Alert archive / Pennsylvania / Tornado Warnings in 2020
Tornado Warning 25, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this tornado warning at Aug 4, 2020, 9:58 AM EDT for Monroe County, Pennsylvania. It was in force for 16 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 4, 2020, 9:58 AM EDT (13:58 UTC)
- Expired
- Aug 4, 2020, 10:14 AM EDT
- In force
- 16 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Monroe County, PA
The radar
The Binghamton radar (KBGM), 132 km from the middle of the area, began a volume at 13:59 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, 2.0 hours before the alert went out and 199 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
- 1593 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 570 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 245 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 7.4
The text
As transmitted.
821
WFUS51 KPHI 041358
TORPHI
PAC089-041430-
/O.NEW.KPHI.TO.W.0025.200804T1358Z-200804T1430Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
958 AM EDT Tue Aug 4 2020
The National Weather Service in Mount Holly NJ has issued a
* Tornado Warning for...
Northeastern Monroe County in northeastern Pennsylvania...
* Until 1030 AM EDT.
* At 958 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Analomink, or 7 miles southeast of Mount Pocono,
moving north at 35 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations impacted include...
East Stroudsburg, Henryville, Paradise Valley, Analomink, Skytop,
Canadensis, Mountainhome, Alpine Mountain, Cresco and Arlington
Heights.
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.
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4124 7513 4115 7515 4114 7509 4101 7516
4101 7528 4124 7537 4124 7536 4125 7513
TIME...MOT...LOC 1358Z 177DEG 32KT 4105 7524
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Gorse2 follow-up statements
559
WWUS51 KPHI 041406
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
1006 AM EDT Tue Aug 4 2020
PAC089-041430-
/O.CON.KPHI.TO.W.0025.000000T0000Z-200804T1430Z/
Monroe PA-
1006 AM EDT Tue Aug 4 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 AM EDT FOR NORTH
CENTRAL MONROE COUNTY...
At 1006 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Henryville, or near Mount Pocono, moving north at 20
mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Henryville, Paradise Valley, Analomink, Skytop, Canadensis,
Mountainhome, Alpine Mountain and Cresco.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Protecting yourself from immediate threats to life and safety shall
take priority. Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4124 7513 4115 7515 4105 7515 4105 7529
4124 7537 4124 7536 4125 7513
TIME...MOT...LOC 1406Z 172DEG 18KT 4107 7525
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Gorse349
WWUS51 KPHI 041414
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
1014 AM EDT Tue Aug 4 2020
PAC089-041424-
/O.CAN.KPHI.TO.W.0025.000000T0000Z-200804T1430Z/
Monroe PA-
1014 AM EDT Tue Aug 4 2020
...THE TORNADO WARNING FOR NORTH CENTRAL MONROE COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.
LAT...LON 4124 7513 4115 7515 4105 7515 4105 7529
4124 7537 4124 7536 4125 7513
TIME...MOT...LOC 1413Z 177DEG 32KT 4114 7526
$$
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 5:17 AM EDT | Areal Flood Advisory | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Aug 4, 7:23 AM EDT | Tornado Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 20 min |
| Aug 4, 7:28 AM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery | 3 hr |
| Aug 4, 8:11 AM EDT | Flash Flood Warning | PHI | Bucks, Lehigh, Montgomery, Northampton | 4 hr |
| Aug 4, 8:19 AM EDT | River Flood Warning | PHI | Delaware | 15 hr |
| Aug 4, 8:19 AM EDT | Tornado Warning | PHI | Bucks | 26 min |
| Aug 4, 9:23 AM EDT | Tornado Warning | PHI | Chester | 22 min |
| Aug 4, 9:29 AM EDT | Tornado Warning | PHI | Monroe, Northampton | 31 min |
| Aug 4, 9:38 AM EDT | Flash Flood Warning | PHI | Monroe, Northampton | 4 hr |
| Aug 4, 10:02 AM EDT | Flash Flood Warning | PHI | Chester, Delaware | 4 hr |
| Aug 4, 10:20 AM EDT | Flash Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Aug 4, 10:51 AM EDT | Tornado Warning | PHI | Montgomery | 24 min |
| Aug 4, 11:01 AM EDT | Flash Flood Warning | PHI | Bucks | 4 hr |
| Aug 4, 11:13 AM EDT | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 4 hr |
| Aug 4, 11:43 AM EDT | Flash Flood Warning | PHI | Berks, Lehigh, Northampton | 4 hr |
| Aug 4, 12:06 PM EDT | River Flood Warning | PHI | Chester | 11 hr |
| Aug 4, 12:37 PM EDT | River Flood Warning | PHI | Montgomery | 14 hr |
| Aug 4, 12:48 PM EDT | River Flood Warning | PHI | Chester, Delaware | 24 hr |
| Aug 4, 1:01 PM EDT | River Flood Warning | PHI | Bucks | 18 hr |
| Aug 4, 1:12 PM EDT | River Flood Warning | PHI | Berks | 10 hr |
| Aug 4, 1:12 PM EDT | River Flood Warning | PHI | Montgomery | 26 hr |
| Aug 4, 1:12 PM EDT | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 43 hr |
| Aug 4, 1:12 PM EDT | River Flood Warning | PHI | Montgomery, Philadelphia | 35 hr |
| Aug 4, 1:59 PM EDT | Areal Flood Warning | PHI | Chester, Delaware | 9 hr |
| Aug 4, 2:09 PM EDT | Areal Flood Warning | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 15 hr |
| Aug 4, 2:23 PM EDT | River Flood Warning | PHI | Lehigh | 16 hr |
| Aug 4, 2:47 PM EDT | Areal Flood Warning | PHI | Bucks | 9 hr |
| Aug 4, 3:42 PM EDT | Areal Flood Warning | PHI | Lehigh, Northampton | 4 hr |
| Aug 4, 4:39 PM EDT | River Flood Warning | PHI | Monroe | 6 hr |
| Aug 4, 7:29 PM EDT | Areal Flood Warning | PHI | Lehigh, Northampton | 12 hr |
Nearby
Tornado Warnings in Pennsylvania, 2020Every tornado warning in 2020Tornadoes 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.