Alert archive / Oklahoma / Mesoscale Discussions in 2016
Mesoscale Discussion 258
The Storm Prediction Center issued this mesoscale discussion at Mar 23, 2016, 8:49 PM CDT for 6 counties in Arkansas; Barry County, McDonald County, Newton County, Missouri; 13 counties in Oklahoma. It was in force for 56 min.
The area
The outline as issued.
The facts
- Issued
- Mar 23, 2016, 8:49 PM CDT (01:49 UTC)
- Expired
- Mar 23, 2016, 9:45 PM CDT
- In force
- 56 min
- Issued by
- the Storm Prediction Center
All 22 counties
Benton County, AR, Carroll County, AR, Crawford County, AR, Madison County, AR, Sebastian County, AR, Washington County, AR, Barry County, MO, McDonald County, MO, Newton County, MO, Adair County, OK, Atoka County, OK, Bryan County, OK, Cherokee County, OK, Choctaw County, OK, Delaware County, OK, Haskell County, OK, Latimer County, OK, LeFlore County, OK, Muskogee County, OK, Pittsburg County, OK, Pushmataha County, OK, Sequoyah County, OK
The radar
The Western Arkansas radar (KSRX), 67 km from the middle of the area, began a volume at 01:52 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
Springfield, MO (KSGF), launched 00:00Z, 1.8 hours before the alert went out and 198 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
- 243 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 1307 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 210 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.0
The text
As transmitted.
268
ACUS11 KWNS 240149
SWOMCD
SPC MCD 240149
ARZ000-MOZ000-OKZ000-TXZ000-240245-
MESOSCALE DISCUSSION 0258
NWS STORM PREDICTION CENTER NORMAN OK
0849 PM CDT WED MAR 23 2016
AREAS AFFECTED...EASTERN OK...NORTHWEST AR...FAR SW MO
CONCERNING...SEVERE THUNDERSTORM WATCH 52...
VALID 240149Z - 240245Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 52
CONTINUES.
SUMMARY...LARGE HAIL AND STRONG WINDS CONTINUE TO BE POSSIBLE ACROSS
THE WATCH AREA. A COUPLE OF STRONGER STORMS MAY TRACK INTO SOUTHWEST
MO...BUT A NEW WATCH IS NOT EXPECTED ACROSS THAT AREA.
DISCUSSION...SCATTERED SEVERE THUNDERSTORMS WILL CONTINUE TO TO
PROGRESS NORTHEAST THIS EVENING. INSTABILITY WANES WITH NORTHWARD
EXTENT FROM NORTHEAST OK INTO FAR SOUTHWEST MO. HOWEVER...00Z RAOB
FROM SGF SHOWS STEEP LAPSE RATES...AND A MARGINAL HAIL/WIND THREAT
SHOULD EXTEND NORTH OF THE WATCH ACROSS A NARROW CORRIDOR IN
SOUTHWEST MO. A NEW WATCH IS NOT EXPECTED AT THIS TIME ACROSS
SOUTHWEST MO GIVEN THE LIMITED AREAL EXTENT AND MARGINAL NATURE OF
THE THREAT. ELSEWHERE ACROSS THE WATCH AREA...CLUSTERS OF STORMS
WILL CONTINUE TO POSE A LARGE HAIL AND WIND THREAT AND A TRANSITION
TO BOWING/LINEAR SEGMENTS IS EXPECTED. WHILE THE TORNADO THREAT
CONTINUES TO BE MARGINAL...ONE CAN NOT BE RULED OUT.
..LEITMAN.. 03/24/2016
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...LZK...SGF...SHV...TSA...FWD...OUN...
LAT...LON 36929467 36999416 36859363 36309342 35099424 33839528
33849602 33999641 34179643 34709603 35189565 36089537
36929467SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 23, 11:01 PM CDT | Mesoscale Discussion | SPC | Carroll, Crawford, Franklin, Johnson, Logan, Madison and 6 more | 59 min |
| Mar 23, 7:45 PM CDT | Mesoscale Discussion | SPC | Caldwell, Daviess, Grundy, Harrison, Linn, Livingston and 3 more | 2 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2016Mesoscale Discussions in Arkansas, 2016Mesoscale Discussions in Missouri, 2016Every mesoscale discussion in 2016
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.