Alert archive / Colorado / Freezing Rain Advisories in 2007

Freezing Rain Advisory 2, NWS Pueblo, CO

December 1, 2007Custer County, Fremont County, Teller County, Colorado

NWS Pueblo, CO issued this freezing rain advisory at Dec 1, 2007, 6:15 AM MST for Custer County, Fremont County, Teller County, Colorado. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Dec 1, 2007, 6:15 AM MST (13:15 UTC)
Expired
Dec 1, 2007, 9:49 AM MST
In force
4 hr
Issued by
NWS Pueblo, CO

Counties Custer County, CO, Fremont County, CO, Teller County, CO

The radar

The Pueblo radar (KPUX), 99 km from the middle of the area, began a volume at 13:16 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, 1.3 hours before the alert went out and 284 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, Grand Junction, CO at 12:00Z on 2007-12-01Temperature 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, Grand Junction, CO at 12:00Z on 2007-12-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.1939587897117136Sfc1 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
569 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
48 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 freezing rain advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pueblo, CO wrote its last area forecast discussion before this freezing rain advisory went out at Dec 1, 4:29 AM MST, 1 hour 46 minutes earlier.

Area forecast discussion, Dec 1, 4:29 AM MST, 1 hour 46 minutes before
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Hazardous weather outlook, Nov 30, 2:49 PM MST, 15 hours 26 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PUEBLO CO
249 PM MST FRI NOV 30 2007

COZ058>089-093>099-011400-
WESTERN MOSQUITO RANGE/EAST LAKE COUNTY ABOVE 11000 FT-
LEADVILLE VICINITY/LAKE COUNTY BELOW 11000 FT-
EASTERN SAWATCH MOUNTAINS ABOVE 11000 FT-
WESTERN CHAFFEE COUNTY BETWEEN 9000 AND 11000 FT-
CENTRAL CHAFFEE COUNTY BELOW 9000 FT-
WESTERN MOSQUITO RANGE/EAST CHAFFEE COUNTY ABOVE 9000 FT-
SAGUACHE COUNTY WEST OF CONTINENTAL DIVIDE BELOW 10000 FT-
SAGUACHE COUNTY EAST OF CONTINENTAL DIVIDE BELOW 10000 FT-
LA GARITA MOUNTAINS ABOVE 10000 FT-
UPPER RIO GRANDE VALLEY/EASTERN SAN JUAN MOUNTAINS BELOW 10000 FT-
EASTERN SAN JUAN MOUNTAINS ABOVE 10000 FT-
DEL NORTE VICINITY/NORTHERN SAN LUIS VALLEY BELOW 8500 FT-
ALAMOSA VICINITY/CENTRAL SAN LUIS VALLEY BELOW 8500 FT-
SOUTHERN SAN LUIS VALLEY-
NORTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 8500 AND 11000 FT-
NORTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FEET-
SOUTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 7500 AND 11000 FT-
SOUTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FT-
NORTHWESTERN FREMONT COUNTY ABOVE 8500 FT-
WESTERN/CENTRAL FREMONT COUNTY BELOW 8500 FT-
WET MOUNTAIN VALLEY BELOW 8500 FEET-
WET MOUNTAINS BETWEEN 6300 AND 10000 FT-
WET MOUNTAINS ABOVE 10000 FT-
TELLER COUNTY/RAMPART RANGE ABOVE 7500 FT/PIKES PEAK BETWEEN
7500 AND 11000 FT-PIKES PEAK ABOVE 11000 FT-
CANON CITY VICINITY/EASTERN FREMONT COUNTY-
NORTHERN EL PASO COUNTY/MONUMENT RIDGE/RAMPART RANGE BELOW
7500 FT-
COLORADO SPRINGS VICINITY/SOUTHERN EL PASO COUNTY/RAMPART RANGE
BELOW 7400 FT-PUEBLO AND VICINITY/PUEBLO COUNTY BELOW 6300 FT-
WALSENBURG VICINITY/UPPER HUERFANO RIVER BASIN BELOW 7500 FT-
TRINIDAD VICINITY/WESTERN LAS ANIMAS COUNTY BELOW 7500 FT-
CROWLEY COUNTY-LA JUNTA VICINITY/OTERO COUNTY-
EASTERN LAS ANIMAS COUNTY-WESTERN KIOWA COUNTY-
EASTERN KIOWA COUNTY-LAS ANIMAS VICINITY/BENT COUNTY-
LAMAR VICINITY/PROWERS COUNTY-SPRINGFIELD VICINITY/BACA COUNTY-
249 PM MST FRI NOV 30 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL...EAST
CENTRAL...SOUTH CENTRAL AND SOUTHEAST COLORADO.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A MAJOR WINTER STORM IS EXPECTED TO MAINLY AFFECT THE MOUNTAINS
OF SOUTHERN COLORADO. VERY HEAVY SNOW ACCUMULATIONS ARE EXPECTED
ACROSS MOST OF THE EASTERN SAWATCH RANGE IN CENTRAL COLORADO...AND
ACROSS THE EASTERN SAN JUAN AND LA GARITA MOUNTAINS. BY EARLY
SATURDAY MORNING...SNOW ACCUMULATIONS ABOVE 9000 FEET COULD RANGE
FROM 1 TO 2 1/2 FEET ACROSS THE EASTERN SAN JUANS AND LA GARITA
MOUNTAINS...AND 1 TO 1 1/2 FEET ACROSS THE EASTERN SAWATCH RANGE.
SNOW WILL ALSO BEGIN PILING UP IN THE UPPER REACHES OF THE SANGRE
DE CRISTO MOUNTAINS TONIGHT...WITH 6 INCHES POSSIBLE BY EARLY
SATURDAY MORNING.

ACROSS THE I-25 CORRIDOR AND SOUTHEAST PLAINS...WINTER PRECIPITATION
WILL OCCUR TONIGHT INTO EARLY SATURDAY MORNING. A MIX OF
RAIN...FREEZING RAIN...SLEET AND SNOW WILL OCCUR. THE FREEZING RAIN
THREAT WILL BE ESPECIALLY LIKELY ACROSS EL PASO COUNTY...AND KIOWA
AND PROWERS COUNTY...FROM MIDNIGHT THROUGH DAWN.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A MAJOR WINTER STORM WILL CONTINUE TO AFFECT SOUTHERN COLORADO
THROUGH EARLY SUNDAY. HEAVY SNOW AND STRONG WINDS WILL CONTINUE
ALONG THE CONTINENTAL DIVIDE AND OVER THE SANGRE DE CRISTO
MOUNTAINS. WINDS GUSTING OVER 50 MPH WILL PRODUCE AREAS OF
BLOWING SNOW AND POOR VISIBILITY. STORM TOTAL SNOWFALL BY SUNDAY
MORNING IS EXPECTED TO RANGE FROM 2 TO 4 FEET OVER THE SOUTHWEST
MOUNTAINS...1 TO 3 FEET OVER THE CENTRAL MOUNTAINS...AND 6 TO 12
INCHES OVER THE HIGHER TERRAIN OF THE SANGRE DE CRISTO MOUNTAINS.

ELSEWHERE...SNOWFALL TOTALS BY EARLY SUNDAY WILL GENERALLY BE LESS
THAN 6 INCHES ACROSS THE MOUNTAINS AND HIGH VALLEYS...AND LESS
THAN AN INCH ACROSS THE PLAINS.

HIGH WINDS WILL BE LIKELY OVER PORTIONS OF SOUTHEAST COLORADO
PLAINS ON SATURDAY. SOUTHWEST WINDS OF 20 TO 40 MPH WITH GUSTS TO
60 MPH WILL BE LIKELY...GENERALLY ACROSS KIOWA...OTERO...BENT...
PROWERS....AND BACA COUNTIES.

.SPOTTER INFORMATION STATEMENT...

WEATHER CONDITIONS THAT MEET REPORTING CRITERIA FOR SPOTTERS WILL
BE LIKELY ACROSS THE AREA...ESPECIALLY ACROSS THE HIGHER
ELEVATIONS...TODAY AND TONIGHT.

METZE

In the hours before

Local storm report, Dec 1, 1:19 AM MST, 4 hours 56 minutes before
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Local storm report, Dec 1, 5:32 AM MST, 43 minutes before
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Local storm report, Dec 1, 5:38 AM MST, 37 minutes before
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Local storm report, Dec 1, 6:12 AM MST, 3 minutes before
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Nearby

Freezing Rain Advisories in Colorado, 2007Every freezing rain advisory in 2007

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.