Alert archive / Utah / Areal Flood Advisories in 2012
Areal Flood Advisory 21, NWS Grand Junction, CO
NWS Grand Junction, CO issued this areal flood advisory at Jul 23, 2012, 1:08 PM MDT for Grand County, Uintah County, Utah. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 23, 2012, 1:08 PM MDT (19:08 UTC)
- Expired
- Jul 23, 2012, 4:00 PM MDT
- In force
- 3 hr
- Issued by
- NWS Grand Junction, CO
- Area
- Storm-based polygon
Counties Grand County, UT, Uintah County, UT
The radar
The Grand Junction radar (KGJX), 127 km from the middle of the area, began a volume at 19:08 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, 7.1 hours before the alert went out and 101 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
- 46 J/kg
- Mixed-layer CIN
- -327 J/kg
- Mixed-layer LCL
- 2150 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Grand Junction, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 2:01 PM MDT | Areal Flood Advisory | GJT | Montrose, Ouray | 3 hr |
| Jul 23, 2:24 PM MDT | Areal Flood Advisory | GJT | Dolores, Montrose, San Miguel | 3 hr |
| Jul 23, 2:56 PM MDT | Flash Flood Warning | GJT | Ouray, San Miguel | 3 hr |
| Jul 23, 3:23 PM MDT | Areal Flood Advisory | GJT | Rio Blanco | 3 hr |
| Jul 23, 4:26 PM MDT | Special Weather Statement | GJT | Garfield | 49 min |
| Jul 23, 4:53 PM MDT | Special Weather Statement | GJT | Garfield | 37 min |
| Jul 23, 5:22 PM MDT | Areal Flood Advisory | GJT | Garfield | 106 min |
| Jul 23, 5:24 PM MDT | Areal Flood Advisory | GJT | Dolores, Mesa, Montrose, San Miguel | 3 hr |
| Jul 23, 5:49 PM MDT | Flash Flood Warning | GJT | Garfield, Rio Blanco | 3 hr |
| Jul 23, 1:01 PM MDT | Areal Flood Advisory | GJT | San Juan | 3 hr |
Nearby
Areal Flood Advisories in Utah, 2012Every areal flood advisory 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.