Alert archive / Pennsylvania / Flood Watches in 2013

Flood Watch 6, NWS State College, PA

October 10, 201313 counties in Pennsylvania

NWS State College, PA issued this flood watch at Oct 10, 2013, 11:04 PM EDT for 13 counties in Pennsylvania. It was in force for 21 hr.

The area

The counties it named.

The facts

Issued
Oct 10, 2013, 11:04 PM EDT (03:04 UTC)
Expired
Oct 11, 2013, 8:00 PM EDT
In force
21 hr
Issued by
NWS State College, PA
Flood severity
None

Counties Adams County, PA, Cumberland County, PA, Dauphin County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Juniata County, PA, Lancaster County, PA, Lebanon County, PA, Mifflin County, PA, Perry County, PA, Snyder County, PA, York County, PA

The radar

The State College radar (KCCX), 99 km from the middle of the area, began a volume at 03:08 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 00:00Z, 3.1 hours before the alert went out and 146 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, Washington/Dulle, VA at 00:00Z on 2013-10-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 2013-10-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 350 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
477 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
350 m²/s²
0-3 km storm-relative helicity
543 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS State College, PA wrote its last area forecast discussion before this flood watch went out at Oct 10, 10:43 PM EDT, 21 minutes earlier.

Area forecast discussion, Oct 10, 10:43 PM EDT, 21 minutes before
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Hazardous weather outlook, Oct 10, 8:45 PM EDT, 2 hours 19 minutes before
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In the hours before

Local storm report, Oct 10, 10:21 PM EDT, 43 minutes before
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Local storm report, Oct 10, 10:44 PM EDT, 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1044 PM EDT THU OCT 10 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1015 PM     FLOOD            MIDDLETOWN              40.20N  76.73W
10/10/2013                   DAUPHIN            PA   SOCIAL MEDIA

            BOROUGH OFFICIAL REPORTED LOTS OF STANDING WATER AND
            LOW ROADS ARE FLOODED

&&

EVENT NUMBER CTP1300454

MACH
Local storm report, Oct 10, 11:00 PM EDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1100 PM EDT THU OCT 10 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1054 PM     FLOOD            SPRING GROVE            39.88N  76.86W
10/10/2013                   YORK               PA   PUBLIC

            STREET... FIELDS AND SMALL STREAM FLOODING CONTINUES

&&

EVENT NUMBER CTP1300455

MACH

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 10, 8:03 PM EDTAreal Flood AdvisoryCTPColumbia, Montour, Northumberland, Schuylkill3 hr
Oct 10, 9:04 PM EDTAreal Flood AdvisoryCTPColumbia, Lycoming, Sullivan3 hr
Oct 10, 9:26 PM EDTAreal Flood WarningCTPCumberland, Dauphin, Franklin, Lebanon, Perry36 hr
Oct 10, 10:54 PM EDTAreal Flood AdvisoryCTPCentre, Clinton, Columbia, Huntingdon, Juniata, Lycoming and 7 more3 hr
Oct 11, 1:37 AM EDTAreal Flood AdvisoryCTPBedford, Centre, Clinton, Columbia, Fulton, Huntingdon and 9 more14 hr
Oct 11, 4:34 AM EDTRiver Flood WarningCTPCumberland, York37 hr
Oct 11, 6:52 AM EDTRiver Flood WarningCTPDauphin, Lebanon24 hr
Oct 11, 7:11 AM EDTRiver Flood WarningCTPDauphin8 hr
Oct 11, 7:11 AM EDTRiver Flood WarningCTPDauphin, Lebanon, Schuylkill8 hr
Oct 11, 10:06 AM EDTRiver Flood WarningCTPCumberland47 hr
Oct 11, 3:30 PM EDTAreal Flood AdvisoryCTPBedford, Blair, Centre, Columbia, Fulton, Huntingdon and 7 more4 hr
Oct 11, 5:50 PM EDTRiver Flood WarningCTPLancaster, York6 hr

Nearby

Flood Watches in Pennsylvania, 2013Every flood watch in 2013

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.