Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 6, NWS Philadelphia/Mount Holly

April 15, 2019Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 15, 2019, 1:28 AM EDT for Carbon County, Monroe County, Pennsylvania. It was in force for 47 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: Apr 15, 2019, 1:28 AM EDT (05:28 UTC)
Expired: Apr 15, 2019, 2:15 AM EDT
In force: 47 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Carbon County, PA, Monroe County, PA

The radar

The Binghamton radar (KBGM), 129 km from the middle of the area, began a volume at 05:27 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 15, 1:05 AM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 5.5 hours before the alert went out and 234 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: 7 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 437 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 236 m²/s²
0-3 km storm-relative helicity: 268 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

171 
WUUS51 KPHI 150528
SVRPHI
PAC025-089-150615-
/O.NEW.KPHI.SV.W.0006.190415T0528Z-190415T0615Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
128 AM EDT MON APR 15 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Central Carbon County in northeastern Pennsylvania...
  Northwestern Monroe County in northeastern Pennsylvania...

* Until 215 AM EDT.

* At 127 AM EDT, severe thunderstorms were located along a line
  extending from near Sweet Valley to near Slocum to near Shenandoah,
  moving northeast at 65 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Mount Pocono, Tobyhanna, Weatherly, Pocono Pines, Pocono Raceway,
  Lake Harmony, Skytop, Mountainhome, Canadensis, Blakeslee, Long
  Pond, Albrightsville, Gouldsboro State Park, Arrowhead Lake,
  Paradise Valley, Beaver Meadows, Cresco and Tresckow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Mount Holly NJ.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

A tornado watch remains in effect until 700 AM EDT for northeastern
Pennsylvania.

LAT...LON 4114 7524 4085 7593 4091 7599 4098 7582
      4101 7573 4103 7574 4105 7577 4109 7577
      4113 7569 4112 7564 4123 7554 4124 7521
TIME...MOT...LOC 0527Z 235DEG 57KT 4126 7605 4109 7606 4085 7621 

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

MPS

2 follow-up statements

455 
WWUS51 KPHI 150605
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
205 AM EDT MON APR 15 2019

PAC025-089-150615-
/O.CON.KPHI.SV.W.0006.000000T0000Z-190415T0615Z/
Carbon PA-Monroe PA-
205 AM EDT MON APR 15 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM EDT
FOR NORTHERN CARBON AND WEST CENTRAL MONROE COUNTIES...

At 205 AM EDT, severe thunderstorms were located along a line
extending from near Bear Creek Village to near White Haven to near
New Mahoning, moving east at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Weatherly, Blakeslee, Lake Harmony and Christmans. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

A tornado watch remains in effect until 700 AM EDT for northeastern
Pennsylvania.

LAT...LON 4119 7558 4106 7558 4097 7564 4087 7589
      4098 7581 4101 7573 4103 7574 4105 7577
      4109 7577 4113 7569 4112 7564
TIME...MOT...LOC 0605Z 258DEG 31KT 4121 7570 4104 7571 4080 7586 

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

MPS

290 
WWUS51 KPHI 150617
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
217 AM EDT MON APR 15 2019

PAC025-089-150627-
/O.EXP.KPHI.SV.W.0006.000000T0000Z-190415T0615Z/
Carbon PA-Monroe PA-
217 AM EDT MON APR 15 2019

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CARBON AND WEST
CENTRAL MONROE COUNTIES HAS EXPIRED...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been allowed to expire.  However gusty
winds and heavy rain are still possible with these thunderstorms.

A tornado watch remains in effect until 700 AM EDT for northeastern
Pennsylvania.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
in Mount Holly NJ.

LAT...LON 4119 7558 4106 7558 4097 7564 4087 7589
      4098 7581 4101 7573 4103 7574 4105 7577
      4109 7577 4113 7569 4112 7564
TIME...MOT...LOC 0617Z 235DEG 57KT 4130 7554 4113 7555 4089 7570 

$$

MPS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 9:19 PM EDT	Areal Flood Advisory	PHI	Berks	3 hr
Apr 15, 12:03 AM EDT	Special Weather Statement	PHI	Monroe	27 min
Apr 15, 1:10 AM EDT	Special Weather Statement	PHI	Schuylkill	50 min
Apr 15, 1:26 AM EDT	Areal Flood Advisory	PHI	Carbon, Monroe	4 hr
Apr 15, 1:43 AM EDT	Areal Flood Advisory	PHI	Berks	4 hr
Apr 15, 1:58 AM EDT	Special Weather Statement	PHI	Berks, Carbon, Monroe	47 min
Apr 15, 2:21 AM EDT	Areal Flood Advisory	PHI	Lehigh, Northampton	4 hr
Apr 15, 2:28 AM EDT	Special Weather Statement	PHI	Chester	32 min
Apr 15, 2:34 AM EDT	Special Weather Statement	PHI	Berks, Chester, Lehigh, Northampton	41 min
Apr 15, 2:46 AM EDT	Severe Thunderstorm Warning	PHI	Delaware	44 min
Apr 15, 3:03 AM EDT	Severe Thunderstorm Warning	PHI	Bucks, Lehigh, Montgomery, Northampton	20 min
Apr 15, 3:11 AM EDT	Special Weather Statement	PHI	Bucks, Montgomery, Northampton	49 min
Apr 15, 3:19 AM EDT	Tornado Warning	PHI	Delaware, Montgomery, Philadelphia	26 min
Apr 15, 3:19 AM EDT	Wind Advisory	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	18 hr
Apr 15, 3:27 AM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Montgomery	32 min
Apr 15, 3:39 AM EDT	Severe Thunderstorm Warning	PHI	Bucks, Philadelphia	37 min
Apr 15, 3:59 AM EDT	Areal Flood Advisory	PHI	Montgomery	4 hr

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.