Alert archive / Pennsylvania / Areal Flood Warnings in 2012
Areal Flood Warning 33, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood warning at Oct 29, 2012, 4:48 PM EDT for Berks County, Pennsylvania. It was in force for 14 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 29, 2012, 4:48 PM EDT (20:48 UTC)
- Expired
- Oct 30, 2012, 6:45 AM EDT
- In force
- 14 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
County Berks County, PA
The radar
The Philadelphia radar (KDIX), 146 km from the middle of the area, began a volume at 20:50 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 12:00Z, 8.8 hours before the alert went out and 209 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
- 570 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 186 m²/s²
- 0-3 km storm-relative helicity
- 266 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
306
WGUS41 KPHI 292048
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
448 PM EDT MON OCT 29 2012
PAC011-300445-
/O.NEW.KPHI.FA.W.0033.121029T2048Z-121030T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BERKS PA-
448 PM EDT MON OCT 29 2012
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLOOD WARNING FOR...
BERKS COUNTY IN EASTERN PENNSYLVANIA...
* UNTIL 1245 AM EDT
* AT 443 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
AN AREA OF HEAVY RAIN MOVING INTO THE LEHIGH VALLEY. DOPPLER RADAR
ESTIMATES AS MUCH AS THREE AND ONE-HALF INCHES OF RAIN HAS FALLEN SO
THUS.
* CREEKS AND STREAMS CONTINUE TO RISE IN THE AREA...AND THE
MANATAWNY CREEK IN SPANGVILLE IS APPROACHING FLOOD STAGE.
* FLOODING IS EXPECTED IN AREAS OF POOR DRAINAGE. ROADWAY FLOODING
IS ALSO ANTICIPATED. DO NOT DRIVE THROUGH FLOOD WATERS...AS THE
WATER MAY BE DEEPER THAN YOU THINK IT IS. IF YOU LIVE IN A FLOOD
PRONE AREA...BE PREPARED TO MOVE TO HIGHER GROUND.
A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED.
HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS
IMMEDIATELY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.
&&
LAT...LON 4049 7642 4053 7627 4052 7624 4059 7604
4058 7602 4061 7601 4068 7590 4055 7568
4044 7553 4037 7559 4019 7579 4015 7585
$$
HAYES1 follow-up statement
070
WGUS41 KPHI 300356
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1156 PM EDT MON OCT 29 2012
PAC011-301045-
/O.EXT.KPHI.FA.W.0033.000000T0000Z-121030T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BERKS PA-
1156 PM EDT MON OCT 29 2012
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE
* FLOOD WARNING FOR...
BERKS COUNTY IN EASTERN PENNSYLVANIA...
* UNTIL 645 AM EDT TUESDAY
* AT 1151 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THE BACK SIDE OF THE HEAVY RAIN HAD TRACKED THROUGH THE WARNED AREA
AS SANDY CONTINUED TO MOVE WEST. STILL...SURFACE OBSERVATIONS AND
DOPPLER RADAR ESTIMATES INDICATED THAT 3 TO 5 INCHES OF RAIN HAD
FALLEN ACROSS THE AREA. MORE LIGHT TO MODERATE RAINFALL IS EXPECTED
OVERNIGHT.
* CREEKS AND STREAMS CONTINUE TO RISE IN THE AREA...AND THE
MANATAWNY CREEK IN SPANGVILLE IS FLOODING.
* FLOODING IS EXPECTED IN AREAS OF POOR DRAINAGE. ROADWAY FLOODING
IS ALSO ANTICIPATED. DO NOT DRIVE THROUGH FLOOD WATERS...AS THE
WATER MAY BE DEEPER THAN YOU THINK IT IS. IF YOU LIVE IN A FLOOD
PRONE AREA...BE PREPARED TO MOVE TO HIGHER GROUND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
&&
LAT...LON 4049 7642 4053 7627 4052 7624 4059 7604
4058 7602 4061 7601 4068 7590 4055 7568
4044 7553 4037 7559 4019 7579 4015 7585
$$
KRUZDLOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 29, 7:40 AM EDT | Areal Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 23 hr |
| Oct 29, 11:15 AM EDT | River Flood Warning | PHI | Chester, Delaware | 33 hr |
| Oct 29, 11:21 AM EDT | River Flood Warning | PHI | Chester | 21 hr |
| Oct 29, 11:29 AM EDT | River Flood Warning | PHI | Delaware | 19 hr |
| Oct 29, 11:34 AM EDT | River Flood Warning | PHI | Bucks | 18 hr |
| Oct 29, 11:34 AM EDT | River Flood Warning | PHI | Montgomery | 18 hr |
| Oct 29, 4:28 PM EDT | Special Weather Statement | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 2 hr |
Nearby
Areal Flood Warnings in Pennsylvania, 2012Every areal flood warning in 2012
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.