Alert archive / Utah / Flash Flood Warnings in 2016
Flash Flood Warning 1, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Jun 30, 2016, 5:42 PM MDT for Kane County, Washington County, Utah. It was in force for 3 hr. 2 reports 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
- Jun 30, 2016, 5:42 PM MDT (23:42 UTC)
- Expired
- Jun 30, 2016, 8:45 PM MDT
- In force
- 3 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
- Flood severity
- None
Counties Kane County, UT, Washington County, UT
The radar
The Cedar City radar (KICX), 42 km from the middle of the area, began a volume at 23:45 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 |
|---|---|---|---|
| Jun 30, 6:15 PM MDT | FLASH FLOOD | 3 Ese Springdale, UT | THE EAST FORK OF THE VIRGIN RIVER INCREASED FROM 43 CFS TO 1880 CFS IN 15 MINUTES. |
| Jun 30, 6:55 PM MDT | FLASH FLOOD | 4 E Springdale, UT | ZION NATIONAL PARK RANGERS REPORT HEAVY FLOODING ON CLEAR CREEK, MANY WATERFALLS NEAR TWIN BROTHERS, AND FLASH FLOODING IN MOST SLOT CANYONS IN THE SOUTHEAST PORTION OF THE PARK. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 11.7 hours before the alert went out and 243 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
- 83 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 1378 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
549
WGUS55 KSLC 302342
FFWSLC
UTC025-053-010245-
/O.NEW.KSLC.FF.W.0001.160630T2342Z-160701T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
542 PM MDT THU JUN 30 2016
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WESTERN KANE COUNTY IN UTAH...
EAST CENTRAL WASHINGTON COUNTY IN UTAH...
* UNTIL 845 PM MDT
* AT 539 PM MDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN OVER THE SOUTHEASTERN QUADRANT OF ZION NATIONAL PARK.
RADAR ESTIMATES INDICATE THAT UP TO TWO INCHES OF RAIN HAVE
ALREADY FALLEN.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... CLEAR
CREEK...PINE CREEK...THE EAST FORK OF THE VIRGIN RIVER...AND
ECHO CANYON IN ZION NATIONAL PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 3730 11290 3728 11288 3723 11285 3717 11285
3717 11290 3716 11292 3715 11298 3716 11302
3728 11295
$$
LC2 follow-up statements
267
WGUS75 KSLC 010050
FFSSLC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
650 PM MDT THU JUN 30 2016
UTC025-053-010245-
/O.CON.KSLC.FF.W.0001.000000T0000Z-160701T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KANE UT-WASHINGTON UT-
650 PM MDT THU JUN 30 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM MDT FOR
WESTERN KANE AND EAST CENTRAL WASHINGTON COUNTIES...
AT 644 PM MDT...DOPPLER RADAR INDICATED THAT UP TO TWO INCHES OF
RAIN HAVE ALREADY FALLEN ACROSS THE SOUTHEASTERN QUADRANT OF ZION
NATIONAL PARK. FLASH FLOODING HAS ALREADY BEEN REPORTED IN THE EAST
FORK OF THE VIRGIN RIVER WHERE THE RIVER GAGE INDICATES FLOWS OF
1880 CFS.
OTHER LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...CLEAR
CREEK...PINE CREEK AND ECHO CANYON IN ZION NATIONAL PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 3730 11290 3728 11288 3723 11285 3717 11285
3717 11290 3716 11292 3715 11298 3716 11302
3728 11295
$$
LC223
WGUS75 KSLC 010245
FFSSLC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
845 PM MDT THU JUN 30 2016
UTC025-053-010250-
/O.EXP.KSLC.FF.W.0001.000000T0000Z-160701T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KANE UT-WASHINGTON UT-
845 PM MDT THU JUN 30 2016
...THE FLASH FLOOD WARNING FOR WESTERN KANE AND EAST CENTRAL
WASHINGTON COUNTIES WILL EXPIRE AT 845 PM MDT...
PRECIPITATION HAS DECREASED IN INTENSITY OVER ZION NATIONAL PARK AND
RUNOFF FROM EARLIER PRECIPITATION HAS DIMINISHED. THEREFORE...THE
FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE. HOWEVER...ELEVATED
FLOWS WILL CONTINUE ALONG SOME STREAMS IN THE AREA THROUGH LATE THIS
EVENING. MONITOR NOAA WEATHER RADIO OR LOCAL TELEVISION OR RADIO FOR
THE LATEST WEATHER INFORMATION.
LAT...LON 3730 11290 3728 11288 3723 11285 3717 11285
3717 11290 3716 11292 3715 11298 3716 11302
3728 11295
$$
LCThe office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 6:04 PM MDT | Special Weather Statement | SLC | Salt Lake | 26 min |
| Jun 29, 6:40 PM MDT | Special Weather Statement | SLC | Salt Lake | 20 min |
| Jun 30, 2:47 PM MDT | Flash Flood Watch | SLC | 30 hr |
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.