Alert archive / Kansas / Tornado Watches in 2021
Tornado Watch 524
The Storm Prediction Center issued this tornado watch at Oct 12, 2021, 9:35 PM CDT for 31 counties in Kansas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 12, 2021, 9:35 PM CDT (02:35 UTC)
- Expired
- Oct 13, 2021, 5:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 70 kt
All 31 counties
Barber County, KS, Barton County, KS, Butler County, KS, Chase County, KS, Clark County, KS, Comanche County, KS, Cowley County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Ford County, KS, Harper County, KS, Harvey County, KS, Hodgeman County, KS, Kingman County, KS, Kiowa County, KS, Lincoln County, KS, Marion County, KS, McPherson County, KS, Ness County, KS, Pawnee County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Sedgwick County, KS, Stafford County, KS, Sumner County, KS, Trego County, KS
The radar
The Wichita radar (KICT), 117 km from the middle of the area, began a volume at 02:38 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
- 50%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 80%
- One or more gusts of 65 knots or more
- 50%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
22 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 12, 9:46 PM CDT | Severe Thunderstorm Warning | DDC | Finney, Ford, Gray, Haskell, Hodgeman, Meade and 1 more | 44 min |
| Oct 12, 10:02 PM CDT | Severe Thunderstorm Warning | DDC | Finney, Hodgeman, Lane, Ness | 21 min |
| Oct 12, 10:04 PM CDT | Tornado Warning | DDC | Ford, Gray | 11 min |
| Oct 12, 10:14 PM CDT | Tornado Warning | DDC | Ford | 31 min |
| Oct 12, 10:20 PM CDT | Severe Thunderstorm Warning | DDC | Clark, Finney, Ford, Gray, Hodgeman, Meade | 40 min |
| Oct 12, 10:21 PM CDT | Severe Thunderstorm Warning | DDC | Hodgeman, Ness | 39 min |
| Oct 12, 10:36 PM CDT | Tornado Warning | DDC | Ford, Hodgeman | 24 min |
| Oct 12, 10:47 PM CDT | Severe Thunderstorm Warning | DDC | Edwards, Ellis, Hodgeman, Ness, Pawnee, Rush | 58 min |
| Oct 12, 10:51 PM CDT | Severe Thunderstorm Warning | DDC | Edwards, Ford, Hodgeman, Kiowa | 54 min |
| Oct 12, 10:53 PM CDT | Severe Thunderstorm Warning | DDC | Clark, Comanche, Ford, Kiowa, Meade | 67 min |
| Oct 12, 10:58 PM CDT | Tornado Warning | DDC | Clark, Meade | 17 min |
| Oct 12, 11:13 PM CDT | Tornado Warning | DDC | Clark, Ford, Kiowa | 32 min |
| Oct 12, 11:20 PM CDT | Severe Thunderstorm Warning | ICT | Barton, Russell | 70 min |
| Oct 12, 11:41 PM CDT | Severe Thunderstorm Warning | DDC | Edwards, Kiowa, Pawnee, Pratt, Stafford | 38 min |
| Oct 12, 11:44 PM CDT | Severe Thunderstorm Warning | DDC | Clark, Comanche, Kiowa | 35 min |
| Oct 13, 12:12 AM CDT | Tornado Warning | DDC | Edwards, Pawnee, Stafford | 18 min |
| Oct 13, 12:17 AM CDT | Severe Thunderstorm Warning | DDC | Barber, Comanche, Edwards, Kiowa, Pawnee, Pratt and 1 more | 58 min |
| Oct 13, 12:45 AM CDT | Severe Thunderstorm Warning | ICT | Reno, Rice | 60 min |
| Oct 13, 1:09 AM CDT | Severe Thunderstorm Warning | DDC | Barber, Comanche, Pratt, Stafford | 66 min |
| Oct 13, 3:14 AM CDT | Severe Thunderstorm Warning | ICT | Butler, Harvey, Sedgwick | 76 min |
| Oct 13, 3:38 AM CDT | Severe Thunderstorm Warning | ICT | Sumner | 67 min |
| Oct 13, 4:01 AM CDT | Severe Thunderstorm Warning | ICT | Cowley | 52 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, 2.6 hours before the alert went out and 132 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
- 441 J/kg
- Mixed-layer CIN
- -298 J/kg
- Mixed-layer LCL
- 585 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 383 m²/s²
- 0-3 km storm-relative helicity
- 374 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
325
WWUS20 KWNS 130232
SEL4
SPC WW 130232
KSZ000-131000-
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 524
NWS Storm Prediction Center Norman OK
935 PM CDT Tue Oct 12 2021
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Western and Central Kansas
* Effective this Tuesday night and Wednesday morning from 935 PM
until 500 AM CDT.
* Primary threats include...
A few tornadoes possible
Widespread damaging winds likely with isolated significant gusts
to 80 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...A nearly continuous line of storms will continue to
progress east-northeastward across western/central Kansas late this
evening into the overnight. Damaging winds will be the most
prevalent concern, but strengthening low-level shear and a
moistening environment will also support the possibility of a few
tornadoes with the quasi-linear storms.
The tornado watch area is approximately along and 75 statute miles
east and west of a line from 20 miles north northwest of Russell KS
to 20 miles south of Medicine Lodge KS. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU4).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 522...WW 523...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1.5 inches. Extreme turbulence and surface wind
gusts to 70 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 21040.
...GuyerSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 12, 8:56 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Clark, Edwards, Ellis, Ellsworth and 19 more | 64 min |
| Oct 12, 10:40 PM CDT | Severe Thunderstorm Watch | SPC | Clay, Cloud, Dickinson, Geary, Jewell, Mitchell and 9 more | 6 hr |
| Oct 12, 11:34 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Comanche, Edwards, Ellsworth, Harper and 13 more | 86 min |
| Oct 13, 12:54 AM CDT | Mesoscale Discussion | SPC | Clay, Cloud, Jewell, Mitchell, Republic, Washington | 96 min |
| Oct 13, 1:52 AM CDT | Mesoscale Discussion | SPC | Barber, Butler, Chase, Cowley, Harper, Harvey and 7 more | 83 min |
| Oct 13, 2:54 AM CDT | Mesoscale Discussion | SPC | Dickinson, Geary, Marshall, Morris, Pottawatomie, Riley and 2 more | 96 min |
| Oct 13, 3:26 AM CDT | Mesoscale Discussion | SPC | Butler, Chase, Cowley, Marion, Sedgwick, Sumner | 94 min |
| Oct 13, 5:16 AM CDT | Mesoscale Discussion | SPC | Chautauqua, Elk, Labette, Montgomery, Neosho, Wilson and 1 more | 59 min |
| Oct 13, 7:34 AM CDT | Mesoscale Discussion | SPC | Bourbon, Cherokee, Crawford, Labette, Linn | 116 min |
Nearby
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.