Alert archive / Pennsylvania / Flash Flood Warnings in 2005
Flash Flood Warning 23, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Oct 8, 2005, 5:10 AM EDT for Berks County, Chester County, Montgomery County, Pennsylvania. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 8, 2005, 5:10 AM EDT (09:10 UTC)
- Expired
- Oct 8, 2005, 11:00 AM EDT
- In force
- 6 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
Counties Berks County, PA, Chester County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 102 km from the middle of the area, began a volume at 09:13 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
Washington/Dulle, VA (KIAD), launched 00:00Z, 9.2 hours before the alert went out and 201 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
- 19 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 486 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 237 m²/s²
- 0-3 km storm-relative helicity
- 260 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS51 KPHI 080909
FFWPHI
PAC011-029-091-081500-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
510 AM EDT SAT OCT 8 2005
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLASH FLOOD WARNING FOR...
BERKS COUNTY IN EASTERN PENNSYLVANIA
CHESTER COUNTY IN SOUTHEAST PENNSYLVANIA
MONTGOMERY COUNTY IN SOUTHEAST PENNSYLVANIA
* UNTIL 1100 AM EDT
* AT 505 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT TWO TO THREE INCHES OF RAIN HAS ALREADY FALLEN IN THE COUNTIES
OF CHESTER, MONTGOMERY AND BERKS. ADDITIONAL HEAVY RAIN IS MOVING
INTO THE THREE COUNTIES.
ADDITIONAL RAINFALL AMOUNTS OF TWO TO THREE INCHES ARE POSSIBLE IN
THE WARNED AREA THIS MORNING.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS, HIGHWAYS AND UNDERPASSES. ADDITIONALLY, COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS, STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.
LAT...LON 4018 7515 4005 7535 4007 7537 4005 7542
4003 7542 4000 7546 3999 7545 3977 7578
3976 7601 4015 7587 4046 7633 4062 7586
$$
IOVINOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 8, 6:30 AM EDT | Flash Flood Warning | PHI | Bucks, Lehigh, Northampton | 6 hr |
| Oct 8, 7:10 PM EDT | Flash Flood Warning | PHI | Delaware, Montgomery, Philadelphia | 3 hr |
| Oct 8, 7:30 PM EDT | Flash Flood Warning | PHI | Berks | 30 min |
| Oct 8, 7:30 PM EDT | Flash Flood Warning | PHI | Berks | 4 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2005Every flash flood warning in 2005
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.