Alert archive / Utah / Flash Flood Warnings in 2016
Flash Flood Warning 23, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Aug 26, 2016, 3:32 PM MDT for Garfield County, Wayne County, Utah. It was in force for 3 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 26, 2016, 3:32 PM MDT (21:32 UTC)
- Expired
- Aug 26, 2016, 6:30 PM MDT
- In force
- 3 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
- Flood severity
- None
Counties Garfield County, UT, Wayne County, UT
The radar
The Cedar City radar (KICX), 164 km from the middle of the area, began a volume at 21:36 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 26, 4:00 PM MDT | FLASH FLOOD | 2 S Fruita, UT | FLASH FLOODING REPORTED ALONG GRAND WASH. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Grand Junction, CO (KGJT), launched 12:00Z, 9.5 hours before the alert went out and 253 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
- 1432 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 133 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
945
WGUS55 KSLC 262134
FFWSLC
UTC017-055-270030-
/O.NEW.KSLC.FF.W.0023.160826T2132Z-160827T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
332 PM MDT FRI AUG 26 2016
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTH CENTRAL WAYNE COUNTY IN UTAH...
NORTHEASTERN GARFIELD COUNTY IN UTAH...
* UNTIL 630 PM MDT
* AT 332 PM MDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN OVER CAPITOL REEF NATIONAL PARK. FLASH FLOODING IS
EXPECTED TO BEGIN SHORTLY ALONG SULPHUR CREEK...THE GRAND WASH AND
CAPITOL GORGE.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
CAPITOL REEF NATIONAL PARK AND FRUITA.
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 3829 11112 3815 11110 3815 11121 3834 11136
$$
MPS2 follow-up statements
790 WGUS75 KSLC 262225 FFSSLC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 423 PM MDT FRI AUG 26 2016 UTC017-055-270030- /O.CON.KSLC.FF.W.0023.000000T0000Z-160827T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WAYNE UT-GARFIELD UT- 423 PM MDT FRI AUG 26 2016 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM MDT FOR SOUTH CENTRAL WAYNE AND NORTHEASTERN GARFIELD COUNTIES... AT 423 PM MDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN CONTINUED ACROSS PORTIONS OF CAPITOL REEF NATIONAL PARK INCLUDING THE GRAND WASH. RAINFALL IN EXCESS OF ONE INCH HAS FALLEN OVER THE GRAND WASH, AND IS LIKELY RESULTING IN FLASH FLOODING. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... THE GRAND WASH AND CAPITOL GORGE WITHIN CAPITOL REEF NATIONAL PARK. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMAIN ALERT FOR FLOODING EVEN IN LOCATIONS NOT RECEIVING RAIN. DRY WASHES...STREAMS...AND RIVERS CAN BECOME RAGING KILLER CURRENTS IN A MATTER OF MINUTES...EVEN FROM DISTANT RAINFALL. && LAT...LON 3829 11112 3815 11110 3815 11121 3834 11136 $$ MPS
176 WGUS75 KSLC 270037 FFSSLC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 637 PM MDT FRI AUG 26 2016 UTC017-055-270047- /O.EXP.KSLC.FF.W.0023.000000T0000Z-160827T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WAYNE UT-GARFIELD UT- 637 PM MDT FRI AUG 26 2016 ...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL WAYNE AND NORTHEASTERN GARFIELD COUNTIES HAS EXPIRED... THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES. LAT...LON 3829 11112 3815 11110 3815 11121 3834 11136 $$ MPS
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 1:44 PM MDT | Special Weather Statement | SLC | 31 min | |
| Aug 26, 2:23 PM MDT | Special Weather Statement | SLC | Kane | 52 min |
| Aug 26, 2:28 PM MDT | Special Weather Statement | SLC | Duchesne | 47 min |
| Aug 26, 2:29 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, Wayne | 30 min |
| Aug 26, 3:43 PM MDT | Special Weather Statement | SLC | Garfield | 47 min |
| Aug 26, 3:55 PM MDT | Flash Flood Warning | SLC | Garfield | 3 hr |
| Aug 26, 4:00 PM MDT | Special Weather Statement | SLC | Carbon | 30 min |
| Aug 26, 5:50 PM MDT | Special Weather Statement | SLC | 55 min |
Nearby
Flash Flood Warnings in Utah, 2016Every flash flood warning in 2016
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.