Heavy Rainfall & Winds Associated With the Remnants of Rachel
Oct 11–12, 2026 · WPC Storm Summaries · Ended
- Arizona
- California
- Nevada
- Utah
Summaries
3 summaries
First Oct 11, 09:31 PM UTC · latest Oct 12, 03:10 PM UTC
Source
NOAA Weather Prediction Center
Station values in WPC's text are preliminary
WPC outlooks as they stood at each summary
Not captured: this event's summaries were imported from the archive after they were issued, so the outlooks in effect at the time were not recorded. Events summarised since show the Excessive Rainfall Outlook and WSSI ice impacts as they stood at each summary.
Storm summaries
Summary #3 · final
Oct 12, 03:10 PM UTC
Locally heavy showers and thunderstorms continue across portions of the Great Basin with a risk for scattered flash flooding
Full text
ACUS42 KWBC 121510 SCCNS2 Storm Summary Number 3 for Heavy Rainfall & Winds Associated With the Remnants of Rachel NWS Weather Prediction Center College Park MD 800 AM PDT Mon Oct 12 2026 ...Locally heavy showers and thunderstorms continue across portions of the Great Basin with a risk for scattered flash flooding... Flood Watches are in effect for much of the Great Basin. For a detailed graphical depiction of the latest watches, warnings and advisories, please see www.weather.gov At 700 AM PDT...A low pressure center was analyzed along the California/Nevada border south of Reno with a pressure of 1002 mb, or 29.59 inches of mercury. An occluded front extended just to the southeast with a quasi-stationary boundary to the northeast through east-central Nevada into northern Utah and an arcing cold front to the south through southern Nevada and western Utah. Radar observations indicated ongoing showers and thunderstorms along and ahead of these boundaries, also supported aloft by a deep upper-low. ...Selected preliminary Storm Total Rainfall in inches from 700 AM PDT Fri Oct 09 through 700 AM PDT Mon Oct 12... ...ARIZONA... TOWERS MOUNTAIN 6.02 MOUNT UNION 4.79 SNOWSLIDE CANYON 3.90 WATERLINE ROAD 1 3.39 HUALAPAI PEAK 3 S 3.30 MOSS BASIN 3.30 BAKER BUTTE 3.20 WEST FLASGSTAFF 3.02 FLAGSTAFF 2.77 BLACK ROCK 2.67 KINGMAN 2.34 ...NEVADA... WHEELER PEAK 3.40 BRISTLECONE TRAIL 3.10 LAS VEGAS 3.00 UPPER KYLE CANYON 2.78 MT. CHARLESTON 3.7 NW 2.70 SPARKILL 2.51 MT. POTOSI 4 NNW 2.31 PIOCHE 2.23 SUMMERLIN 1.94 ENTERPRISE 1 NW 1.50 PAHRUMP 1.0 NW 1.50 ...UTAH... FORSYTH BURN SCAR 5.02 PINE VALLEY 4.93 GARDNER PEAK 4.70 GUTZ PEAK 3.90 TIMPAGONOS DIVIDE 3.60 LAVA POINT 3.54 ALTA 3.50 ATWATER 3.50 LAVA POINY 3.23 CEDAR CITY 18 SSE 2.90 SR-12 BOULDER SUMMIT 2.86 HORSE RIDGE 2.84 SNOWBASIN BASE 2.74 BUCKBOARD FLAT 2.70 ASH CREEK 2.35 ...Selected preliminary Peak Wind gusts in miles per hour earlier in the event... ...ARIZONA... KINGMAN 1 WSW 65 TUSCON INTL ARPT 58 BISBEE 54 DAVIS MOUTNAIN AFB 46 HUACHUCA CITY 5 WSW 46 BUENOS AIRES NTL WILDLIFE REFUGE 45 SONOITA 44 NOGALES INTL ARPT 40 ...CALIFORNIA... CRESTWOOD 62 SILVERWOOD WEST 62 HIGHLAND SPRINGS 59 HAUSER MOUNTAIN 58 APLINE 56 HEMET 3 WSW 54 APPLE VALLEY ARPT 53 BURNS CANYON 53 ...UTAH... ENTERPRISE 5 SE 97 CHEPETA 94 BURNTFORK 16 S 91 WINDY PEAK 81 MINERSVILLE 9 SW 79 BRIAN HEAD 76 BRIAN HEAD 3 S 76 CENTRAL WASATCH PEAKS 76 SNOWBIRD 1 S 76 LOGAN PEAK 74 SOUTH MOUNTAIN 72 HAMILTON FORT 1 E 71 BOULDER 10 NE 69 ROCKY QD 69 HITE MARINA 18 NE 68 ...Selected preliminary Storm Total Rainfall in inches where the event has ended... ...CALIFORNIA... PALOMAR CRS 6.20 BIRCH HILL 5.73 RUNNING SPRINGS 4.90 VISTA GRANDE 4.90 RAWS TEENY PEBBLE CLIMATOLOGY 4.69 ANGELES HILL 4.49 HEAPS PEAK 4.45 RAWS LOWER OAT FLATS 4.30 ALLANDALE 4.17 MESA GRANDE 4.00 RILEY FAMILY WEATHER 3.77 YELLOW POST 3.27 MILL CREEK 3.20 SEVEN OAKS DAM 3.12 CACTUS CITY 3.11 SAN JACINTO NORTH 3.00 ELDER CREEK 2.95 TEMECULA 2.28 MT BALDY 2.09 TWENTYNINE PALMS 2.08 Lift associated with the deep upper-low and lingering moisture will continue to lead to thunderstorms with locally heavy rainfall across portions of the Great Basin today, though with the upper-low now mainly providing the impetus for storms rather than an association with the remnants of Rachel. There is a Slight Risk Excessive Rainfall Outlook in effect Monday for the risk of scattered flash flooding, primarily for terrain sensitive areas such as burn scars and within slot canyons. Storms will start taper off Tuesday as the upper-energy begins to shift eastward and conditions begin to dry out, though a lingering isolated flash flood threat will remain for portions of western and northern Utah. This will be the last Storm Summary issued by the Weather Prediction Center for this event. Please refer to your local National Weather service office for additional information. Putnam $$
Summary #2
Oct 12, 03:00 AM UTC
Locally heavy showers and thunderstorms are occurring across portions of the Great Basin and Four Corners region with an isolated to scattered flash flooding risk
Full text
ACUS42 KWBC 120300 SCCNS2 Storm Summary Number 2 for Heavy Rainfall & Winds Associated With the Remnants of Rachel NWS Weather Prediction Center College Park MD 800 PM PDT Sun Oct 11 2026 ...Locally heavy showers and thunderstorms are occurring across portions of the Great Basin and Four Corners region with an isolated to scattered flash flooding risk... Wind Advisories are in effect for much of the Great Basin, Four Corners Region, and Desert Southwest. Flood Watches are in effect for much of the Great Basin. For a detailed graphical depiction of the latest watches, warnings and advisories, please see www.weather.gov At 700 PM PDT...A 996 mb (29.41 in Hg) surface low associated with the remnants of Rachel is moving northward into southwestern Wyoming. A stationary front is analyzed across the upper Mountain West with an attendant cold front pushing eastward across the Great Basin ahead of a broader upper trough moving across the West. NWS radar indicates waning showers and isolated thunderstorms across the Great Basin and Four Corners region, though a moisture plume is still present across Utah where there is a greater coverage of rainfall. ...Selected preliminary Storm Total Rainfall in inches from 700 AM PDT Fri Oct 09 through 700 PM PDT Sun Oct 11... ...ARIZONA... TOWERS MOUNTAIN 6.02 MOUNT UNION 4.79 SNOWSLIDE CANYON 3.90 WATERLINE ROAD 1 3.39 MOSS BASIN 3.30 BAKER BUTTE 3.20 WEST FLASGSTAFF 3.02 FLAGSTAFF 2.77 ...CALIFORNIA... PALOMAR CRS 5.16 BIRCH HILL 4.80 VISTA GRANDE 4.13 RAWS HEAPS PEAK 3.79 RAWS ANGELES HILL 3.74 ALLANDALE 3.62 LOWER OAT FLATS 3.46 CATCUS CITY 3.11 ELDER CREEK 2.91 SAN JACINTO NORTH 2.60 ...NEVADA... WHEELER PEAK 3.40 BRISTLECONE TRAIL 3.10 LAS VEGAS FW 3806 2.99 UPPER KYLE CANYON 2.78 ...UTAH... FORSYTH BURN SCAR 5.02 PINE VALLEY 4.93 GARDNER PEAK 4.70 GUTZ PEAK 3.90 TIMPAGONOS DIVIDE 3.60 ATWATER 3.50 LAVA POINY 3.23 CEDAR CITY 18 SSE 2.90 SR-12 BOULDER SUMMIT 2.86 BUCKBOARD FLAT 2.70 ...Selected preliminary Peak Wind gusts in miles per hour earlier in the event... ...ARIZONA... KINGMAN 1 WSW 65 TUSCON INTL ARPT 58 DAVIS MOUTNAIN AFB 46 HUACHUCA CITY 5 WSW 46 BUENOS AIRES NTL WILDLIFE REFUGE 45 SONOITA 44 NOGALES INTL ARPT 40 ...CALIFORNIA... CRESTWOOD 59 HIGHLAND SPRINGS 59 SILVERWOOD WEST 59 HAUSER MOUNTAIN 58 APLINE 56 HEMET 3 WSW 54 APPLE VALLEY ARPT 53 BURNS CANYON 53 ...UTAH... ENTERPRISE 5 SE 97 BURNTFORK 16 S 91 MINERSVILLE 9 SW 79 BRIAN HEAD 3 S 76 SNOWBIRD 1 S 76 HAMILTON FORT 1 E 71 BOULDER 10 NE 69 HITE MARINA 18 NE 68 ...Selected preliminary Storm Total Rainfall in inches where the event has ended... ...CALIFORNIA... RUNNING SPRINGS 4.90 TEENY PEBBLE CLIMATOLOGY 4.69 HEAPS PEAK 3.90 RILEY FAMILY WEATHER 3.77 MESA GRANDE 3.40 YELLOW POST 3.27 MILL CREEK 3.20 SEVEN OAKS DAM 3.12 Tropical moisture transport ahead of an amplified mid-level upper-trough and a cold front at the surface will lead to locally heavy showers and thunderstorms throughout the Great Basin/Four Corners Region and portions of the Desert Southwest for Monday. There is a Slight Risk Excessive Rainfall Outlook in effect with the continued risk of scattered flash flooding, primarily over burn scars and within slot canyons. Rainfall from the remnants of Rachel has saturated the soils as well, which will help contribute to the potential for flash flooding. Storms will start to taper off by Tuesday as conditions begin to dry out with a lingering isolated flash flood threat for portions of western and northern Utah. The next Storm Summary will be issued by the Weather Prediction Center at 800 AM PDT. Please refer to your local National Weather Service office for additional information on this event. Wilder $$
Summary #1
Oct 11, 09:31 PM UTC
Heavy rainfall and scattered flash flooding continue over the Great Basin to Desert Southwest associated with remnant moisture from Rachel
Full text
ACUS42 KWBC 112131 SCCNS2 Storm Summary Number 1 for Heavy Rainfall & Winds Associated With the Remnants of Rachel NWS Weather Prediction Center College Park MD 200 PM PDT Sun Oct 11 2026 ...Heavy rainfall and scattered flash flooding continue over the Great Basin to Desert Southwest associated with remnant moisture from Rachel... Wind Advisories are in effect for much of the Great Basin, Four Corners Region, and Desert Southwest. Flood Watches are in effect for much of the Great Basin. For a detailed graphical depiction of the latest watches, warnings and advisories, please see www.weather.gov At 100 PM PDT...A front that has become quasi-stationary was analyzed from northern Utah southwest through central to western Nevada and then south through southern California. Radar observations indicated widespread thunderstorms ahead of this front from northern Utah south into Arizona and west towards the Colorado River Valley. Anomalously high moisture from the remnants of Rachel as well as upslope enhanced flow along the more complex terrain of the Southwest is contributing to locally heavy rainfall. ...Selected preliminary Storm Total Rainfall in inches from 700 AM PDT Fri Oct 09 through 100 PM PDT Sun Oct 11... ...ARIZONA... KINGMAN 6.7 NNE 1.84 TOWERS MOUNTAIN 1.75 AZ ALERT WILLIAMS 0.4 SW 1.38 LAKE HAVASU CITY 2.0 S 1.37 ...CALIFORNIA... PALOMAR CRS 5.16 BIRCH HILL 4.80 VISTA GRANDE 4.13 RAWS HEAPS PEAK 3.79 RAWS ANGELES HILL 3.74 ALLANDALE 3.62 LOWER OAT FLATS 3.46 CATCUS CITY 3.11 ELDER CREEK 2.91 SAN JACINTO NORTH 2.60 SAN JUAN GUARD 2.17 OCEANSIDE 1.79 TEMECULA 1.77 THERMAL ARPT 1.71 ...NEVADA... LAS VEGAS 4.7 WNW 2.21 SANDY VALLEY 3.1 ESE 1.68 ...UTAH... AGUA CANYON 1.50 FORSYTH BURN SCAR 1.41 HADS ...Selected preliminary Peak Wind gusts in miles per hour earlier in the event... ...ARIZONA... KINGMAN 1 WSW 65 TUSCON INTL ARPT 58 DAVIS MOUTNAIN AFB 46 HUACHUCA CITY 5 WSW 46 BUENOS AIRES NTL WILDLIFE REFUGE 45 SONOITA 44 NOGALES INTL ARPT 40 ...CALIFORNIA... CRESTWOOD 59 HIGHLAND SPRINGS 59 SILVERWOOD WEST 59 HAUSER MOUNTAIN 58 APLINE 56 HEMET 3 WSW 54 APPLE VALLEY ARPT 53 BURNS CANYON 53 ...UTAH... ENTERPRISE 5 SE 97 BURNTFORK 16 S 91 MINERSVILLE 9 SW 79 BRIAN HEAD 3 S 76 SNOWBIRD 1 S 76 HAMILTON FORT 1 E 71 BOULDER 10 NE 69 HITE MARINA 18 NE 68 The amplifying upper-trough and front will continue to lead to thunderstorms throughout the Great Basin/Four Corners Region and portions of the Desert Southwest through the next couple of days. The remnant moisture from Rachel will help contribute to efficient, locally heavy downpours with a risk for flash flooding. A Moderate Risk of Excessive Rainfall (level 3/4) remains in effect for portions of southern Nevada, far southwestern Utah, and far northwestern Arizona where scattered to widespread flash flooding is possible. A broader Slight Risk is in place throughout the region for more scattered instances of flash flooding. There is a Slight Risk for portions of the Great Basin into the Desert Southwest Monday for the continued risk of scattered flash flooding. Storms will start to taper off by Tuesday as conditions begin to dry out with a lingering isolated flash flood threat for portions of western and northern Utah. Storms will come to an end into Wednesday as the upper-energy finally shifts eastward towards the Plains. The next Storm Summary will be issued by the Weather Prediction Center at 800 PM PDT. Please refer to your local National Weather Service office for additional information on this event. Putnam $$
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Text: NOAA/NWS Weather Prediction Center Storm Summaries, shown verbatim. Grouping the summaries into one event, the outlook copies and the links are Stormlio's; WPC issues no event id. Station values are preliminary; the official record is NCEI Storm Data.