Alert archive / Nebraska / Mesoscale Discussions in 2019

Mesoscale Discussion 960

June 2, 2019Sedgwick County, Colorado; 17 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 2, 2019, 8:20 PM MDT for Sedgwick County, Colorado; 17 counties in Nebraska. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
Jun 2, 2019, 8:20 PM MDT (02:20 UTC)
Expired
Jun 2, 2019, 9:45 PM MDT
In force
85 min
Issued by
the Storm Prediction Center

Counties Sedgwick County, CO, Arthur County, NE, Blaine County, NE, Box Butte County, NE, Brown County, NE, Cherry County, NE, Cheyenne County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Morrill County, NE, Sheridan County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 87 km from the middle of the area, began a volume at 02:22 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.3 hours before the alert went out and 117 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, N. Platte/Lee Bi, NE at 00:00Z on 2019-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 667 joules per kilogram.LCLLFCEL10008507005003002001001 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, N. Platte/Lee Bi, NE at 00:00Z on 2019-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
667 J/kg
Mixed-layer CIN
-111 J/kg
Mixed-layer LCL
1611 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
151 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

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 3, 1:31 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Baca, Bent, Cheyenne, Crowley and 13 more119 min
Jun 3, 1:53 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Baca, Bent, Cheyenne, Crowley and 16 more7 hr
Jun 3, 4:41 PM MDTMesoscale DiscussionSPCCheyenne, Deuel, Kimball64 min

Nearby

Mesoscale Discussions in Nebraska, 2019Mesoscale Discussions in Colorado, 2019Every mesoscale discussion in 2019

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.