Alert archive / Colorado / Freeze Warnings in 2012
Freeze Warning 12, NWS Grand Junction, CO
NWS Grand Junction, CO issued this freeze warning at Oct 24, 2012, 3:02 PM MDT for Garfield County, Mesa County, Colorado; Grand County, San Juan County, Utah. It took effect at Oct 26, 2012, 12:00 AM MDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 24, 2012, 3:02 PM MDT (21:02 UTC)
- In effect from
- Oct 26, 2012, 12:00 AM MDT
- Expired
- Oct 26, 2012, 9:00 AM MDT
- In force
- 9 hr
- Issued by
- NWS Grand Junction, CO
Counties Garfield County, CO, Mesa County, CO, Grand County, UT, San Juan County, UT
The radar
The Grand Junction radar (KGJX), 69 km from the middle of the area, began a volume at 21:06 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, 9.0 hours before the alert went out and 52 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
- 2532 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 193 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freeze warning 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 freeze warning went out at Oct 24, 10:58 AM MDT, 4 hours 4 minutes earlier.
Area forecast discussion, Oct 24, 10:58 AM MDT, 4 hours 4 minutes before
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</html>Hazardous weather outlook, Oct 24, 5:45 AM MDT, 9 hours 17 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND JUNCTION CO 545 AM MDT WED OCT 24 2012 COZ001>014-017>023-UTZ022>025-027>029-251200- 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- 545 AM MDT WED OCT 24 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN COLORADO. .DAY ONE...TODAY AND TONIGHT SHOWERS WILL INCREASE AS THE DAY WEARS ON...SPREADING FROM THE EASTERN UINTA MOUNTAINS ACROSS THE NORTHWEST COLORADO PLATEAU AND INTO THE NORTHERN AND CENTRAL COLORADO MOUNTAINS. SNOW LEVELS WILL LOWER DURING THE DAY REACHING MOUNTAIN BASES LATE THIS AFTERNOON INTO THE EARLY EVENING. PERIODS OF SNOW WILL BRING ACCUMULATIONS RANGING FROM 4 TO 8 INCHES ACROSS THE PARK...GORE AND ELK RANGES AND THE FLAT TOPS BY SUNRISE THURSDAY. THE EASTERN UINTA MOUNTAINS CAN EXPECT 3 TO 6 INCHES BY 9 PM THIS EVENING. IN ADDITION TO SNOW...EXPECT A FEW THUNDERSTORMS TO DEVELOP DURING THE AFTERNOON. ACROSS THE SOUTHERN HALF OF THE REGION...STRONG AND GUSTY SOUTHWEST WINDS WILL DEVELOP AHEAD OF A COLD FRONT MOVING SOUTHWARD THROUGH THE AREA WITH SOME GUSTS APPROACHING 45 MPH AT TIMES. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY ADDITIONAL SNOW WILL FALL ACROSS THE NORTHERN AND CENTRAL MOUNTAINS THURSDAY AND THURSDAY NIGHT THOUGH ADDITIONAL ACCUMULATIONS ARE EXPECTED TO BE LIGHT. A FEW SNOW SHOWERS WILL LINGER ACROSS THE AREA FRIDAY BEFORE DIMINISHING FRIDAY NIGHT. FREEZING TEMPERATURES ARE EXPECTED ACROSS MUCH OF THE REGION EARLY SATURDAY WITH A SEASON ENDING FREEZE POSSIBLE FOR SOUTHEAST UTAH...THE GRAND VALLEY...AND THE LOWER ELEVATIONS OF MONTEZUMA AND DOLORES COUNTIES. A FEW LIGHT SNOW SHOWERS ARE POSSIBLE ACROSS THE NORTHERN MOUNTAINS PERIODICALLY THROUGH THE WEEKEND... OTHERWISE QUIET WEATHER WILL RETURN TO THE REGION INTO EARLY NEXT WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED TODAY OR TONIGHT...HOWEVER SPOTTERS ARE ENCOURAGED TO REPORT SNOWFALL AMOUNTS TO THE NATIONAL WEATHER SERVICE IN GRAND JUNCTION. NL
The office that day
Everything else NWS Grand Junction, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 24, 10:27 AM MDT | Wind Advisory | GJT | Archuleta, Delta, Dolores, Gunnison, Hinsdale, La Plata and 5 more | 9 hr |
| Oct 24, 3:02 PM MDT | Freeze Warning | GJT | Dolores, Montezuma, San Miguel | 18 hr |
Nearby
Freeze Warnings in Colorado, 2012Freeze Warnings in Utah, 2012Every freeze warning 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.