Flash Flood Warning 104, NWS Salt Lake City, UT

Issued

Aug 18, 2021, 7:30 AM MDT (13:30 UTC)

Expired

Aug 18, 2021, 9:00 AM MDT

In force

90 min

Issued by

NWS Salt Lake City, UT

Area

Storm-based polygon

Damage threat

Considerable

Flood severity

None

Counties Kane County, UT, Washington County, UT

The Cedar City radar (KICX), 35 km from the middle of the area, began a volume at 13:31 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.

972 
WGUS55 KSLC 181330
FFWSLC
UTC025-053-181500-
/O.NEW.KSLC.FF.W.0104.210818T1330Z-210818T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Salt Lake City UT
730 AM MDT Wed Aug 18 2021

The National Weather Service in Salt Lake City has issued a

* Flash Flood Warning for...
  West Central Kane County in southern Utah...
  East Central Washington County in southwestern Utah...

* Until 900 AM MDT.

* At 730 AM MDT, gauge reports indicated flash flooding occuring 
  near the Zion National Park Visitor's Center. Flash flooding is 
  already occurring.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Gauges reported.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Zion National Park, Springdale and Rockville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3734 11300 3734 11291 3739 11281 3733 11278
      3726 11287 3725 11290 3717 11300 3716 11303
      3727 11299

FLASH FLOOD...GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

CRK

563 
WGUS75 KSLC 181436
FFSSLC

Flash Flood Statement
National Weather Service Salt Lake City UT
836 AM MDT Wed Aug 18 2021

UTC025-053-181500-
/O.CON.KSLC.FF.W.0104.000000T0000Z-210818T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kane UT-Washington UT-
836 AM MDT Wed Aug 18 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING 
FOR WEST CENTRAL KANE AND EAST CENTRAL WASHINGTON COUNTIES...

At 836 AM MDT, Gauge reports continue to show flash flooding along 
the North Fork of the Virgin River. An additional wave of water may 
come down the North Fork of the Virgin, through the Narrows from 
Orderville Canyon.

HAZARD...Life threatening flash flooding. Thunderstorms producing
         flash flooding.

SOURCE...Gauges reported.

IMPACT...Life threatening flash flooding of creeks, streams,
         normally dry washes and rivers.

Some locations that will experience flash flooding include...
  Zion National Park, Springdale and Rockville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3734 11300 3734 11291 3739 11281 3733 11278
      3726 11287 3725 11290 3717 11300 3716 11303
      3727 11299

FLASH FLOOD...GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

CRK

Flash Flood Warnings in Utah, 2021Every flash flood warning in 2021

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.