Alert archive / Pennsylvania / Flash Flood Warnings in 2016

Flash Flood Warning 7, NWS State College, PA

August 10, 2016Warren County, Pennsylvania

NWS State College, PA issued this flash flood warning at Aug 10, 2016, 5:28 AM EDT for Warren County, Pennsylvania. It was in force for 3 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 10, 2016, 5:28 AM EDT (09:28 UTC)
Expired: Aug 10, 2016, 8:30 AM EDT
In force: 3 hr
Issued by: NWS State College, PA
Area: Storm-based polygon
Flood severity: None

County Warren County, PA

The radar

The Buffalo radar (KBUF), 125 km from the middle of the area, began a volume at 09:28 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 10, 6:30 AM EDT	FLASH FLOOD	Tidioute, PA	ONE LANE OF ROUTE 62 CLOSED/FLOODED

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 00:00Z, 9.5 hours before the alert went out and 124 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 21 J/kg
Mixed-layer CIN: -206 J/kg
Mixed-layer LCL: 1813 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 83 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

388 
WGUS51 KCTP 100928
FFWCTP
PAC123-101230-
/O.NEW.KCTP.FF.W.0007.160810T0928Z-160810T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
528 AM EDT WED AUG 10 2016

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WARREN COUNTY IN NORTH CENTRAL PENNSYLVANIA...

* UNTIL 830 AM EDT.

* AT 522 AM EDT...DOPPLER RADAR INDICATED LOCALLY VERY HEAVY RAIN
  FROM TRAINING THUNDERSTORMS CONTINUING TO FALL ACROSS THE WARNED
  AREA. 3 TO 4 INCHES OF RAIN HAS ALREADY FALLEN ACROSS PORTIONS OF
  NORTHWEST WARREN COUNTY AND FLASH FLOODING IS IMMINENT OR ALREADY
  OCCURRING NEAR GARLAND...SPRING CREEK AND COLUMBUS.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  WARREN...WARREN SOUTH...SPRING CREEK...KINZUA DAM...GARLAND...
  GRAND VALLEY...RUSSELL...SCANDIA...LOTTSVILLE...YOUNGSVILLE...
  COLUMBUS...CHAPMAN STATE PARK...TIDIOUTE...STARBRICK...CLARENDON...
  SUGAR GROVE AND BEAR LAKE.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE EXPECTED ACROSS
PARTS OF THE WARNED AREA OVER THE NEXT FEW HOURS...MAINLY NEAR AND
TO THE SOUTH OF GARLAND TO GRAND VALLEY AND TIDIOUTE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED
ROADS. FIND AN ALTERNATE ROUTE.

&&

LAT...LON 4200 7892 4194 7891 4187 7894 4163 7931
      4163 7961 4200 7961

$$

LAMBERT/RADZANOWSKI

1 follow-up statement

151 
WGUS71 KCTP 101211
FFSCTP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
811 AM EDT WED AUG 10 2016

PAC123-101219-
/O.CAN.KCTP.FF.W.0007.000000T0000Z-160810T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN PA-
811 AM EDT WED AUG 10 2016

...THE FLASH FLOOD WARNING FOR WARREN COUNTY IS CANCELLED...

AT 800 AM EDT...WARREN COUNTY 911 CENTER REPORTED WATER OVER ROADS
ESPECIALLY ROUTE 62 IN THE TIDIOUTE AREA. HEAVY RAIN HAS ENDED WITH
FLOODING IMPACTS EXPECTED TO SUBSIDE THIS MORNING. PLEASE CONTINUE
TO HEED ANY ROAD CLOSURES.

LAT...LON 4200 7892 4194 7891 4187 7894 4163 7931
      4163 7961 4200 7961

$$

STEINBUGL

The office that day

Everything else NWS State College, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 10, 3:35 AM EDT	Areal Flood Advisory	CTP	Warren	4 hr
Aug 10, 6:14 AM EDT	Areal Flood Advisory	CTP	Cameron, Elk, McKean, Potter, Warren	3 hr
Aug 10, 6:17 AM EDT	Special Weather Statement	CTP	Elk	43 min
Aug 10, 4:30 PM EDT	Special Weather Statement	CTP	Mifflin	30 min
Aug 10, 4:50 PM EDT	Special Weather Statement	CTP	Snyder	25 min
Aug 10, 4:54 PM EDT	Special Weather Statement	CTP	Blair	36 min
Aug 10, 5:39 PM EDT	Special Weather Statement	CTP	Elk	36 min
Aug 10, 5:54 PM EDT	Special Weather Statement	CTP	Huntingdon	36 min
Aug 10, 6:15 PM EDT	Special Weather Statement	CTP	Cameron	45 min
Aug 10, 6:23 PM EDT	Areal Flood Advisory	CTP	Huntingdon, Juniata, Mifflin	52 min
Aug 10, 6:27 PM EDT	Special Weather Statement	CTP	Lycoming	33 min
Aug 10, 6:49 PM EDT	Special Weather Statement	CTP	Clearfield	26 min
Aug 10, 7:02 PM EDT	Flash Flood Warning	CTP	Huntingdon, Juniata, Mifflin	3 hr
Aug 10, 7:06 PM EDT	Special Weather Statement	CTP	Huntingdon	24 min
Aug 10, 7:13 PM EDT	Special Weather Statement	CTP	Columbia	47 min
Aug 10, 7:29 PM EDT	Special Weather Statement	CTP	Cumberland	46 min
Aug 10, 7:58 PM EDT	Special Weather Statement	CTP	Centre	32 min

Nearby

Flash Flood Warnings in Pennsylvania, 2016 Every flash flood warning in 2016

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.