Salt Lake City, Utah
Regional Weather Alerts
| Alert: | Flood Watch |
| Area(s): | Wasatch Plateau/Book Cliffs; Western Millard and Juab Counties; Eastern Juab/Millard Counties; Sanpete Valley; Sevier Valley; Southwest Utah |
| Effective: | 2026-09-28 @ 1:24 am -> 2026-09-29 @ 1:30 am |
| Onset: | 2026-09-28 @ 7:00 am -> 2026-09-29 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Salt Lake City UT on 2026-09-28 @ 1:24 am |
| Headline: | Flood Watch issued September 28 at 12:24AM MDT until September 29 at 6:00AM MDT by NWS Salt Lake City UT |
| Description: |
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of Utah, including the following areas, Eastern Juab/Millard Counties, Sanpete Valley, Sevier Valley, Wasatch Plateau/Book Cliffs, Western Millard and Juab Counties and Southwest Utah. * WHEN...From 6 AM MDT this morning through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, dry washes, slot canyons, and other low-lying and flood-prone locations such as slickrock areas and recent burn scars. * ADDITIONAL DETAILS... - Deep tropical moisture will combine with an upper level low crossing the Desert Southwest to bring an increased threat of flash flooding through late tonight. Widespread rainfall totals of 0.75 to 1.75 inches, with locally higher amounts in excess of 2 inches will occur. - http://www.weather.gov/safety/flood |
| Alert: | Flood Watch |
| Area(s): | Central Mountains; Castle Country; San Rafael Swell; Southern Mountains; Upper Sevier River Valleys; Bryce Canyon Country |
| Effective: | 2026-09-28 @ 1:24 am -> 2026-09-29 @ 1:30 am |
| Onset: | 2026-09-28 @ 7:00 am -> 2026-09-29 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Salt Lake City UT on 2026-09-28 @ 1:24 am |
| Headline: | Flood Watch issued September 28 at 12:24AM MDT until September 29 at 6:00AM MDT by NWS Salt Lake City UT |
| Description: |
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of Utah, including the following areas, Castle Country, Central Mountains, San Rafael Swell, Bryce Canyon Country, Southern Mountains and Upper Sevier River Valleys. * WHEN...From 6 AM MDT this morning through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, dry washes, slot canyons, and other low-lying and flood-prone locations such as slickrock areas and recent burn scars including Cottonwood, Widemouth 2, France Canyon, Monroe Canyon, Forsyth, and Silver King. * ADDITIONAL DETAILS... - Deep tropical moisture will combine with an upper level low crossing the Desert Southwest to bring an increased threat of flash flooding through late tonight. Widespread rainfall totals of 0.75 to 1.75 inches, with locally higher amounts in excess of 2 inches will occur. - http://www.weather.gov/safety/flood |
| Alert: | Flood Watch |
| Area(s): | Lower Washington County; Zion National Park; South Central Utah; Capitol Reef National Park and Vicinity; Western Canyonlands; Glen Canyon Recreation Area/Lake Powell |
| Effective: | 2026-09-28 @ 1:24 am -> 2026-09-29 @ 1:30 am |
| Onset: | 2026-09-28 @ 7:00 am -> 2026-09-30 @ 1:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Salt Lake City UT on 2026-09-28 @ 1:24 am |
| Headline: | Flood Watch issued September 28 at 12:24AM MDT until September 30 at 12:00AM MDT by NWS Salt Lake City UT |
| Description: |
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of Utah, including the following areas, Capitol Reef National Park and Vicinity, Glen Canyon Recreation Area/Lake Powell, South Central Utah, Western Canyonlands, Lower Washington County and Zion National Park. * WHEN...From 6 AM MDT this morning through Tuesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, dry washes, slot canyons, and other low-lying and flood-prone locations such as slickrock areas and recent burn scars. * ADDITIONAL DETAILS... - Deep tropical moisture will combine with an upper level low crossing the Desert Southwest to bring an increased threat of flash flooding through Tuesday evening. Widespread rainfall totals of 1 to 2 inches, with locally higher amounts up to 3 inches will occur. - http://www.weather.gov/safety/flood |
| Alert: | Flood Watch |
| Area(s): | Uncompahgre Plateau/Dallas Divide; Northwestern San Juan Mountains; Southwest San Juan Mountains; Paradox Valley/Lower Dolores River; Four Corners/Upper Dolores River; Animas River Basin; San Juan River Basin; Southeast Utah; La Sal and Abajo Mountains; Canyonlands/Natural Bridges |
| Effective: | 2026-09-28 @ 12:27 am -> 2026-09-29 @ 12:30 am |
| Onset: | 2026-09-28 @ 7:00 am -> 2026-09-30 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Grand Junction CO on 2026-09-28 @ 12:27 am |
| Headline: | Flood Watch issued September 27 at 11:27PM MDT until September 30 at 6:00AM MDT by NWS Grand Junction CO |
| Description: |
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Colorado, including the following areas, Animas River Basin, Four Corners/Upper Dolores River, Northwest San Juan Mountains, Paradox Valley/Lower Dolores River, San Juan River Basin, Southwest San Juan Mountains and Uncompahgre Plateau and Dallas Divide and southeast Utah, including the following areas, Canyonlands/Natural Bridges, La Sal and Abajo Mountains and Southeast Utah. * WHEN...From 6 AM MDT Monday through 6 AM MDT Wednesday. * IMPACTS...Flooding will be possible over burn scars, at low-water crossings, and along creeks, streams, washes, arroyos and other flood-prone locations. Creeks and streams may rise out of their banks. Unpaved roads could become muddy and impassable. * ADDITIONAL DETAILS... - Periods of heavy rainfall, associated with remnant moisture from Hurricane Polo, are expected to produce numerous showers and embedded thunderstorms. Heavy rain falling on saturated soils and burn scars could lead to localized flash flooding and rises on local rivers. - http://www.weather.gov/safety/flood |
| Alert: | Hydrologic Outlook |
| Area(s): | Archuleta, CO; Dolores, CO; Gunnison, CO; Hinsdale, CO; La Plata, CO; Mesa, CO; Montezuma, CO; Montrose, CO; Ouray, CO; San Juan, CO; San Miguel, CO; Grand, UT; San Juan, UT |
| Effective: | 2026-09-27 @ 9:56 pm -> 2026-09-28 @ 7:00 pm |
| Onset: | 2026-09-27 @ 9:56 pm |
| Severity: | Unknown |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Grand Junction CO on 2026-09-27 @ 9:56 pm |
| Headline: | Hydrologic Outlook issued September 27 at 8:56PM MDT by NWS Grand Junction CO |
| Description: |
ESFGJT Strong southwesterly winds ahead of a closed low centered over California will pull tropical moisture from Tropical Storm Odalys and Hurricane Polo towards eastern Utah and western Colorado, with atmospheric moisture peaking in our area on Monday. The northerly extent of the expected excessive rainfall poses a threat to our southern San Juan river basins. Current forecasts suggest 1 to 4 inches of rain Monday morning through early Wednesday. At face value, rivers and tributaries will see a rise due to the forecast rainfall. However, localized heavier amounts could result in flooding across the southern San Juan foothills and communities further downstream. Rivers have responded rapidly to recent rainfall due to saturated soils and increased runoff potential. Thus, prolonged periods of additional rainfall over these regions would trigger a similar response. The current precipitation forecast suggests larger peaks in several creeks and rivers than what has been recently observed. However, high end probabilistic rainfall amounts (i.e. above 90th percentile) may lead to rivers exceeding action stage to minor flooding. Most probable basins to see significant rises include; the Rio Blanco, San Juan, Piedra, Los Pinos/Vallecito Creek, and the Animas River Basins. Convective storms and periods of heavy rainfall fed from said tropical moisture could result in localized flooding impacts across the CWA. However, confidence decreases rapidly north of the San Juans. Confidence has increased enough for a Flood Watch to be issued for southern portions of the forecast area valid from 6AM Monday through 6AM Wednesday. Continue to monitor the latest forecasts especially for those who reside and/or plan to recreate in the Watch areas. |
| Alert: | Hydrologic Outlook |
| Area(s): | Archuleta, CO; Dolores, CO; Gunnison, CO; Hinsdale, CO; La Plata, CO; Mesa, CO; Montezuma, CO; Montrose, CO; Ouray, CO; San Juan, CO; San Miguel, CO; Grand, UT; San Juan, UT |
| Effective: | 2026-09-27 @ 2:01 pm -> 2026-09-28 @ 4:15 pm |
| Onset: | 2026-09-27 @ 2:01 pm |
| Severity: | Unknown |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Grand Junction CO on 2026-09-27 @ 2:01 pm |
| Headline: | Hydrologic Outlook issued September 27 at 1:01PM MDT by NWS Grand Junction CO |
| Description: |
ESFGJT Strong southwesterly winds ahead of a closed low centered over California will pull tropical moisture from Tropical Storm Odalys and Hurricane Polo towards eastern Utah and western Colorado, with atmospheric moisture peaking in our area on Monday. The northerly extent of the expected excessive rainfall poses a threat to our southern San Juan river basins. Current forecasts suggest 1 to 4 inches of rain Monday morning through early Wednesday. At face value, rivers and tributaries will see a rise due to the forecast rainfall. However, localized heavier amounts could result in flooding across the southern San Juan foothills and communities further downstream. Rivers have responded rapidly to recent rainfall due to saturated soils and increased runoff potential. Thus, prolonged periods of additional rainfall over these regions would trigger a similar response. The current precipitation forecast suggests larger peaks in several creeks and rivers than what has been recently observed. However, high end probabilistic rainfall amounts (i.e. above 90th percentile) may lead to rivers exceeding action stage to minor flooding. Most probable basins to see significant rises include; the Rio Blanco, San Juan, Piedra, Los Pinos/Vallecito Creek, and the Animas River Basins. Convective storms and periods of heavy rainfall fed from said tropical moisture could result in localized flooding impacts across the CWA, however, confidence decreases rapidly north of the San Juans. Confidence has increased enough for a Flood Watch to be issued for southern portions of the forecast area valid from 6am Monday through 6am Wednesday. Continue to monitor the latest forecasts especially for those who reside and/or plan to recreate in the Watch areas. |
| Alert: | Hydrologic Outlook |
| Area(s): | Archuleta, CO; Dolores, CO; Gunnison, CO; Hinsdale, CO; La Plata, CO; Montezuma, CO; Ouray, CO; San Juan, CO; San Miguel, CO; Grand, UT; San Juan, UT |
| Effective: | 2026-09-25 @ 3:21 pm -> 2026-09-30 @ 7:00 am |
| Onset: | 2026-09-25 @ 3:21 pm |
| Severity: | Unknown |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Grand Junction CO on 2026-09-25 @ 3:21 pm |
| Headline: | Hydrologic Outlook issued September 25 at 2:21PM MDT by NWS Grand Junction CO |
| Description: |
ESFGJT In the wake of today's precipitation, our attention will turn to the Eastern Pacific. Tropical moisture is anticipated to spread across the Desert Southwest early next week, drawing moisture from a pair of Hurricanes; Odalys and Polo. The forecast becomes increasing complex due to a closed low currently forecast to drive across the Southwest CONUS as Hurricane Polo approaches the Baja California Peninsula. Strong southerly winds ahead of the low are expected to pull tropical moisture towards eastern Utah and western Colorado as early as Monday morning. The challenge and uncertainty in our precipitation forecast increase as the week progresses and the low traverses our southern States. Excessive rainfall is most probable over AZ and NM, attm, but the northerly extent poses a threat to our southern San Juan river basins. Current forecasts suggests 1 to 3 inches of rain over Monday morning through Wednesday. At face value, rivers and tributaries will see a bump up due to said moisture. However, localized heavier amounts could result in minor flooding across the southern San Juan foothills and communities further downstream. Rivers have responded rapidly to recent rainfall due to saturated soils and increased runoff potential. Thus, prolonged periods of additional rainfall over these regions would trigger a similar response. The current precipitation forecast suggests larger peaks in several creeks and rivers than what has been observed over the previous 7 days. However, high end probabilistic rainfall amounts (i.e. above 90th percentile) may lead to rivers exceeding action stage to minor flooding. Most probable basins to see significant rises include; the Rio Blanco, San Juan, Piedra, Los Pinos/Vallecito Creek, and the Animas River Basins. Convective storms and periods of heavy rainfall fed from said tropical moisture could result in localized flooding impacts across the CWA, however, confidence decreases rapidly north of the San Juans. Please continue to monitor the forecast as these systems evolve. Especially for those who reside and/or plan to recreate in the southwest quadrant of the forecast area. |
