Alert archive / Texas / Mesoscale Discussions in 2009
Mesoscale Discussion 1608
The Storm Prediction Center issued this mesoscale discussion at Jul 17, 2009, 7:59 PM CDT for 4 states. It was in force for 61 min.
The area
The outline as issued.
The facts
- Issued
- Jul 17, 2009, 7:59 PM CDT (00:59 UTC)
- Expired
- Jul 17, 2009, 9:00 PM CDT
- In force
- 61 min
- Issued by
- the Storm Prediction Center
All 52 counties
Morton County, KS, Stanton County, KS, Stevens County, KS, Chaves County, NM, Curry County, NM, De Baca County, NM, Lea County, NM, Roosevelt County, NM, Beaver County, OK, Texas County, OK, Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Cochran County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Gaines County, TX, Garza County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hockley County, TX, Hutchinson County, TX, Kent County, TX, Lamb County, TX, Lipscomb County, TX, Lubbock County, TX, Lynn County, TX, Moore County, TX, Motley County, TX, Ochiltree County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Swisher County, TX, Terry County, TX, Wheeler County, TX, Yoakum County, TX
The radar
The Amarillo radar (KAMA), 24 km from the middle of the area, began a volume at 00:59 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
Amarillo Airport, TX (KAMA), launched 00:00Z, 1.0 hours before the alert went out and 25 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
- 857 J/kg
- Mixed-layer CIN
- -156 J/kg
- Mixed-layer LCL
- 1951 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 127 m²/s²
- 0-3 km storm-relative helicity
- 261 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.4
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 |
|---|---|---|---|---|
| Jul 17, 7:32 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Greeley, Sherman, Wallace | 58 min |
| Jul 17, 9:44 PM CDT | Mesoscale Discussion | SPC | Curry, Harding, Lea, Quay, Roosevelt, Union | 61 min |
| Jul 17, 10:56 PM CDT | Mesoscale Discussion | SPC | Lea | 64 min |
| Jul 18, 2:14 PM CDT | Mesoscale Discussion | SPC | Colfax, Curry, Harding, Mora, Quay, Roosevelt and 2 more | 2 hr |
| Jul 18, 2:43 PM CDT | Severe Thunderstorm Watch | SPC | Chaves, Colfax, Curry, De Baca, Guadalupe, Harding and 5 more | 7 hr |
| Jul 18, 6:20 PM CDT | Mesoscale Discussion | SPC | Curry, Quay, Roosevelt | 85 min |
| Jul 17, 11:18 PM CDT | Severe Thunderstorm Watch | SPC | Crane, Crockett, Ector, Glasscock, Loving, Midland and 7 more | 5 hr |
Nearby
Mesoscale Discussions in Texas, 2009Mesoscale Discussions in New Mexico, 2009Mesoscale Discussions in Kansas, 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.