Alert archive / Oregon / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 9, NWS Boise, ID

June 3, 2009Harney County, Oregon

NWS Boise, ID issued this severe thunderstorm warning at Jun 3, 2009, 5:52 PM PDT for Harney County, Oregon. It was in force for 38 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 3, 2009, 5:52 PM PDT (00:52 UTC)
Expired
Jun 3, 2009, 6:30 PM PDT
In force
38 min
Issued by
NWS Boise, ID
Area
Storm-based polygon

County Harney County, OR

The radar

The Boise radar (KCBX), 226 km from the middle of the area, began a volume at 00:53 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, 0.9 hours before the alert went out and 322 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 00:00Z on 2009-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 12 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 00:00Z on 2009-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 square meters per square second.19395878Sfc1 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
12 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
2186 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Boise, ID issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 3, 7:30 PM PDTSpecial Weather StatementBOI45 min
Jun 4, 1:30 PM PDTFlash Flood WarningBOIElmore, Owyhee60 min
Jun 3, 5:14 PM PDTSevere Thunderstorm WarningBOIHarney46 min
Jun 3, 9:44 PM PDTSevere Thunderstorm WarningBOIHarney46 min
Jun 3, 10:25 PM PDTSpecial Weather StatementBOIMalheur50 min
Jun 4, 1:15 PM PDTSpecial Weather StatementBOIHarney45 min

Nearby

Severe Thunderstorm Warnings in Oregon, 2009Every severe thunderstorm warning in 2009

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.