Alert archive / Nebraska / Mesoscale Discussions in 2009
Mesoscale Discussion 973
The Storm Prediction Center issued this mesoscale discussion at Jun 7, 2009, 1:31 PM MDT for 6 counties in Nebraska. It was in force for 59 min.
The area
The outline as issued.
The facts
- Issued
- Jun 7, 2009, 1:31 PM MDT (19:31 UTC)
- Expired
- Jun 7, 2009, 2:30 PM MDT
- In force
- 59 min
- Issued by
- the Storm Prediction Center
Counties Banner County, NE, Cheyenne County, NE, Deuel County, NE, Garden County, NE, Kimball County, NE, Morrill County, NE
The radar
The Cheyenne radar (KCYS), 125 km from the middle of the area, began a volume at 19:35 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, 7.5 hours before the alert went out and 170 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2464 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 23 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 |
|---|---|---|---|---|
| Jun 6, 8:01 PM MDT | Severe Thunderstorm Watch | SPC | Cass, Clay, Fillmore, Gage, Jefferson, Johnson and 8 more | 6 hr |
| Jun 6, 8:28 PM MDT | Mesoscale Discussion | SPC | Adams, Arthur, Blaine, Brown, Buffalo, Chase and 32 more | 92 min |
| Jun 6, 10:04 PM MDT | Mesoscale Discussion | SPC | Cass, Clay, Fillmore, Gage, Jefferson, Johnson and 8 more | 86 min |
| Jun 6, 11:44 PM MDT | Mesoscale Discussion | SPC | Cass, Douglas, Gage, Johnson, Lancaster, Nemaha and 5 more | 61 min |
| Jun 7, 12:35 AM MDT | Mesoscale Discussion | SPC | Arthur, Chase, Cheyenne, Deuel, Dundy, Garden and 8 more | 55 min |
| Jun 7, 3:45 AM MDT | Mesoscale Discussion | SPC | Johnson, Nemaha, Pawnee, Richardson | 30 min |
| Jun 7, 10:16 AM MDT | Mesoscale Discussion | SPC | Antelope, Boyd, Burt, Cedar, Cuming, Dakota and 12 more | 119 min |
| Jun 7, 1:36 PM MDT | Mesoscale Discussion | SPC | Cass, Gage, Johnson, Nemaha, Otoe, Pawnee and 1 more | 114 min |
| Jun 7, 2:30 PM MDT | Mesoscale Discussion | SPC | Chase, Dundy | 60 min |
| Jun 7, 2:45 PM MDT | Tornado Watch | SPC | Cass, Douglas, Gage, Jefferson, Johnson, Lancaster and 7 more | 7 hr |
| Jun 7, 4:31 PM MDT | Severe Thunderstorm Watch | SPC | Dundy, Hitchcock, Red Willow | 5 hr |
Nearby
Mesoscale Discussions in Nebraska, 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.