Alert archive / Pennsylvania / Flash Flood Warnings in 2000

Flash Flood Warning 49, NWS Pittsburgh, PA

August 6, 2000Garrett County, Maryland; Fayette County, Greene County, Pennsylvania; Marshall County, Preston County, West Virginia

NWS Pittsburgh, PA issued this flash flood warning at Aug 6, 2000, 10:47 AM EDT for Garrett County, Maryland; Fayette County, Greene County, Pennsylvania; Marshall County, Preston 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, 10:47 AM EDT (14:47 UTC)
Expired
Aug 6, 2000, 2:00 PM EDT
In force
3 hr
Issued by
NWS Pittsburgh, PA
Area
Whole counties

Counties Garrett County, MD, Fayette County, PA, Greene County, PA, Marshall County, WV, Preston County, WV

The radar

The Pittsburgh radar (KPBZ), 94 km from the middle of the area, began a volume at 14:47 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 2.8 hours before the alert went out and 231 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2000-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2000-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 199 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS51 KPBZ 061449
FFWPBZ
MDC023-PAC051-059-WVC051-077-061745-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
1047 AM EDT SUN AUG 6 2000

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GARRETT COUNTY IN MARYLAND
  FAYETTE COUNTY IN PENNSYLVANIA
  GREENE COUNTY IN PENNSYLVANIA
  MARSHALL COUNTY IN WEST VIRGINIA
  PRESTON COUNTY IN WEST VIRGINIA

* UNTIL 200 PM EDT

* AT 1045 AM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED HEAVY RAINS
  MOVING ACROSS AREAS THAT HAVE ALREADY RECEIVED HEAVY RAINS SUNDAY
  MORNING. THIS ADDITIONAL HEAVY RAINFALL WILL CAUSE STREAMS TO OVERFLOW
  THEIR BANKS.

* OTHER LOCATIONS IN THE WARNING INCLUDE...FRIENDSVILLE...BRUCETON
  MILLS...  WAYNESBURG...REPUBLIC AND CAMERON.

<<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.

The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 6, 1:42 PM EDTFlash Flood WarningPBZGarrett4 hr
Aug 6, 8:19 AM EDTFlash Flood WarningPBZAllegheny, Beaver, Fayette, Greene, Washington, Westmoreland3 hr
Aug 6, 10:59 AM EDTFlash Flood WarningPBZWestmoreland3 hr
Aug 6, 11:50 AM EDTFlash Flood WarningPBZWashington3 hr
Aug 6, 1:09 PM EDTFlash Flood WarningPBZAllegheny111 min

Nearby

Flash Flood Warnings in Pennsylvania, 2000Flash Flood Warnings in West Virginia, 2000Flash Flood Warnings in Maryland, 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.