Alert archive / Utah / Flash Flood Warnings in 2014
Flash Flood Warning 33, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Aug 25, 2014, 12:06 AM MDT for Carbon County, Emery 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 25, 2014, 12:06 AM MDT (06:06 UTC)
- Expired
- Aug 25, 2014, 3:00 AM MDT
- In force
- 3 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
- Flood severity
- None
Counties Carbon County, UT, Emery County, UT
The radar
The Salt Lake City radar (KMTX), 225 km from the middle of the area, began a volume at 06:06 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
Salt Lake City I, UT (KSLC), launched 00:00Z, 6.1 hours before the alert went out and 156 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
- 2665 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 262 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
705
WGUS55 KSLC 250606
FFWSLC
UTC007-015-250900-
/O.NEW.KSLC.FF.W.0033.140825T0606Z-140825T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1206 AM MDT MON AUG 25 2014
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN CARBON COUNTY IN UTAH...
NORTHWESTERN EMERY COUNTY IN UTAH...
* UNTIL 300 AM MDT
* AT 1203 AM MDT...DOPPLER RADAR INDICATED THAT HEAVY RAINFALL HAS
BEEN FALLING OVER THE SEELEY BURN SCAR. RADAR ESTIMATES INDICATE
THAT 0.20 TO 0.30 INCHES OF RAINFALL HAS FALLEN ON THE BURN SCAR
OVER THE PAST 15 MINUTES.
IT IS EXPECTED THAT THIS AMOUNT OF RAINFALL WILL RESULT IN FLASH
FLOODING AND A DEBRIS FLOW. THIS WILL IMPACT THE HUNTINGTON POWER
PLANT LOCATED JUST UPSTREAM OF THE TOWN OF HUNTINGTON. DEBRIS AND
ASH MAY ALSO IMPACT THE HUNTINGTON/CLEVELAND IRRIGATION COMPANY.
* FLASH FLOODING AND DEBRIS FLOWS FROM THE SEELEY BURN SCAR WILL
IMPACT STATE ROUTE 31 THROUGH HUNTINGTON CANYON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
IF A DEBRIS FLOW HAS OCCURRED IT IS IMPORTANT REALIZE THAT THE RUNOUT
AREA REMAINS VERY DANGEROUS. ADDITIONAL DEBRIS FLOWS MAY OCCUR
WITHIN MINUTES OF THE ORIGINAL FLOW. PLEASE REMAIN VIGILANT AND BE
PREPARED TO TAKE SWIFT ACTION.
&&
LAT...LON 3961 11114 3934 11099 3939 11113 3950 11122
3959 11121
$$
CRK2 follow-up statements
782
WGUS75 KSLC 250729
FFSSLC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
129 AM MDT MON AUG 25 2014
UTC007-015-250900-
/O.CON.KSLC.FF.W.0033.000000T0000Z-140825T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CARBON UT-EMERY UT-
129 AM MDT MON AUG 25 2014
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 300 AM MDT FOR
SOUTHWESTERN CARBON AND NORTHWESTERN EMERY COUNTIES...
AT 125 AM MDT...DOPPLER RADAR INDICATED THAT HEAVY RAINFALL HAS BEEN
FALLING OVER THE SEELEY BURN SCAR. RADAR ESTIMATES INDICATE THAT
0.40 TO 0.60 INCHES OF RAINFALL HAS FALLEN ON THE BURN SCAR SINCE
MIDNIGHT MDT.
IT IS EXPECTED THAT THIS AMOUNT OF RAINFALL WILL RESULT IN FLASH
FLOODING AND A DEBRIS FLOW WHICH WILL IMPACT THE HUNTINGTON POWER
PLANT LOCATED JUST UPSTREAM OF THE TOWN OF HUNTINGTON. DEBRIS AND
ASH MAY ALSO IMPACT THE HUNTINGTON/CLEVELAND IRRIGATION COMPANY. THE
DEBRIS FLOW WILL ALSO IMPACT STATE ROUTE 31 THROUGH HUNTINGTON
CANYON.
TRAVELERS ON STATE ROUTE 31 THROUGH HUNTINGTON CANYON SHOULD USE
EXTREME CAUTION IN THIS AREA AS A DEBRIS FLOW MAY BE OCCURRING
ACROSS THE ROAD AND MAY BE DIFFICULT TO SEE AT NIGHT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE AWAY FROM RECENTLY BURNED AREAS. LIFE THREATENING FLOODING OF
CREEKS...ROADS AND NORMALLY DRY WASHES IS LIKELY. THE HEAVY RAINS
WILL LIKELY TRIGGER ROCKSLIDES...MUDSLIDES AND DEBRIS FLOWS IN STEEP
TERRAIN...ESPECIALLY IN AND AROUND THESE AREAS.
&&
LAT...LON 3961 11114 3934 11099 3939 11113 3950 11122
3959 11121
$$
CRK920
WGUS75 KSLC 250859
FFSSLC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
259 AM MDT MON AUG 25 2014
UTC007-015-250907-
/O.EXP.KSLC.FF.W.0033.000000T0000Z-140825T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CARBON UT-EMERY UT-
259 AM MDT MON AUG 25 2014
...THE FLASH FLOOD WARNING FOR SOUTHWESTERN CARBON AND NORTHWESTERN
EMERY COUNTIES WILL EXPIRE AT 300 AM MDT...
THE HEAVY RAINFALL HAS ENDED ACROSS THE SEELEY BURN SCAR. DEBRIS
FROM EARLIER FLASH FLOODING MAY REMAIN ON STATE ROUTE 31 IN
HUNTINGTON CANYON. IF TRAVELING THROUGH THIS AREA...USE EXTRA
CAUTION AS DEBRIS MAY BE HARD TO SEE DURING THE NIGHT TIME HOURS.
LAT...LON 3961 11114 3934 11099 3939 11113 3950 11122
3959 11121
$$
CRKThe office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 6:42 PM MDT | Special Weather Statement | SLC | Emery | 33 min |
| Aug 24, 8:11 PM MDT | Special Weather Statement | SLC | Salt Lake | 34 min |
| Aug 24, 9:01 PM MDT | Special Weather Statement | SLC | 29 min | |
| Aug 24, 9:22 PM MDT | Special Weather Statement | SLC | Summit | 38 min |
| Aug 24, 9:29 PM MDT | Severe Thunderstorm Warning | SLC | Summit | 31 min |
| Aug 24, 9:46 PM MDT | Special Weather Statement | SLC | Carbon | 44 min |
| Aug 24, 10:29 PM MDT | Special Weather Statement | SLC | Duchesne | 46 min |
| Aug 24, 11:36 PM MDT | Special Weather Statement | SLC | Duchesne | 39 min |
| Aug 25, 12:15 AM MDT | Special Weather Statement | SLC | Duchesne | 45 min |
| Aug 25, 2:19 PM MDT | Special Weather Statement | SLC | Carbon | 41 min |
| Aug 25, 2:36 PM MDT | Severe Thunderstorm Warning | SLC | Carbon, Duchesne, Utah | 24 min |
| Aug 25, 3:04 PM MDT | Special Weather Statement | SLC | Carbon | 41 min |
| Aug 25, 3:45 PM MDT | Special Weather Statement | SLC | Duchesne | 45 min |
| Aug 25, 5:06 PM MDT | Flash Flood Warning | SLC | Carbon, Emery | 3 hr |
| Aug 25, 5:17 PM MDT | Severe Thunderstorm Warning | SLC | Carbon, Duchesne, Emery | 43 min |
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.