Alert archive / Colorado / Red Flag Warnings in 2011
Red Flag Warning 15, NWS Grand Junction, CO
NWS Grand Junction, CO issued this red flag warning at Jun 17, 2011, 1:46 PM MDT for 5 counties in Colorado. It took effect at Jun 18, 2011, 12:00 PM MDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 17, 2011, 1:46 PM MDT (19:46 UTC)
- In effect from
- Jun 18, 2011, 12:00 PM MDT
- Expired
- Jun 18, 2011, 8:51 PM MDT
- In force
- 9 hr
- Issued by
- NWS Grand Junction, CO
Counties Dolores County, CO, La Plata County, CO, Montezuma County, CO, Montrose County, CO, San Miguel County, CO
The radar
The Grand Junction radar (KGJX), 146 km from the middle of the area, began a volume at 19:45 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.
The nearest sounding before it
Albuquerq/Krtlnd, NM (KABQ), launched 12:00Z, 7.8 hours before the alert went out and 338 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
- 3965 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this red flag warning 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 red flag warning went out at Jun 17, 4:20 AM MDT, 9 hours 26 minutes earlier.
Area forecast discussion, Jun 17, 4:20 AM MDT, 9 hours 26 minutes before
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</html>Hazardous weather outlook, Jun 17, 6:00 AM MDT, 7 hours 46 minutes before
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<div class="status" id="status">Temporary Notice</div>
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</html>The office that day
Everything else NWS Grand Junction, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 10:08 AM MDT | River Flood Advisory | GJT | Eagle, Garfield | 50 hr |
| Jun 17, 1:46 PM MDT | Fire Weather Watch | GJT | Dolores, La Plata, Montezuma, San Miguel | 25 hr |
Nearby
Red Flag Warnings in Colorado, 2011Every red flag warning in 2011
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.