Alert archive / Utah / Flash Flood Warnings in 2026
Flash Flood Warning 50, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Jul 23, 2026, 6:37 PM MDT for Washington County, Utah. It was in force for 3 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 23, 2026, 6:37 PM MDT (00:37 UTC)
- Expired
- Jul 23, 2026, 9:45 PM MDT
- In force
- 3 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
County Washington County, UT
The radar
The Cedar City radar (KICX), 65 km from the middle of the area, began a volume at 00:41 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 23, 8:09 PM MDT | FLASH FLOOD | 3 Sse Pine Vly, UT | USGS stream gauge on the Santa Clara river showed a minor flash flood spike from the Forsyth Burn Scar. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this flash flood warning; the first came 92 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 0.6 hours before the alert went out and 286 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 512 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 1694 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
618
WGUS55 KSLC 240037
FFWSLC
UTC053-240345-
/O.NEW.KSLC.FF.W.0050.260724T0037Z-260724T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Salt Lake City UT
637 PM MDT Thu Jul 23 2026
The National Weather Service in Salt Lake City has issued a
* Flash Flood Warning for...
The Forsyth Burn Scar in...
Central Washington County in southwestern Utah...
* Until 945 PM MDT.
* At 637 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain over the Forsyth Burn Scar. Between 0.5 and 0.75 inches
of rain have fallen. Additional rainfall amounts up to 0.25 inches
are possible in the warned area. Flash flooding is ongoing or
expected to begin shortly.
Excessive rainfall over the burn scar will result in debris flow
moving through the Santa Clara River and its tributaries. The debris
flow can consist of rock, mud, vegetation and other loose materials.
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding in and around the Forsyth
Burn Scar and along the Santa Clara downstream to just
below Baker Reservoir.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of areas in and around
the Forsyth Burn Scar downstream to just below the
Baker Reservoir.
* Some locations that will experience flash flooding include...
Veyo.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a life threatening situation. Heavy rainfall will cause
extensive and severe flash flooding of creeks...streams...and
ditches in the Forsyth Burn Scar. Severe debris flows can also be
anticipated across roads. Roads and driveways may be washed away in
places. If you encounter flood waters...climb to safety.
Move to higher ground now. Act quickly to protect your life.
Stay away or be swept away. River banks and culverts can become
unstable and unsafe.
&&
LAT...LON 3734 11351 3739 11352 3740 11354 3741 11358
3739 11362 3734 11367 3735 11368 3740 11363
3742 11361 3742 11353 3741 11351 3742 11346
3737 11342 3735 11345
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
GM2 follow-up statements
644
WGUS75 KSLC 240209
FFSSLC
Flash Flood Statement
National Weather Service Salt Lake City UT
809 PM MDT Thu Jul 23 2026
UTC053-240345-
/O.CON.KSLC.FF.W.0050.000000T0000Z-260724T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Washington UT-
809 PM MDT Thu Jul 23 2026
...FLASH FLOOD WARNING FOR THE FORSYTH BURN SCAR REMAINS IN EFFECT
UNTIL 945 PM MDT THIS EVENING FOR CENTRAL WASHINGTON COUNTY...
At 809 PM MDT, Doppler radar indicated thunderstorms producing heavy
rain over the Forsyth Burn Scar. Between 0.5 and 0.75 inches of rain
have fallen. Flash flooding is ongoing.
Excessive rainfall over the burn scar resulted in a modest bump on
the Santa Clara river gauge causing debris flow moving through the
Santa Clara River and its tributaries. The debris flow can consist
of rock, mud, vegetation and other loose materials.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding in and around the Forsyth Burn Scar.
SOURCE...Radar and automated gauges.
IMPACT...Life threatening flash flooding of areas in and around
the Forsyth Burn Scar.
Some locations that will experience flash flooding include...
Veyo.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a life threatening situation. Heavy rainfall will cause
extensive and severe flash flooding of creeks...streams...and
ditches in the Forsyth Burn Scar. Severe debris flows can also be
anticipated across roads. Roads and driveways may be washed away in
places. If you encounter flood waters...climb to safety.
Move to higher ground now. Act quickly to protect your life.
Stay away or be swept away. River banks and culverts can become
unstable and unsafe.
&&
LAT...LON 3734 11351 3739 11352 3740 11354 3741 11358
3739 11362 3734 11367 3735 11368 3740 11363
3742 11361 3742 11353 3741 11351 3742 11346
3737 11342 3735 11345
FLASH FLOOD...RADAR AND GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
HM744
WGUS75 KSLC 240340
FFSSLC
Flash Flood Statement
National Weather Service Salt Lake City UT
940 PM MDT Thu Jul 23 2026
UTC053-240350-
/O.EXP.KSLC.FF.W.0050.000000T0000Z-260724T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Washington UT-
940 PM MDT Thu Jul 23 2026
...FLASH FLOOD WARNING FOR THE FORSYTH BURN SCAR WILL EXPIRE AT 945
PM MDT THIS EVENING FOR CENTRAL WASHINGTON COUNTY...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
&&
LAT...LON 3734 11351 3739 11352 3740 11354 3741 11358
3739 11362 3734 11367 3735 11368 3740 11363
3742 11361 3742 11353 3741 11351 3742 11346
3737 11342 3735 11345
$$
HMWhat forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Salt Lake City, UT wrote its last area forecast discussion before this flash flood warning went out at Jul 23, 1:36 PM MDT, 5 hours 1 minute earlier.
Area forecast discussion, Jul 23, 1:36 PM MDT, 5 hours 1 minute before
Area Forecast Discussion
National Weather Service Salt Lake City UT
136 PM MDT Thu Jul 23 2026
.KEY MESSAGES, Issued 1006 PM MDT Wed Jul 22 2026...
- Drier air moves in tomorrow, limiting chances for afternoon
showers and thunderstorms across northern Utah, with modest
potential continuing across southern and central Utah.
- Southerly flow redeveloping Friday will allow monsoonal moisture
to gradually fill back in statewide through the weekend, with an
increasing flash flood threat returning as a result.
- Heat concerns return to Utah starting this Friday, lasting through
at least Monday as temperatures rise across the region with
anomalously warm overnight temperatures offering little relief.
&&
.DISCUSSION...Despite PWATs dipping across the area this
afternoon, ample moisture remains in the lower levels with
sufficient dynamics for afternoon convection in place. Storm
coverage will be more isolated in nature than past days, and
mainly favoring southern Utah and far eastern Utah. Upper level
flow remains lethargic, allowing storms that form along terrain to
drift slowly and produce locally heavy rainfall and potentially
impactful short-term accumulations.
This drier airmass will be short lived as a shortwave trough
quickly ejects into the Central Plains Friday and shifts the ridge
axis back into a better position to drive moisture well into
northern parts of Utah and southwestern Wyoming. With that,
probabilities increase for more widespread showers and
thunderstorms, though the highest chances both for initiation and
precipitation intensity are over central and southern Utah. As
such, these areas are being highlighted for a heightened flash
flood risk, with the collaborated Excessive Rainfall Outlook (ERO)
incorporating areas generally east of I-15 and south of I-70 into
a Marginal Risk (level 1/4) for excessive rainfall. The axis of
this broad ridge gradually shifts back eastward through the
weekend into early next week, resulting in continued monsoonal
moisture transport through this period that will bring continued
chances for afternoon showers and thunderstorms capable of
producing flash flooding each day.
In addition to a return to wetter conditions, this pattern
will bring an increase in temperatures especially across northern
Utah Friday into the weekend as the ridge not only shifts but
H5 heights continue to climb as the ridge amplifies. Daytime
highs soar back to the century mark for many locations across the
Wasatch Front, with overnight lows in the mid to upper 70s
offering very little relief. As such, widespread Major HeatRisk
emerges through this period, indicating an elevated threat for
heat illness especially for those without adequate cooling and
hydration. Areas where cloud cover and remnant surface moisture
will see the least overnight cooling, and there is indication that
some areas with lows sitting around 80F could reach Extreme
HeatRisk (~20% chance). If outdoors for festivities this weekend,
make sure to stay hydrated and take breaks in the shade or air
conditioning often.
&&
.AVIATION, Issued 1243 PM MDT Thu Jul 23 2026...
KSLC...Diurnal winds are forecast to persist at the KSLC terminal
through the period with northwest winds building in currently. The
next wind shift to southerly is expected around 04z.
REST OF UTAH AND SOUTHWEST WYOMING...Generally diurnal winds are
forecast across all sites through the TAF period. KCDC is forecast
to retain daily thunderstorm potential in the afternoon hours,
tapering off around 6PM/00z as reflected by the PROB30.
&&
.FIRE WEATHER...Moisture has pulled back to the south and east today,
limiting the spatial extent of the showers and thunderstorms
expected. However, terrain will help with initiation across
southern and central Utah, and slow upper level flow will allow
these storms to drift slowly and increase the chances of wetting
rains with the stronger cells. This drying will also increase the
threat for outflow winds, with storms capable of producing erratic
gusts up to 40 mph on Thursday and up to 50 mph on Friday, in
addition to the moderate-heavy rain and lightning.
Overall, minimum RH across the area will be a bit drier, reaching
near- critical values during the afternoon across many valleys,
with marginal overnight recoveries (35-50% for those same
valleys). Expect temperatures across northern Utah to run quite a
bit warmer through the weekend and well into next week as the
ridge crests over the region.
&&
.SLC WATCHES/WARNINGS/ADVISORIES...
UT...Extreme Heat Watch from Saturday afternoon through Monday
evening for UTZ103>107.
WY...None.
&&
PUBLIC...WESSLER
AVIATION...WORSTER
FIRE WEATHER...WESSLER
For more information from NOAA's National Weather Service visit...
http://weather.gov/saltlakecityIn the hours before
Local storm report, Jul 23, 3:54 PM MDT, 2 hours 43 minutes before
Preliminary Local Storm Report
National Weather Service Salt Lake City UT
354 PM MDT Thu Jul 23 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0300 PM Flash Flood 1 WNW Wanship 40.80N 111.41W
07/22/2026 Summit UT Broadcast Media
Media report of Wanship Cemetery flooding
that damaged headstones and carved out
channels in the cemetery along with washing
debris into the parking lot. Time estimated
from the heaviest rain rates at the weather
station: I-80 @ Wanship, UT (UTAH DOT - SLC)
Elev: 5852.0 ft; Lat/Lon:
40.81295/-111.40141.
&&
HRMLocal storm report, Jul 23, 4:02 PM MDT, 2 hours 35 minutes before
Preliminary Local Storm Report
National Weather Service Salt Lake City UT
402 PM MDT Thu Jul 23 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0430 PM Flash Flood Butterfield Canyon Road 40.50N 112.11W
07/22/2026 Salt Lake UT Park/Forest Srvc
Tooele County Parks and Rec posted that
Butterfield Canyon Road on the Salt Lake
Valley side is closed due to being washed
out from rain. Rainfall estimates ~0.7
inches from a weather station near Kennecott
mine.
&&
HRMLocal storm report, Jul 23, 4:11 PM MDT, 2 hours 26 minutes before
Preliminary Local Storm Report
National Weather Service Salt Lake City UT
411 PM MDT Thu Jul 23 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0400 PM Flash Flood 5 ESE Hatch 37.63N 112.35W
07/22/2026 Garfield UT Emergency Mngr
Garfield county EM said that 6 people riding
side by sides had to be rescued up this
canyon due to debris flow/flooding from the
France Canyon burn scar.
&&
HRMThe office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 6:31 PM MDT | Flash Flood Warning | SLC | Beaver | 3 hr |
| Jul 24, 9:09 AM MDT | Heat Advisory | SLC | Box Elder, Cache, Carbon, Davis, Duchesne, Emery and 13 more | 4 days |
| Jul 24, 2:09 PM MDT | Special Weather Statement | SLC | Piute | 36 min |
| Jul 24, 2:31 PM MDT | Flash Flood Warning | SLC | Beaver | 3 hr |
| Jul 24, 2:40 PM MDT | Special Weather Statement | SLC | 35 min | |
| Jul 24, 3:24 PM MDT | Special Weather Statement | SLC | Beaver | 36 min |
| Jul 24, 5:43 PM MDT | Special Weather Statement | SLC | 32 min |
Nearby
Flash Flood Warnings in Utah, 2026Every flash flood warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.