Alert archive / Utah / Flash Flood Warnings in 2025

Flash Flood Warning 13, NWS Salt Lake City, UT

July 17, 2025Kane County, Utah

NWS Salt Lake City, UT issued this flash flood warning at Jul 17, 2025, 5:28 PM MDT for Kane 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: Jul 17, 2025, 5:28 PM MDT (23:28 UTC)
Expired: Jul 17, 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 Kane County, UT

The radar

The Cedar City radar (KICX), 102 km from the middle of the area, began a volume at 23:27 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, 11.5 hours before the alert went out and 200 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 1475 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

028 
WGUS55 KSLC 172328
FFWSLC
UTC025-180215-
/O.NEW.KSLC.FF.W.0013.250717T2328Z-250718T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Salt Lake City UT
528 PM MDT Thu Jul 17 2025

The National Weather Service in Salt Lake City has issued a

* Flash Flood Warning for...
  Southern Kane County in southern Utah...

* Until 815 PM MDT.

* At 528 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 0.25 and 0.5 inches of 
  rain have fallen in the catchment basin of The Wave and Wire Pass. 
  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,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  mainly rural areas of Southern Kane County

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 3700 11188 3700 11200 3700 11203 3702 11204
      3707 11200 3708 11192 3704 11190

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

Webber

2 follow-up statements

533 
WGUS75 KSLC 180057
FFSSLC

Flash Flood Statement
National Weather Service Salt Lake City UT
657 PM MDT Thu Jul 17 2025

UTC025-180215-
/O.CON.KSLC.FF.W.0013.000000T0000Z-250718T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kane UT-
657 PM MDT Thu Jul 17 2025

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM MDT THIS 
EVENING FOR SOUTHERN KANE COUNTY...

At 657 PM MDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 0.5 and 0.75 inches of rain 
have fallen in the catchment basins of The Wave and Wire Pass. 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,
         urban areas, highways, streets and underpasses.

Some locations that will experience flash flooding include...
  mainly rural areas of Southern Kane County

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 3700 11188 3700 11200 3700 11203 3702 11204
      3707 11200 3708 11192 3704 11190

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

Webber

197 
WGUS75 KSLC 180208
FFSSLC

Flash Flood Statement
National Weather Service Salt Lake City UT
808 PM MDT Thu Jul 17 2025

UTC025-180218-
/O.EXP.KSLC.FF.W.0013.000000T0000Z-250718T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kane UT-
808 PM MDT Thu Jul 17 2025

...FLASH FLOOD WARNING WILL EXPIRE AT 815 PM MDT THIS EVENING FOR 
SOUTHERN KANE COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

A Flood Watch remains in effect until 1200 AM MDT for portions of 
southern and southwest Utah.

&&

LAT...LON 3700 11188 3700 11200 3700 11203 3702 11204
      3707 11200 3708 11192 3704 11190

$$

HM

The office that day

Everything else NWS Salt Lake City, UT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 16, 8:07 PM MDT	Special Weather Statement	SLC	Box Elder	38 min
Jul 17, 12:23 PM MDT	Flood Watch	SLC	Beaver, Garfield, Iron, Kane, Washington	12 hr
Jul 17, 2:05 PM MDT	Special Weather Statement	SLC	Iron	25 min
Jul 17, 3:18 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	3 hr
Jul 17, 3:28 PM MDT	Areal Flood Advisory	SLC	Iron	2 hr
Jul 17, 3:41 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	3 hr
Jul 17, 3:58 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	3 hr
Jul 17, 4:09 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron, Washington	3 hr
Jul 17, 4:18 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	7 hr
Jul 17, 5:11 PM MDT	Special Weather Statement	SLC	Utah	49 min

Nearby

Flash Flood Warnings in Utah, 2025 Every 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.