Alert archive / Kansas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 101, NWS Topeka, KS
NWS Topeka, KS issued this severe thunderstorm warning at Jul 25, 2012, 6:33 PM CDT for Nemaha County, Kansas. It was in force for 17 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 25, 2012, 6:33 PM CDT (23:33 UTC)
- Expired
- Jul 25, 2012, 6:50 PM CDT
- In force
- 17 min
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Nemaha County, KS
The radar
The Topeka radar (KTWX), 90 km from the middle of the area, began a volume at 23:34 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 25, 6:42 PM CDT | TSTM WND GST 60 | 4 Sw Seneca, KS | DELAYED REPORT. TIME ESTIMATED FROM RADAR. |
| Jul 25, 6:42 PM CDT | HAIL 0.88 | 4 Sw Seneca, KS | DELAYED REPORT. TIME ESTIMATED FROM RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 25, 4:28 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 11.6 hours before the alert went out and 96 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
- 480 J/kg
- Mixed-layer CIN
- -268 J/kg
- Mixed-layer LCL
- 1917 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
487
WUUS53 KTOP 252333
SVRTOP
KSC131-260000-
/O.NEW.KTOP.SV.W.0101.120725T2333Z-120726T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
633 PM CDT WED JUL 25 2012
THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL NEMAHA COUNTY IN NORTHEAST KANSAS...
* UNTIL 700 PM CDT
* AT 630 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR SENECA...AND
MOVING NORTHEAST AT 15 MPH.
HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...PUBLIC. QUARTER SIZED HAIL WAS REPORTED JUST SOUTH OF
BAILEYVILLE APPROXIMATELY 625 PM CDT.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
* LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF CENTRAL NEMAHA COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3977 9599 3975 9611 3982 9619 3987 9612
TIME...MOT...LOC 2332Z 230DEG 14KT 3980 9611
HAIL...1.00IN
WIND...60 MPH
$$
BOWEN2 follow-up statements
205
WWUS53 KTOP 252343
SVSTOP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
643 PM CDT WED JUL 25 2012
KSC131-260000-
/O.CON.KTOP.SV.W.0101.000000T0000Z-120726T0000Z/
NEMAHA KS-
643 PM CDT WED JUL 25 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL NEMAHA
COUNTY UNTIL 700 PM CDT...
AT 639 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR SENECA...AND
MOVING NORTHEAST AT 15 MPH.
HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...TRAINED WEATHER SPOTTERS.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
LOCATIONS IMPACTED INCLUDE...SENECA AND CENTRAL PARTS OF RURAL
NEMAHA COUNTY.
AT 640 PM CDT A TRAINED SPOTTER IN SENECA REPORTED A 60 MPH WIND
GUST.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3978 9608 3982 9614 3986 9610 3977 9599
TIME...MOT...LOC 2342Z 232DEG 15KT 3983 9606
HAIL...1.00IN
WIND...60 MPH
$$
BOWEN979 WWUS53 KTOP 252350 SVSTOP SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 650 PM CDT WED JUL 25 2012 KSC131-260000- /O.CAN.KTOP.SV.W.0101.000000T0000Z-120726T0000Z/ NEMAHA KS- 650 PM CDT WED JUL 25 2012 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL NEMAHA COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF THE WARNED AREA. HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM. IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1200 AM CDT. LAT...LON 3978 9608 3982 9614 3986 9610 3977 9599 TIME...MOT...LOC 2350Z 232DEG 15KT 3985 9603 $$ BOWEN
The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 3:34 PM CDT | Special Weather Statement | TOP | Jackson | 26 min |
| Jul 25, 3:45 PM CDT | Special Weather Statement | TOP | Shawnee | 30 min |
| Jul 25, 4:20 PM CDT | Severe Thunderstorm Warning | TOP | Jackson, Jefferson, Shawnee | 25 min |
| Jul 25, 5:58 PM CDT | Special Weather Statement | TOP | Republic | 32 min |
| Jul 25, 6:13 PM CDT | Special Weather Statement | TOP | Nemaha | 32 min |
| Jul 25, 6:17 PM CDT | Severe Thunderstorm Warning | TOP | Nemaha | 28 min |
Nearby
Severe Thunderstorm Warnings in Kansas, 2012Every severe thunderstorm warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.