Alert archive / Nebraska / Mesoscale Discussions in 2005
Mesoscale Discussion 990
The Storm Prediction Center issued this mesoscale discussion at May 24, 2005, 3:07 PM CDT for 26 counties in Nebraska; 8 counties in South Dakota. It was in force for 53 min.
The area
The outline as issued.
The facts
- Issued
- May 24, 2005, 3:07 PM CDT (20:07 UTC)
- Expired
- May 24, 2005, 4:00 PM CDT
- In force
- 53 min
- Issued by
- the Storm Prediction Center
All 34 counties
Antelope County, NE, Blaine County, NE, Boone County, NE, Boyd County, NE, Cedar County, NE, Chase County, NE, Custer County, NE, Dawson County, NE, Dixon County, NE, Dundy County, NE, Frontier County, NE, Garfield County, NE, Gosper County, NE, Greeley County, NE, Hayes County, NE, Holt County, NE, Knox County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, Perkins County, NE, Pierce County, NE, Rock County, NE, Sherman County, NE, Valley County, NE, Wheeler County, NE, Bon Homme County, SD, Charles Mix County, SD, Clay County, SD, Douglas County, SD, Hutchinson County, SD, Turner County, SD, Union County, SD, Yankton County, SD
The radar
The North Platte radar (KLNX), 96 km from the middle of the area, began a volume at 20:10 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
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.1 hours before the alert went out and 125 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
- 249 J/kg
- Mixed-layer CIN
- -381 J/kg
- Mixed-layer LCL
- 1549 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -40 m²/s²
- 0-3 km storm-relative helicity
- -57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 1:03 PM CDT | Mesoscale Discussion | SPC | Chase, Dundy, Perkins | 117 min |
| May 24, 3:35 PM CDT | Severe Thunderstorm Watch | SPC | Antelope, Blaine, Boone, Boyd, Brown, Buffalo and 33 more | 7 hr |
| May 24, 6:13 PM CDT | Mesoscale Discussion | SPC | Antelope, Blaine, Boone, Boyd, Brown, Buffalo and 33 more | 2 hr |
Nearby
Mesoscale Discussions in Nebraska, 2005Mesoscale Discussions in South Dakota, 2005Every mesoscale discussion in 2005
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.