Alert archive / Colorado / Flash Flood Watches in 2016
Flash Flood Watch 2, NWS Grand Junction, CO
NWS Grand Junction, CO issued this flash flood watch at May 27, 2016, 5:34 AM MDT for Delta County, Garfield County, Mesa County, Colorado. It was in force for 36 hr.
The area
The counties it named.
The facts
- Issued
- May 27, 2016, 5:34 AM MDT (11:34 UTC)
- Expired
- May 28, 2016, 6:00 PM MDT
- In force
- 36 hr
- Issued by
- NWS Grand Junction, CO
- Flood severity
- None
Counties Delta County, CO, Garfield County, CO, Mesa County, CO
The radar
The Grand Junction radar (KGJX), 16 km from the middle of the area, began a volume at 11:37 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
Denver, CO (KDEN), launched 00:00Z, 11.6 hours before the alert went out and 423 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
- 972 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Junction, CO wrote its last area forecast discussion before this flash flood watch went out at May 27, 3:12 AM MDT, 2 hours 22 minutes earlier.
Area forecast discussion, May 27, 3:12 AM MDT, 2 hours 22 minutes before
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Flash Flood Watches in Colorado, 2016Every flash flood watch 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.