Alert archive / Kansas / Special Weather Statements in 2021
Special Weather Statement, NWS Topeka, KS
NWS Topeka, KS issued this special weather statement at Aug 7, 2021, 10:56 PM CDT for Jackson County, Shawnee County, Kansas. It was in force for 34 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 7, 2021, 10:56 PM CDT (03:56 UTC)
- Expired
- Aug 7, 2021, 11:30 PM CDT
- In force
- 34 min
- Issued by
- NWS Topeka, KS
- Hail
- 0.00 in
- Wind
- 50
Counties Jackson County, KS, Shawnee County, KS
The radar
The Topeka radar (KTWX), 58 km from the middle of the area, began a volume at 03:55 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 00:00Z, 3.9 hours before the alert went out and 28 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
- 1803 J/kg
- Mixed-layer CIN
- -63 J/kg
- Mixed-layer LCL
- 1923 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 157 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 7.5
The text
As transmitted.
019
WWUS83 KTOP 080356
SPSTOP
Special Weather Statement
National Weather Service Topeka KS
1056 PM CDT Sat Aug 7 2021
KSZ011-024-026-039-080430-
Shawnee-Jefferson-Jackson-Nemaha-
1056 PM CDT Sat Aug 7 2021
...Strong thunderstorms will impact portions of western Jefferson,
Shawnee, Jackson and southeastern Nemaha Counties through 1130 PM
CDT...
At 1054 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 4 miles north of Circleville to 4 miles south
of Dover. Movement was northeast at 45 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...
Topeka, Holton, Rossville, Tecumseh, Richland, Dover, Silver Lake,
Auburn, Meriden, Hoyt, Wetmore, Mayetta, Whiting, Denison,
Circleville, Netawaka, Willard, Pauline, Grantville and Potawatomi
Reservation.
This includes the following highways...
Interstate 70 between mile markers 346 and 355.
Kansas Turnpike between mile markers 166 and 188.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
northeastern Kansas.
&&
LAT...LON 3887 9550 3887 9595 3966 9594 3965 9556
3942 9557 3942 9551
TIME...MOT...LOC 0354Z 246DEG 40KT 3957 9587 3889 9593
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
$$
ReeseThe office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 8:19 PM CDT | Severe Thunderstorm Warning | TOP | Cloud, Republic | 41 min |
| Aug 7, 8:26 PM CDT | Special Weather Statement | TOP | Cloud, Ottawa | 49 min |
| Aug 7, 8:42 PM CDT | Severe Thunderstorm Warning | TOP | Cloud, Ottawa | 33 min |
| Aug 7, 8:56 PM CDT | Severe Thunderstorm Warning | TOP | Clay, Riley, Washington | 49 min |
| Aug 7, 9:08 PM CDT | Severe Thunderstorm Warning | TOP | Clay, Dickinson, Geary, Morris, Ottawa, Riley | 52 min |
| Aug 7, 9:41 PM CDT | Severe Thunderstorm Warning | TOP | Clay, Marshall, Pottawatomie, Riley, Washington | 49 min |
| Aug 7, 9:49 PM CDT | Severe Thunderstorm Warning | TOP | Geary, Lyon, Morris, Pottawatomie, Riley, Wabaunsee | 41 min |
| Aug 7, 10:28 PM CDT | Special Weather Statement | TOP | Morris, Wabaunsee | 32 min |
| Aug 7, 10:29 PM CDT | Special Weather Statement | TOP | Nemaha | 31 min |
| Aug 7, 11:28 PM CDT | Special Weather Statement | TOP | Brown, Douglas, Jackson, Jefferson, Lyon, Morris and 3 more | 32 min |
| Aug 8, 12:00 AM CDT | Special Weather Statement | TOP | Anderson, Coffey, Douglas, Franklin, Lyon, Osage | 30 min |
| Aug 8, 2:27 PM CDT | Heat Advisory | TOP | Anderson, Brown, Clay, Cloud, Coffey, Dickinson and 17 more | 4 days |
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.