Alert archive / Pennsylvania / Flash Flood Warnings in 2011
Flash Flood Warning 50, NWS State College, PA
NWS State College, PA issued this flash flood warning at Sep 9, 2011, 6:54 PM EDT for 4 counties in Pennsylvania. It was in force for 3 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
- Sep 9, 2011, 6:54 PM EDT (22:54 UTC)
- Expired
- Sep 9, 2011, 10:00 PM EDT
- In force
- 3 hr
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Bedford County, PA, Blair County, PA, Cambria County, PA, Clearfield County, PA
The radar
The State College radar (KCCX), 80 km from the middle of the area, began a volume at 22:58 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 |
|---|---|---|---|
| Sep 9, 7:00 PM EDT | FLASH FLOOD | 3 Nw Horseshoe Curve, PA | INTERSECTIONS AND ROADS FLOODED |
| Sep 9, 8:28 PM EDT | FLASH FLOOD | Altoona, PA | STREET FLOODING REPORTED IN PARTS OF LOGAN TWP. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 10.9 hours before the alert went out and 120 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
- 72 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 547 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
216
WGUS51 KCTP 092254
FFWCTP
PAC009-013-021-033-100200-
/O.NEW.KCTP.FF.W.0050.110909T2254Z-110910T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
654 PM EDT FRI SEP 9 2011
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTH CENTRAL BEDFORD COUNTY...
WESTERN BLAIR COUNTY...
CAMBRIA COUNTY...
SOUTHWESTERN CLEARFIELD COUNTY...
* UNTIL 1000 PM EDT...
* AT 651 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM A THUNDERSTORM OVER CAMBRIA...NORTH CENTRAL
BEDFORD...SOUTHWESTERN CLEARFIELD AND WESTERN BLAIR COUNTIES.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ALTOONA...
EBENSBURG...JOHNSTOWN...NANTY-GLO AND PORTAGE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. NEVER ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR IN AN
AUTOMOBILE. TURN AROUND DON'T DROWN!
&&
LAT...LON 4018 7869 4024 7866 4024 7880 4036 7900
4072 7881 4083 7881 4070 7839 4058 7835
4012 7860
$$
FORECASTER: DEVOIRThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 2:55 AM EDT | Areal Flood Warning | CTP | Adams, Cumberland, Perry | 6 hr |
| Sep 9, 9:18 AM EDT | Areal Flood Warning | CTP | Dauphin, Lancaster, Lebanon, York | 8 hr |
| Sep 9, 11:44 AM EDT | Areal Flood Advisory | CTP | Bedford, Cambria, Somerset | 2 hr |
| Sep 9, 1:42 PM EDT | Areal Flood Advisory | CTP | Adams | 108 min |
| Sep 9, 2:35 PM EDT | Flash Flood Warning | CTP | Bedford, Cambria, Somerset | 3 hr |
| Sep 9, 2:50 PM EDT | Flash Flood Warning | CTP | Adams, Cumberland, Franklin, Fulton | 3 hr |
| Sep 9, 4:27 PM EDT | Areal Flood Advisory | CTP | McKean, Potter, Warren | 3 hr |
| Sep 9, 5:30 PM EDT | Flash Flood Warning | CTP | Bedford, Blair, Cumberland, Franklin, Fulton, Huntingdon | 3 hr |
| Sep 9, 6:07 PM EDT | Flash Flood Warning | CTP | Adams, Blair, Cumberland, Franklin, Huntingdon, Juniata and 2 more | 3 hr |
| Sep 9, 7:06 PM EDT | Areal Flood Advisory | CTP | Elk | 3 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2011Every flash flood warning in 2011
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.