Alert archive / Pennsylvania / Flash Flood Warnings in 2003
Flash Flood Warning 34, NWS State College, PA
NWS State College, PA issued this flash flood warning at Sep 1, 2003, 10:05 PM EDT for Lancaster 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 counties it named.
The facts
- Issued
- Sep 1, 2003, 10:05 PM EDT (02:05 UTC)
- Expired
- Sep 2, 2003, 1:00 AM EDT
- In force
- 3 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Lancaster County, PA
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 2.1 hours before the alert went out and 157 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
- 1657 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 847 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.6
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS51 KCTP 020211
FFWCTP
PAC071-020500-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1005 PM EDT MON SEP 1 2003
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A
* FLASH FLOOD WARNING FOR...
LANCASTER COUNTY IN SOUTH CENTRAL PENNSYLVANIA
* UNTIL 100 AM EDT.
* AT 1000 PM...DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY
HEAVY RAINFALL ACROSS MOST OF LANCASTER COUNTY.
SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
FLOODING. AS OF 10 PM...ONLY MINOR FLOODING HAS BEEN REPORTED...BUT
THE ADDITIONAL RAINFALL WHICH WILL CONTINUE THROUGH 11 PM...WILL
ELEVATE THE FLOODING PROBLEMS. SMALL STREAMS AND CREEKS WILL RISE
QUICKLY OUT OF THEIR BANKS.
SPOTTER REPORTS INDICATE THAT 2.25 INCHES OF RAIN HAS FALLEN IN THE
LITITZ AREA...WHILE 1 INCH HAS FALLEN IN THE MOUNT JOY AREA BETWEEN
930 PM AND 10 PM.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO
HIGHER GROUND.
$$
LAT...LON 4016 7593 3971 7617 4011 7668 4023 7647
4033 7617
&1 follow-up statement
000
WGUS71 KCTP 020346
FFSCTP
PAC071-020500-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1135 PM EDT MON SEP 1 2003
...A FLASH FLOOD WARNING CONTINUES FOR LANCASTER COUNTY UNTIL
1 AM ...
AT 1132 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF HEAVY SHOWERS AND A FEW THUNDERSTORMS MOVING EAST INTO
LANCASTER COUNTY. ADDITIONAL RAINFALL AMOUNTS FROM THIS AREA OF
SHOWERS WILL AMOUNT TO AROUND ONE HALF INCH.
COUNTY EMERGENCY MANAGEMENT PERSONAL REPORTED THAT LOCALIZED
FLOODING OF LOW LYING AREAS AND ROADS HAS DIMINISHED DURING THE PAST
HOUR. THE ADDITIONAL RAINFALL WILL KEEP STREAMS RUNNING HIGH...AND
CAUSE PONDING OF WATER ON ROADS AND LOW LYING AREAS.
ANOTHER AREA OF HEAVY SHOWERS AND THUNDERSTORMS...CURRENTLY ACROSS
THE LAUREL HIGHLANDS OF SOUTHWESTERN PENNSYLVANIA...WILL LIKELY MOVE
ACROSS LANCASTER COUNTY BETWEEN 4 AND 7 AM TUESDAY MORNING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO
HIGHER GROUND.
$$
LAT...LON 4015 7668 3974 7622 3974 7609 4012 7590
4033 7610
LAMBERT/JUNGThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 9:40 PM EDT | Flash Flood Warning | CTP | Franklin | 3 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2003Every flash flood warning in 2003
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.