Alert archive / Kansas / Severe Thunderstorm Watches in 2021
Severe Thunderstorm Watch 202
The Storm Prediction Center issued this severe thunderstorm watch at May 24, 2021, 10:46 PM CDT for 10 counties in Kansas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 24, 2021, 10:46 PM CDT (03:46 UTC)
- Expired
- May 25, 2021, 12:59 AM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
Counties Clark County, KS, Comanche County, KS, Finney County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Haskell County, KS, Kiowa County, KS, Meade County, KS, Seward County, KS
The radar
The Dodge City radar (KDDC), 36 km from the middle of the area, began a volume at 03:50 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 50%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 11:12 PM CDT | Severe Thunderstorm Warning | DDC | Grant, Haskell | 33 min |
| May 24, 11:39 PM CDT | Severe Thunderstorm Warning | DDC | Haskell, Seward | 36 min |
| May 25, 12:14 AM CDT | Severe Thunderstorm Warning | DDC | Gray, Haskell, Meade, Seward | 29 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Dodge City, (KDDC), launched 00:00Z, 3.8 hours before the alert went out and 42 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
- 520 J/kg
- Mixed-layer CIN
- -135 J/kg
- Mixed-layer LCL
- 1195 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted.
472
WWUS20 KWNS 250338
SEL2
SPC WW 250338
KSZ000-250700-
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 202
NWS Storm Prediction Center Norman OK
1035 PM CDT Mon May 24 2021
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southwestern Kansas
* Effective this Monday night and Tuesday morning from 1035 PM
until 200 AM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...A couple supercells with a history of severe to
significant/2-inch hail may persist for a few more hours over the
watch area with aid from a low-level jet, before strengthening
capping overcomes internal lift and weakens the convection. A
tornado cannot be ruled out for another hour or so, especially with
the lead storm, but the main threat is transitioning to hail, with
locally severe gusts also possible.
The severe thunderstorm watch area is approximately along and 30
statute miles north and south of a line from 35 miles west southwest
of Garden City KS to 60 miles east southeast of Dodge City KS. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU2).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 201...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
29025.
...EdwardsSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 7:33 PM CDT | Mesoscale Discussion | SPC | Barton, Ellis, Gove, Graham, Jewell, Lincoln and 9 more | 57 min |
| May 24, 8:07 PM CDT | Mesoscale Discussion | SPC | Finney, Grant, Gray, Hamilton, Haskell, Kearny and 4 more | 83 min |
| May 24, 11:41 PM CDT | Mesoscale Discussion | SPC | Greeley, Sherman, Wallace, Wichita | 94 min |
| May 25, 4:04 AM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Graham, Norton, Rawlins, Sheridan and 3 more | 116 min |
Nearby
Severe Thunderstorm Watches in Kansas, 2021Every severe thunderstorm watch 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.