Alert archive / Oklahoma / Mesoscale Discussions in 2005
Mesoscale Discussion 327
The Storm Prediction Center issued this mesoscale discussion at Mar 21, 2005, 6:59 PM CST for 26 counties in Oklahoma. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 21, 2005, 6:59 PM CST (00:59 UTC)
- Expired
- Mar 21, 2005, 9:00 PM CST
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 26 counties
Atoka County, OK, Cherokee County, OK, Coal County, OK, Creek County, OK, Haskell County, OK, Hughes County, OK, Latimer County, OK, LeFlore County, OK, Lincoln County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Pittsburg 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), 101 km from the middle of the area, began a volume at 01:01 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
Norman, OK (KOUN), launched 00:00Z, 1.0 hours before the alert went out and 148 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
- 142 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 2171 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 54 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 |
|---|---|---|---|---|
| Mar 21, 8:29 PM CST | Mesoscale Discussion | SPC | Choctaw, McCurtain | 91 min |
| Mar 21, 10:12 PM CST | Mesoscale Discussion | SPC | Adair, Cherokee, Craig, Delaware, Haskell, Latimer and 11 more | 63 min |
| Mar 21, 10:15 PM CST | Severe Thunderstorm Watch | SPC | Adair, Cherokee, Delaware, Haskell, Latimer, LeFlore and 6 more | 6 hr |
| Mar 21, 11:09 PM CST | Mesoscale Discussion | SPC | Choctaw, McCurtain | 96 min |
| Mar 22, 2:20 AM CST | Mesoscale Discussion | SPC | Adair, Cherokee, Delaware, Haskell, Latimer, LeFlore and 6 more | 85 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.