Alert archive / Utah / Flash Flood Warnings in 2017
Flash Flood Warning 32, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Jul 29, 2017, 2:35 PM MDT for Kane County, Utah. It was in force for 6 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
- Jul 29, 2017, 2:35 PM MDT (20:35 UTC)
- Expired
- Jul 29, 2017, 8:30 PM MDT
- In force
- 6 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
- Flood severity
- None
County Kane County, UT
The radar
The Cedar City radar (KICX), 87 km from the middle of the area, began a volume at 20:36 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, 8.6 hours before the alert went out and 214 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
- 1152 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- -35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
096
WGUS55 KSLC 292035
FFWSLC
UTC025-300030-
/O.NEW.KSLC.FF.W.0032.170729T2035Z-170730T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Salt Lake City UT
235 PM MDT SAT JUL 29 2017
The National Weather Service in Salt Lake City has issued a
* Flash Flood Warning for...
South central Kane County in southern Utah...
* Until 630 PM MDT
* At 233 PM MDT, Doppler radar indicated a thunderstorm producing
heavy rain over Buckskin Wash. Flash flooding is expected to begin
shortly.
* Flash flooding will remain over mainly rural areas of south central
Kane County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 3716 11233 3737 11204 3731 11198 3721 11200
3712 11198 3704 11191 3700 11185 3700 11205
3704 11216
$$
PW2 follow-up statements
639
WGUS75 KSLC 292225
FFSSLC
Flash Flood Statement
National Weather Service Salt Lake City UT
425 PM MDT SAT JUL 29 2017
UTC025-300030-
/O.CON.KSLC.FF.W.0032.000000T0000Z-170730T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kane UT-
425 PM MDT SAT JUL 29 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM MDT FOR
SOUTH CENTRAL KANE COUNTY...
At 421 PM MDT, thunderstorms have ended across this area but the
heavy runoff from these storms is likely moving down the Buckskin
Gulch. Flash flooding is still expected in this drainage through the
rest of this afternoon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for flooding even in locations not receiving rain. Dry
washes, streams, and rivers can become raging killer currents in a
matter of minutes, even from distant rainfall.
&&
LAT...LON 3716 11233 3737 11204 3731 11198 3721 11200
3712 11198 3704 11191 3700 11185 3700 11205
3704 11216
$$
PW696
WGUS55 KSLC 300023
FFWSLC
UTC025-300230-
/O.EXT.KSLC.FF.W.0032.000000T0000Z-170730T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Salt Lake City UT
623 PM MDT SAT JUL 29 2017
The National Weather Service in Salt Lake City has extended the
* Flash Flood Warning for...
South central Kane County in southern Utah...
* Until 830 PM MDT
* At 621 PM MDT, trained weather spotters reported flash flooding in
Buckskin Gulch crossing House Rock Road.
* Flash flooding will continue to move down the drainage in to the
Dive portion of Buckskin Gulch through 830 PM MDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 3716 11233 3737 11204 3731 11198 3721 11200
3712 11198 3704 11191 3700 11185 3700 11205
3704 11216
$$
PWThe office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 6:07 PM MDT | Flash Flood Warning | SLC | Kane | 6 hr |
| Jul 29, 2:05 PM MDT | Flash Flood Warning | SLC | Washington | 4 hr |
Nearby
Flash Flood Warnings in Utah, 2017Every flash flood warning in 2017
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.