Alert archive / Pennsylvania / Flash Flood Warnings in 2003
Flash Flood Warning 1, NWS State College, PA
NWS State College, PA issued this flash flood warning at Mar 9, 2003, 5:29 PM EST 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
- Mar 9, 2003, 5:29 PM EST (22:29 UTC)
- Expired
- Mar 9, 2003, 8:30 PM EST
- 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 12:00Z, 10.5 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1611 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- -55 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS51 KCTP 092236 FFWCTP PAC071-100130- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 529 PM EST SUN MAR 9 2003 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A * FLASH FLOOD WARNING FOR... LANCASTER COUNTY IN SOUTH CENTRAL PENNSYLVANIA * UNTIL 830 PM EST. * AT 527 PM EST...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED AN ICE JAM ON THE LITTLE CHICKIES CREEK. NEAR MOUNT JOY...THE WATER HAS OVERFLOWED ITS BANKS BUT WAS NOT AFFECTING ANY ROADWAYS AS OF 525 PM. AN AUTOMATED GAGE ON THE LITTLE CHICKIES CREEK CONTINUES TO SHOW WATER LEVELS RISING BEHIND THE ICE JAM...AND CONTINUED RISES ARE EXPECTED IN THE NEXT HOUR OR TWO. AN ICE JAM RESTRICTS WATER FLOW. THE WATER BEHIND THE ICE JAM WILL BE VERY SLOW TO RECEED AND MAY CONTINUE TO ACCUMULATE. BE PREPARED TO MOVE TO HIGHER GROUND TO AVOID THE FLOOD WATER. 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. $$ LAT...LON 4015 7602 3997 7608 3979 7621 4014 7643 BUDD/DEVOIR
1 follow-up statement
000 WGUS71 KCTP 100135 FFSCTP PAC071-100330- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 827 PM EST SUN MAR 9 2003 ...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR LANCASTER COUNTY HAS EXPIRED... AT 823 PM EST...LOCAL LAW ENFORCEMENT OFFICIALS CONTINUED TO REPORT THE LITTLE CHICKIES CREEK OVER ITS BANKS NEAR MOUNT JOY. THE LITTLE CHICKIES CREEK GAGE AT MOUNT JOY HAS INDICATED NEARLY STEADY WATER LEVELS OVER THE PAST 3 HOURS. WITH TEMPERATURES HAVING DROPPED BELOW FREEZING...WATER LEVELS SHOULD GRADUALLY RECEDE OVERNIGHT. HIGH WATER LEVELS THIS EVENING APPEAR TO HAVE BEEN CAUSED BY A COMBINATION OF SNOW MELT FROM THE DAYLIGHT HOURS SUNDAY AND POSSIBLE ICE JAMMING ACTION ALONG THE CREEK. WHILE THE POTENTIAL FOR OVERNIGHT FLOODING HAS DECREASED... PERSONS NEAR THE LITTLE CHICKIES CREEK SHOULD CONTINUE TO BE AWARE OF THE ELEVATED WATER LEVELS AND MINOR THREAT OF FLOODING AND BE PREPARED TO MOVE TO HIGHER GROUND. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. IF YOU LIVE BELOW THE LOCATION OF THE ICE JAM...BE AWARE THAT THE JAM COULD GIVE WAY AND SEND LARGE QUANTITIES OF WATER DOWNSTREAM. THIS COULD CAUSE RAPID FLOODING OF THE AREA BELOW THE JAM. $$ DEVOIR/BUDD
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.