Alert archive / Pennsylvania / Flash Flood Warnings in 2000
Flash Flood Warning 26, NWS State College, PA
NWS State College, PA issued this flash flood warning at Jul 31, 2000, 3:44 PM EDT for McKean 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
- Jul 31, 2000, 3:44 PM EDT (19:44 UTC)
- Expired
- Jul 31, 2000, 6:45 PM EDT
- In force
- 3 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 19:47 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 12:00Z, 7.7 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
- 922 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 840 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS51 KCTP 311950 FFWCTP PAC083-312245- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 344 PM EDT MON JUL 31 2000 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A * FLASH FLOOD WARNING FOR... MCKEAN COUNTY. * UNTIL 645 PM EDT. * AT 337 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL OVER NORTHWEST MCKEAN COUNTY. SEVERAL OTHER SLOW MOVING THUNDERSTORMS WERE ALSO DEVELOPING OVER OTHER PORTIONS OF THE COUNTY. SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING IN BRADFORD...MARSHBURG AND WESTLINE IN THE NEXT SEVERAL HOURS. 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. $$ GARTNER LAT-...LON 4179 7895 4167 7878 4249 7739 4281 7782
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS State College, PA wrote its last area forecast discussion before this flash flood warning went out at Jul 31, 1:50 PM EDT, 1 hour 54 minutes earlier.
Area forecast discussion, Jul 31, 1:50 PM EDT, 1 hour 54 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 150 PM EDT MON JUL 31 2000 CU FILLED IN FAST LATE THIS AM AS THE HI MSTR CONTENT OF THE LLVLS LWRD THE CONVCTV TEMP. RDR LIGHTING UP ATTM W/A LINE OF HEAVY RAINERS ALREADY ALONG THE SPINE OF THE ALLEGH FNT. THESE THINGS WILL JUST PERSIST IN THIS ORIENTATION AS THE VWP SHWS NO DIRECTIONAL SHEAR AND LTL SPEED SHEAR THRU ALL LYRS. FFA IS BEING SERIOUSLY CONSIDERED FOR TONIGHT - WL LIKELY GO FOR ALL OF FA DUE TO CURR CONDITIONS AND XPCTD EXPANSION OF RAIN THRU THE NIGHT. MAIN ACTION FOR NEXT FEW DAYS SEEMS TO BE TONIGHT. ALL MDL PROGS NOW BECMG MORE DEFINED ON A RELATIVE MINIMUM OF FORCING AND QPF DURING LAST HALF OF TUESDAY TO WED NOON. THIS APPEARS TO BE SOMETHING TO LATCH ONTO. BUT BEFORE THEN...THE HI MOISTURE AND MAINLY AFTN/EVEN CONVECTION WL LIKELY CONTINUE IN EARNEST. LOWER POPS IN ORDER FOR TUE NIGHT AND EVEN DAYTIME ON WED. XTNDD: THINGS LOOKING SLIGHTLY MORE OPTIMISTIC FOR SAT...BUT DRY WEEKENDS HV BEEN TOUGH TO COME BY LATELY. WL GO WITH PC...THOUGH AS THE UPR LOW SHUD BE FILLING AND LIFTING NORTH LATER IN THE WEEK. WORK ZNS BY 3 PM. .CTP...FFA FOR ALL OF FA TONIGHT. DANGELO
In the hours before
Special weather statement, Jul 31, 10:50 AM EDT, 4 hours 54 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-312000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 1050 AM EDT MON JUL 31 2000 ...HEAVY DOWNPOURS POSSIBLE AGAIN THIS AFTERNOON AND EVENING... VERY HUMID AIR IS IN PLACE OVER CENTRAL PENNSYLVANIA ONCE AGAIN TODAY. SHOWERS AND THUNDERSTORMS WILL DEVELOP DURING THE AFTERNOON. THE SHOWERS AND THUNDERSTORMS WILL BECOME MORE NUMEROUS LATE THIS AFTERNOON AND INTO THIS EVENING. THE POTENTIAL EXISTS FOR LOCALLY HEAVY DOWNPOURS...SOME OF WHICH MAY BE HEAVY ENOUGH TO CAUSE FLOODING. PLACES THAT RECEIVED HEAVY RAINS DURING THE LAST FEW DAYS WILL BE MORE SUSCEPTIBLE TO FLOODING. STAY TUNED TO THE LATEST FORECASTS AND POTENTIAL WATCHES OR WARNINGS FROM YOUR NATIONAL WEATHER SERVICE. DANGELO/SEILHAMER
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 8:25 PM EDT | Flash Flood Warning | CTP | Columbia | 3 hr |
| Jul 31, 1:50 AM EDT | Flash Flood Warning | CTP | Columbia | 3 hr |
| Jul 31, 1:58 PM EDT | Flash Flood Warning | CTP | Clearfield | 4 hr |
| Jul 31, 2:08 PM EDT | Flash Flood Warning | CTP | Somerset | 3 hr |
| Jul 31, 4:40 PM EDT | Flash Flood Warning | CTP | Elk | 3 hr |
| Jul 31, 6:45 PM EDT | Flash Flood Warning | CTP | McKean | 2 hr |
| Jul 31, 7:40 PM EDT | Flash Flood Warning | CTP | Clearfield | 110 min |
Nearby
Flash Flood Warnings in Pennsylvania, 2000Every flash flood warning in 2000
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.