New Mexico alerts

San Juan County, New Mexico weather alerts

1 National Weather Service alert is in force for San Juan County: a flood watch.

Checked Mon, Sep 21, 2026, 12:38 PM MDT. Times are Mountain Daylight Time.

San Juan County forecastLive radar here

Warnings on the map

Every watch, warning and advisory the National Weather Service has in force over San Juan County, New Mexico. Open it for the live map, where it pans and zooms.

Every watch, warning and advisory the National Weather Service has in force over San Juan County, New Mexico Open the live map with warnings and watches

Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.

Alerts in force1

Every product in force for San Juan County, worst first, with its full text.

Flood Watch

Severe

Flood Watch issued September 21 at 1:02AM MDT until September 23 at 6:00PM MDT by NWS Albuquerque NM

Begins Until 2 days left

Areas Northwest Highlands, NM; West Central Mountains, NM; West Central Highlands, NM; Southwest Mountains, NM; Jemez Mountains, NM; Glorieta Mesa Including Glorieta Pass, NM; Southern Sangre de Cristo Mountains, NM; East Slopes Sangre de Cristo Mountains, NM; Espanola Valley, NM; Santa Fe Metro Area, NM; Middle Rio Grande Valley/Albuquerque Metro Area, NM; Lower Rio Grande Valley, NM; Sandia/Manzano Mountains Including Edgewood, NM; Estancia Valley, NM; Central Highlands, NM; South Central Highlands, NM; Upper Tularosa Valley, NM; South Central Mountains, NM; Far Northeast Highlands, NM; Northeast Highlands, NM; Harding County, NM; Eastern San Miguel County, NM; Guadalupe County, NM; De Baca County, NM; Chaves County Plains, NM; Eastern Lincoln County, NM; Southwest Chaves County, NM; San Agustin Plains and Adjacent Lowlands, NM

Full text

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of central, east central, north central, northeast, southeast, and west central New Mexico, including the following areas, in central New Mexico, Central Highlands, Eastern Lincoln County, Estancia Valley, Lower Rio Grande Valley, Middle Rio Grande Valley including the Albuquerque Metro Area, San Agustin Plains and Adjacent Lowlands, Sandia and Manzano Mountains including Edgewood, South Central Highlands, South Central Mountains and Upper Tularosa Valley. In east central New Mexico, De Baca County and Guadalupe County. In north central New Mexico, East Slopes Sangre de Cristo Mountains, Espanola Valley, Glorieta Mesa Including Glorieta Pass, Jemez Mountains, Northwest Highlands, Santa Fe Metro Area and Southern Sangre de Cristo Mountains. In northeast New Mexico, Eastern San Miguel County, Far Northeast Highlands, Harding County and Northeast Highlands. In southeast New Mexico, Chaves County Plains and Southwest Chaves County. In west central New Mexico, Southwest Mountains, West Central Highlands and West Central Mountains. * WHEN...From Tuesday afternoon through Wednesday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. Storm drains and ditches may become clogged with debris. Extensive street flooding and flooding of creeks and rivers are possible. * ADDITIONAL DETAILS... - A dangerous surge of monsoon moisture will arrive Tuesday and Wednesday with widespread heavy rain. Scattered occurrences of flash flooding are likely, and there will probably be some main stem river and tributary flooding, as the most likely rain amount by Wednesday afternoon exceeds 2 inches in many locations along and east of the central mountain chain, and 1 inch in many locations westward to the continental divide. Stronger storms will produce torrential rainfall at rates over 2 inches per hour, and storms will train repeatedly in succession over some locations, with locally heavier rain amounts reaching 4 to 6 inches over portions of central and eastern New Mexico. Heavy rain will likely continue Wednesday night over eastern areas, then showers and storms with locally heavy rainfall are forecast to return along and east of the continental divide again on Thursday. - Rapid runoff and flash flooding will be most likely in complex terrain, below recent burn scars, low-lying areas, urban areas, normally dry arroyos, and near rivers and streams. As the event unfolds, locations with saturated ground will also become prone to rapid runoff and flash flooding from additional rounds of storms. - http://www.weather.gov/safety/flood

What to do

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. Never drive through flood waters. Most flash flood deaths occur in automobiles.

NWS Albuquerque NMShare this alert

The past year in San Juan County

In the past year the National Weather Service issued 110 alerts for San Juan County, including 13 red flag warnings, 8 flash flood warnings, 6 severe thunderstorm warnings and 4 freeze warnings.

ProductIssuedMost recent
Red Flag Warning13Jun 30, 2026
Flash Flood Warning8Sep 18, 2026
Severe Thunderstorm Warning6Sep 18, 2026
Freeze Warning4May 7, 2026
Snow Squall Warning4Feb 20, 2026
Flood Warning1Sep 18, 2026
Winter Storm Warning1Jan 7, 2026
Fire Weather Watch13Jun 30, 2026
Flood Watch10Sep 22, 2026
Freeze Watch4May 7, 2026
Flood Advisory18Sep 18, 2026
Heat Advisory15Aug 10, 2026
Winter Weather Advisory6Feb 19, 2026
Wind Advisory4Jun 28, 2026
Dense Fog Advisory2Jan 2, 2026
Dust Storm Advisory1Jul 20, 2026

Warnings issued

  1. Severe Thunderstorm Warning
  2. Flood Warning
  3. Severe Thunderstorm Warning
  4. Flash Flood Warning
  5. Severe Thunderstorm Warning
  6. Flash Flood Warning
  7. Flash Flood Warning
  8. Flash Flood Warning
  9. Flash Flood Warning
  10. Flash Flood Warning
  11. Flash Flood Warning
  12. Red Flag Warning
  13. Red Flag Warning
  14. Red Flag Warning
  15. Flash Flood Warning
  16. Severe Thunderstorm Warning
  17. Severe Thunderstorm Warning
  18. Severe Thunderstorm Warning
  19. Red Flag Warning
  20. Red Flag Warning
  21. Red Flag Warning
  22. Red Flag Warning
  23. Red Flag Warning
  24. Red Flag Warning
  25. Red Flag Warning
  26. Red Flag Warning
  27. Freeze Warning
  28. Red Flag Warning
  29. Freeze Warning
  30. Freeze Warning
  31. Red Flag Warning
  32. Snow Squall Warning
  33. Snow Squall Warning
  34. Snow Squall Warning
  35. Snow Squall Warning
  36. Winter Storm Warning
  37. Freeze Warning
Every alert, most recent first
  1. Flood Watch
  2. Severe Thunderstorm Warning
  3. Flood Advisory
  4. Flood Warning
  5. Severe Thunderstorm Warning
  6. Flood Advisory
  7. Flash Flood Warning
  8. Severe Thunderstorm Warning
  9. Flood Advisory
  10. Flood Watch
  11. Flood Watch
  12. Flood Advisory
  13. Flood Advisory
  14. Flash Flood Warning
  15. Flash Flood Warning
  16. Flood Advisory
  17. Flood Advisory
  18. Flood Watch
  19. Flood Advisory
  20. Flood Advisory
  21. Flood Advisory
  22. Flood Advisory
  23. Flood Advisory
  24. Flood Watch
  25. Heat Advisory
  26. Heat Advisory
  27. Heat Advisory
  28. Heat Advisory
  29. Heat Advisory
  30. Heat Advisory
  31. Heat Advisory
  32. Heat Advisory
  33. Heat Advisory
  34. Heat Advisory
  35. Heat Advisory
  36. Heat Advisory
  37. Flood Watch
  38. Flood Advisory
  39. Flash Flood Warning
  40. Flash Flood Warning

The 40 most recent of 110.

From the Iowa Environmental Mesonet’s archive of NWS watches, warnings and advisories (VTEC), by the county’s own code and the forecast zones inside it. Each date links to the event at the IEM.

Nearby

The counties around San Juan County, with what is in force in each.

What this means

Warning
The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
Watch
Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
Advisory
A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
Statement
Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.

Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.

Sources

Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.