Alert archive / Utah / Flash Flood Warnings in 2005
Flash Flood Warning 2, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Feb 11, 2005, 3:00 PM MST for Kane County, San Juan County, Washington County, Utah. It was in force for 8 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
- Feb 11, 2005, 3:00 PM MST (22:00 UTC)
- Expired
- Feb 11, 2005, 11:00 PM MST
- In force
- 8 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Counties, with a storm outline in the text
Counties Kane County, UT, San Juan County, UT, Washington County, UT
The radar
The Cedar City radar (KICX), 31 km from the middle of the area, began a volume at 22:02 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, 10.0 hours before the alert went out and 250 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 536 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 220 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 112200 FFWSLC UTC025-037-053-120600- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SALT LAKE CITY UT 300 PM MST FRI FEB 11 2005 THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A * FLASH FLOOD WARNING FOR... KANE COUNTY IN UTAH SOUTHWESTERN SAN JUAN COUNTY IN UTAH WASHINGTON COUNTY IN UTAH * UNTIL 1100 PM MST HEAVY RAINFALL IN THE SANTA CLARA AND VIRGIN RIVER DRAINAGES HAVE BROUGHT WATER LEVELS IN DRY WASHES...SMALL STREAMS AND SLOT CANYONS UP TO DANGEROUS LEVELS. AS THE HEAVY RAINFALL SPREADS EASTWARD TODAY...SIMILAR RISES ARE EXPECTED ON RIVERS AND STREAMS IN KANE AND EXTREME WESTERN SAN JUAN COUNTIES. THESE SMALL TRIBUTARIES FEED LARGER STREAMS AND RIVERS IN THE WARNING AREA. THE FORECAST CALLS FOR WIDESPREAD RIVER FLOODING ON MAINSTEM RIVERS BY SATURDAY MORNING THROUGH SATURDAY AFTERNOON...INCLUDING THE VIRGIN...THE SANTA CLARA AND THE PARIA. THE FOLLOWING MAINSTEM RIVERS ARE EXPECTED TO FLOW AT THE FOLLOWING PEAK LEVELS. SANTA CLARA NEAR ST. GEORGE... 1100 CFS AT 2PM SATURDAY. NORTH FORK VIRGIN RIVER... 1500 CFS AT 7AM SATURDAY. VIRGIN RIVER AT VIRGIN... 5300 CFS AT 7AM SATURDAY. VIRGIN RIVER NEAR HURRICANE... 6500 CFS AT 11AM SATURDAY. VIRGIN RIVER NEAR BLOOMINGTON... 9000 CFS AT 4PM SATURDAY. VIRGIN RIVER NEAR LITTLEFIELD... 10000 CFS AT 8PM SATURDAY. AS FLOODING ALONG THESE RIVERS IS EXPECTED LATE TONIGHT THROUGH SATURDAY...AND FLASH FLOODING OF SMALLER STREAMS IS EXPECTED TO CONTINUE THROUGH TONIGHT...THIS WARNING WILL LIKELY BE EXTENDED AND REISSUED AS A RIVER FLOOD WARNING. RIVER BANKS ARE VERY UNSTABLE AND RISES COULD CAUSE FAILURE OF THE BANKS IN SOME AREAS...ESPECIALLY ALONG THE SANTA CLARA RIVER. PERSONS IN THE WARNING AREA SHOULD AVOID GOING NEAR THESE WATERWAYS AS THE FLOWS WILL BE COLD...FAST AND DANGEROUS. LAT...LON 3706 11400 3704 11060 3751 11053 3742 11332 3753 11358 3757 11400 $$ MCINERNEY/WILENSKY
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 11, 11:00 AM MST | Flash Flood Warning | SLC | Kane, San Juan, Washington | 6 hr |
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.