Severe Thunderstorm Warning 276, NWS Philadelphia/Mount Holly

Issued

Aug 27, 2021, 3:07 PM EDT (19:07 UTC)

Expired

Aug 27, 2021, 3:31 PM EDT

In force

24 min

Issued by

NWS Philadelphia/Mount Holly

Area

Storm-based polygon

Hail

0.75 in

Wind

60.0 mph

Counties Warren County, NJ, Northampton County, PA

The Philadelphia radar (KDIX), 105 km from the middle of the area, began a volume at 19:11 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.

189 
WUUS51 KPHI 271907
SVRPHI
NJC041-PAC095-271945-
/O.NEW.KPHI.SV.W.0276.210827T1907Z-210827T1945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
307 PM EDT Fri Aug 27 2021

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Southwestern Warren County in northwestern New Jersey...
  Southeastern Northampton County in eastern Pennsylvania...

* Until 345 PM EDT.

* At 307 PM EDT, a severe thunderstorm was located over Harmony, or
  near Easton, and is nearly stationary.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Easton, Forks, Wilson, Harmony, Alpha, West Easton, Tatamy,
  Glendon, Roxburg, Old Orchard, Brass Castle, Phillipsburg,
  Stockertown and Palmer Heights.

This includes the following highways...
 Interstate 78 in Pennsylvania between mile markers 74 and 76.
 Interstate 78 in New Jersey between mile markers 0 and 7.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In addition to damaging winds, frequent cloud to ground lightning is 
occurring with this storm. Move indoors immediately. Remember, if 
you can hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 4081 7502 4067 7507 4066 7508 4063 7525
      4076 7526
TIME...MOT...LOC 1907Z 274DEG 4KT 4071 7517 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gorse

538 
WWUS51 KPHI 271921
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
321 PM EDT Fri Aug 27 2021

NJC041-PAC095-271945-
/O.CON.KPHI.SV.W.0276.000000T0000Z-210827T1945Z/
Warren NJ-Northampton PA-
321 PM EDT Fri Aug 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR SOUTHWESTERN WARREN AND SOUTHEASTERN NORTHAMPTON COUNTIES...

At 321 PM EDT, a severe thunderstorm was located over Alpha, or near
Easton, moving east at 5 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...
Easton, Forks, Wilson, Harmony, Alpha, West Easton, Tatamy, Glendon,
Roxburg, Old Orchard, Brass Castle, Phillipsburg, Stockertown and
Palmer Heights.

This includes the following highways...
 Interstate 78 in Pennsylvania between mile markers 74 and 76.
 Interstate 78 in New Jersey between mile markers 0 and 7.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.

&&

LAT...LON 4081 7502 4067 7507 4066 7508 4063 7525
      4076 7526
TIME...MOT...LOC 1921Z 273DEG 6KT 4069 7513 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gorse

189 
WWUS51 KPHI 271931
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
331 PM EDT Fri Aug 27 2021

NJC041-PAC095-271941-
/O.CAN.KPHI.SV.W.0276.000000T0000Z-210827T1945Z/
Warren NJ-Northampton PA-
331 PM EDT Fri Aug 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WARREN AND
SOUTHEASTERN NORTHAMPTON COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However heavy rain is
still possible with this thunderstorm.

LAT...LON 4081 7502 4067 7507 4066 7508 4063 7525
      4076 7526
TIME...MOT...LOC 1929Z 274DEG 4KT 4069 7511 

$$

Gorse

Severe Thunderstorm Warnings in Pennsylvania, 2021Severe Thunderstorm Warnings in New Jersey, 2021Every severe thunderstorm warning in 2021

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.