Alert archive / Pennsylvania / Flash Flood Warnings in 2011
Flash Flood Warning 36, NWS State College, PA
NWS State College, PA issued this flash flood warning at Aug 28, 2011, 9:01 AM EDT for Columbia County, Lycoming County, Sullivan County, Pennsylvania. It was in force for 4 hr. 1 report 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
- Aug 28, 2011, 9:01 AM EDT (13:01 UTC)
- Expired
- Aug 28, 2011, 1:00 PM EDT
- In force
- 4 hr
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Columbia County, PA, Lycoming County, PA, Sullivan County, PA
The radar
The Binghamton radar (KBGM), 100 km from the middle of the area, began a volume at 13:03 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 |
|---|---|---|---|
| Aug 28, 11:00 AM EDT | FLASH FLOOD | Dushore, PA | ALL MAJOR ROADS CLOSED IN SULLIVAN COUNTY DUE TO FLOODING. BRIDGE ON RT 487 AND RT 220 WASHED OUT. 30 PEOPLE EVACUATED IN DUSHORE BOROUGH. MULTIPLE WATER RESCUES. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 1.0 hours before the alert went out and 238 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
- 9 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 707 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -73 m²/s²
- 0-3 km storm-relative helicity
- -49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
208
WGUS51 KCTP 281301
FFWCTP
PAC037-081-113-281700-
/O.NEW.KCTP.FF.W.0036.110828T1301Z-110828T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
901 AM EDT SUN AUG 28 2011
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTH CENTRAL COLUMBIA COUNTY...
SULLIVAN COUNTY...
NORTHEASTERN LYCOMING COUNTY...
* UNTIL 100 PM EDT...
* AT 848 AM EDT...LOCAL EMERGENCY MANAGEMENT OFFICIALS REPORTED
THAT UPPER PORTIONS OF LOYALSOCK CREEK AND ITS TRIBUTARIES WERE
BEGINNING TO FLOOD. ABOUT 1 FOOT OF WATER WAS REPORTED COVERING
STREETS IN DUSHORE.
AN ADDITIONAL 1 TO 2 HOUR PERIOD OF HEAVY RAIN WILL OCCUR LATE
THIS MORNING...AND COULD CAUSE FURTHER FLOODING DOWNSTREAM.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CENTRAL...
FAIRMOUNT SPRINGS...KETTLE CREEK GORGE...LINCOLN FALLS...MUNCY
VALLEY...RICKETTS GLEN STATE PARK...SHUNK...BARBOURS...
BIGGERTOWN...HUGHESVILLE...LAIRDSVILLE...LOYALSOCKVILLE AND
RALSTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. TURN AROUND...DON'T DROWN! NEVER TRY
TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE
RISING WATER MOVE UP TO HIGHER GROUND.
&&
LAT...LON 4131 7631 4119 7631 4126 7695 4157 7694
4158 7692 4159 7688 4160 7687 4153 7622
$$
FORECASTER: LAMBERT/GRUMMThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 2:37 AM EDT | Areal Flood Warning | CTP | Lancaster, York | 8 hr |
| Aug 28, 9:20 AM EDT | Areal Flood Advisory | CTP | Columbia, Dauphin, Lancaster, Lebanon, Lycoming, Montour and 4 more | 3 hr |
| Aug 28, 10:38 AM EDT | Areal Flood Warning | CTP | York | 4 hr |
| Aug 28, 12:39 PM EDT | Areal Flood Warning | CTP | Lancaster | 5 hr |
| Aug 28, 1:00 PM EDT | Flash Flood Warning | CTP | Columbia, Lycoming, Sullivan | 4 hr |
| Aug 28, 7:04 PM EDT | River Flood Warning | CTP | Lycoming, Sullivan | 3 hr |
| Aug 28, 7:43 PM EDT | River Flood Warning | CTP | Dauphin, Lebanon, Schuylkill | 5 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.