Alert archive / Oregon / Flash Flood Warnings in 2019

Flash Flood Warning 4, NWS Pendleton, OR

June 12, 2019Wasco County, Oregon

NWS Pendleton, OR issued this flash flood warning at Jun 12, 2019, 6:18 PM PDT for Wasco County, Oregon. It was in force for 115 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 12, 2019, 6:18 PM PDT (01:18 UTC)
Expired: Jun 12, 2019, 8:13 PM PDT
In force: 115 min
Issued by: NWS Pendleton, OR
Area: Storm-based polygon
Flood severity: None

County Wasco County, OR

The radar

The Portland,OR radar (KRTX), 153 km from the middle of the area, began a volume at 01:18 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 00:00Z, 1.3 hours before the alert went out and 337 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 181 J/kg
Mixed-layer CIN: -243 J/kg
Mixed-layer LCL: 3704 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: 14 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Pendleton, OR wrote its last area forecast discussion before this flash flood warning went out at Jun 12, 4:22 PM PDT, 1 hour 56 minutes earlier.

Area forecast discussion, Jun 12, 4:22 PM PDT, 1 hour 56 minutes before

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In the hours before

Special weather statement, Jun 12, 4:59 PM PDT, 1 hour 19 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 5:34 PM PDT	Severe Thunderstorm Warning	PDT	Wasco	56 min
Jun 12, 6:32 PM PDT	Severe Thunderstorm Warning	PDT	Wasco	35 min

Nearby

Flash Flood Warnings in Oregon, 2019 Every flash flood warning in 2019

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.