Alert archive / Utah / Winter Storm Watches in 2014
Winter Storm Watch 21, NWS Grand Junction, CO
NWS Grand Junction, CO issued this winter storm watch at Dec 20, 2014, 2:49 PM MST for Daggett County, Uintah County, Utah. It took effect at Dec 22, 2014, 12:00 AM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 20, 2014, 2:49 PM MST (21:49 UTC)
- In effect from
- Dec 22, 2014, 12:00 AM MST
- Expired
- Dec 21, 2014, 2:57 AM MST
- In force
- Issued by
- NWS Grand Junction, CO
Counties Daggett County, UT, Uintah County, UT
The radar
The Grand Junction radar (KGJX), 195 km from the middle of the area, began a volume at 21:53 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
Riverton, WY (KRIW), launched 12:00Z, 9.8 hours before the alert went out and 300 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
- 1474 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter storm 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 winter storm watch went out at Dec 20, 10:46 AM MST, 4 hours 3 minutes earlier.
Area forecast discussion, Dec 20, 10:46 AM MST, 4 hours 3 minutes before
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</html>Hazardous weather outlook, Dec 20, 5:23 AM MST, 9 hours 26 minutes before
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
The office that day
Everything else NWS Grand Junction, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 20, 3:29 AM MST | Winter Storm Warning | GJT | Delta, Eagle, Garfield, Gunnison, Hinsdale, Mesa and 7 more | 69 hr |
| Dec 20, 3:29 AM MST | Winter Weather Advisory | GJT | Archuleta, Delta, Dolores, Garfield, Gunnison, Hinsdale and 8 more | 63 hr |
Nearby
Winter Storm Watches in Utah, 2014Every winter storm watch in 2014
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.