Alert archive / Colorado / Mesoscale Discussions in 2018

Mesoscale Discussion 860

June 24, 20189 counties in Colorado; Colfax County, Union County, New Mexico; Cimarron County, Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Jun 24, 2018, 2:04 PM MDT for 9 counties in Colorado; Colfax County, Union County, New Mexico; Cimarron County, Oklahoma. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued
Jun 24, 2018, 2:04 PM MDT (20:04 UTC)
Expired
Jun 24, 2018, 3:30 PM MDT
In force
86 min
Issued by
the Storm Prediction Center
Chance of a watch
60%

Counties Baca County, CO, Bent County, CO, Crowley County, CO, Huerfano County, CO, Kiowa County, CO, Las Animas County, CO, Otero County, CO, Prowers County, CO, Pueblo County, CO, Colfax County, NM, Union County, NM, Cimarron County, OK

The radar

The Pueblo radar (KPUX), 128 km from the middle of the area, began a volume at 20:07 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 8.1 hours before the alert went out and 281 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 2018-06-24Temperature 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 2018-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -40 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
1017 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
-40 m²/s²
0-3 km storm-relative helicity
145 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 24, 1:16 AM MDTMesoscale DiscussionSPCCheyenne, Kit Carson, Logan, Morgan, Phillips, Sedgwick and 2 more59 min
Jun 24, 12:51 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Logan, Morgan, Phillips, Sedgwick and 3 more84 min
Jun 24, 2:54 PM MDTSevere Thunderstorm WatchSPCBaca, Bent, Cheyenne, Crowley, El Paso, Huerfano and 7 more6 hr
Jun 24, 4:31 PM MDTMesoscale DiscussionSPCCheyenne, Crowley, Kiowa89 min
Jun 23, 6:50 PM MDTMesoscale DiscussionSPCBeckham, Blaine, Caddo, Canadian, Carter, Cleveland and 24 more55 min
Jun 23, 8:32 PM MDTMesoscale DiscussionSPCAlfalfa, Beaver, Blaine, Canadian, Custer, Dewey and 16 more118 min
Jun 23, 8:52 PM MDTSevere Thunderstorm WatchSPCAlfalfa, Beaver, Blaine, Custer, Dewey, Ellis and 13 more7 hr
Jun 24, 12:25 AM MDTMesoscale DiscussionSPCAlfalfa, Beaver, Blaine, Canadian, Cleveland, Creek and 25 more95 min
Jun 24, 2:23 AM MDTSevere Thunderstorm WatchSPCCanadian, Cherokee, Creek, Haskell, Hughes, Latimer and 19 more6 hr
Jun 24, 4:11 AM MDTMesoscale DiscussionSPCAdair, Cherokee, Cleveland, Creek, Haskell, Hughes and 13 more79 min
Jun 24, 4:28 AM MDTSevere Thunderstorm WatchSPCAdair, McCurtain, Pushmataha4 hr
Jun 24, 6:17 AM MDTMesoscale DiscussionSPCAlfalfa, Beaver, Beckham, Blaine, Caddo, Canadian and 14 more118 min
Jun 24, 6:37 AM MDTMesoscale DiscussionSPCMcCurtain113 min
Jun 24, 11:57 AM MDTMesoscale DiscussionSPCCaddo, Canadian, Carter, Cleveland, Comanche, Cotton and 15 more93 min
Jun 24, 1:40 PM MDTSevere Thunderstorm WatchSPCAtoka, Bryan, Carter, Choctaw, Coal, Garvin and 15 more5 hr
Jun 24, 3:18 PM MDTMesoscale DiscussionSPCBryan, Choctaw, LeFlore, McCurtain, Pushmataha117 min
Jun 24, 3:53 PM MDTSevere Thunderstorm WatchSPCMcCurtain6 hr

Nearby

Mesoscale Discussions in Colorado, 2018Mesoscale Discussions in New Mexico, 2018Mesoscale Discussions in Oklahoma, 2018Every mesoscale discussion in 2018

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.