The snowstorm of December 8 to 9, 1999
A snowstorm NOAA ranked in 1 region on its Regional Snowfall Index, strongest in the South.
What the offices filed during it
Winter weather episodes east of the Rockies from the day before the storm began to the day after it ended, colored by kind.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The storm by region
Each region’s thresholds are its own, so the same depth of snow counts for more in the South than in the Northeast.
| Region | Index | Category | Area with snow (sq mi) | People under snow | Above the top threshold (sq mi) | People above it |
|---|---|---|---|---|---|---|
| South | 0.30 | Below category 1 | 70,422 | 1,349,821 | 0 | 0 |
The Regional Snowfall Index is NOAA’s ranking of snowstorms east of the Rockies by how much snow fell, over how wide an area and on how many people, region by region: the area and the population above four snowfall thresholds set for each region, weighted against that region’s own history. A storm is scored in each region it reached, on a scale from 1, notable, to 5, extreme.
The toll the offices filed
- Events
- 40
- Deaths
- 0
- Injuries
- 0
- Damage
- None recorded
- Episodes
- 10
Every winter weather episode the Weather Service filed east of the Rockies in these dates. A few may belong to another system on the same days. 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.
Episode by episode
- Heavy Snow in Oregon, December 7, 1999Heavy snow fell in the Blue Mountains of eastern Oregon and Washington. Meacham received 7 inches of snow in 9 hours. Tollgate, at an elevation of 5200 ft, received 6 inches between 2 am and 11 am.
- Heavy Snow in Utah, December 7, 1999Another storm brought good amounts of snow to mainly Northern Utah. Alta, Brian Head and Solitude received 13 inches, Snowbird had 12 inches and Brighton 11 inches. Most valley locations picked up 2-4 inches with 3-6 inches on the benches.
- Heavy Snow in Alaska, December 8, 199911 inches of new snow was recorded at the DOT site just east of the town of Cordova. Most of the snow fell in 12 hours between 9am and 9pm Wednesday.
- Heavy Snow in Alaska, December 8, 1999Heavy snow warning for Zone 22 West of Yakutat. Satellite data indicated heavy snow showers were over coastal areas where no surface observations were available.
- Blizzard and High Wind in Alaska, December 8 to 11, 1999Strong northwesterly winds to 60 mph were observed along the western Aleutians late Wednesday and Thursday. A strong 966 mb low, just south of Attu late Wednesday afternoon, moved east southeast then dissipated Thursday morning.
- Heavy Snow in New Mexico, December 8 to 9, 1999A swath of heavy snow developed across the central highlands eastward into the east central plains. Up to 8 inches of fresh snow was estimated across the southern Manzano Mountains.
- Heavy Snow in Texas, December 8 to 9, 1999Another upper level storm developed into the Pacific Northwest on the 7th. This storm translated into the Southern Rocky Mountains on the 8th and into the Southern Plains during the early morning hours of the 9th.
- Heavy Snow in Texas, December 8 to 9, 1999A closed upper low over central New Mexico moved east to south of the Texas panhandle during the nighttime and early morning hours. Heavy snowfall occurred across the extreme southwest and south-central Texas panhandle during this period.
- Winter Storm in California, December 9, 1999The first winter storm for many this winter season in the Northern Sierra Nevada was responsible for disrupting electrical power for 1,300 PG&E customers. A mix of rain, wet snow, and ice severed power lines mainly in western Nevada County.
- Heavy Snow in Utah, December 10, 1999Another quick shot of snow, with the higher amounts across the north. Alta received 14 inches and Snowbird 12 inches. Most northern valleys got 2-5 inches of snow. Cedar City in southwest Utah picked up 4 inches, and Brian Head got 13 inches.
More
The snowstorm of December 3 to 6, 1999The snowstorm of December 9 to 12, 1999Snow nowEvery winter storm filed
Sources
NOAA NCEI Regional Snowfall Index, and the Storm Events Database for the episodes.