Name: Flash Flood in New Mexico, August 11, 2001
Start: 2001-08-11T11:40
End: 2001-08-11T11:40
Location: New Mexico

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $100,000
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 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 Albuquerque, NM wrote its last area forecast discussion before the first event at Aug 11, 2:05 AM MST, 9 hours 35 minutes earlier.

Area forecast discussion, Aug 11, 2:05 AM MST, 9 hours 35 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ALBUQUERQUE NM
305 AM MDT SAT AUG 11 2001

00Z 500MB ANAL SHOWS THE DEFORMATION AXIS STILL ORIENTED FROM SW TO
NE ACROSS NM. MODELS SHOW THE AXIS BECOMING ORIENTED FROM W TO E OVER
THE NEXT 24-48 HOURS AND MOVING INTO THE SOUTHERN HALF OF NM...AS THE
UPPER HIGH OVER SOCAL MOVES EAST TO OVER THE NM/CO BORDER. TODAY WILL
BE SIMILAR TO YESTERDAY...WITH SCATTERED SHOWERS AND THUNDERSTORMS.
HIGHEST POPS TODAY WILL BE OVER THE NORTHEAST QUARTER...WHERE OLD
OUTFLOW BOUNDARIES AND 60S DEW POINT TEMPS EXIST. LOWER POPS ARE IN
ORDER FOR SUNDAY...ESPECIALLY ACROSS THE NORTH WHERE DRYING
ASSOCIATED WITH SUBSIDENCE FROM THE UPPER HIGH BUILDING OVER NM/CO
WILL PLAY A ROLE.

WILL GROUP MONDAY AND TUESDAY TOGETHER IN THE EXTENDED...WITH THE
UPPER HIGH DOMINATING...SHOULD BE WARMER AND LESS CONVECTIVE...EXCEPT
FOR THE USUAL MOUNTAIN STUFF. WILL ALSO GROUP WEDNESDAY THROUGH
FRIDAY...WITH THE UPPER HIGH BREAKING DOWN AND REGROUPING OVER
SOUTHERN NEVADA...WILL HAVE A N-NW FLOW ALOFT OVER NM WHICH WOULD
FAVOR MORE CONVECTION...MOVING OFF OF THE MOUNTAINS AND OVER LOWER
ELEVATION LOCATIONS. CA

ABQ EB 085/063 089/062 091 50342
SAF TB 079/056 083/055 086 50442
TCC TB 087/065 092/064 093 50532

.ABQ...NONE.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, Los Alamos

When: August 11, 11:40 AM MST
Where: Los Alamos County, Los Alamos
Property damage: $100,000
Reported by: EMERGENCY MANAGER
Coordinates: 35.869, -106.307 (the zone’s center; the record gives no point)

Brief heavy rain and strong runoff caused more damage to North Road in Los Alamos where recent drainage upgrades and repairs were washed away. North Road continues to suffer damage with such rapid and high runoff from the burned areas of Pueblo Canyon which have not recovered from last years Cerro Grande fire storm.

What these are

Flash Flood: Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

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

The same day elsewhere

More

Every storm in New Mexico in 2001 Every state in 2001 This day in weather history Warnings in New Mexico, August 2001

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 2026-09-24. Each event’s entry at NCEI: 5263411.