Alert archive / Oklahoma / Mesoscale Discussions in 2009
Mesoscale Discussion 340
The Storm Prediction Center issued this mesoscale discussion at Mar 30, 2009, 10:10 PM CDT for 5 counties in Kansas; 32 counties in Oklahoma. It was in force for 95 min.
The area
The outline as issued.
The facts
- Issued
- Mar 30, 2009, 10:10 PM CDT (03:10 UTC)
- Expired
- Mar 30, 2009, 11:45 PM CDT
- In force
- 95 min
- Issued by
- the Storm Prediction Center
All 37 counties
Cherokee County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Adair County, OK, Atoka County, OK, Carter County, OK, Cherokee County, OK, Coal County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Garvin County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Mayes County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 55 km from the middle of the area, began a volume at 03:11 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
Norman, OK (KOUN), launched 00:00Z, 3.2 hours before the alert went out and 172 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
- 118 J/kg
- Mixed-layer CIN
- -88 J/kg
- Mixed-layer LCL
- 1627 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 133 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
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 |
|---|---|---|---|---|
| Mar 30, 7:40 PM CDT | Mesoscale Discussion | SPC | Butler, Chautauqua, Cowley, Elk, Greenwood, Harvey and 7 more | 2 hr |
| Mar 30, 8:31 PM CDT | Mesoscale Discussion | SPC | Love | 89 min |
| Mar 30, 11:42 PM CDT | Mesoscale Discussion | SPC | Bryan, Choctaw, Haskell, Latimer, LeFlore, McCurtain and 1 more | 2 hr |
Nearby
Mesoscale Discussions in Oklahoma, 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.