Alert archive / Pennsylvania / Flash Flood Warnings in 2003
Flash Flood Warning 13, NWS State College, PA
NWS State College, PA issued this flash flood warning at Jul 21, 2003, 9:58 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 counties it named.
The facts
- Issued
- Jul 21, 2003, 9:58 PM EDT (01:58 UTC)
- Expired
- Jul 22, 2003, 4:00 AM EDT
- In force
- 6 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
County McKean County, PA
The radar
The State College radar (KCCX), 109 km from the middle of the area, began a volume at 02:00 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
Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 2.0 hours before the alert went out and 125 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
- 49 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 615 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 44 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 220202 FFWCTP PAC083-220800- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 958 PM EDT MON JUL 21 2003 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A * FLASH FLOOD WARNING FOR... MCKEAN COUNTY IN NORTH CENTRAL PENNSYLVANIA * UNTIL 400 AM EDT. * AT 955 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA OF THUNDERSTORMS WITH VERY HEAVY RAINFALL MOVING INTO MCKEAN COUNTY FROM THE WEST. THESE SLOW MOVING THUNDERSTORMS ARE PRODUCING RAINFALL BETWEEN 1 AND 1.5 INCHES IN AN HOUR. THIS ADDITIONAL RAINFALL...COMBINED WITH RAIN EARLIER IN THE DAY...WILL CAUSE RAPID RISES ON STREAMS AND CREEKS. URBAN AREAS AND POOR DRAINAGE AREAS WILL ALSO EXPERIENCE SIGNIFICANT FLOODING AS THE THUNDERSTORMS MOVE OVERHEAD. 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. $$ LAT...LON 4197 7828 4164 7821 4166 7895 4198 7889
2 follow-up statements
000 WGUS71 KCTP 220439 FFSCTP PAC083-220830- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 1238 AM EDT TUE JUL 22 2003 ...A FLASH FLOOD WARNING CONTINUES FOR MCKEAN COUNTY UNTIL 4 AM... AT 1235 AM EDT...DOPPLER RADAR SHOWED THE HEAVY RAINS MOVING TO THE EAST AND OUT OF MCKEAN COUNTY. NO IMMEDIATE FLOODING PROBLEMS WERE BEING REPORTED TO COUNTY EMERGENCY OFFICIALS AT THIS TIME. HOWEVER...THE POSSIBILITY FOR FLOODING STILL EXISTS...AS THE RAINFALL TODAY WAS VERY HEAVY. THE FLASH FLOOD WARNING WILL BE ALLOWED TO CONTINUE THROUGH 4 AM. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO HIGHER GROUND. CAMPERS IN THE WARNED AREA MUST MOVE TO HIGHER GROUND IMMEDIATELY. $$ LAT...LON 4199 7892 4162 7897 4164 7822 4202 7822 DANGELO
000 WGUS71 KCTP 220554 FFSCTP PAC083-220900- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 153 AM EDT TUE JUL 22 2003 ...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR MCKEAN COUNTY HAS BEEN CANCELLED... THE HEAVY RAIN HAS ENDED OVER MCKEAN COUNTY. STREAMS AND CREEKS IN THE WARNED AREA WERE BEGINNING TO RECEDE...ENDING THE FLASH FLOOD THREAT. EVEN THOUGH STREAMS AND CREEKS ARE RECEDING...SOME ROADWAYS STILL MAY BE COVERED WITH WATER. MOTORISTS ARE ADVISED TO AVOID DRIVING THROUGH FLOODED ROADWAYS. $$ LAT...LON 4198 7898 4164 7895 4164 7822 4200 7819 DANGELO
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 8:28 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 62 min |
| Jul 21, 8:55 PM EDT | Flash Flood Warning | CTP | Warren | 6 hr |
| Jul 21, 11:19 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 26 min |
| Jul 21, 11:52 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 53 min |
| Jul 22, 3:23 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 52 min |
| Jul 22, 3:33 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 57 min |
| Jul 22, 3:50 PM EDT | Tornado Warning | CTP | Dauphin | 40 min |
| Jul 22, 4:24 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 66 min |
| Jul 22, 4:43 PM EDT | Severe Thunderstorm Warning | CTP | Cameron | 17 min |
| Jul 22, 5:06 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 69 min |
| Jul 22, 5:59 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 91 min |
| Jul 22, 6:32 PM EDT | Severe Thunderstorm Warning | CTP | York | 58 min |
| Jul 22, 6:43 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 47 min |
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.