Alert archive / Oregon / Snow Advisories in 2006

Snow Advisory 21, NWS Boise, ID

November 26, 2006Owyhee County, Twin Falls County, Idaho; Baker County, Harney County, Malheur County, Oregon

NWS Boise, ID issued this snow advisory at Nov 26, 2006, 2:56 AM MST for Owyhee County, Twin Falls County, Idaho; Baker County, Harney County, Malheur County, Oregon. It took effect at Nov 26, 2006, 3:00 PM MST. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued
Nov 26, 2006, 2:56 AM MST (09:56 UTC)
In effect from
Nov 26, 2006, 3:00 PM MST
Expired
Nov 27, 2006, 2:51 PM MST
In force
24 hr
Issued by
NWS Boise, ID

Counties Owyhee County, ID, Twin Falls County, ID, Baker County, OR, Harney County, OR, Malheur County, OR

The radar

The Boise radar (KCBX), 72 km from the middle of the area, began a volume at 10:01 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

Reno, NV (KREV), launched 00:00Z, 9.9 hours before the alert went out and 413 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, Reno, NV at 00:00Z on 2006-11-26Temperature 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 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Reno, NV at 00:00Z on 2006-11-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2240 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
76 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
Nov 25, 9:15 PM MSTHeavy Snow WarningBOIAdams, Boise, Camas, Elmore, Gem, Owyhee and 2 more39 hr
Nov 26, 2:56 AM MSTSnow AdvisoryBOIAda, Canyon, Elmore, Gem, Gooding, Jerome and 4 more36 hr
Nov 26, 2:56 AM MSTWinter Storm WarningBOICamas, Elmore, Owyhee, Twin Falls13 hr

Nearby

Snow Advisories in Oregon, 2006Snow Advisories in Idaho, 2006Every snow advisory in 2006

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.