Recent snowfall increased moisture in the lower atmosphere which became trapped under high pressure. This resulted in areas of dense fog.
Every event with a place to put it; 3 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS GJT wrote it up.
Recent snowfall increased moisture in the lower atmosphere which became trapped under high pressure. This resulted in areas of dense fog.
The local office's own words before the first event, 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 the first event at Nov 24, 4:46 AM MST, 2 hours 14 minutes earlier.
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</html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
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
626 AM MST SUN NOV 24 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0500 AM HEAVY SNOW 3 NE LA PLATA 37.43N 108.02W
11/24/2013 E36.0 INCH LA PLATA CO SNOTEL
ESTIMATED STORM TOTAL SNOWFALL SINCE 4 PM WEDNESDAY.
&&
EVENT NUMBER GJT1302040
DCPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
627 AM MST SUN NOV 24 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0500 AM HEAVY SNOW 14 SSW RIO GRANDE RSVR 37.52N 107.32W
11/24/2013 E35.0 INCH HINSDALE CO SNOTEL
ESTIMATED STORM TOTAL SNOWFALL SINCE 4 PM WEDNESDAY.
&&
EVENT NUMBER GJT1302041
DCPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
628 AM MST SUN NOV 24 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0500 AM HEAVY SNOW 1 SE ABAJAO SNOTEL 37.82N 109.48W
11/24/2013 E41.0 INCH SAN JUAN UT SNOTEL
ESTIMATED STORM TOTAL SNOWFALL SINCE 4 PM WEDNESDAY.
&&
EVENT NUMBER GJT1302042
DCPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
640 AM MST SUN NOV 24 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0500 AM SNOW 9 S DURANGO 37.16N 107.87W
11/24/2013 M2.8 INCH LA PLATA CO TRAINED SPOTTER
24 HOUR SNOWFALL
&&
EVENT NUMBER GJT1302043
DCPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
641 AM MST SUN NOV 24 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0600 AM HEAVY SNOW SILVERTON 37.81N 107.66W
11/24/2013 M5.5 INCH SAN JUAN CO CAIC
24 HOUR SNOWFALL
&&
EVENT NUMBER GJT1302044
DCPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
652 AM MST SUN NOV 24 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0600 AM HEAVY SNOW COAL BANK PASS 37.70N 107.78W
11/24/2013 E7.0 INCH SAN JUAN CO CAIC
ESTIMATED 24 HOUR SNOWFALL OF 5 TO 8 INCHES OVER THE
SAN JUAN MOUNTAIN PASSES
&&
EVENT NUMBER GJT1302045
DCThe national radar mosaic for the moment the first event began.
3 dense fog. Local standard time, as filed.
Dense fog occurred across portions of the Grand Valley. Visibilities dropped down to a quarter mile or less as reported by NWS employees and also observed at the Grand Junction Regional Airport.
Dense fog occurred across portions of Interstate 70, with visibilities down to a quarter mile or less.
Dense fog occurred across portions of Montrose County, with visibilities down to a quarter mile.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2013Every state in 2013This day in weather historyWarnings in Colorado, November 2013
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 516694, 516695, 516697.