Alert archive / Utah / Flash Flood Warnings in 2016

Flash Flood Warning 5, NWS Salt Lake City, UT

July 20, 2016Kane County, Utah

NWS Salt Lake City, UT issued this flash flood warning at Jul 20, 2016, 7:34 PM MDT for Kane County, Utah. It was in force for 6 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 20, 2016, 7:34 PM MDT (01:34 UTC)
Expired
Jul 21, 2016, 1:30 AM MDT
In force
6 hr
Issued by
NWS Salt Lake City, UT
Area
Storm-based polygon
Flood severity
None

County Kane County, UT

The radar

The Cedar City radar (KICX), 101 km from the middle of the area, began a volume at 01:36 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 00:00Z, 1.6 hours before the alert went out and 225 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-pSkew-T log-p diagram, Flgstf/Belemont, AZ at 00:00Z on 2016-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Flgstf/Belemont, AZ at 00:00Z on 2016-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1939 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
20 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

613 
WGUS55 KSLC 210134
FFWSLC
UTC025-210730-
/O.NEW.KSLC.FF.W.0005.160721T0134Z-160721T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
734 PM MDT WED JUL 20 2016

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL KANE COUNTY IN UTAH...

* UNTIL 130 AM MDT THURSDAY
    
* AT 728 PM MDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN OVER THE PARIA RIVER DRAINAGE, COYOTE CREEK, AND
  WAHWEAP CREEK. UP TO TWO INCHES OF RAIN HAVE ALREADY FALLEN IN THE
  PARIA DRAINAGE AND CLOSE TO ONE INCH OVER COYOTE CREEK. FLASH
  FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BIG WATER. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AND OTHER LOW LYING SPOTS.

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 3740 11172 3722 11166 3700 11145 3700 11191
      3728 11210 3745 11209

$$

LC
2 follow-up statements
309 
WGUS75 KSLC 210431
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1031 PM MDT WED JUL 20 2016

UTC025-210730-
/O.CON.KSLC.FF.W.0005.000000T0000Z-160721T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KANE UT-
1031 PM MDT WED JUL 20 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 130 AM MDT FOR
CENTRAL KANE COUNTY...

AT 1025 PM MDT...DOPPLER RADAR INDICATED THAT UP TO TWO INCHES OF
RAIN HAVE ALREADY FALLEN IN THE PARIA RIVER DRAINAGE AND AROUND ONE
INCH OVER COYOTE CREEK. RUNOFF FROM THE HEAVY RAIN WILL CAUSE FLASH
FLOODING IN THE PARIA RIVER...COYOTE CREEK AND WAHWEAP CREEK THROUGH
LATE TONIGHT.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BIG WATER. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3740 11172 3722 11166 3700 11145 3700 11191
      3728 11210 3745 11209

$$

LC
762 
WGUS75 KSLC 210538
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1138 PM MDT WED JUL 20 2016

UTC025-210730-
/O.CON.KSLC.FF.W.0005.000000T0000Z-160721T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KANE UT-
1138 PM MDT WED JUL 20 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 130 AM MDT FOR
CENTRAL KANE COUNTY...

AT 1131 PM MDT...THE HEAVY RAINFALL FROM EARLIER THIS EVENING HAS
ENDED ACROSS THE WARNED AREA. HEAVY RUNOFF IS STILL ONGOING IN THE
PARIA RIVER AND COYOTE AND WAHWEEP CREEK DRAINAGES. HIGH FLOWS WILL
CONTINUE IN THESE AREAS THROUGH 130 AM MDT.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BIG WATER....RURAL AREAS OF CENTRAL KANE COUNTY.

 PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

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 3740 11172 3722 11166 3700 11145 3700 11191
      3728 11210 3745 11209

$$

CONGER

Nearby

Flash Flood Warnings in Utah, 2016Every flash flood warning in 2016

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.