Alert archive / Kansas / Special Weather Statements in 2021
Special Weather Statement, NWS Topeka, KS
NWS Topeka, KS issued this special weather statement at Nov 10, 2021, 4:00 PM CST for Lyon County, Kansas. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Nov 10, 2021, 4:00 PM CST (22:00 UTC)
- Expired
- Nov 10, 2021, 4:30 PM CST
- In force
- 30 min
- Issued by
- NWS Topeka, KS
- Hail
- 0.75 in
- Wind
- 40
County Lyon County, KS
The radar
The Topeka radar (KTWX), 35 km from the middle of the area, began a volume at 22:04 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
Topeka, KS (KTOP), launched 12:00Z, 10.0 hours before the alert went out and 53 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
- 24 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 634 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 136 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Topeka, KS wrote its last area forecast discussion before this special weather statement went out at Nov 10, 2:56 PM CST, 1 hour 4 minutes earlier.
Area forecast discussion, Nov 10, 2:56 PM CST, 1 hour 4 minutes before
Area Forecast Discussion National Weather Service Topeka KS 256 PM CST Wed Nov 10 2021 .DISCUSSION... Issued at 255 PM CST Wed Nov 10 2021 A few storms continue through this afternoon before clearing the area by this evening. A hard freeze covers the entire forecast area by Saturday morning with temperatures into the middle 20s and wind chills dipping into the teens. Currently, the upper air pattern is characterized by a high amplitude trough extending through the center of the CONUS. A warm front has moved just north of the KS/NE state line and a cold front is now advancing east into north central KS. This will continue through this evening and the cold front should push through by around midnight. A few strong to severe storms may continue through this afternoon but push east of the area by this evening as the cold front advances east. The main line of storms has moved through northeastern KS earlier and produced 60 mph wind gusts as it did. It is possible enough destabilization could take place over the next hour to help some updrafts become more robust. There is a severe storm watch over portions of the area through this afternoon into early this evening to account for a few stronger storms that could briefly become severe. It is appears that this threat has begun to wane but still not totally ruling out a storm or two could pose a wind hazard mainly. It appears the brief spin-up threat has passed with earlier convection. Into Thursday and Friday, northwest flow increases and winds increase but not thinking gradient flow will be strong enough at this time to prompt a wind advisory. Temperatures turn colder into Saturday morning with a secondary push of cold air from the northern Plains. Temps fall into the middle 20s with wind chills dipping into the teens. Northern stream flow remains mainly to the north of the area into next week allowing for temperatures to rebound with southerly flow. Should see upper 50s to middle 60s by the middle part of next week. Keeping the forecast mainly dry for now. && .AVIATION...(For the 18Z TAFS through 18Z Thursday afternoon) Issued at 1137 AM CST Wed Nov 10 2021 Storms continue to develop over the area and progress generally to the east for the balance of the afternoon. Thinking IFR category restrictions from now on will be along with heavier showers or storms. Winds continue to veer as the cold front advances east. Thinking that skies scatter quickly after FROPA as dry air works into the area. Have increased the gusts out of the northwest behind the front as well through this evening. && .TOP WATCHES/WARNINGS/ADVISORIES... NONE. && DISCUSSION...Drake AVIATION...Drake
Hazardous weather outlook, Nov 10, 3:00 PM CST, 1 hour before
Hazardous Weather Outlook National Weather Service Topeka KS 300 PM CST Wed Nov 10 2021 KSZ008>012-020>024-026-034>040-054>056-058-059-112100- Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley- Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris- Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson- 300 PM CST Wed Nov 10 2021 This hazardous weather outlook is for east central...north central and northeast Kansas. .DAY ONE...Tonight A couple strong to severe storms are possible across eastern portions of the area through this afternoon and early evening. These storms may produce large hail, strong wind gusts, and locally heavy rainfall. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed through tonight. && More detailed information can be accessed at... http://www.weather.gov/top/sitrep
In the hours before
Special weather statement, Nov 10, 1:02 PM CST, 2 hours 58 minutes before
Special Weather Statement
National Weather Service Topeka KS
102 PM CST Wed Nov 10 2021
KSZ011-012-024-101945-
Brown-Jackson-Nemaha-
102 PM CST Wed Nov 10 2021
...A strong thunderstorm will impact portions of north central
Jackson, southeastern Nemaha and western Brown Counties through 145
PM CST...
At 102 PM CST, Doppler radar was tracking a strong thunderstorm near
Goff, moving northeast at 35 mph.
HAZARD...Winds in excess of 40 mph and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Hiawatha, Sabetha, Wetmore, Fairview, Morrill, Corning, Goff,
Powhattan, Kickapoo Reservation and Woodlawn.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3956 9580 3962 9606 3998 9578 3982 9550
TIME...MOT...LOC 1902Z 216DEG 30KT 3964 9591
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH
CPSpecial weather statement, Nov 10, 1:38 PM CST, 2 hours 22 minutes before
Special Weather Statement
National Weather Service Topeka KS
138 PM CST Wed Nov 10 2021
KSZ036>038-102015-
Wabaunsee-Geary-Morris-
138 PM CST Wed Nov 10 2021
...Strong thunderstorms will impact portions of southeastern Geary,
eastern Morris and southwestern Wabaunsee Counties through 215 PM
CST...
At 137 PM CST, Doppler radar was tracking strong thunderstorms along
a line extending from near Dwight to near Wilsey. Movement was
northeast at 35 mph.
HAZARD...Wind gusts up to 50 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Alta Vista, Dwight, Wilsey, Parkerville and Volland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3885 9665 3904 9652 3904 9637 3877 9639
3856 9675
TIME...MOT...LOC 1937Z 221DEG 32KT 3884 9663 3862 9670
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
ReeseLocal storm report, Nov 10, 2:20 PM CST, 1 hour 40 minutes before
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</html>Local storm report, Nov 10, 2:24 PM CST, 1 hour 36 minutes before
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</html>Special weather statement, Nov 10, 2:26 PM CST, 1 hour 34 minutes before
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</html>Special weather statement, Nov 10, 4:00 PM CST, 0 minutes before
Special Weather Statement
National Weather Service Topeka KS
400 PM CST Wed Nov 10 2021
KSZ038-054-055-102230-
Wabaunsee-Lyon-Osage-
400 PM CST Wed Nov 10 2021
...A strong thunderstorm will impact portions of southeastern
Wabaunsee, northwestern Osage and northern Lyon Counties through 430
PM CST...
At 359 PM CST, Doppler radar was tracking a strong thunderstorm near
Bushong, moving northeast at 45 mph.
HAZARD...Winds in excess of 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Osage City, Americus, Harveyville, Allen, Admire and Bushong.
This includes Kansas Turnpike between mile markers 136 and 160.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 800 PM CST for
east central Kansas.
&&
LAT...LON 3869 9635 3887 9595 3887 9593 3860 9578
3846 9634
TIME...MOT...LOC 2159Z 239DEG 49KT 3860 9626
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
GarganThe office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 10, 11:45 AM CST | Special Weather Statement | TOP | Morris | 15 min |
| Nov 10, 12:03 PM CST | Special Weather Statement | TOP | Morris | 27 min |
| Nov 10, 12:22 PM CST | Special Weather Statement | TOP | Wabaunsee | 23 min |
| Nov 10, 12:46 PM CST | Special Weather Statement | TOP | Jackson, Shawnee, Wabaunsee | 29 min |
| Nov 10, 1:02 PM CST | Special Weather Statement | TOP | Brown | 43 min |
| Nov 10, 1:17 PM CST | Severe Thunderstorm Warning | TOP | Brown, Jackson, Nemaha | 28 min |
| Nov 10, 1:21 PM CST | Areal Flood Advisory | TOP | Jackson, Nemaha, Pottawatomie | 114 min |
| Nov 10, 1:30 PM CST | Severe Thunderstorm Warning | TOP | Brown, Nemaha | 30 min |
| Nov 10, 1:38 PM CST | Special Weather Statement | TOP | Morris | 37 min |
| Nov 10, 2:26 PM CST | Special Weather Statement | TOP | Jackson | 34 min |
| Nov 10, 4:09 PM CST | Areal Flood Advisory | TOP | Pottawatomie, Riley | 3 hr |
| Nov 10, 4:20 PM CST | Special Weather Statement | TOP | Coffey | 25 min |
| Nov 10, 4:27 PM CST | Special Weather Statement | TOP | Osage | 33 min |
| Nov 10, 4:46 PM CST | Special Weather Statement | TOP | Coffey | 29 min |
| Nov 10, 5:22 PM CST | Areal Flood Advisory | TOP | Brown, Jackson, Nemaha, Pottawatomie | 2 hr |
| Nov 10, 5:39 PM CST | Special Weather Statement | TOP | Jefferson | 36 min |
| Nov 10, 5:44 PM CST | Special Weather Statement | TOP | Osage, Shawnee | 31 min |
| Nov 10, 5:54 PM CST | Special Weather Statement | TOP | Coffey | 36 min |
Nearby
Special Weather Statements in Kansas, 2021Every special weather statement 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.