Alert archive / Utah / Flash Flood Warnings in 2000

Flash Flood Warning 3, NWS Salt Lake City, UT

June 23, 2000Iron County, Utah

NWS Salt Lake City, UT issued this flash flood warning at Jun 23, 2000, 8:00 PM MDT for Iron County, Utah. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jun 23, 2000, 8:00 PM MDT (02:00 UTC)
Expired
Jun 23, 2000, 10:00 PM MDT
In force
2 hr
Issued by
NWS Salt Lake City, UT
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Iron County, UT

The nearest sounding before it

Mercury/Desert R, NV (KDRA), launched 00:00Z, 2.0 hours before the alert went out and 273 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, Mercury/Desert R, NV at 00:00Z on 2000-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 578 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Mercury/Desert R, NV at 00:00Z on 2000-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
578 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
3188 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
-1 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.

000 
WGUS55 KSLC 240159
FFWSLC
UTC021-240400-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
800 PM MDT FRI JUN 23 2000

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS CONTINUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL IRON COUNTY IN UTAH
  THIS INCLUDES THE CITIES OF CEDAR CITY...IRON MOUNTAIN AND NEW     
  CASTLE

* UNTIL 1000 PM MDT

* AT 800 PM MDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY       
  HEAVY RAIN CONTINUING WEST AND NORTHWEST OF CEDAR CITY. THIS       
  RAINFALL WILL CONTINUE TO CAUSE FLOODING ALONG HIGHWAY 56 IN THE   
  VICINITY OF IRON MOUNTAIN AND NEW CASTLE..AND ACROSS THE CEDAR     
  VALLEY...WEST OF CEDAR CITY. FLOODING IS LIKELY IN LITTLE          
  PINTO CREEK AND OTHER CREEKS AND WASHES IN THE AREA. RAINFALL IN   
  THE CEDAR CITY AREA IS INCREASING AGAIN WHICH WILL CONTINUE THE    
  FLOODING UNTIL 1000 PM MDT.
 
THIS IS A DANGEROUS SITUATION. A FLASH FLOOD WARNING MEANS THAT 
FLOODING IS OCCURRING. TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW 
ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE 
FORECAST OFFICE IN SALT LAKE CITY.

LAT...LON 3774 11306 3757 11308 3763 11351 3780 11344

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 6:58 PM MDTFlash Flood WarningSLCIron62 min

Nearby

Flash Flood Warnings in Utah, 2000Every flash flood warning in 2000

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.