Alert archive / Pennsylvania / Flash Flood Warnings in 2016

Flash Flood Warning 1, NWS State College, PA

June 2, 2016Clearfield County, Pennsylvania

NWS State College, PA issued this flash flood warning at Jun 2, 2016, 8:38 PM EDT for Clearfield 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
Jun 2, 2016, 8:38 PM EDT (00:38 UTC)
Expired
Jun 2, 2016, 11:45 PM EDT
In force
3 hr
Issued by
NWS State College, PA
Area
Storm-based polygon
Flood severity
None

County Clearfield County, PA

The radar

The State College radar (KCCX), 34 km from the middle of the area, began a volume at 00:41 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

TimeReportWhereRemark
Jun 2, 8:45 PM EDTFLASH FLOODClearfield, PANUMEROUS WATER RESCUES AND EVACUATIONS IN CLEARFIELD. ROUTE 322 AND 879 FLOODED AND IMPASSABLE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 00:00Z, 0.6 hours before the alert went out and 161 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-pSkew-T log-p diagram, Pittsburgh, PA at 00:00Z on 2016-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 392 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 00:00Z on 2016-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
392 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
1185 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.3

Open this sounding in Storm Lab

The text

As transmitted.

141 
WGUS51 KCTP 030038
FFWCTP
PAC033-030345-
/O.NEW.KCTP.FF.W.0001.160603T0038Z-160603T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
838 PM EDT THU JUN 2 2016

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL CLEARFIELD COUNTY IN CENTRAL PENNSYLVANIA...

* UNTIL 1145 PM EDT

* AT 837 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED.
  

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CLEARFIELD...WOODLAND...PLYMPTONVILLE...LECONTES MILLS...HYDE AND
  CLEARFIELD-LAWRENCE AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 4109 7825 4096 7831 4100 7852 4108 7855

$$

KF
2 follow-up statements
077 
WGUS71 KCTP 030051
FFSCTP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
851 PM EDT THU JUN 2 2016

PAC033-030345-
/O.CON.KCTP.FF.W.0001.000000T0000Z-160603T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLEARFIELD PA-
851 PM EDT THU JUN 2 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT FOR
CENTRAL CLEARFIELD COUNTY...

AT 846 PM EDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING FROM
STATIONARY THUNDERSTORMS IN CLEARFIELD! 4.5 INCHES OF RAIN HAS BEEN
RECORDED AT THE AIRPORT ON THE NORTH SIDE OF TOWN...WITH AROUND 3
INCHES IN THE DOWNTOWN AREA. THUNDERSTORMS WILL CONTINUE TO AFFECT
THE AREA THROUGH LATE EVENING WITH OVER AN INCH OF ADDITIONAL RAIN
IN SOME SPOTS.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
CLEARFIELD...WOODLAND...PLYMPTONVILLE...LECONTES MILLS...HYDE AND
CLEARFIELD-LAWRENCE AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 4109 7825 4096 7831 4100 7852 4108 7855

$$

KF
165 
WGUS71 KCTP 030138
FFSCTP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
938 PM EDT THU JUN 2 2016

PAC033-030345-
/O.CON.KCTP.FF.W.0001.000000T0000Z-160603T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLEARFIELD PA-
938 PM EDT THU JUN 2 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT FOR
CENTRAL CLEARFIELD COUNTY...

AT 935 PM EDT...LOCAL LAW ENFORCEMENT CONTINUES TO REPORT FLASH
FLOODING IN THE CLEARFIELD AREA! OVER 5 INCHES OF RAIN HAS FALLEN
EARLIER THIS EVENING JUST NORTH OF CLEARFIELD AND OVER 3 INCHES
DOWNTOWN. ALTHOUGH THE RAIN HAS ENDED, FLASH FLOODING
CONTINUES! 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
CLEARFIELD...WOODLAND...PLYMPTONVILLE...LECONTES MILLS...HYDE AND
CLEARFIELD-LAWRENCE AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 4109 7825 4096 7831 4100 7852 4108 7855

$$

KF

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 8:08 PM EDTAreal Flood AdvisoryCTPClearfield52 min
Jun 2, 10:51 PM EDTAreal Flood AdvisoryCTPElk114 min
Jun 2, 11:52 PM EDTAreal Flood AdvisoryCTPClearfield3 hr
Jun 3, 1:15 AM EDTAreal Flood AdvisoryCTPElk3 hr
Jun 3, 12:59 PM EDTSpecial Weather StatementCTPAdams, Franklin, York46 min
Jun 3, 1:59 PM EDTAreal Flood AdvisoryCTPAdams3 hr

Nearby

Flash Flood Warnings in Pennsylvania, 2016Every 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.