Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 3, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Mar 15, 2019, 7:23 PM EDT for Bucks County, Pennsylvania; Hunterdon County, New Jersey. It was in force for 52 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
- Mar 15, 2019, 7:23 PM EDT (23:23 UTC)
- Expired
- Mar 15, 2019, 8:15 PM EDT
- In force
- 52 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Hunterdon County, NJ, Bucks County, PA
The radar
The Philadelphia radar (KDIX), 84 km from the middle of the area, began a volume at 23:24 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 |
|---|---|---|---|
| Mar 15, 7:33 PM EDT | HAIL 0.25 | 1 W Milford, NJ |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 11.4 hours before the alert went out and 177 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 841 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 397 m²/s²
- 0-3 km storm-relative helicity
- 414 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
916
WUUS51 KPHI 152323
SVRPHI
NJC019-PAC017-160015-
/O.NEW.KPHI.SV.W.0003.190315T2323Z-190316T0015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
723 PM EDT FRI MAR 15 2019
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Hunterdon County in northwestern New Jersey...
Northwestern Bucks County in southeastern Pennsylvania...
* Until 815 PM EDT.
* At 723 PM EDT, a severe thunderstorm was located over Pleasant
Valley, or 11 miles south of Easton, moving east at 45 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Flemington, High Bridge, Clinton, Glen Gardner, Ferndale,
Frenchtown, Lebanon, Milford, Califon, Riegelsville, Pleasant
Valley, Revere, Ottsville, Springtown, Erwinna, Annandale, White
House Station and Richlandtown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to hail and 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 4052 7477 4051 7480 4048 7478 4045 7535
4053 7535 4060 7522 4061 7520 4059 7518
4063 7513 4074 7477 4072 7472 4064 7473
4063 7471 4060 7472 4058 7471
TIME...MOT...LOC 2323Z 256DEG 40KT 4052 7524
HAIL...0.88IN
WIND...60MPH
$$
Gorse1 follow-up statement
094
WWUS51 KPHI 152337
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
737 PM EDT FRI MAR 15 2019
NJC019-PAC017-160015-
/O.CON.KPHI.SV.W.0003.000000T0000Z-190316T0015Z/
Hunterdon NJ-Bucks PA-
737 PM EDT FRI MAR 15 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR HUNTERDON AND NORTH CENTRAL BUCKS COUNTIES...
At 736 PM EDT, a severe thunderstorm was located over Milford, or 12
miles southeast of Easton, moving east at 45 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Flemington, High Bridge, Clinton, Glen Gardner, Frenchtown, Lebanon,
Milford, Califon, Erwinna, Annandale and White House Station.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to hail and damaging winds, frequent cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
&&
LAT...LON 4052 7477 4051 7480 4048 7478 4046 7511
4063 7513 4074 7477 4072 7472 4064 7473
4063 7471 4060 7472 4058 7471
TIME...MOT...LOC 2336Z 254DEG 41KT 4057 7504
HAIL...0.88IN
WIND...60MPH
$$
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 15, 6:02 PM EDT | Special Weather Statement | PHI | Lehigh, Northampton | 28 min |
| Mar 15, 6:08 PM EDT | Special Weather Statement | PHI | Berks | 37 min |
| Mar 15, 6:27 PM EDT | Special Weather Statement | PHI | Northampton | 33 min |
| Mar 15, 6:33 PM EDT | Areal Flood Advisory | PHI | Berks, Lehigh, Northampton | 117 min |
| Mar 15, 7:09 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 51 min |
| Mar 15, 7:32 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Montgomery | 43 min |
| Mar 15, 3:44 AM EDT | Small Craft Advisory | PHI | 40 hr | |
| Mar 15, 6:43 PM EDT | Special Weather Statement | PHI | Morris, Warren | 32 min |
| Mar 15, 6:53 PM EDT | Special Weather Statement | PHI | Warren | 37 min |
| Mar 15, 7:11 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Warren | 49 min |
| Mar 15, 7:45 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset | 45 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2019Severe Thunderstorm Warnings in New Jersey, 2019Every 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.