Alert archive / New Jersey / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 225, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 11, 2020, 2:45 PM EDT for Monmouth County, New Jersey. It was in force for 30 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
- Aug 11, 2020, 2:45 PM EDT (18:45 UTC)
- Expired
- Aug 11, 2020, 3:15 PM EDT
- In force
- 30 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Monmouth County, NJ
The radar
The Philadelphia radar (KDIX), 55 km from the middle of the area, began a volume at 18:46 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, 6.8 hours before the alert went out and 115 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
- 1109 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 807 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
129
WUUS51 KPHI 111845
SVRPHI
NJC025-111915-
/O.NEW.KPHI.SV.W.0225.200811T1845Z-200811T1915Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
245 PM EDT Tue Aug 11 2020
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Eastern Monmouth County in central New Jersey...
* Until 315 PM EDT.
* At 245 PM EDT, a severe thunderstorm was located over Tinton Falls,
or 7 miles northwest of Asbury Park, moving northeast at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Long Branch, Asbury Park, Sandy Hook, Middletown, Howell, Marlboro,
Tinton Falls, Holmdel, Red Bank, Keansburg, Highlands, Farmingdale,
East Freehold, West Freehold, Adelphia, Elberon, Navesink,
Collingwood Park, Lincroft and Allenwood.
This includes the following highways...
Interstate 195 in New Jersey between mile markers 31 and 34.
Garden State Parkway between mile markers 97 and 116.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Protecting yourself from immediate threats to life and safety shall
take priority. Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4024 7397 4013 7408 4022 7431 4045 7416
4045 7413 4042 7405 4041 7398 4048 7402
4048 7401 4043 7397
TIME...MOT...LOC 1845Z 212DEG 20KT 4028 7414
HAIL...<.75IN
WIND...60MPH
$$
Fitzsimmons2 follow-up statements
870
WWUS51 KPHI 111901
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
301 PM EDT Tue Aug 11 2020
NJC025-111915-
/O.CON.KPHI.SV.W.0225.000000T0000Z-200811T1915Z/
Monmouth NJ-
301 PM EDT Tue Aug 11 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR NORTHEASTERN MONMOUTH COUNTY...
At 300 PM EDT, a severe thunderstorm was located over Middletown, or
near Sandy Hook, moving northeast at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Long Branch, Sandy Hook, Middletown, Tinton Falls, Holmdel, Red Bank,
Highlands, Navesink, Lincroft, Eatontown, West Long Branch, Rumson,
Little Silver, Oceanport, Shrewsbury, Oakhurst, North Middletown and
Wanamassa.
This includes Garden State Parkway between mile markers 104 and 115.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Protecting yourself from immediate threats to life and safety shall
take priority. Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4023 7404 4031 7422 4045 7415 4041 7402
4041 7398 4048 7402 4048 7401 4043 7397
4031 7397
TIME...MOT...LOC 1900Z 209DEG 21KT 4039 7409
HAIL...<.75IN
WIND...60MPH
$$
Fitzsimmons265
WWUS51 KPHI 111915
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
315 PM EDT Tue Aug 11 2020
NJC025-111925-
/O.EXP.KPHI.SV.W.0225.000000T0000Z-200811T1915Z/
Monmouth NJ-
315 PM EDT Tue Aug 11 2020
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MONMOUTH COUNTY
HAS EXPIRED...
The storm which prompted the warning is moving out of the area.
Therefore, the warning has been allowed to expire. However gusty
winds and heavy rain are still possible with this thunderstorm.
LAT...LON 4023 7404 4031 7422 4045 7415 4041 7402
4041 7398 4048 7402 4048 7401 4043 7397
4031 7397
TIME...MOT...LOC 1915Z 212DEG 20KT 4045 7404
$$
FitzsimmonsThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 4:22 AM EDT | Marine Dense Fog Advisory | PHI | 10 hr | |
| Aug 11, 1:20 PM EDT | Areal Flood Advisory | PHI | Burlington | 115 min |
| Aug 11, 2:27 PM EDT | Areal Flood Advisory | PHI | Monmouth, Ocean | 3 hr |
| Aug 11, 2:42 PM EDT | Special Weather Statement | PHI | Monmouth | 48 min |
| Aug 11, 3:48 PM EDT | Flash Flood Watch | PHI | Burlington, Camden, Cumberland, Gloucester, Hunterdon, Mercer and 6 more | 28 hr |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2020Every severe thunderstorm warning in 2020
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.