Alert archive / Pennsylvania / Flash Flood Warnings in 2015
Flash Flood Warning 3, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at May 31, 2015, 5:42 PM EDT for Carbon County, Monroe County, Pennsylvania. It was in force for 6 hr. 2 reports 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
- May 31, 2015, 5:42 PM EDT (21:42 UTC)
- Expired
- May 31, 2015, 11:45 PM EDT
- In force
- 6 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Carbon County, PA, Monroe County, PA
The radar
The Binghamton radar (KBGM), 139 km from the middle of the area, began a volume at 21:44 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 |
|---|---|---|---|
| May 31, 8:13 PM EDT | FLOOD | Mahoning Twp, PA | SR-443 HAS FLOODING IN THE AREA OF 84-LUMBER. |
| May 31, 8:13 PM EDT | FLASH FLOOD | Mahoning Twp, PA | SR-443 HAS FLOODING IN THE AREA OF 84-LUMBER. |
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, 9.7 hours before the alert went out and 215 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
- 106 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 746 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
817
WGUS51 KPHI 312142
FFWPHI
PAC025-089-010345-
/O.NEW.KPHI.FF.W.0003.150531T2142Z-150601T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
542 PM EDT SUN MAY 31 2015
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLASH FLOOD WARNING FOR...
MONROE COUNTY IN NORTHEASTERN PENNSYLVANIA...
CARBON COUNTY IN NORTHEASTERN PENNSYLVANIA...
* UNTIL 1145 PM EDT SUNDAY
* AT 539 PM EDT...DOPPLER RADAR INDICATED MULTIPLE THUNDERSTORMS
PRODUCING HEAVY RAIN ACROSS THE POCONOS, WITH MORE STORMS HEADING
INTO THE AREA. LOCALLY UP TO TWO INCHES OF RAIN HAVE ALREADY
FALLEN TODAY. WITH ADDITIONAL THUNDERSTORMS WITH HEAVY RAIN MOVING
INTO THE AREA, FLASH FLOODING IS EXPECTED TO OCCUR.
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE LIKELY IN THE
WARNED AREA WITH THE MOST INTENSE STORMS. IN ADDITION, THE HEAVY
RAIN WILL KNOCK DOWN LEANING, WEAK TREES IN THE REGION.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS ONCE ITS NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODING.
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 4115 7515 4114 7509 4108 7503 4109 7497
4099 7513 4095 7515 4093 7522 4086 7529
4083 7538 4078 7567 4073 7576 4091 7599
4101 7573 4105 7577 4109 7577 4113 7569
4112 7564 4123 7554 4125 7513
$$2 follow-up statements
009
WGUS71 KPHI 312248
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
648 PM EDT SUN MAY 31 2015
PAC025-089-010345-
/O.CON.KPHI.FF.W.0003.000000T0000Z-150601T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONROE PA-CARBON PA-
648 PM EDT SUN MAY 31 2015
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT SUNDAY
FOR MONROE AND CARBON COUNTIES...
AT 645 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN RE-ENTERING CARBON COUNTY WITH ANOTHER THUNDERSTORM WITH
VERY HEAVY RAIN NEAR MCMICHAEL IN MONROE COUNTY. LOCALLY UP TO THREE
INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS LIKELY TO
OCCUR.
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE
WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 4115 7515 4114 7509 4108 7503 4109 7497
4099 7513 4095 7515 4093 7522 4086 7529
4083 7538 4078 7567 4073 7576 4091 7599
4101 7573 4105 7577 4109 7577 4113 7569
4112 7564 4123 7554 4125 7513
$$864
WGUS71 KPHI 010244
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1044 PM EDT SUN MAY 31 2015
PAC025-089-010345-
/O.CON.KPHI.FF.W.0003.000000T0000Z-150601T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONROE PA-CARBON PA-
1044 PM EDT SUN MAY 31 2015
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT SUNDAY
FOR MONROE AND CARBON COUNTIES...
AT 1040 PM EDT...DOPPLER RADAR INDICATED SCATTERED HEAVY SHOWERS AND
ISOLATED THUNDERSTORMS STILL PRODUCING SPOTTY HEAVY RAIN ACROSS THE
WARNED AREA.
THERE IS CURRENTLY NO PLAN TO EXTEND THE WARNING ALTHOUGH MORE
SHOWERS AND STORMS WILL BE MOVING ACROSS THE POCONOS THROUGH THE
EARLY MORNING HOURS. THE WORST OF THE TORRENTIAL RAINS HAS ALREADY
OCCURRED. THERE MAY BE POCKETS OF RESIDUAL FLOODING CONTINUE FOR A
WHILE LONGER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES AND ITS MUCH MORE DANGEROUS TO CROSS A
FLOODED ROAD AT NIGHT.
&&
LAT...LON 4115 7515 4114 7509 4108 7503 4109 7497
4099 7513 4095 7515 4093 7522 4086 7529
4084 7544 4085 7557 4073 7576 4089 7590
4096 7585 4101 7573 4105 7577 4109 7577
4113 7569 4112 7564 4123 7554 4125 7513
$$
DRAGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 8:19 PM EDT | Special Weather Statement | PHI | Carbon | 56 min |
| May 30, 8:46 PM EDT | Special Weather Statement | PHI | Lebanon | 29 min |
| May 30, 9:03 PM EDT | Areal Flood Advisory | PHI | Berks | 3 hr |
| May 30, 9:11 PM EDT | Special Weather Statement | PHI | Lebanon | 64 min |
| May 30, 9:20 PM EDT | Special Weather Statement | PHI | Carbon | 55 min |
| May 30, 9:36 PM EDT | Areal Flood Advisory | PHI | Carbon | 3 hr |
| May 31, 1:00 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 45 min |
| May 31, 1:11 PM EDT | Flash Flood Watch | PHI | Berks, Bucks, Carbon, Lehigh, Monroe, Northampton | 13 hr |
| May 31, 4:33 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 42 min |
| May 31, 5:12 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 63 min |
| May 31, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 37 min |
| May 31, 7:08 PM EDT | Special Weather Statement | PHI | Lehigh | 82 min |
| May 31, 7:27 PM EDT | Areal Flood Advisory | PHI | Berks, Lehigh | 5 hr |
| May 31, 7:46 PM EDT | Flash Flood Warning | PHI | Berks, Lehigh | 4 hr |
| May 31, 7:48 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 35 min |
| May 31, 7:57 PM EDT | Areal Flood Advisory | PHI | Lehigh, Northampton | 6 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2015Every flash flood warning in 2015
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.