Alert archive / Utah / Flash Flood Warnings in 2014

Flash Flood Warning 40, NWS Salt Lake City, UT

September 5, 2014Garfield County, Kane County, Utah

NWS Salt Lake City, UT issued this flash flood warning at Sep 5, 2014, 3:38 PM MDT for Garfield County, Kane County, Utah. It was in force for 112 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 5, 2014, 3:38 PM MDT (21:38 UTC)
Expired
Sep 5, 2014, 5:30 PM MDT
In force
112 min
Issued by
NWS Salt Lake City, UT
Area
Storm-based polygon
Flood severity
None

Counties Garfield County, UT, Kane County, UT

The radar

The Cedar City radar (KICX), 143 km from the middle of the area, began a volume at 21:40 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, 9.6 hours before the alert went out and 268 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 12:00Z on 2014-09-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 33 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2014-09-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 square meters per square second.193958Sfc1 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
33 J/kg
Mixed-layer CIN
-120 J/kg
Mixed-layer LCL
1470 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
-9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

222 
WGUS55 KSLC 052138
FFWSLC
UTC017-025-052330-
/O.NEW.KSLC.FF.W.0040.140905T2138Z-140905T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
338 PM MDT FRI SEP 5 2014

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL GARFIELD COUNTY IN UTAH...
  NORTHEASTERN KANE COUNTY IN UTAH...

* UNTIL 530 PM MDT
    
* AT 333 PM MDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING 
  HEAVY RAIN OVER THE HARRIS WASH IN THE ESCALANTE RIVER BASIN. 
  FLASH FLOODING IS LIKELY OCCURRING ALONG THIS AND OTHER NEARBY DRY 
  WASHES IN THIS AREA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

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.

&&

LAT...LON 3771 11119 3746 11095 3747 11123 3756 11143
      3770 11143

$$

PW
2 follow-up statements
435 
WGUS75 KSLC 052227
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
427 PM MDT FRI SEP 5 2014

UTC017-025-052330-
/O.CON.KSLC.FF.W.0040.000000T0000Z-140905T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GARFIELD UT-KANE UT-
427 PM MDT FRI SEP 5 2014

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM MDT FOR
SOUTH CENTRAL GARFIELD AND NORTHEASTERN KANE COUNTIES...

AT 419 PM MDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING 
HEAVY RAIN ACROSS THE WARNED AREA WERE WEAKENING. HOWEVER...RADAR 
ESTIMATES INDICATE THAT UP TO TWO INCHES OF RAIN HAVE ALREADY FALLEN 
IN THE AREA BETWEEN HARRIS WASH AND TWENTYFIVE MILE WASH EAST 
TOWARDS THE MAIN STEM OF THE ESCALANTE RIVER. 

FLASH FLOODING IS LIKELY OCCURRING IN THESE AND OTHER DRY WASHES IN 
THIS AREA. HIGHER FLOWS ARE ALSO LIKELY ALONG THE ESCALANTE RIVER. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

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.

&&

LAT...LON 3771 11119 3746 11095 3747 11123 3756 11143
      3770 11143

$$

PW
351 
WGUS75 KSLC 052324
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
524 PM MDT FRI SEP 5 2014

UTC017-025-052332-
/O.EXP.KSLC.FF.W.0040.000000T0000Z-140905T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GARFIELD UT-KANE UT-
524 PM MDT FRI SEP 5 2014

...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL GARFIELD AND
NORTHEASTERN KANE COUNTIES WILL EXPIRE AT 530 PM MDT...

HEAVY RAIN HAS ENDED ACROSS SOUTH CENTRAL GARFIELD AND NORTHEASTERN 
KANE COUNTIES. HIGH FLOWS MAY CONTINUE ALONG THE ESCALANTE RIVER 
TOWARD LAKE POWELL FOR THE NEXT SEVERAL HOURS...HOWEVER THE FLASH 
FLOOD THREAT HAS DIMINISHED. THEREFORE...THE WARNING WILL BE ALLOWED 
TO EXPIRE.

LAT...LON 3771 11119 3746 11095 3747 11123 3756 11143
      3770 11143

$$

CRK

Nearby

Flash Flood Warnings in Utah, 2014Every flash flood warning in 2014

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.