Alert archive / Utah / Flash Flood Warnings in 2005
Flash Flood Warning 39, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Aug 14, 2005, 4:24 PM MDT for Washington 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
- Aug 14, 2005, 4:24 PM MDT (22:24 UTC)
- Expired
- Aug 14, 2005, 7:30 PM MDT
- In force
- 3 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Counties, with a storm outline in the text
County Washington County, UT
The radar
The Cedar City radar (KICX), 93 km from the middle of the area, began a volume at 22:28 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, 10.4 hours before the alert went out and 298 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.
- Mixed-layer CAPE
- 166 J/kg
- Mixed-layer CIN
- -87 J/kg
- Mixed-layer LCL
- 1728 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- -2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS55 KSLC 142227 FFWSLC UTC053-150130- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SALT LAKE CITY UT 424 PM MDT SUN AUG 14 2005 THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHWESTERN WASHINGTON COUNTY IN UTAH * UNTIL 730 PM MDT * AT 418 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED NUMEROUS THUNDERSTORMS PRODUCING HEAVY RAINFALL ACROSS NORTHWESTERN WASHINGTON COUNTY. THIS CLUSTER OF THUNDERSTORMS IS GRADUALLY SPREADING SOUTHWARD...AND WILL IMPACT AREAS RECENTLY BURNED BY WILDFIRES. * DOPPLER RADAR ESTIMATED 1 TO 1.5 INCHES OF RAIN HAVE ALREADY FALLEN ACROSS NORTHWESTERN WASHINGTON COUNTY...WITH AN ADDITIONAL 1 TO 2 INCHES POSSIBLE THROUGH 6 PM. HOWEVER RUNOFF FROM THIS EXCESSIVE RAINFALL IS EXPECTED TO CONTINUE THROUGH 730 PM. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. LAT...LON 3716 11404 3718 11363 3759 11355 3759 11405 $$ SEAMAN
2 follow-up statements
000 WGUS75 KSLC 142335 FFSSLC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 533 PM MDT SUN AUG 14 2005 UTC053-150130- WASHINGTON UT- 533 PM MDT SUN AUG 14 2005 ...A FLASH FLOOD WARNING CONTINUES UNTIL 730 PM MDT FOR NORTHWESTERN WASHINGTON COUNTY... AT 530 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED TORRENTIAL RAINFALL HAD OCCURRED SINCE 4 PM OVER MUCH OF NORTHWESTERN WASHINGTON COUNTY. MANY LOCATIONS HAVE PICKED UP 1 TO 1.5 INCHES OF RAIN...WITH LOCALLY HEAVIER AMOUNTS. MUCH OF THIS HEAVY RAINFALL WILL DRAIN THROUGH MOODY WASH AND MAGOTSU CREEK...AS WELL AS THE BEAVER DAM WASH. THIS WILL RESULT IN RAPID RISES AND FLASH FLOODING ALONG THESE BASINS THROUGH 730 PM. ADDITIONALLY...MUCH OF THIS HEAVY RAINFALL OCCURRED OVER AREAS RECENTLY IMPACTED BY WILDFIRES OVER THE DIXIE NATIONAL FOREST...WHICH MAY RESULT IN MUDSLIDES AND DEBRIS FLOWS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. LAT...LON 3716 11404 3718 11363 3759 11355 3759 11405 $$ SEAMAN
000 WGUS75 KSLC 150129 FFSSLC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 728 PM MDT SUN AUG 14 2005 UTC053-150132- WASHINGTON UT- 728 PM MDT SUN AUG 14 2005 ...THE FLASH FLOOD WARNING FOR NORTHWESTERN WASHINGTON COUNTY WILL BE ALLOWED TO EXPIRE AT 730 PM... THUNDERSTORMS WHICH PRODUCED TORRENTIAL RAINFALL EARLIER HAVE MOVED OUT OF THE WARNED AREA...THUS THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR NORTHWESTERN WASHINGTON COUNTY HAS BEEN ALLOWED TO EXPIRE. RADAR ESTIMATED RAINFALL TOTALS OF 1 TO 1.5 INCHES...WITH LOCALLY HIGHER AMOUNTS FELL EARLIER ACROSS MUCH OF NORTHWESTERN WASHINGTON COUNTY. ALTHOUGH THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE...TRAVELERS IN THE AREA SHOULD REMAIN ALERT TO THE POSSIBILITIES OF ROCK AND MUD DEBRIS ON AREA ROADS...PARTICULARLY ADJACENT TO AREAS WHICH HAVE BURNED DURING RECENT WILDFIRES. LAT...LON 3716 11404 3718 11363 3759 11355 3759 11405 $$ SEAMAN
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 2:30 PM MDT | Severe Thunderstorm Warning | SLC | Beaver | 45 min |
| Aug 14, 2:31 PM MDT | Flash Flood Warning | SLC | Washington | 3 hr |
| Aug 14, 4:10 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 35 min |
Nearby
Flash Flood Warnings in Utah, 2005Every flash flood warning in 2005
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.