Alert archive / Pennsylvania / Flash Flood Warnings in 2014

Flash Flood Warning 9, NWS State College, PA

June 13, 2014Lancaster County, Lebanon County, Pennsylvania

NWS State College, PA issued this flash flood warning at Jun 13, 2014, 12:52 PM EDT for Lancaster County, Lebanon County, Pennsylvania. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 13, 2014, 12:52 PM EDT (16:52 UTC)
Expired: Jun 13, 2014, 3:45 PM EDT
In force: 3 hr
Issued by: NWS State College, PA
Area: Storm-based polygon
Flood severity: None

Counties Lancaster County, PA, Lebanon County, PA

The radar

The State College radar (KCCX), 156 km from the middle of the area, began a volume at 16:54 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 12:00Z, 4.9 hours before the alert went out and 167 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: 523 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 527 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 36 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

935 
WGUS51 KCTP 131652
FFWCTP
PAC071-075-131945-
/O.NEW.KCTP.FF.W.0009.140613T1652Z-140613T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1252 PM EDT FRI JUN 13 2014

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN LEBANON COUNTY IN SOUTH CENTRAL PENNSYLVANIA...
  NORTHWESTERN LANCASTER COUNTY IN SOUTH CENTRAL PENNSYLVANIA...

* UNTIL 345 PM EDT
    
* AT 1250 PM EDT...DOPPLER RADAR INDICATES THAT AN AREA OF HEAVY 
  SHOWERS AND THUNDERSTORMS CAPABLE OF CAUSING FLASH FLOODING IS 
  AFFECTING THE REGION FROM EASTERN LEBANON COUNTY DOWN INTO 
  NORTHERN LANCASTER COUNTY. AS MUCH AS TWO INCHES OF RAIN HAS  
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LANCASTER...LEBANON...EPHRATA...ELIZABETHTOWN...LITITZ...MOUNT
  JOY...MANHEIM...ANNVILLE...EAST PETERSBURG...CORNWALL...AKRON...
  MYERSTOWN...SALUNGA-LANDISVILLE...DENVER...ROTHSVILLE...PLEASANT
  HILL...SAND HILL...NEWMANSTOWN...LEBANON SOUTH AND CLEONA.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 4005 7634 4015 7662 4019 7659 4020 7657
      4022 7658 4048 7642 4037 7624 4035 7619
      4027 7608

$$

LA CORTE/GRUMM

1 follow-up statement

334 
WGUS71 KCTP 131828
FFSCTP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
228 PM EDT FRI JUN 13 2014

PAC071-075-131837-
/O.CAN.KCTP.FF.W.0009.000000T0000Z-140613T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LEBANON PA-LANCASTER PA-
228 PM EDT FRI JUN 13 2014

...THE FLASH FLOOD WARNING FOR EASTERN LEBANON AND NORTHWESTERN
LANCASTER COUNTIES IS CANCELLED...

THE HEAVY RAIN HAS TAPERED OFF TO JUST SCATTERED SHOWERS...WITH ONLY 
MINOR PROBLEMS HAVING BEEN REPORTED. THE THREAT FOR SIGNIFICANT  
FLOODING IS NO LONGER ANTICIPATED.

LAT...LON 4005 7634 4015 7662 4019 7659 4020 7657
      4022 7658 4048 7642 4037 7624 4035 7619
      4027 7608

$$

LA CORTE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 8:32 PM EDT	Special Weather Statement	CTP	Fulton	28 min
Jun 12, 8:46 PM EDT	Special Weather Statement	CTP	Elk, McKean	59 min
Jun 12, 9:03 PM EDT	Areal Flood Warning	CTP	Bedford, Somerset	3 hr
Jun 12, 9:40 PM EDT	Areal Flood Advisory	CTP	McKean, Warren	3 hr
Jun 12, 10:20 PM EDT	Flash Flood Warning	CTP	McKean, Warren	6 hr
Jun 13, 12:00 AM EDT	Areal Flood Advisory	CTP	Adams, Cumberland	3 hr
Jun 13, 1:27 AM EDT	Flash Flood Warning	CTP	Cumberland	3 hr
Jun 13, 2:15 AM EDT	Areal Flood Advisory	CTP	Juniata, Perry	2 hr
Jun 13, 4:37 AM EDT	Areal Flood Advisory	CTP	Lancaster, Lebanon	113 min
Jun 13, 4:47 AM EDT	Areal Flood Advisory	CTP	Juniata, Snyder, Union	118 min
Jun 13, 11:48 AM EDT	Flash Flood Watch	CTP	Adams, Columbia, Cumberland, Dauphin, Franklin, Juniata and 11 more	10 hr
Jun 13, 12:06 PM EDT	Areal Flood Advisory	CTP	Adams, Cumberland, Dauphin, Lancaster, Lebanon, Perry and 1 more	3 hr
Jun 13, 12:08 PM EDT	Special Weather Statement	CTP	Lebanon	67 min
Jun 13, 12:14 PM EDT	Special Weather Statement	CTP	York	46 min
Jun 13, 12:18 PM EDT	Flash Flood Warning	CTP	Adams, Cumberland, Dauphin, Perry, York	3 hr
Jun 13, 12:25 PM EDT	Special Weather Statement	CTP	Lancaster	35 min
Jun 13, 1:30 PM EDT	Areal Flood Advisory	CTP	Elk, McKean, Warren	3 hr
Jun 13, 3:27 PM EDT	Special Weather Statement	CTP	Cambria, Cameron, Clearfield	33 min
Jun 13, 4:42 PM EDT	Special Weather Statement	CTP	York	33 min
Jun 13, 5:08 PM EDT	River Flood Warning	CTP	Cumberland, York	19 hr
Jun 13, 6:12 PM EDT	Special Weather Statement	CTP	Lancaster	33 min
Jun 13, 7:33 PM EDT	Special Weather Statement	CTP	York	27 min

Nearby

Flash Flood Warnings in Pennsylvania, 2014 Every flash flood warning in 2014

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.