Alert archive / Kansas / Mesoscale Discussions in 2021
Mesoscale Discussion 723
The Storm Prediction Center issued this mesoscale discussion at May 24, 2021, 3:42 PM CDT for 5 counties in Kansas. It was in force for 63 min.
The area
The outline as issued.
The facts
- Issued
- May 24, 2021, 3:42 PM CDT (20:42 UTC)
- Expired
- May 24, 2021, 4:45 PM CDT
- In force
- 63 min
- Issued by
- the Storm Prediction Center
- Concerning
- Tornado watch 200
Counties Gove County, KS, Logan County, KS, Rawlins County, KS, Sheridan County, KS, Thomas County, KS
The radar
The Goodland radar (KGLD), 65 km from the middle of the area, began a volume at 20:46 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
Dodge City, (KDDC), launched 12:00Z, 8.7 hours before the alert went out and 185 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
- 26 J/kg
- Mixed-layer CIN
- -227 J/kg
- Mixed-layer LCL
- 650 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 185 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
362
ACUS11 KWNS 242042
SWOMCD
SPC MCD 242042
KSZ000-242145-
Mesoscale Discussion 0723
NWS Storm Prediction Center Norman OK
0342 PM CDT Mon May 24 2021
Areas affected...portions of northwest KS
Concerning...Tornado Watch 200...
Valid 242042Z - 242145Z
The severe weather threat for Tornado Watch 200 continues.
SUMMARY...The tornado risk over the next 1-2 hours will be greatest
across parts of northwest KS in the vicinity of an outflow boundary.
DISCUSSION...Several tornadoes have been reported recently across
northeast Wallace/northwest Logan and southwest Thomas counties in
northwest KS. The supercell associated with this tornadic activity
is tracking northeastward in the vicinity of an outflow boundary.
This boundary is enhancing low level vorticity and low level shear,
and supercells in this vicinity are likely to continue producing
tornadoes over the next 1-2 hours. A mature supercell further south
over northern Wichita and southern Logan county has shown moderate
rotation over the past hour. As this cell lifts northeast, it is
possible the tornado threat could increase with this cell as well as
it encounters the outflow boundary and more favorable low level
shear.
..Leitman.. 05/24/2021
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...DDC...GLD...
LAT...LON 38540116 38570148 39030159 39350155 39620139 39820115
39870092 39780051 39610026 39040010 38720037 38540116SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 7:32 PM CDT | Mesoscale Discussion | SPC | Morton | 118 min |
| May 23, 7:53 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Sherman | 67 min |
| May 23, 8:12 PM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Decatur, Gove, Graham, Greeley, Logan and 7 more | 5 hr |
| May 23, 9:56 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Logan, Rawlins, Sheridan, Sherman and 2 more | 2 hr |
| May 24, 1:00 PM CDT | Mesoscale Discussion | SPC | Finney, Gove, Grant, Gray, Greeley, Hamilton and 12 more | 2 hr |
| May 24, 1:29 PM CDT | Tornado Watch | SPC | Cheyenne, Decatur, Finney, Gove, Graham, Grant and 18 more | 9 hr |
| May 24, 5:37 PM CDT | Mesoscale Discussion | SPC | Decatur, Finney, Gove, Grant, Hamilton, Kearny and 7 more | 113 min |
| May 24, 6:39 PM CDT | Mesoscale Discussion | SPC | Decatur, Norton | 36 min |
Nearby
Mesoscale Discussions in Kansas, 2021Every mesoscale discussion in 2021
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.