Alert archive / Oregon / Flash Flood Warnings in 1995

Flash Flood Warning 4, NWS Portland, OR

July 19, 1995Jefferson County, Oregon

NWS Portland, OR issued this flash flood warning at Jul 19, 1995, 3:05 PM PDT for Jefferson County, Oregon. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Jul 19, 1995, 3:05 PM PDT (22:05 UTC)
Expired
Jul 19, 1995, 3:45 PM PDT
In force
40 min
Issued by
NWS Portland, OR
Area
Whole counties

County Jefferson County, OR

The radar

The Portland,OR radar (KRTX), 185 km from the middle of the area, began a volume at 22:07 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

Medford/Jackson, OR (KMFR), launched 12:00Z, 10.1 hours before the alert went out and 283 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, Medford/Jackson, OR at 12:00Z on 1995-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 689 joules per kilogram.LCLLFCEL10008507005003002001001 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, Medford/Jackson, OR at 12:00Z on 1995-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.193958Sfc1 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
689 J/kg
Mixed-layer CIN
-184 J/kg
Mixed-layer LCL
936 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
44 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 19, 3:05 PM PDTSevere Thunderstorm WarningPQRJefferson40 min
Jul 19, 3:28 PM PDTFlash Flood WarningPQRJefferson47 min
Jul 19, 3:28 PM PDTSevere Thunderstorm WarningPQRJefferson47 min
Jul 19, 3:41 PM PDTFlash Flood WarningPQRJefferson49 min
Jul 19, 3:41 PM PDTSevere Thunderstorm WarningPQRJefferson49 min
Jul 19, 4:12 PM PDTFlash Flood WarningPQRLane48 min
Jul 19, 4:12 PM PDTSevere Thunderstorm WarningPQRDouglas, Lane48 min
Jul 19, 4:57 PM PDTFlash Flood WarningPQRLane48 min
Jul 19, 4:57 PM PDTSevere Thunderstorm WarningPQRDouglas, Lane48 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; radar from the NEXRAD Level II archive.