Alert archive / Kansas / Special Weather Statements in 2021

Special Weather Statement, NWS Topeka, KS

August 27, 2021Republic County, Kansas

NWS Topeka, KS issued this special weather statement at Aug 27, 2021, 6:27 PM CDT for Republic County, Kansas. It was in force for 48 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: Aug 27, 2021, 6:27 PM CDT (23:27 UTC)
Expired: Aug 27, 2021, 7:15 PM CDT
In force: 48 min
Issued by: NWS Topeka, KS
Hail: 0.25 in
Wind: 50

County Republic County, KS

The radar

The Grand Island radar (KUEX), 103 km from the middle of the area, began a volume at 23:28 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

Omaha, NE (KOAX), launched 12:00Z, 11.5 hours before the alert went out and 176 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 956 J/kg
Mixed-layer CIN: -243 J/kg
Mixed-layer LCL: 1443 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 190 m²/s²
0-3 km storm-relative helicity: 165 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

As transmitted.

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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 Aug 27, 6:20 PM CDT, 7 minutes earlier.

Area forecast discussion, Aug 27, 6:20 PM CDT, 7 minutes before

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Hazardous weather outlook, Aug 27, 3:25 PM CDT, 3 hours 2 minutes before

Hazardous Weather Outlook
National Weather Service Topeka KS
325 PM CDT Fri Aug 27 2021

KSZ008>012-020>024-026-034>040-054>056-058-059-282030-
Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley-
Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris-
Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson-
325 PM CDT Fri Aug 27 2021

This hazardous weather outlook is for east central...north
central and northeast Kansas.

.DAY ONE...Tonight

There will be a slight chance for thunderstorms this afternoon and
early evening across portions of north central KS.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Thunderstorms will be possible late Saturday night across north
central KS. Some of these storms may be strong to severe.

.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, Aug 27, 4:11 PM CDT, 2 hours 16 minutes before

Special Weather Statement
National Weather Service Topeka KS
411 PM CDT Fri Aug 27 2021

KSZ008-009-272215-
Republic-Washington-
411 PM CDT Fri Aug 27 2021

...Strong thunderstorms will impact portions of Republic and
northwestern Washington Counties through 515 PM CDT...

At 411 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Narka to 4 miles south of Formoso.
Movement was northeast at 25 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Belleville, Scandia, Courtland, Norway, Munden, Narka and Mahaska.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4000 9707 3965 9784 3966 9793 3986 9793
      4000 9759
TIME...MOT...LOC 2111Z 241DEG 22KT 3992 9744 3971 9800

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Baerg

Special weather statement, Aug 27, 5:11 PM CDT, 1 hour 16 minutes before

Special Weather Statement
National Weather Service Topeka KS
511 PM CDT Fri Aug 27 2021

KSZ008-272245-
Republic-
511 PM CDT Fri Aug 27 2021

...A strong thunderstorm will impact portions of northwestern
Republic County through 545 PM CDT...

At 511 PM CDT, Doppler radar was tracking a strong thunderstorm 5
miles east of Lovewell State Park, moving northeast at 20 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Republic.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4000 9763 3983 9793 4000 9793
TIME...MOT...LOC 2211Z 227DEG 19KT 3991 9794

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Baerg

Special weather statement, Aug 27, 5:43 PM CDT, 44 minutes before

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Special weather statement, Aug 27, 6:27 PM CDT, 0 minutes before

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The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 27, 4:11 PM CDT	Special Weather Statement	TOP	Republic	64 min
Aug 27, 4:27 PM CDT	Severe Thunderstorm Warning	TOP	Republic, Washington	48 min
Aug 27, 5:05 PM CDT	Areal Flood Advisory	TOP	Republic, Washington	3 hr
Aug 27, 5:11 PM CDT	Special Weather Statement	TOP	Republic	34 min
Aug 27, 5:15 PM CDT	Severe Thunderstorm Warning	TOP	Republic, Washington	28 min
Aug 27, 5:43 PM CDT	Special Weather Statement	TOP	Washington	32 min

Nearby

Special Weather Statements in Kansas, 2021 Every 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.