Alert archive / Utah / Flash Flood Warnings in 2016
Flash Flood Warning 2, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Jul 1, 2016, 2:50 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
- Jul 1, 2016, 2:50 PM MDT (20:50 UTC)
- Expired
- Jul 1, 2016, 5:45 PM MDT
- In force
- 3 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
- Flood severity
- None
County Washington County, UT
The radar
The Cedar City radar (KICX), 31 km from the middle of the area, began a volume at 20:51 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
Las Vegas, NV (KVEF), launched 12:00Z, 8.8 hours before the alert went out and 252 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
- 2227 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -79 m²/s²
- 0-3 km storm-relative helicity
- -47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
058
WGUS55 KSLC 012050
FFWSLC
UTC053-012345-
/O.NEW.KSLC.FF.W.0002.160701T2050Z-160701T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
250 PM MDT FRI JUL 1 2016
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EAST CENTRAL WASHINGTON COUNTY IN UTAH...
* UNTIL 545 PM MDT
* AT 246 PM MDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN OVER THE NORTH FORK OF THE VIRGIN RIVER INCLUDING THE
ZION NARROWS. RADAR ESTIMATES INDICATE THAT UP TO THREE-QUARTERS
OF AN INCH OF RAIN HAVE FALLEN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 3741 11291 3726 11291 3715 11302 3730 11299
3741 11302
$$
LC2 follow-up statements
833
WGUS75 KSLC 012219
FFSSLC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
419 PM MDT FRI JUL 1 2016
UTC053-012345-
/O.CON.KSLC.FF.W.0002.000000T0000Z-160701T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON UT-
419 PM MDT FRI JUL 1 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 PM MDT FOR
EAST CENTRAL WASHINGTON COUNTY...
AT 415 PM MDT...DOPPLER RADAR INDICATED THAT UP TO THREE-QUARTERS OF
AN INCH OF RAIN HAS FALLEN OVER THE NORTH FORK OF THE VIRGIN RIVER
INCLUDING THE ZION NARROWS IN ZION NATIONAL PARK. ALTHOUGH HEAVY
RAIN HAS DIMINISHED...RUNOFF FROM EARLIER PRECIPITATION WILL
CONTINUE TO PRODUCE FLASH FLOODING IN THE ZION NARROWS AND THE NORTH
FORK OF THE VIRGIN RIVER THROUGH EARLY THIS EVENING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 3741 11291 3726 11291 3715 11302 3730 11299
3741 11302
$$
LC395
WGUS75 KSLC 012342
FFSSLC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
542 PM MDT FRI JUL 1 2016
UTC053-012349-
/O.EXP.KSLC.FF.W.0002.000000T0000Z-160701T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON UT-
542 PM MDT FRI JUL 1 2016
...THE FLASH FLOOD WARNING FOR EAST CENTRAL WASHINGTON COUNTY WILL
EXPIRE AT 545 PM MDT...
RUNOFF FROM EARLIER PRECIPITATION OVER THE NORTH FORK OF THE VIRGIN
RIVER HAS DIMINISHED AND RIVER AND STREAM LEVELS WILL CONTINUE TO
DECREASE THROUGH THIS EVENING. THEREFORE...THE FLASH FLOOD WARNING
HAS BEEN ALLOWED TO EXPIRE. MONITOR NOAA WEATHER RADIO OR LOCAL
TELEVISION OR RADIO FOR THE LATEST WEATHER INFORMATION.
LAT...LON 3741 11291 3726 11291 3715 11302 3730 11299
3741 11302
$$
LCThe office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 6:27 PM MDT | Special Weather Statement | SLC | Tooele | 63 min |
| Jun 30, 7:46 PM MDT | Special Weather Statement | SLC | Tooele | 44 min |
| Jul 1, 3:09 PM MDT | Special Weather Statement | SLC | 51 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.