Alert archive / Pennsylvania / Flash Flood Warnings in 2000
Flash Flood Warning 48, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this flash flood warning at Aug 6, 2000, 8:19 AM EDT for 6 counties in Pennsylvania; Brooke County, Hancock County, Ohio County, West Virginia. 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
- Aug 6, 2000, 8:19 AM EDT (12:19 UTC)
- Expired
- Aug 6, 2000, 11:00 AM EDT
- In force
- 3 hr
- Issued by
- NWS Pittsburgh, PA
- Area
- Whole counties
Counties Allegheny County, PA, Beaver County, PA, Fayette County, PA, Greene County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Hancock County, WV, Ohio County, WV
The radar
The Pittsburgh radar (KPBZ), 31 km from the middle of the area, began a volume at 12:22 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
Washington/Dulle, VA (KIAD), launched 12:00Z, 0.3 hours before the alert went out and 280 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
- 841 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 199 m²/s²
- 0-3 km storm-relative helicity
- 280 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 KPBZ 061221 FFWPBZ PAC003-007-051-059-125-129-WVC009-029-069-061515- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE PITTSBURGH PA 819 AM EDT SUN AUG 6 2000 THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A * FLASH FLOOD WARNING FOR... ALLEGHENY COUNTY IN PENNSYLVANIA BEAVER COUNTY IN PENNSYLVANIA FAYETTE COUNTY IN PENNSYLVANIA GREENE COUNTY IN PENNSYLVANIA WASHINGTON COUNTY IN PENNSYLVANIA WESTMORELAND COUNTY IN PENNSYLVANIA BROOKE COUNTY IN WEST VIRGINIA HANCOCK COUNTY IN WEST VIRGINIA OHIO COUNTY IN WEST VIRGINIA * UNTIL 1100 AM EDT * AT 815 AM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED HEAVY RAINS FALLING ACROSS THE WARNING AREA. REPORTS OF OVER 1.50 INCHES OF RAIN HAS BEEN REPORTED IN LESS THAN 90 MINUTES IN SOME AREAS ALREADY. THE HEAVY RAIN AND THUNDERSTORMS WILL CONTINUE TO TRAIN ACROSS THE WARNING AREA THROUGH THE MORNING. * OTHER LOCATIONS IN THE WARNING INCLUDE...WEST LIBERTY...WEIRTON... PITTSBURGH...GREENSBURG...WAYNESBURG...UNIONTOWN...BEAVER FALLS...CHESTER...BURGETTSTOWN. <<CALL TO ACTION>>DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND.
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 Pittsburgh, PA wrote its last area forecast discussion before this flash flood warning went out at Aug 6, 2:42 AM EDT, 5 hours 37 minutes earlier.
Area forecast discussion, Aug 6, 2:42 AM EDT, 5 hours 37 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 242 AM EDT AUG 6 2000 PW GOES TO NEARLY 2 INCHES THIS AFTN. A FF WATCH MIGHT BE NEEDED. WE ALSO HAVE 1500-2000 CAPE, LI OF -3 TO -6 AT MAX HEATG TIME. ITS EASY TO SEE POTENTIAL OF SVR WEATHER. NEXT SHIFT CAN RE-ASSESS NEED FOR FF WATCH. PCPN IS A BIT AHEAD OF MESOETA MODEL, BUT ABT IN LINE WITH RUN OF 24 HR AGO. ONCE AGAIN, NGM TAKES MORE PRECIP TOWARD THE S, INTO WV. ETA PUTS BULK OF PCPN A BIT FURTHER N, IN THE ZZV-HLG AREA. WL MENTION HEAVY RAIN TDA. LO LVL JET TO NEARLY 40KTS THIS AFTN. WL HAVE TO MENTION SFC WIND OF 15-25 KT, WITH HIER GUSTS IN TSTMS. HELICITY GOES TO 300 BY 12Z TDA, AND THEN TO 400 AT 15Z, THEN IT DECREASES BY 18Z. DAMAGING WIND LOOKS LIKE A SURE BET TDA. LOOKS LIKE A BREAK IN THE EARLY PART OF TONIGHT, THEN MORE RAIN COMES INTO THE N FIRST, THEN INTO THE S BY MON MRNG. WL FOLLOW NGM TEMPS. IF ANOTHER OFFICE IS ENTERTAINING A FF WATCH NOW, I WOULD BE WILLING TO ISSUE SOMETHING ADJACENT TO THEIRS. .PBZ...NONE.
In the hours before
Special weather statement, Aug 6, 4:20 AM EDT, 3 hours 59 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 420 AM EDT SUN AUG 6 2000 MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029>032-WVZ001>004-012-021>023-041-061500- ALLEGHENY-ARMSTRONG-BEAVER-BELMONT-BROOKE-BUTLER-CARROLL-CLARION- COLUMBIANA-COSHOCTON-FAYETTE-FOREST-GARRETT-GREENE-GUERNSEY-HANCOCK- HARRISON-INDIANA-JEFFERSON-LAWRENCE-MARION-MARSHALL-MERCER-MONONGALIA- MONROE-MUSKINGUM-NOBLE-OHIO-PRESTON-TUCKER-TUSCARAWAS-VENANGO- WASHINGTON-WESTMORELAND-WETZEL- ...THUNDERSTORMS WITH GUSTY WINDS AND HEAVY RAIN POSSIBLE... THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY AND EARLY TONIGHT. THE PRIMARY THREAT IS FOR STRONG...DAMAGING WIND...AND HEAVY DOWNPOURS. A FLASH FLOOD WATCH MAY BE NEEDED LATER TODAY. AS A WARM FRONT APPROACHES FROM THE SOUTHWEST, THE HUMIDITY WILL INCREASE. SHOWERS AND A FEW THUNDERSTORMS WILL OCCUR EARLY THIS MORNING...FOLLOWED BY A BREAK IN THE RAIN...THEN ANOTHER PERIOD OF THUNDERSTORMS THIS AFTERNOON AND EARLY TONIGHT. SKYWARN ACTIVATION MAY BE NEEDED.
Special weather statement, Aug 6, 8:06 AM EDT, 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 806 AM EDT SUN AUG 6 2000 MDZ001-PAZ014-020>023-029>032-WVZ001>004-012-021>023-041-061605- ALLEGHENY PA-ARMSTRONG PA-BEAVER PA-BROOKE WV-BUTLER PA-FAYETTE PA- GARRETT MD-GREENE PA-HANCOCK WV-INDIANA PA-MARION WV-MARSHALL WV- MONONGALIA WV-OHIO WV-PRESTON WV-TUCKER WV-WASHINGTON PA- WESTMORELAND PA-WETZEL WV- 810 AM EDT SUN AUG 6 2000 ...MORNING THUNDERSTORMS... SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS THE REGION THROUGH THE REMAINDER OF THE MORNING. THESES STORMS WILL CONTAIN LOCALY HEAVY RAINFALL THAT WILL PRODUCE IN EXCESS OF ONE INCH ALONG WITH PONDING OF WATER ON ROADWAYS AND POOR DRAINAGE AREAS. EXPECT FREQUENT CLOUD TO GROUND LIGHTNING STRIKES. WINDS MAY GUST OVER 35 MPH...TREES MAY TOPPLE IN SOME LOCALTIES DUE TO SATURATED GROUNDS. BE ALERT TO RAPID CHANGING WEATHER CONDITIONS THIS MORNING IF YOU ARE TRAVELLING...POOR VISIBILITIES WILL OCCUR ALSO.
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 10:47 AM EDT | Flash Flood Warning | PBZ | Fayette, Greene | 3 hr |
| Aug 6, 10:59 AM EDT | Flash Flood Warning | PBZ | Westmoreland | 3 hr |
| Aug 6, 11:50 AM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Aug 6, 1:09 PM EDT | Flash Flood Warning | PBZ | Allegheny | 111 min |
| Aug 6, 1:42 PM EDT | Flash Flood Warning | PBZ | Fayette, Greene, Westmoreland | 4 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2000Flash Flood Warnings in West Virginia, 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.