Alert archive / Pennsylvania / Flash Flood Warnings in 2003
Flash Flood Warning 30, NWS State College, PA
NWS State College, PA issued this flash flood warning at Aug 13, 2003, 5:36 PM EDT for Dauphin County, Pennsylvania. It was in force for 114 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 13, 2003, 5:36 PM EDT (21:36 UTC)
- Expired
- Aug 13, 2003, 7:30 PM EDT
- In force
- 114 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Dauphin County, PA
The radar
The State College radar (KCCX), 118 km from the middle of the area, began a volume at 21:39 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
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.6 hours before the alert went out and 120 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
- 1101 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 827 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS51 KCTP 132143 FFWCTP PAC043-132330- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 536 PM EDT WED AUG 13 2003 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A * FLASH FLOOD WARNING FOR... DAUPHIN COUNTY IN SOUTH CENTRAL PENNSYLVANIA * UNTIL 730 PM EDT. * AT 533 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A NEARLY STATIONARY THUNDERSTORM WITH VERY HEAVY RAINFALL 2 MILES SOUTHEAST OF HUMMELSTOWN...OR 3 MILES SOUTHWEST OF HERSHEY. THE SLOW MOVING THUNDERSTORM CLUSTER WAS DRIFTING SLOWLY TO THE WEST AND HAS ALREADY PRODUCED BETWEEN ONE AND TWO AND A HALF INCHES OF RAIN IN LESS THAN AN HOUR TO THE SOUTHWEST OF HERSHEY. THE STORM WILL CONTINUE TO PRODUCE HEAVY RAIN BETWEEN HERSHEY AND CLIFTON THROUGH 615 PM. RUNOFF FROM THE EXCESSIVE RAINFALL IN THE WARNED AREA WILL CAUSE FLASH FLOODING NORTH OF THE PENNSYLVANIA TURNPIKE BETWEEN HERSHEY AND CLIFTON...NEAR AND ALONG ROUTE 322. THIS IS A DANGEROUS SITUATION NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO HIGHER GROUND. SMALL CREEKS AND STREAMS WILL RAPIDLY FLOOD...POSSIBLY WASHING OUT ROADS AND FLOODING NEARBY LOW AREAS. $$ LAT...LON 4032 7665 4021 7660 4016 7674 4030 7682 DEVOIR/MARTIN
2 follow-up statements
000 WGUS71 KCTP 132226 FFSCTP PAC043-132345- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 625 PM EDT WED AUG 13 2003 ...A FLASH FLOOD WARNING CONTINUES FOR DAUPHIN COUNTY... AT 620 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A CLUSTER OF THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL NEAR MIDDLETOWN. THE STORM WILL CONTINUE TO DRIFT WESTWARD...AND SLOWLY WEAKEN. HOWEVER...THE THREAT OF FLASH FLOODING WILL CONTINUE...GIVEN RUNOFF FROM THE STORM SO FAR. ESTIMATED RADAR RAINFALL SO FAR HAS BE BETWEEN 3 AND 4 INCHES OF RAIN. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO HIGHER GROUND. $$ LAT...LON 4033 7685 4019 7668 4028 7666 4036 7675 MARTIN
000 WGUS71 KCTP 132300 FFSCTP PAC043-140000- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 656 PM EDT WED AUG 13 2003 ...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR DAUPHIN COUNTY HAS BEEN CANCELLED... THE HEAVY RAIN HAS ENDED OVER THE WARNED AREA. AT THE CURRENT TIME... THERE ARE NO REPORTS OF FLOODING. HOWEVER...AREA STREAMS AND CREEKS MAY REMAIN ON THE HIGH SIDE AND RESIDENTS SHOULD USE CAUTION AROUND AREA WATERWAYS THIS EVENING. $$ LAT...LON 4031 7687 4018 7672 4024 7668 4040 7669 MARTIN
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 10:03 PM EDT | Flash Flood Warning | CTP | McKean | 117 min |
| Aug 13, 4:24 PM EDT | Flash Flood Warning | CTP | Schuylkill | 2 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; radar from the NEXRAD Level II archive.