Alert archive / Pennsylvania / Flash Flood Warnings in 2004
Flash Flood Warning 39, NWS State College, PA
NWS State College, PA issued this flash flood warning at Aug 10, 2004, 9:06 PM EDT for McKean County, Pennsylvania. It was in force for 6 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
- Aug 10, 2004, 9:06 PM EDT (01:06 UTC)
- Expired
- Aug 11, 2004, 3:00 AM EDT
- In force
- 6 hr
- Issued by
- NWS State College, PA
- Area
- Counties, with a storm outline in the text
County McKean County, PA
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 1.1 hours before the alert went out and 119 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
- 169 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 1068 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS51 KCTP 110109 FFWCTP PAC083-110700- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 906 PM EDT TUE AUG 10 2004 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A * FLASH FLOOD WARNING FOR... MCKEAN COUNTY IN NORTH CENTRAL PENNSYLVANIA * UNTIL 300 AM EDT. * AT 902 PM EDT...EMERGENCY MANAGEMENT OFFICIALS REPORTED VERY HEAVY RAINFALL CONTINUING OVER NORTHERN MCKEAN COUNTY. SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING IN AREAS SUCH AS LEWIS RUN AND DEREK CITY. DOPPLER RADAR ESTIMATES THAT BETWEEN 2 AND 3 INCHES OF RAIN HAS FALLEN NORTH AND WEST OF LEWIS RUN AND MARSHBURG. 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. PLEASE REPORT FLOODING...HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. LAT...LON 4176 7897 4194 7892 4201 7822 4185 7823 $$ LA CORTE
1 follow-up statement
000 WGUS71 KCTP 110200 FFSCTP PAC083-110800- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 954 PM EDT TUE AUG 10 2004 ...A FLASH FLOOD WARNING CONTINUES FOR MCKEAN COUNTY UNTIL 3 AM EDT... AT 949 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A NEW CLUSTER OF SHOWERS AND THUNDERSTORMS PRODUCING VERY HEAVY RAIN...MOVING OUT OF EASTERN WARREN COUNTY INTO WESTERN MCKEAN COUNTY. THE THUNDERSTORMS AND HEAVY RAIN WILL CONTINUE TO MOVE OVER THE WARNING AREA THROUGH LATE EVENING. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING IN AND NEAR LUDLOW...MARSHBURG AND LEWIS RUN. EARLIER THIS EVENING...EMERGENCY MANAGEMENT OFFICIALS REPORTED STREET FLOODING IN DEREK CITY. DOPPLER RADAR ESTIMATES THAT BETWEEN 2 AND 3 INCHES OF RAIN HAS FALLEN JUST NORTH OF THE AREA FROM MARSHBURG TO LEWIS RUN. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO HIGHER GROUND. $$ LA CORTE
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 8:05 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 40 min |
| Aug 10, 8:43 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 32 min |
| Aug 10, 8:51 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 54 min |
| Aug 11, 2:28 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 62 min |
| Aug 11, 2:52 PM EDT | Tornado Warning | CTP | Lancaster | 38 min |
| Aug 11, 4:29 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 61 min |
| Aug 11, 4:31 PM EDT | Flash Flood Warning | CTP | Lancaster | 6 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2004Every flash flood warning in 2004
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.