS HAD A HISTORY OF PRODUCING A LOT OF 3/4 TO 
ONE INCH HAIL AT THE START. IF YOU ARE IN THE PATH SEEK SHELTER.

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER.
REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE DAMAGING WINDS IN EXCESS
OF 55 MPH...LARGE DAMAGING HAIL...DEADLY LIGHTNING...AND VERY HEAVY
RAIN.

$$

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN UPTON NY.

LAT...LON 4101 7424 4079 7402 4098 7390 4111 7421

The office that day

Everything else NWS New York, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 21, 5:13 PM EST	Severe Thunderstorm Warning	OKX	Bergen, Essex, Passaic, Union	47 min
Mar 21, 6:39 PM EST	Severe Thunderstorm Warning	OKX	Passaic	36 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2003 Every severe thunderstorm warning in 2003

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.