Alert archive / Utah / Flash Flood Warnings in 2012
Flash Flood Warning 22, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Jul 24, 2012, 12:56 PM MDT for Garfield 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 24, 2012, 12:56 PM MDT (18:56 UTC)
- Expired
- Jul 24, 2012, 4:00 PM MDT
- In force
- 3 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
- Flood severity
- None
County Garfield County, UT
The radar
The Cedar City radar (KICX), 163 km from the middle of the area, began a volume at 18:58 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
Grand Junction, CO (KGJT), launched 12:00Z, 6.9 hours before the alert went out and 255 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
- 2151 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- -5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
968
WGUS55 KSLC 241856
FFWSLC
UTC017-242200-
/O.NEW.KSLC.FF.W.0022.120724T1856Z-120724T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1256 PM MDT TUE JUL 24 2012
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CAPITOL REEF NATIONAL PARK IN NORTH CENTRAL GARFIELD COUNTY IN UTAH
* UNTIL 400 PM MDT
* AT 1248 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED HEAVY RAIN FROM A THUNDERSTORM OVER THE OAK CREEK AND
PLEASANT CREEK DRAINAGES. ADDITIONAL THUNDERSTORMS ARE DEVELOPING TO
THE WEST AND WILL CONTINUE TO MOVE OVER THE AREA.
FLASH FLOODING IS EXPECTED IN THESE DRAINAGES OVER THE NEXT SEVERAL
HOURS. THIS WARNING INCLUDES A PORTION OF THE CAPITOL REEF NATIONAL
PARK WITHIN THE WATERPOCKET FOLD AREA INCLUDING THE SHEETS GULCH
AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 3802 11118 3811 11122 3816 11108 3815 11105
3814 11104 3805 11105
$$
KRUSE2 follow-up statements
454
WGUS75 KSLC 242035
FFSSLC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
235 PM MDT TUE JUL 24 2012
UTC017-242200-
/O.CON.KSLC.FF.W.0022.000000T0000Z-120724T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GARFIELD UT-
235 PM MDT TUE JUL 24 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 PM MDT FOR THE
OAK CREEK AND PLEASANT CREEK DRAINAGES IN AND NEAR CAPITOL REEF
NATIONAL PARK IN NORTH CENTRAL GARFIELD COUNTY...
AT 227 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE MODERATE TO HEAVY RAINFALL OVER THE OAK CREEK AND PLEASANT
CREEK DRAINAGES.
FLASH FLOODING CONTINUES TO BE LIKELY ACROSS THE OAK CREEK AND
PLEASANT CREEK DRAINAGES INCLUDING THE SHEETS GULCH AREA. ADDITIONAL
HEAVY RAINFALL IS OCCURRING TO THE SOUTH AND WEST OF THESE DRAINAGES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 3802 11118 3811 11122 3816 11108 3815 11105
3814 11104 3805 11105
$$
KRUSE113
WGUS75 KSLC 242152
FFSSLC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
352 PM MDT TUE JUL 24 2012
UTC017-242201-
/O.EXP.KSLC.FF.W.0022.000000T0000Z-120724T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GARFIELD UT-
352 PM MDT TUE JUL 24 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 400 PM MDT FOR THE OAK
CREEK AND PLEASANT CREEK DRAINAGES INCLUDING THE SHEETS GULCH IN
NORTH CENTRAL GARFIELD COUNTY...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
LAT...LON 3802 11118 3811 11122 3816 11108 3815 11105
3814 11104 3805 11105
$$
KRUSEThe office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 8:58 AM MDT | Flash Flood Warning | SLC | Washington | 6 hr |
| Jul 24, 1:28 PM MDT | Flash Flood Warning | SLC | Wayne | 4 hr |
| Jul 24, 1:34 PM MDT | Special Weather Statement | SLC | Washington | 41 min |
| Jul 24, 1:45 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 18 min |
| Jul 24, 2:44 PM MDT | Flash Flood Warning | SLC | Washington | 6 hr |
| Jul 24, 3:18 PM MDT | Special Weather Statement | SLC | Iron | 42 min |
Nearby
Flash Flood Warnings in Utah, 2012Every flash flood warning in 2012
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.