Alert archive / Utah / Flash Flood Warnings in 2025
Flash Flood Warning 21, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Aug 26, 2025, 5:14 PM MDT for Garfield County, Utah. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 26, 2025, 5:14 PM MDT (23:14 UTC)
- Expired
- Aug 26, 2025, 8:15 PM MDT
- In force
- 3 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
County Garfield County, UT
The radar
The Cedar City radar (KICX), 144 km from the middle of the area, began a volume at 23:18 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.
The nearest sounding before it
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 11.2 hours before the alert went out and 277 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
- 2 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 1305 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
613
WGUS55 KSLC 262314
FFWSLC
UTC017-270215-
/O.NEW.KSLC.FF.W.0021.250826T2314Z-250827T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Salt Lake City UT
514 PM MDT Tue Aug 26 2025
The National Weather Service in Salt Lake City has issued a
* Flash Flood Warning for...
South Central Garfield County in southern Utah...
* Until 815 PM MDT.
* At 514 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain in Escalante River, Phipps Wash, Tunnel Slot Canyon,
Harris Wash, Wolverine Canyon, Little Death Hollow, and Spencer
Flat Road. Up to 0.7 inches of rain have fallen west of the
Escalante River, with heavy rain spreading eastward. Flash
flooding is ongoing or expected to begin shortly.
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of creeks and streams,
slot canyons, and normally dry washes.
* Some locations that will experience flash flooding include...
Escalante River, Phipps Wash, Tunnel Slot Canyon, Harris Wash,
Wolverine Canyon, Little Death Hollow, and Spencer Flat Road
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Remain alert for flooding even in locations not receiving rain. Dry
washes, streams, and rivers can become raging killer currents in a
matter of minutes, even from distant rainfall.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
&&
LAT...LON 3766 11106 3763 11107 3758 11120 3761 11135
3765 11142 3774 11146 3780 11123 3780 11119
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
BW2 follow-up statements
945
WGUS75 KSLC 270049
FFSSLC
Flash Flood Statement
National Weather Service Salt Lake City UT
649 PM MDT Tue Aug 26 2025
UTC017-270215-
/O.CON.KSLC.FF.W.0021.000000T0000Z-250827T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Garfield UT-
649 PM MDT Tue Aug 26 2025
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM MDT THIS
EVENING FOR SOUTH CENTRAL GARFIELD COUNTY...
At 649 PM MDT, Doppler radar indicated thunderstorms producing heavy
rain in Escalante River, Phipps Wash, Tunnel Slot Canyon, Harris
Wash, Wolverine Canyon, Little Death Hollow, and Spencer Flat Road.
Up to 0.7 inches of rain have fallen. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of creeks and streams,
slot canyons, and normally dry washes.
Some locations that will experience flash flooding include...
Escalante River, Phipps Wash, Tunnel Slot Canyon, Harris Wash,
Wolverine Canyon, Little Death Hollow, and Spencer Flat Road
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Remain alert for flooding even in locations not receiving rain. Dry
washes, streams, and rivers can become raging killer currents in a
matter of minutes, even from distant rainfall.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
&&
LAT...LON 3766 11106 3763 11107 3758 11120 3761 11135
3765 11142 3774 11146 3780 11123 3780 11119
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
BW825
WGUS75 KSLC 270215
FFSSLC
Flash Flood Statement
National Weather Service Salt Lake City UT
815 PM MDT Tue Aug 26 2025
UTC017-270225-
/O.EXP.KSLC.FF.W.0021.000000T0000Z-250827T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Garfield UT-
815 PM MDT Tue Aug 26 2025
...FLASH FLOOD WARNING HAS EXPIRED FOR SOUTH CENTRAL GARFIELD
COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.
A Flood Watch remains in effect until 1200 AM MDT for portions of
central, southern, and southwest Utah.
&&
LAT...LON 3766 11106 3763 11107 3758 11120 3761 11135
3765 11142 3774 11146 3780 11123 3780 11119
$$
WebberThe office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 6:45 PM MDT | Special Weather Statement | SLC | Tooele | 45 min |
| Aug 25, 7:19 PM MDT | Areal Flood Advisory | SLC | Iron | 3 hr |
| Aug 26, 9:39 AM MDT | Flash Flood Warning | SLC | Kane, Washington | 3 hr |
| Aug 26, 9:42 AM MDT | Flood Watch | SLC | Beaver, Carbon, Duchesne, Emery, Garfield, Iron and 11 more | 13 hr |
| Aug 26, 3:10 PM MDT | Flash Flood Warning | SLC | Kane | 3 hr |
| Aug 26, 3:19 PM MDT | Special Weather Statement | SLC | Kane | 26 min |
| Aug 26, 3:38 PM MDT | Special Weather Statement | SLC | Kane | 37 min |
| Aug 26, 3:55 PM MDT | Special Weather Statement | SLC | Emery | 35 min |
| Aug 26, 4:13 PM MDT | Severe Thunderstorm Warning | SLC | Emery | 32 min |
| Aug 26, 4:41 PM MDT | Special Weather Statement | SLC | Emery | 34 min |
| Aug 26, 4:53 PM MDT | Flash Flood Warning | SLC | Kane, San Juan | 4 hr |
| Aug 26, 5:22 PM MDT | Special Weather Statement | SLC | 23 min |
Nearby
Flash Flood Warnings in Utah, 2025Every flash flood warning in 2025
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.