Arizona, 2009

Winter Storm in Arizona, November 29 to 30, 2009

November 29 to 30, 2009 · NWS TWC · 1 event in 1 county or zone

A cold upper low moved just south of Arizona November 29th into 30th. This resulted in significant snowfall in the higher elevations of Graham and Cochise Counties.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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.

What happened

The episode as NWS TWC wrote it up.

A cold upper low moved just south of Arizona November 29th into 30th. This resulted in significant snowfall in the higher elevations of Graham and Cochise Counties.

What forecasters said that day

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 Tucson, AZ wrote its last area forecast discussion before the first event at Nov 29, 2:06 PM MST, 5 hours 54 minutes earlier.

Area forecast discussion, Nov 29, 2:06 PM MST, 5 hours 54 minutes before
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Event by event

1 winter storm. Local standard time, as filed.

Winter Storm, Upper Gila River Valley

When
November 29, 8:00 PM MST to November 30, 7:00 AM MST
Where
Upper Gila River Valley forecast zone
Reported by
Other Federal Agency

About 20 inches of snow occurred at the top of Mt. Graham at an elevation above 10,000 feet.

What these are

Winter Storm
A storm that brought snow, sleet or freezing rain at warning levels, usually over several hours or days.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Arizona in 2009Every state in 2009This day in weather historyWarnings in Arizona, November 2009

Sources

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: 198785.