Alert archive / Pennsylvania / Areal Flood Advisories in 2021
Areal Flood Advisory 147, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Aug 26, 2021, 6:24 PM EDT for Carbon County, Pennsylvania. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 26, 2021, 6:24 PM EDT (22:24 UTC)
- Expired
- Aug 26, 2021, 9:20 PM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Carbon County, PA
The radar
The Binghamton radar (KBGM), 136 km from the middle of the area, began a volume at 22:27 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 nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 10.4 hours before the alert went out and 243 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
- 844 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 1230 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
956
WGUS81 KPHI 262224
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
624 PM EDT Thu Aug 26 2021
PAC025-270130-
/O.NEW.KPHI.FA.Y.0147.210826T2224Z-210827T0130Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Carbon PA-
624 PM EDT Thu Aug 26 2021
The National Weather Service in Mount Holly has issued a
* Flood Advisory for...
Central Carbon County in northeastern Pennsylvania...
* Until 930 PM EDT.
* At 624 PM EDT, Doppler radar indicated heavy rain due to
thunderstorms. Minor flooding is ongoing or expected to begin
shortly in the advisory area. Between 1 and 2 inches of rain has
already fallen with up to 1 inch of additional rainfall possible.
* Some locations that may experience flooding include...
Jim Thorpe, Weatherly, and Christmans.
This includes the following highways...
Northeast Extension between mile markers 84 and 88.
LAT...LON 4102 7573 4103 7565 4096 7560 4092 7567
4090 7584 4097 7585 4098 7584 4098 7582
4098 7580 4099 7579 4100 7576 4101 7574
4101 7573 4102 7574
$$
Davis1 follow-up statement
753
WGUS81 KPHI 270120
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
920 PM EDT Thu Aug 26 2021
PAC025-270130-
/O.CAN.KPHI.FA.Y.0147.000000T0000Z-210827T0130Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Carbon PA-
920 PM EDT Thu Aug 26 2021
...FLOOD ADVISORY IS CANCELLED FOR CENTRAL CARBON COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 4102 7573 4103 7565 4096 7560 4092 7567
4090 7584 4097 7585 4098 7584 4098 7582
4098 7580 4099 7579 4100 7576 4101 7574
4101 7573 4102 7574
$$
DealThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 1:20 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 40 min |
| Aug 26, 3:30 PM EDT | Flash Flood Watch | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 48 hr |
| Aug 26, 5:02 PM EDT | Special Weather Statement | PHI | Monroe | 28 min |
| Aug 26, 5:29 PM EDT | Special Weather Statement | PHI | Monroe | 31 min |
| Aug 26, 5:35 PM EDT | Special Weather Statement | PHI | Carbon | 25 min |
| Aug 26, 5:59 PM EDT | Special Weather Statement | PHI | Carbon | 31 min |
| Aug 26, 6:09 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 51 min |
| Aug 26, 6:56 PM EDT | Special Weather Statement | PHI | Philadelphia | 34 min |
| Aug 26, 7:29 PM EDT | Areal Flood Advisory | PHI | Carbon | 2 hr |
Nearby
Areal Flood Advisories in Pennsylvania, 2021Every areal flood advisory in 2021
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.