Severe

Significant threat to life or property

Iowa Severe Flood Warning | Effective 09/17/2026 01:37

* WHAT...Small stream flooding caused by excessive rainfall continues. * WHERE...Southeastern Fremont County in southwestern Iowa... West Central Page County in southwestern Iowa... * WHEN...Until 645 AM CDT. * IMPACTS...Flooding of the East Nishnabotna River at Riverton along 250th Street west of Riverton and other low-lying areas near and north of Riverton along the river. * ADDITIONAL DETAILS... - At 337 AM CDT, Recent heavy rain in the warned area has caused

New Mexico Severe Flood Watch | Effective 09/17/2026 01:24

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of central and west central New Mexico, including the following areas, in central New Mexico, San Agustin Plains and Adjacent Lowlands. In west central New Mexico, San Francisco River Valley, Southwest Mountains, West Central Highlands, West Central Mountains and West Central Plateau. * WHEN...Until 6 AM MDT early this morning. * IMPACTS...Excessive runoff may result in flooding of creeks,

New Mexico Severe Flood Watch | Effective 09/17/2026 01:24

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...A portion of north central New Mexico, including the following areas, Espanola Valley and Southern Sangre de Cristo Mountains. * WHEN...From 11 AM MDT this morning through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Additional rounds of showers and storms are likely again

New Mexico Severe Flood Watch | Effective 09/17/2026 01:24

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...A portion of north central New Mexico, including the Sangre de Cristo Mountains, Tusas Mountains, Jemez Mountains, and Santa Fe. * WHEN...From 11 AM MDT this morning through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Additional rounds of showers and storms are likely Thursday

New Mexico Severe Flood Watch | Effective 09/17/2026 01:24

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...A portion of north central New Mexico, including the following areas, Espanola Valley and Southern Sangre de Cristo Mountains. * WHEN...From 11 AM MDT this morning through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Additional rounds of showers and storms are likely again

New Mexico Severe Flood Watch | Effective 09/17/2026 01:24

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Northwest New Mexico and the South Central Mountains, including Farmington, Shiprock, and the Ruidoso area burn scars. * WHEN...From 11 AM MDT this morning through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Additional rounds of showers and storms are likely Thursday afternoon through the overnight hours. Rainfall rates of 1 to 2

New Mexico Severe Flood Watch | Effective 09/17/2026 01:24

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Northwest New Mexico and the South Central Mountains, including Farmington, Shiprock, and the Ruidoso area burn scars. * WHEN...From 11 AM MDT this morning through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Additional rounds of showers and storms are likely Thursday afternoon through the overnight hours. Rainfall rates of 1 to 2

Arizona Severe Flood Warning | Effective 09/17/2026 00:49

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Maricopa County in south central Arizona... * WHEN...Until 300 AM MST. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. It will take several hours for all the water from these storms to work through local drainage systems in urban areas. * ADDITIONAL DETAILS... - At 1249 AM MST, gauge reports indicated heavy rain due to thunderstorms. Flooding is already occurring in the warned area.

Idaho Severe Severe Thunderstorm Warning | Effective 09/17/2026 00:20

The storms which prompted the warning have weakened below severe limits, and no longer pose an immediate threat to life or property. Therefore, the warning will be allowed to expire. When safe to do so, please relay storm reports to the National Weather Service in Boise via local law enforcement, or National Weather Service Boise Facebook and Twitter accounts.

Arizona Severe Flood Warning | Effective 09/17/2026 00:22

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Maricopa County in south central Arizona... * WHEN...Until 245 AM MST. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Low-water crossings are inundated with water and may not be passable. * ADDITIONAL DETAILS... - At 1222 AM MST, gauge reports indicated heavy rain due to thunderstorms. Flooding is already occurring in the warned area.
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