Alert archive / Colorado / High Wind Watches in 2012

High Wind Watch 1, NWS Grand Junction, CO

January 17, 20129 counties in Colorado

NWS Grand Junction, CO issued this high wind watch at Jan 17, 2012, 8:53 AM MST for 9 counties in Colorado. It took effect at Jan 18, 2012, 12:00 AM MST. It was in force for .

The area

The counties it named.

The facts

Issued: Jan 17, 2012, 8:53 AM MST (15:53 UTC)
In effect from: Jan 18, 2012, 12:00 AM MST
Expired: Jan 17, 2012, 11:49 AM MST
In force
Issued by: NWS Grand Junction, CO

Counties Delta County, CO, Eagle County, CO, Garfield County, CO, Gunnison County, CO, Moffat County, CO, Montrose County, CO, Pitkin County, CO, Rio Blanco County, CO, Routt County, CO

The radar

The Grand Junction radar (KGJX), 74 km from the middle of the area, began a volume at 15:54 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 12:00Z, 3.9 hours before the alert went out and 90 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2206 m above ground
0-6 km bulk shear: 104 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 194 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 high wind watch 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 high wind watch went out at Jan 17, 3:45 AM MST, 5 hours 8 minutes earlier.

Area forecast discussion, Jan 17, 3:45 AM MST, 5 hours 8 minutes before

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Hazardous weather outlook, Jan 17, 5:48 AM MST, 3 hours 5 minutes before

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In the hours before

Local storm report, Jan 17, 6:56 AM MST, 1 hour 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
656 AM MST TUE JAN 17 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 AM     SNOW             TELLURIDE               37.94N 107.81W
01/17/2012  M10.0 INCH       SAN MIGUEL         CO   TRAINED SPOTTER

            24 HOUR TOTAL AT TELLURIDE SKI...STORM TOTAL SNOWFALL
            12.0 INCHES

&&

EVENT NUMBER GJT1200031

TB

Local storm report, Jan 17, 6:58 AM MST, 1 hour 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
658 AM MST TUE JAN 17 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 AM     SNOW             SNOWMASS                39.33N 106.98W
01/17/2012  M11.0 INCH       PITKIN             CO   TRAINED SPOTTER

            24 HOUR TOTAL AT SNOWMASS SKI...STORM TOTAL 13.0 INCHES

&&

EVENT NUMBER GJT1200032

TB

Local storm report, Jan 17, 8:09 AM MST, 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
809 AM MST TUE JAN 17 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0744 AM     SNOW             15 W MONTROSE           38.48N 108.15W
01/17/2012  M4.8 INCH        MONTROSE           CO   TRAINED SPOTTER

            24 HOUR SNOWFALL...STORM TOTAL SNOWFALL 9.8 INCHES

&&

EVENT NUMBER GJT1200033

TB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 17, 11:49 AM MST	High Wind Warning	GJT	Delta, Eagle, Garfield, Gunnison, Moffat, Montrose and 3 more	39 hr
Jan 17, 11:49 AM MST	Wind Advisory	GJT	Archuleta, Dolores, Gunnison, Hinsdale, La Plata, Montezuma and 4 more	39 hr

Nearby

High Wind Watches in Colorado, 2012 Every high wind watch in 2012

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.