Alert archive / Colorado / Mesoscale Discussions in 2009

Mesoscale Discussion 504

April 17, 2009Kiowa County, Lincoln County, Colorado

The Storm Prediction Center issued this mesoscale discussion at Apr 17, 2009, 4:19 PM MDT for Kiowa County, Lincoln County, Colorado. It was in force for 56 min.

The area

The outline as issued.

The facts

Issued
Apr 17, 2009, 4:19 PM MDT (22:19 UTC)
Expired
Apr 17, 2009, 5:15 PM MDT
In force
56 min
Issued by
the Storm Prediction Center

Counties Kiowa County, CO, Lincoln County, CO

The radar

The Pueblo radar (KPUX), 80 km from the middle of the area, began a volume at 22:19 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

Dodge City, (KDDC), launched 12:00Z, 10.3 hours before the alert went out and 305 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, Dodge City, at 12:00Z on 2009-04-17Temperature 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 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 12:00Z on 2009-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 318 square meters per square second.19395878Sfc1 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
592 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
318 m²/s²
0-3 km storm-relative helicity
317 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 17, 1:17 AM MDTMesoscale DiscussionSPCBoulder, Broomfield, Denver, Douglas, Gilpin, Jefferson and 1 more4 hr
Apr 17, 11:49 AM MDTMesoscale DiscussionSPCCheyenne, Crowley, Kiowa, Prowers86 min
Apr 17, 2:24 PM MDTMesoscale DiscussionSPCProwers96 min

Nearby

Mesoscale Discussions in Colorado, 2009Every mesoscale discussion in 2009

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.