Alert archive / Oregon / Flash Flood Warnings in 1995

Flash Flood Warning 3, NWS Portland, OR

July 9, 1995Gilliam County, Oregon

NWS Portland, OR issued this flash flood warning at Jul 9, 1995, 12:47 PM PDT for Gilliam County, Oregon. It was in force for 43 min.

The area

The counties it named.

The facts

Issued
Jul 9, 1995, 12:47 PM PDT (19:47 UTC)
Expired
Jul 9, 1995, 1:30 PM PDT
In force
43 min
Issued by
NWS Portland, OR
Area
Whole counties

County Gilliam County, OR

The nearest sounding before it

Spokane Intl Airport, WA (KGEG), launched 12:00Z, 7.8 hours before the alert went out and 325 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, Spokane Intl Airport, WA at 12:00Z on 1995-07-09Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane Intl Airport, WA at 12:00Z on 1995-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 square meters per square second.1939587897Sfc1 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
1252 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
281 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

Everything else NWS Portland, OR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 8, 5:55 PM PDTSevere Thunderstorm WarningPQRGilliam, Sherman34 min
Jul 8, 6:03 PM PDTSevere Thunderstorm WarningPQRHood River26 min
Jul 8, 9:27 PM PDTSevere Thunderstorm WarningPQRJefferson, Wasco63 min
Jul 9, 11:38 AM PDTFlash Flood WarningPQRGilliam, Sherman, Wasco67 min
Jul 9, 11:38 AM PDTFlash Flood WarningPQRJefferson, Wheeler67 min
Jul 9, 11:38 AM PDTSevere Thunderstorm WarningPQRGilliam, Sherman, Wasco, Wheeler67 min
Jul 9, 11:38 AM PDTSevere Thunderstorm WarningPQRJefferson48 min
Jul 9, 12:47 PM PDTSevere Thunderstorm WarningPQRGilliam43 min

Nearby

Flash Flood Warnings in Oregon, 1995Every flash flood warning in 1995

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.