Alert archive / Kansas / Mesoscale Discussions in 2007
Mesoscale Discussion 1825
The Storm Prediction Center issued this mesoscale discussion at Aug 20, 2007, 8:01 PM CDT for 21 counties in Kansas; Beaver County, Harper County, Texas County, Oklahoma; Lipscomb County, Ochiltree County, Texas. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- Aug 20, 2007, 8:01 PM CDT (01:01 UTC)
- Expired
- Aug 20, 2007, 9:30 PM CDT
- In force
- 89 min
- Issued by
- the Storm Prediction Center
All 26 counties
Barber County, KS, Clark County, KS, Comanche County, KS, Edwards County, KS, Finney County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Kiowa County, KS, Lane County, KS, Meade County, KS, Ness County, KS, Pawnee County, KS, Pratt County, KS, Scott County, KS, Seward County, KS, Stafford County, KS, Stevens County, KS, Beaver County, OK, Harper County, OK, Texas County, OK, Lipscomb County, TX, Ochiltree County, TX
The radar
The Dodge City radar (KDDC), 52 km from the middle of the area, began a volume at 01:04 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
Dodge City, (KDDC), launched 00:00Z, 1.0 hours before the alert went out and 57 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
- 1511 J/kg
- Mixed-layer CIN
- -121 J/kg
- Mixed-layer LCL
- 2343 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 72 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 |
|---|---|---|---|---|
| Aug 20, 9:13 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Butler, Chase, Clark, Coffey and 40 more | 32 min |
| Aug 20, 9:45 PM CDT | Severe Thunderstorm Watch | SPC | Barber, Barton, Butler, Chase, Clark, Comanche and 25 more | 3 hr |
| Aug 20, 11:11 PM CDT | Mesoscale Discussion | SPC | Barber, Harper, Kingman | 64 min |
| Aug 21, 2:47 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Rawlins, Sherman | 118 min |
| Aug 21, 3:50 PM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Decatur, Gove, Graham, Greeley, Logan and 8 more | 6 hr |
| Aug 21, 5:53 PM CDT | Mesoscale Discussion | SPC | Decatur, Greeley, Logan, Norton, Rawlins, Sheridan and 3 more | 97 min |
Nearby
Mesoscale Discussions in Kansas, 2007Mesoscale Discussions in Oklahoma, 2007Mesoscale Discussions in Texas, 2007Every mesoscale discussion in 2007
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.