Alert archive / Kansas / Mesoscale Discussions in 2021
Mesoscale Discussion 483
The Storm Prediction Center issued this mesoscale discussion at May 2, 2021, 10:26 PM CDT for 15 counties in Kansas. It was in force for 94 min.
The area
The outline as issued.
The facts
- Issued
- May 2, 2021, 10:26 PM CDT (03:26 UTC)
- Expired
- May 3, 2021, 12:00 AM CDT
- In force
- 94 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe thunderstorm watch 126
Counties Barton County, KS, Clark County, KS, Comanche County, KS, Edwards County, KS, Ellsworth County, KS, Ford County, KS, Kiowa County, KS, Lincoln County, KS, Pawnee County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Rush County, KS, Russell County, KS, Stafford County, KS
The radar
The Dodge City radar (KDDC), 78 km from the middle of the area, began a volume at 03:25 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 00:00Z, 3.4 hours before the alert went out and 72 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
- 1069 J/kg
- Mixed-layer CIN
- -146 J/kg
- Mixed-layer LCL
- 1754 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 110 m²/s²
- 0-3 km storm-relative helicity
- 394 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 12.1
The text
As transmitted.
509
ACUS11 KWNS 030326
SWOMCD
SPC MCD 030326
KSZ000-030500-
Mesoscale Discussion 0483
NWS Storm Prediction Center Norman OK
1026 PM CDT Sun May 02 2021
Areas affected...Portions of central KS
Concerning...Severe Thunderstorm Watch 126...
Valid 030326Z - 030500Z
The severe weather threat for Severe Thunderstorm Watch 126
continues.
SUMMARY...An isolated strong to severe wind gust threat will
continue in the short term, but storms should slowly weaken as they
move eastward.
DISCUSSION...Multiple measured severe wind gusts have occurred in
the past couple of hours with a squall line moving eastward across
central KS. Recent radar trends have shown a gradual weakening of
the line, particularly across south-central KS where outflow has
surged well ahead of reflectivity. Still, isolated strong to severe
wind gusts will remain possible for the next hour or two as the line
continues eastward across parts of central KS. Current expectations
are for this activity to gradually weaken beyond 05Z as it moves
into eastern KS and encounters a less unstable airmass with
increasing convective inhibition. Accordingly, downstream watch
issuance is not anticipated at this time, but a small extension in
area of Severe Thunderstorm Watch 126 cannot be ruled out if
convective trends warrant.
..Gleason.. 05/03/2021
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...ICT...DDC...
LAT...LON 37169999 38209980 39109908 39129801 38159792 37389840
37109899 37049957 37169999SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 7:04 PM CDT | Mesoscale Discussion | SPC | Decatur, Gove, Graham, Logan, Norton, Phillips and 4 more | 86 min |
| May 2, 8:36 PM CDT | Mesoscale Discussion | SPC | Ellis, Finney, Ford, Gove, Graham, Gray and 13 more | 84 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.