Alert archive / Colorado / Areal Flood Advisories in 2012

Areal Flood Advisory 2, NWS Denver/Boulder, CO

June 2, 2012Jefferson County, Colorado

NWS Denver/Boulder, CO issued this areal flood advisory at Jun 2, 2012, 1:25 PM MDT for Jefferson County, Colorado. It was in force for 95 min.

The area

The counties it named.

The facts

Issued
Jun 2, 2012, 1:25 PM MDT (19:25 UTC)
Expired
Jun 2, 2012, 3:00 PM MDT
In force
95 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon

County Jefferson County, CO

The radar

The Denver radar (KFTG), 64 km from the middle of the area, began a volume at 19:29 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 (KDNR), launched 12:00Z, 7.4 hours before the alert went out and 176 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.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 12:00Z on 2012-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2012-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1766 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 2, 12:50 PM MDTSpecial Weather StatementBOUTeller25 min
Jun 2, 12:56 PM MDTSpecial Weather StatementBOUJefferson34 min
Jun 2, 1:53 PM MDTSpecial Weather StatementBOUDouglas37 min
Jun 2, 1:55 PM MDTSpecial Weather StatementBOUGilpin35 min
Jun 2, 2:00 PM MDTSpecial Weather StatementBOUJefferson30 min
Jun 2, 2:09 PM MDTSevere Thunderstorm WarningBOUJefferson36 min
Jun 2, 2:16 PM MDTSevere Thunderstorm WarningBOUDouglas, Elbert29 min
Jun 2, 2:20 PM MDTSevere Thunderstorm WarningBOUArapahoe, Denver, Jefferson40 min
Jun 2, 2:35 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe, Denver40 min
Jun 2, 2:42 PM MDTSevere Thunderstorm WarningBOUArapahoe, Elbert31 min
Jun 2, 2:50 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe40 min
Jun 2, 3:03 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe, Elbert42 min
Jun 2, 3:23 PM MDTSevere Thunderstorm WarningBOUAdams, Morgan52 min
Jun 2, 3:29 PM MDTSevere Thunderstorm WarningBOUWashington46 min
Jun 2, 3:37 PM MDTSevere Thunderstorm WarningBOUElbert, Lincoln38 min
Jun 2, 3:47 PM MDTSevere Thunderstorm WarningBOUMorgan43 min
Jun 2, 3:57 PM MDTSevere Thunderstorm WarningBOUMorgan48 min
Jun 2, 4:18 PM MDTSevere Thunderstorm WarningBOUWashington42 min
Jun 2, 4:57 PM MDTSpecial Weather StatementBOULogan48 min

Nearby

Areal Flood Advisories in Colorado, 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.