Alert archive / Oklahoma / Mesoscale Discussions in 2025
Mesoscale Discussion 607
The Storm Prediction Center issued this mesoscale discussion at Apr 29, 2025, 3:35 PM CDT for Benton County, Crawford County, Washington County, Arkansas; 24 counties in Oklahoma. It was in force for 115 min.
The area
The outline as issued.
The facts
- Issued
- Apr 29, 2025, 3:35 PM CDT (20:35 UTC)
- Expired
- Apr 29, 2025, 5:30 PM CDT
- In force
- 115 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch possible
- Chance of a watch
- 40%
All 27 counties
Benton County, AR, Crawford County, AR, Washington County, AR, Adair County, OK, Cherokee County, OK, Creek County, OK, Delaware 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, Noble County, OK, Okfuskee County, OK, Okmulgee County, OK, Pawnee County, OK, Payne County, OK, Pittsburg County, OK, Pottawatomie County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK
The radar
The Tulsa radar (KINX), 77 km from the middle of the area, began a volume at 20:34 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 12:00Z, 8.6 hours before the alert went out and 237 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
- 608 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 932 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 78 m²/s²
- 0-3 km storm-relative helicity
- 13 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.3
The text
As transmitted.
066
ACUS11 KWNS 292036
SWOMCD
SPC MCD 292035
ARZ000-OKZ000-292230-
Mesoscale Discussion 0607
NWS Storm Prediction Center Norman OK
0335 PM CDT Tue Apr 29 2025
Areas affected...Parts of eastern Oklahoma into Northwest Arkansas
Concerning...Severe potential...Watch possible
Valid 292035Z - 292230Z
Probability of Watch Issuance...40 percent
SUMMARY...Storms that are currently elevated may produce marginally
severe hail. A watch is not anticipated in the short term, but
trends will be monitored.
DISCUSSION...Storms in central Oklahoma have remained elevated and
sub-severe so far. The observed 18Z Norman sounding showed modestly
steep mid-level lapse rates, but relatively weak buoyancy due to
cloud cover/precipitation. This activity will generally move to the
east/northeast behind an outflow boundary. Recent surface
observations have shown some airmass modification/recovery in
east-central Oklahoma where temperatures have warmed back into the
low 70s. There is at least low potential that storms nearest to the
outflow boundary could become near to surface based. A locally
greater severe threat would be possible in that scenario. Overall,
however, storms will primarily be capable of marginally severe hail
and perhaps isolated damaging gusts.
..Wendt/Hart.. 04/29/2025
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...TSA...OUN...
LAT...LON 34979457 34769485 34579564 34649648 34839687 35269723
36169746 36339747 36479716 36539624 36409425 35859399
35349438 34979457
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 INSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 2:37 AM CDT | Severe Thunderstorm Watch | SPC | Benton, Carroll, Madison, Washington | 7 hr |
| Apr 29, 5:52 AM CDT | Mesoscale Discussion | SPC | Benton | 3 hr |
| Apr 29, 8:30 AM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Clay, Cleburne and 15 more | 90 min |
| Apr 29, 8:56 AM CDT | Severe Thunderstorm Watch | SPC | Baxter, Boone, Fulton, Izard, Lawrence, Marion and 5 more | 6 hr |
| Apr 28, 8:55 PM CDT | Mesoscale Discussion | SPC | Comanche, Jackson, Kiowa | 65 min |
| Apr 29, 12:50 AM CDT | Mesoscale Discussion | SPC | Alfalfa, Blaine, Craig, Creek, Custer, Delaware and 22 more | 115 min |
| Apr 29, 3:06 AM CDT | Mesoscale Discussion | SPC | Comanche, Cotton, Jackson, Jefferson, Stephens, Tillman | 114 min |
| Apr 29, 1:10 PM CDT | Mesoscale Discussion | SPC | Cotton, Jefferson, Stephens, Tillman | 2 hr |
| Apr 29, 2:01 PM CDT | Severe Thunderstorm Watch | SPC | Caddo, Canadian, Cleveland, Comanche, Garvin, Grady and 12 more | 9 hr |
| Apr 29, 5:55 PM CDT | Mesoscale Discussion | SPC | Carter, Comanche, Cotton, Garvin, Grady, Jefferson and 5 more | 95 min |
| Apr 29, 6:25 PM CDT | Tornado Watch | SPC | Atoka, Bryan, Carter, Coal, Cotton, Garvin and 9 more | 7 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2025Mesoscale Discussions in Arkansas, 2025Every mesoscale discussion in 2025
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.