Alert archive / Colorado / Wind Advisories in 2020
Wind Advisory 11, NWS Grand Junction, CO
NWS Grand Junction, CO issued this wind advisory at Nov 6, 2020, 7:39 PM MST for 8 counties in Colorado; Grand County, San Juan County, Utah. It took effect at Nov 7, 2020, 11:00 AM MST. It was in force for 17 hr.
The area
The counties it named.
The facts
- Issued
- Nov 6, 2020, 7:39 PM MST (02:39 UTC)
- In effect from
- Nov 7, 2020, 11:00 AM MST
- Expired
- Nov 8, 2020, 3:36 AM MST
- In force
- 17 hr
- Issued by
- NWS Grand Junction, CO
Counties Delta County, CO, Dolores County, CO, Garfield County, CO, Gunnison County, CO, Mesa County, CO, Montezuma County, CO, Montrose County, CO, San Miguel County, CO, Grand County, UT, San Juan County, UT
The radar
The Grand Junction radar (KGJX), 74 km from the middle of the area, began a volume at 02:37 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
Grand Junction, CO (KGJT), launched 00:00Z, 2.7 hours before the alert went out and 79 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3189 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 151 m²/s²
- 0-3 km storm-relative helicity
- 232 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Junction, CO wrote its last area forecast discussion before this wind advisory went out at Nov 6, 4:26 PM MST, 3 hours 13 minutes earlier.
Area forecast discussion, Nov 6, 4:26 PM MST, 3 hours 13 minutes before
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</html>Hazardous weather outlook, Nov 6, 5:04 AM MST, 14 hours 35 minutes before
Hazardous Weather Outlook National Weather Service Grand Junction CO 504 AM MST Fri Nov 6 2020 COZ001>014-017>023-UTZ022>025-027>029-071215- Lower Yampa River Basin-Central Yampa River Basin- Roan and Tavaputs Plateaus-Elkhead and Park Mountains- Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor- Central Colorado River Basin-Grand and Battlement Mesas- Gore and Elk Mountains/Central Mountain Valleys- Central Gunnison and Uncompahgre River Basin- West Elk and Sawatch Mountains-Flat Tops- Upper Gunnison River Valley-Uncompahgre Plateau and Dallas Divide- Northwest San Juan Mountains-Southwest San Juan Mountains- Paradox Valley/Lower Dolores River- Four Corners/Upper Dolores River-Animas River Basin- San Juan River Basin-Southeast Utah-Eastern Uinta Mountains- Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat- La Sal and Abajo Mountains-Canyonlands/Natural Bridges- 504 AM MST Fri Nov 6 2020 This hazardous weather outlook is for eastern Utah and western Colorado. .DAY ONE...Today and Tonight Light rain/snow will begin over the San Juan Mountains tonight. .DAYS TWO THROUGH SEVEN...Saturday through Thursday A cold front will bring rain and then snow to the western slope from Saturday through Monday. Expect some isolated thunder on Saturday with several inches of new snow possible in the mid and upper elevations from Saturday night onwards through Monday. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.
Nearby
Wind Advisories in Colorado, 2020Wind Advisories in Utah, 2020Every wind advisory in 2020
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.