Alert archive / Pennsylvania / Areal Flood Advisories in 2011
Areal Flood Advisory 21, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this areal flood advisory at Jun 20, 2011, 2:31 AM EDT for Fayette County, Pennsylvania. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 20, 2011, 2:31 AM EDT (06:31 UTC)
- Expired
- Jun 20, 2011, 5:30 AM EDT
- In force
- 3 hr
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
- Flood severity
- None
County Fayette County, PA
The radar
The Pittsburgh radar (KPBZ), 84 km from the middle of the area, began a volume at 06:31 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
Pittsburgh, PA (KPIT), launched 00:00Z, 6.5 hours before the alert went out and 67 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
- 539 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 1037 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood advisory 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 areal flood advisory went out at Jun 20, 1:32 AM EDT, 59 minutes earlier.
Area forecast discussion, Jun 20, 1:32 AM EDT, 59 minutes before
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</html>Hazardous weather outlook, Jun 19, 2:21 PM EDT, 12 hours 10 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 221 PM EDT SUN JUN 19 2011 PAZ021-029-031-WVZ002>004-012-201830- ALLEGHENY-WASHINGTON-GREENE-BROOKE-OHIO-MARSHALL-WETZEL- 221 PM EDT SUN JUN 19 2011 ...FLASH FLOOD WATCH IN EFFECT THROUGH MONDAY MORNING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWEST PENNSYLVANIA...NORTHERN WEST VIRGINIA AND NORTHERN PANHANDLE OF WEST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. FLASH FLOOD WATCH. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. FLASH FLOOD WATCH. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS MONDAY AND TUESDAY. DAMAGING WINDS WILL BE THE PRIMARY THREAT. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. MDZ001-PAZ073>076-WVZ021>023-041-201830- GARRETT-WESTMORELAND-WESTMORELAND RIDGES-FAYETTE-FAYETTE RIDGES- MARION-MONONGALIA-PRESTON-TUCKER- 221 PM EDT SUN JUN 19 2011 ...FLASH FLOOD WATCH IN EFFECT THROUGH MONDAY MORNING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...SOUTHWEST PENNSYLVANIA AND NORTHERN WEST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. FLASH FLOOD WATCH. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. FLASH FLOOD WATCH. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. OHZ039>041-048>050-057>059-068-069-PAZ007-013-014-020-WVZ001-201830- TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON-JEFFERSON OH- MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-MERCER-LAWRENCE-BUTLER- BEAVER-HANCOCK- 221 PM EDT SUN JUN 19 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL OHIO...NORTHWEST PENNSYLVANIA...SOUTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA AND NORTHERN PANHANDLE OF WEST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS MONDAY AND TUESDAY. DAMAGING WINDS WILL BE THE PRIMARY THREAT. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. PAZ008-009-015-016-022-023-201830- VENANGO-FOREST-CLARION-JEFFERSON PA-ARMSTRONG-INDIANA- 221 PM EDT SUN JUN 19 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST PENNSYLVANIA AND WEST CENTRAL PENNSYLVANIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
In the hours before
Local storm report, Jun 19, 10:17 PM EDT, 4 hours 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1017 PM EDT SUN JUN 19 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0930 PM FLOOD UHRICHSVILLE 40.39N 81.35W
06/19/2011 TUSCARAWAS OH EMERGENCY MNGR
BLIZZARD RIDGE ROAD FLOODED NEAR UHRICHSVILLE.
&&
EVENT NUMBER PBZ1100881
XXLocal storm report, Jun 19, 10:22 PM EDT, 4 hours 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1022 PM EDT SUN JUN 19 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1000 PM FLOOD LANSING 40.08N 80.79W
06/19/2011 BELMONT OH EMERGENCY MNGR
MUDSLIDES ON ROUTE 40 NEAR LANSING.
&&
EVENT NUMBER PBZ1100882
XXSpecial weather statement, Jun 19, 11:09 PM EDT, 3 hours 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 1109 PM EDT SUN JUN 19 2011 OHZ050-PAZ020-029-073-075-WVZ001-002-200500- BEAVER PA-BROOKE WV-FAYETTE PA-HANCOCK WV-JEFFERSON OH-WASHINGTON PA-WESTMORELAND PA- 1109 PM EDT SUN JUN 19 2011 ...HEAVY RAIN... SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN TO MOVE THROUGH THE FOLLOWING COUNTIES... JEFFERSON...FAYETTE...WASHINGTON...WESTMORELAND...BEAVER...BROOKE AND HANCOCK... AT 1100 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR IN PITTSBURGH SHOWED SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN ALONG A LINE EXTENDING FROM 5 MILES WEST OF NEW CUMBERLAND TO 3 MILES WEST OF BENTLEYVILLE...MOVING EAST AT 5 MPH. SHOWERS AND STORMS ALONG THIS LINE CAN PRODUCE HEAVY RAIN THAT WILL CAUSE PONDED WATER ON ROADS AND IN LOW LYING AREAS. SMALL STREAMS WILL RISE AND MAY EXCEED THEIR BANKS. SOME LOCATIONS THAT WILL BE IMPACTED BY THESE THUNDERSTORMS INCLUDE... COLLIERS... WASHINGTON... ENTERPRISE... AVELLA... WEIRTON... SUN VALLEY... TORONTO... BENTLEYVILLE... NEW CUMBERLAND... BURGETTSTOWN... CANONSBURG... CALIFORNIA... DO NOT DRIVE INTO AREAS WHERE THE WATER COVERS THE ROAD. MOVE TO HIGH GROUND WHEN FLOODING THREATENS. PLEASE REPORT HEAVY RAIN AND FLOODING PROBLEMS TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && LAT...LON 4053 8052 4004 7970 4005 8018 4051 8079 15
Local storm report, Jun 19, 11:42 PM EDT, 2 hours 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1142 PM EDT SUN JUN 19 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1120 PM FLASH FLOOD BRIDGEPORT 40.07N 80.75W
06/19/2011 BELMONT OH PUBLIC
STREAMS IN BUILDINGS.
&&
EVENT NUMBER PBZ1100883
NWSSpecial weather statement, Jun 20, 12:25 AM EDT, 2 hours 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1225 AM EDT MON JUN 20 2011
PAZ021-200530-
ALLEGHENY PA-
1225 AM EDT MON JUN 20 2011
...HEAVY RAIN...
SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN TO MOVE THROUGH THE
FOLLOWING COUNTY...ALLEGHENY...
AT 1218 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR IN PITTSBURGH
SHOWED SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN ALONG A LINE
EXTENDING FROM IMPERIAL TO 3 MILES SOUTHEAST OF BALDWIN...MOVING
NORTHWEST AT 5 MPH.
THIS AREA OF SHOWERS AND STORMS IS GENERATING RAINFALL AT THE RATE
OF AN INCH TO INCH AND A HALF PER HOUR. THIS RAIN WILL POND WATER
ON ROADS AND AND IN LOW LYING AREAS.
SOME LOCATIONS THAT WILL BE IMPACTED BY THESE SHOWERS INCLUDE...
MOUNT LEBANON... IMPERIAL... CARNEGIE...
BRENTWOOD... BALDWIN... UPPER SAINT CLAIR...
OAKDALE... BRIDGEVILLE... BETHEL PARK...
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. MOVE TO HIGHER GROUND.
PLEASE REPORT HEAVY RAIN AND FLOODING PROBLEMS TO THE NATIONAL
WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772.
LAT...LON 4051 8021 4028 7981 4029 8003 4033 8018
4048 8036
15Special weather statement, Jun 20, 1:31 AM EDT, 1 hour before
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</html>The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 11:09 PM EDT | Special Weather Statement | PBZ | Washington | 111 min |
| Jun 19, 11:40 PM EDT | Areal Flood Warning | PBZ | Beaver, Fayette, Greene, Washington, Westmoreland | 4 hr |
| Jun 20, 12:25 AM EDT | Special Weather Statement | PBZ | Allegheny | 65 min |
| Jun 20, 12:38 AM EDT | Flash Flood Warning | PBZ | Allegheny | 3 hr |
| Jun 20, 1:31 AM EDT | Special Weather Statement | PBZ | Fayette, Westmoreland | 119 min |
| Jun 19, 8:03 PM EDT | Flash Flood Warning | PBZ | Harrison | 3 hr |
| Jun 19, 8:19 PM EDT | Special Weather Statement | PBZ | Harrison | 56 min |
| Jun 19, 9:37 PM EDT | Special Weather Statement | PBZ | Belmont | 113 min |
| Jun 19, 9:53 PM EDT | Special Weather Statement | PBZ | Carroll | 112 min |
| Jun 19, 10:18 PM EDT | Areal Flood Warning | PBZ | Belmont | 6 hr |
| Jun 19, 10:37 PM EDT | Areal Flood Warning | PBZ | Carroll | 6 hr |
| Jun 19, 11:18 PM EDT | Flash Flood Warning | PBZ | Belmont | 3 hr |
Nearby
Areal Flood Advisories in Pennsylvania, 2011Every areal flood advisory in 2011
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.