Alert archive / Kansas / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 157, NWS Topeka, KS
NWS Topeka, KS issued this severe thunderstorm warning at Jul 26, 2020, 5:23 PM CDT for Marshall County, Kansas. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 26, 2020, 5:23 PM CDT (22:23 UTC)
- Expired
- Jul 26, 2020, 6:00 PM CDT
- In force
- 37 min
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Marshall County, KS
The radar
The Topeka radar (KTWX), 91 km from the middle of the area, began a volume at 22:23 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, 10.4 hours before the alert went out and 369 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
- 482 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 1366 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 114 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 26, 3:54 PM CDT, 1 hour 29 minutes earlier.
Area forecast discussion, Jul 26, 3:54 PM CDT, 1 hour 29 minutes before
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</html>Hazardous weather outlook, Jul 26, 3:35 PM CDT, 1 hour 48 minutes before
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</html>In the hours before
Special weather statement, Jul 26, 3:50 PM CDT, 1 hour 33 minutes before
Special Weather Statement
National Weather Service Topeka KS
350 PM CDT Sun Jul 26 2020
KSZ011-012-262145-
Brown-Nemaha-
350 PM CDT Sun Jul 26 2020
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN NEMAHA AND BROWN
COUNTIES UNTIL 445 PM CDT...
At 350 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 3 miles southwest of Forest City to near Hamlin
to 3 miles southeast of Bern. Movement was southeast at 20 mph.
Wind gusts up to 50 mph will be possible with these storms.
Locations impacted include...
Hiawatha, Sabetha, Fairview, Robinson, Morrill, Bern, Reserve, Oneida
and Hamlin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4000 9534 3979 9534 3977 9557 3981 9601
4000 9605
TIME...MOT...LOC 2050Z 336DEG 15KT 3995 9523 3990 9564 3994 9592
BaergSpecial weather statement, Jul 26, 4:52 PM CDT, 31 minutes before
Special Weather Statement National Weather Service Topeka KS 452 PM CDT Sun Jul 26 2020 KSZ009-262215- Washington- 452 PM CDT Sun Jul 26 2020 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN WASHINGTON COUNTY UNTIL 515 PM CDT... At 451 PM CDT, Doppler radar was tracking a strong thunderstorm 5 miles east of Mahaska, moving east at 15 mph. Wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Mahaska. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 4000 9702 3985 9705 3987 9737 4000 9737 TIME...MOT...LOC 2151Z 277DEG 15KT 3999 9725 Baerg
Special weather statement, Jul 26, 4:54 PM CDT, 29 minutes before
Special Weather Statement National Weather Service Topeka KS 454 PM CDT Sun Jul 26 2020 KSZ008-262230- Republic- 454 PM CDT Sun Jul 26 2020 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN REPUBLIC COUNTY UNTIL 530 PM CDT... At 454 PM CDT, Doppler radar was tracking a strong thunderstorm over Chester, moving southeast at 20 mph. Wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Belleville and Munden. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3983 9764 4000 9778 4000 9737 TIME...MOT...LOC 2154Z 311DEG 17KT 4001 9765 Baerg
Special weather statement, Jul 26, 5:18 PM CDT, 5 minutes before
Special Weather Statement National Weather Service Topeka KS 518 PM CDT Sun Jul 26 2020 KSZ009-010-262300- Washington-Marshall- 518 PM CDT Sun Jul 26 2020 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN WASHINGTON AND NORTHERN MARSHALL COUNTIES UNTIL 600 PM CDT... At 518 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from 6 miles northeast of Oketo to 3 miles southeast of Narka. Movement was southeast at 10 mph. Wind gusts up to 50 mph will be possible with these storms. Locations impacted include... Marysville, Hanover, Summerfield, Morrowville, Haddam, Mahaska, Oketo, Hollenberg and Bremen. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with these storms, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with these storms. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 4000 9624 3988 9624 3981 9737 4000 9737 TIME...MOT...LOC 2218Z 303DEG 10KT 4001 9650 3993 9737 Baerg
The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 3:45 AM CDT | Heat Advisory | TOP | Anderson, Brown, Clay, Cloud, Coffey, Dickinson and 17 more | 15 hr |
| Jul 26, 3:50 PM CDT | Special Weather Statement | TOP | Brown | 55 min |
| Jul 26, 4:52 PM CDT | Special Weather Statement | TOP | Washington | 23 min |
| Jul 26, 4:54 PM CDT | Special Weather Statement | TOP | Republic | 36 min |
| Jul 26, 5:18 PM CDT | Special Weather Statement | TOP | Marshall | 42 min |
| Jul 26, 5:55 PM CDT | Special Weather Statement | TOP | Marshall, Washington | 65 min |
| Jul 26, 6:03 PM CDT | Areal Flood Advisory | TOP | Marshall, Republic, Washington | 3 hr |
Nearby
Severe Thunderstorm Warnings in Kansas, 2020Every severe thunderstorm warning in 2020
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.