Alert archive / Colorado / Wind Advisories in 2013

Wind Advisory 1, NWS Grand Junction, CO

March 17, 20134 counties in Colorado; Uintah County, Utah

NWS Grand Junction, CO issued this wind advisory at Mar 17, 2013, 3:34 AM MDT for 4 counties in Colorado; Uintah County, Utah. It took effect at Mar 17, 2013, 12:00 PM MDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Mar 17, 2013, 3:34 AM MDT (09:34 UTC)
In effect from
Mar 17, 2013, 12:00 PM MDT
Expired
Mar 17, 2013, 7:00 PM MDT
In force
7 hr
Issued by
NWS Grand Junction, CO

Counties Garfield County, CO, Moffat County, CO, Rio Blanco County, CO, Routt County, CO, Uintah County, UT

The radar

The Grand Junction radar (KGJX), 122 km from the middle of the area, began a volume at 09:37 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

Riverton, WY (KRIW), launched 00:00Z, 9.6 hours before the alert went out and 324 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, Riverton, WY at 00:00Z on 2013-03-17Temperature 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, Riverton, WY at 00:00Z on 2013-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2468 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
34 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 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 Mar 16, 3:10 PM MDT, 12 hours 24 minutes earlier.

Area forecast discussion, Mar 16, 3:10 PM MDT, 12 hours 24 minutes before
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Hazardous weather outlook, Mar 16, 5:42 AM MDT, 21 hours 52 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
542 AM MDT SAT MAR 16 2013

COZ001>014-017>023-UTZ022>025-027>029-171145-
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-FLATTOPS-
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-
542 AM MDT SAT MAR 16 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN
COLORADO.

.DAY ONE...TODAY AND TONIGHT

RAIN AND SNOW IS EXPECTED TODAY WITH SOME SNOW ACCUMULATIONS FOR
THE COLORADO MOUNTAINS AS A DISTURBANCE MOVES THROUGH THE AREA.
SNOW LEVELS WILL REMAIN HIGH THOUGH SO ACCUMULATIONS ARE EXPECTED
OVER 11000 FEET. SOME ISOLATED AFTERNOON THUNDERSTORMS ARE ALSO
POSSIBLE. BY MIDNIGHT...MOST PRECIPITATION WILL HAVE ENDED.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

A SECOND STRONGER SYSTEM WILL MOVE THROUGH SUNDAY BRINGING MORE
SNOW TO THE HIGHER ELEVATIONS OF COLORADO WITH 3 TO 6 INCHES OF
SNOW POSSIBLE. ALONG WITH SNOW...SURFACE WINDS OF 20 TO 30 MPH
ALONG WITH HIGHER GUSTS ARE POSSIBLE FOR THE NORTHERN VALLEYS AND
OVER HIGHER TERRAIN. ONCE THIS SYSTEM MOVES OUT BY MONDAY...THE
NEXT CHANCE FOR PRECIPITATION WILL BE WEDNESDAY THROUGH FRIDAY AS
ANOTHER STRONG DISTURBANCE MOVES OVER THE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

The office that day

Everything else NWS Grand Junction, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 16, 7:05 PM MDTWinter Weather AdvisoryGJTDelta, Eagle, Garfield, Gunnison, Mesa, Moffat and 4 more23 hr

Nearby

Wind Advisories in Colorado, 2013Wind Advisories in Utah, 2013Every wind advisory in 2013

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.