Alert archive / Oklahoma / Mesoscale Discussions in 2005
Mesoscale Discussion 682
The Storm Prediction Center issued this mesoscale discussion at Apr 25, 2005, 1:11 PM CDT for 38 counties in Oklahoma. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Apr 25, 2005, 1:11 PM CDT (18:11 UTC)
- Expired
- Apr 25, 2005, 2:15 PM CDT
- In force
- 64 min
- Issued by
- the Storm Prediction Center
All 38 counties
Alfalfa County, OK, Atoka County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Carter County, OK, Cleveland County, OK, Coal County, OK, Comanche County, OK, Cotton County, OK, Creek County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Grant County, OK, Hughes County, OK, Jefferson County, OK, Johnston County, OK, Kay County, OK, Kingfisher County, OK, Lincoln County, OK, Logan County, OK, Love County, OK, Major County, OK, Marshall County, OK, McClain County, OK, Murray County, OK, Noble County, OK, Okfuskee County, OK, Oklahoma County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Pontotoc County, OK, Pottawatomie County, OK, Seminole County, OK, Stephens County, OK, Woods County, OK
The radar
The Norman radar (KTLX), 13 km from the middle of the area, began a volume at 18:13 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
Lamont, OK (KLMN), launched 12:00Z, 6.2 hours before the alert went out and 132 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
- 892 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 167 m²/s²
- 0-3 km storm-relative helicity
- 261 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 |
|---|---|---|---|---|
| Apr 25, 2:00 PM CDT | Severe Thunderstorm Watch | SPC | Atoka, Canadian, Carter, Cleveland, Coal, Cotton and 32 more | 6 hr |
| Apr 25, 5:41 PM CDT | Mesoscale Discussion | SPC | Atoka, Canadian, Carter, Cleveland, Coal, Cotton and 32 more | 94 min |
| Apr 25, 6:13 PM CDT | Mesoscale Discussion | SPC | Choctaw, McCurtain, Pushmataha | 62 min |
Nearby
Mesoscale Discussions in Oklahoma, 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.