Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 110, NWS Philadelphia/Mount Holly

May 30, 2019Cape May County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 30, 2019, 5:32 PM EDT for Cape May County, New Jersey. It was in force for 43 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: May 30, 2019, 5:32 PM EDT (21:32 UTC)
Expired: May 30, 2019, 6:15 PM EDT
In force: 43 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Cape May County, NJ

The radar

The Dover AFB radar (KDOX), 54 km from the middle of the area, began a volume at 21:36 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
May 30, 5:48 PM EDT	MARINE TSTM WIND 42	1 Ssw North Cape May, NJ	CMAN4 NOS GAUGE.

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
May 30, 2:01 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 9.5 hours before the alert went out and 129 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: 23 J/kg
Mixed-layer CIN: -211 J/kg
Mixed-layer LCL: 1498 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 19 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

564 
WUUS51 KPHI 302132
SVRPHI
NJC009-302215-
/O.NEW.KPHI.SV.W.0110.190530T2132Z-190530T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
532 PM EDT Thu May 30 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Southwestern Cape May County in southern New Jersey...

* Until 615 PM EDT.

* At 531 PM EDT, a severe thunderstorm was located 10 miles east of
  Big Stone Beach, or 13 miles west of Cape May, moving east at 40
  mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to roofs, siding, trees, and power lines is 
           possible.

* Locations impacted include...
  Cape May, North Wildwood, Wildwood Crest, West Cape May, Stone
  Harbor, Cape May Court House, Diamond Beach, Green Creek, Rio
  Grande, North Cape May, Villas, West Wildwood, Erma and
  Whitesboro-Burleigh.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3893 7497 3896 7496 3897 7494 3897 7496
      3904 7494 3911 7489 3910 7482 3907 7481
      3905 7482 3906 7475 3903 7476 3903 7479
      3899 7479 3894 7486
TIME...MOT...LOC 2131Z 273DEG 36KT 3895 7515 

HAIL...0.75IN
WIND...60MPH
 
$$

NC

2 follow-up statements

482 
WWUS51 KPHI 302202
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
602 PM EDT Thu May 30 2019

NJC009-302215-
/O.CON.KPHI.SV.W.0110.000000T0000Z-190530T2215Z/
Cape May NJ-
602 PM EDT Thu May 30 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTHWESTERN CAPE MAY COUNTY...

At 602 PM EDT, a severe thunderstorm was located near Wildwood Crest,
or 7 miles east of Cape May, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Cape May, North Wildwood, Wildwood Crest, West Cape May, Stone
Harbor, Diamond Beach, Green Creek, Rio Grande, North Cape May, Cape
May Court House, Villas, West Wildwood, Erma and Whitesboro-Burleigh.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3893 7497 3896 7496 3897 7494 3897 7496
      3904 7494 3908 7491 3908 7484 3906 7483
      3906 7481 3905 7482 3906 7475 3903 7476
      3903 7479 3899 7479 3894 7486
TIME...MOT...LOC 2202Z 273DEG 36KT 3893 7475 

HAIL...<.75IN
WIND...60MPH
 
$$

NC

831 
WWUS51 KPHI 302209
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
609 PM EDT Thu May 30 2019

NJC009-302218-
/O.EXP.KPHI.SV.W.0110.000000T0000Z-190530T2215Z/
Cape May NJ-
609 PM EDT Thu May 30 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN CAPE MAY COUNTY
WILL EXPIRE AT 615 PM EDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

A severe thunderstorm watch remains in effect until 900 PM EDT for
southern New Jersey.

LAT...LON 3893 7497 3896 7496 3897 7494 3897 7496
      3904 7494 3908 7491 3908 7484 3906 7483
      3906 7481 3905 7482 3906 7475 3903 7476
      3903 7479 3899 7479 3894 7486
TIME...MOT...LOC 2208Z 273DEG 36KT 3893 7479 

$$

NC

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 29, 8:00 PM EDT	Special Marine Warning	PHI		60 min
May 29, 8:02 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Cape May, Ocean	107 min
May 29, 8:35 PM EDT	Special Marine Warning	PHI		85 min
May 30, 3:20 AM EDT	Flash Flood Watch	PHI	Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 7 more	18 hr
May 30, 3:33 AM EDT	Dense Fog Advisory	PHI	Burlington, Mercer	4 hr
May 30, 4:17 PM EDT	Areal Flood Advisory	PHI	Sussex, Warren	4 hr
May 30, 4:19 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester	4 hr
May 30, 4:25 PM EDT	Special Weather Statement	PHI	Warren	35 min
May 30, 4:36 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Monmouth, Ocean	39 min
May 30, 4:40 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Warren	50 min
May 30, 4:46 PM EDT	Special Weather Statement	PHI	Salem	29 min
May 30, 4:48 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	42 min
May 30, 4:49 PM EDT	Flash Flood Warning	PHI	Warren	4 hr
May 30, 4:57 PM EDT	Areal Flood Advisory	PHI	Burlington, Hunterdon, Mercer, Middlesex, Monmouth, Ocean and 1 more	4 hr
May 30, 4:58 PM EDT	Special Marine Warning	PHI		62 min
May 30, 5:03 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Morris, Somerset, Warren	4 hr
May 30, 5:14 PM EDT	Special Weather Statement	PHI	Salem	31 min
May 30, 5:17 PM EDT	Flash Flood Warning	PHI	Burlington, Camden, Mercer, Monmouth	4 hr
May 30, 5:20 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Morris, Somerset, Warren	40 min
May 30, 5:22 PM EDT	Areal Flood Advisory	PHI	Cape May, Cumberland, Gloucester, Salem	2 hr
May 30, 5:23 PM EDT	Special Weather Statement	PHI	Mercer	37 min
May 30, 5:33 PM EDT	Special Marine Warning	PHI		27 min
May 30, 5:55 PM EDT	Special Marine Warning	PHI		65 min
May 30, 5:55 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Morris, Somerset	31 min
May 30, 6:06 PM EDT	Flash Flood Warning	PHI	Hunterdon, Middlesex, Morris, Somerset	4 hr
May 30, 6:53 PM EDT	Flash Flood Warning	PHI	Morris, Somerset	4 hr
May 30, 7:35 PM EDT	Special Weather Statement	PHI	Mercer	25 min
May 30, 7:56 PM EDT	Special Weather Statement	PHI	Mercer	34 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2019 Every severe thunderstorm warning in 2019

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.