Alert archive / Kansas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 416, NWS Wichita, KS
NWS Wichita, KS issued this severe thunderstorm warning at Aug 17, 2011, 6:14 PM CDT for 4 counties in Kansas. It was in force for 61 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
- Aug 17, 2011, 6:14 PM CDT (23:14 UTC)
- Expired
- Aug 17, 2011, 7:15 PM CDT
- In force
- 61 min
- Issued by
- NWS Wichita, KS
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Harper County, KS, Kingman County, KS, Sedgwick County, KS, Sumner County, KS
The radar
The Wichita radar (KICT), 34 km from the middle of the area, began a volume at 23:17 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 |
|---|---|---|---|
| Aug 17, 6:52 PM CDT | TSTM WND GST 60 | Viola, KS | VIOLA FIRE DEPARTMENT REPORTS AT LEAST 60 MILE PER HOUR WINDS. |
| Aug 17, 6:58 PM CDT | TSTM WND GST 75 | Viola, KS | VIOLA FIRE DEPARTMENT ESTIMATES 65 TO 75 MPH WINDS AND VISIBILITIES REDUCED TO AN EIGHTH OF A MILE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 38 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Lamont, OK (KLMN), launched 12:00Z, 11.2 hours before the alert went out and 94 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
- 266 J/kg
- Mixed-layer CIN
- -320 J/kg
- Mixed-layer LCL
- 1829 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -45 m²/s²
- 0-3 km storm-relative helicity
- -11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
672 WUUS53 KICT 172314 SVRICT KSC077-095-173-191-180015- /O.NEW.KICT.SV.W.0416.110817T2314Z-110818T0015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE WICHITA KS 614 PM CDT WED AUG 17 2011 THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN HARPER COUNTY IN SOUTH CENTRAL KANSAS... SOUTHEASTERN KINGMAN COUNTY IN SOUTH CENTRAL KANSAS... SOUTHWESTERN SEDGWICK COUNTY IN SOUTH CENTRAL KANSAS... NORTHWESTERN SUMNER COUNTY IN SOUTH CENTRAL KANSAS... * UNTIL 715 PM CDT * AT 613 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 7 MILES SOUTHEAST OF NORWICH...OR 20 MILES NORTHEAST OF ANTHONY...AND MOVING NORTHEAST AT 15 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS. * LOCATIONS IMPACTED INCLUDE... NORWICH...CONWAY SPRINGS AND VIOLA. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 3760 9773 3737 9746 3724 9778 3741 9794 TIME...MOT...LOC 2314Z 226DEG 12KT 3737 9778 WIND...HAIL 60MPH 0.75IN $$
1 follow-up statement
214
WWUS53 KICT 172333
SVSICT
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
633 PM CDT WED AUG 17 2011
KSC077-095-172343-
/O.CAN.KICT.SV.W.0416.000000T0000Z-110818T0015Z/
KINGMAN KS-HARPER KS-
633 PM CDT WED AUG 17 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HARPER AND
SOUTHEASTERN KINGMAN COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 3731 9781 3746 9781 3760 9773 3737 9746
3724 9778
TIME...MOT...LOC 2333Z 231DEG 11KT 3740 9773
$$
KSC173-191-180015-
/O.CON.KICT.SV.W.0416.000000T0000Z-110818T0015Z/
SUMNER KS-SEDGWICK KS-
633 PM CDT WED AUG 17 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
SEDGWICK AND NORTHWESTERN SUMNER COUNTIES UNTIL 715 PM CDT...
AT 632 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED 5 MILES WEST OF CONWAY SPRINGS...
OR 21 MILES NORTHWEST OF WELLINGTON...MOVING NORTHEAST AT 15 MPH.
PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.
LOCATIONS IMPACTED INCLUDE...
CONWAY SPRINGS AND VIOLA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 3731 9781 3746 9781 3760 9773 3737 9746
3724 9778
TIME...MOT...LOC 2333Z 231DEG 11KT 3740 9773
WIND...HAIL 60MPH 0.75IN
$$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 Wichita, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 17, 2:55 PM CDT, 3 hours 19 minutes earlier.
Area forecast discussion, Aug 17, 2:55 PM CDT, 3 hours 19 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WICHITA KS 255 PM CDT WED AUG 17 2011 .DISCUSSION... MAIN FORECAST UPDATES WILL FOCUS ON PLACEMENT OF PRECIPITATION CHANCES FOR THE NEXT FEW DAYS INTO THE WEEKEND...FOLLOWED BY BUILDING HEAT OVER THE AREA FOR THURSDAY AND FRIDAY. TONIGHT LOW-LEVEL UPSLOPE FLOW AND UNCAPPED ATMOSPHERE WILL ALLOW THUNDERSTORMS TO FIRE OVER THE HIGH PLAINS REGION THIS AFTERNOON. THIS ACTIVITY WILL GRADUALLY MOVE EASTWARD AND COULD AFFECT CENTRAL KANSAS TONIGHT. MCS DEVELOPMENT IS POSSIBLE LATER TONIGHT BUT WOULD BE FAVORED FURTHER NORTH IN NEBRASKA WHERE MOISTURE TRANSPORT WILL BECOME FOCUSED. THU-SAT THE HEAT WILL BUILD OVER THE REGION FOR THURSDAY AND FRIDAY WITH HEAT INDICES REACHING DANGEROUS LEVELS....AS A RESULT WE WILL ISSUE A HEAT ADVISORY FOR THURSDAY AFTERNOON FOR SOME OF THE AREA. THE HEADLINES COULD BE EXPANDED INTO FRIDAY AFTERNOON BUT LATER SHIFTS. MEANWHILE A MORE ROBUST MCS LOOKS LIKELY FOR THURSDAY NIGHT OVER EASTERN NEBRASKA WHICH WILL THEN DIVE SOUTHEAST INTO MISSOURI...AS STRONG SIGNALS OF MOISTURE TRANSPORT/ISENTROPIC LIFT ARE FOCUSED IN THAT REGION. SOME OF THE MCS ACTIVITY COULD CLIP EASTERN KANSAS...THUS WE WILL KEEP PRECIPITATION CHANCES CONFINED TO SOUTHEAST KANSAS FOR LATE THURSDAY NIGHT INTO FRIDAY MORNING. ANOTHER MCS LOOKS TO DEVELOP OVER NORTHWEST KANSAS/WESTERN NEBRASKA FRIDAY EVENING WITH-IN UPSLOPE REGIME...AS A UPPER WAVE MOVES OUT OF THE ROCKIES. THIS MCS WOULD TRACK EASTWARD FRIDAY NIGHT AND INTO PORTIONS OF CENTRAL KANSAS. THE WEATHER FORECAST GETS A LITTLE MORE MURKY COME SATURDAY WITH REMNANT OUTFLOW FROM MCS IN THE AREA OR SURGING SOUTH OF THE KANSAS/OKLAHOMA BORDER. EXTENDED: SUN-WED THE UPPER RIDGE WILL AMPLIFY OVER ROCKIES THIS PERIOD WITH NORTHWEST FLOW REGIME ALOFT PREVAILING. THIS WILL RESULT IN SLIGHTLY COOLER NEAR NORMAL TEMPERATURES AND DRY WEATHER ACROSS THE REGION. JAKUB && .PRELIMINARY POINT TEMPS/POPS... WICHITA-KICT 72 101 75 103 / 10 10 10 10 HUTCHINSON 71 101 74 102 / 10 10 10 10 NEWTON 71 99 74 101 / 10 10 10 10 ELDORADO 71 99 74 101 / 10 10 10 10 WINFIELD-KWLD 72 101 75 103 / 10 10 10 10 RUSSELL 70 101 71 97 / 20 20 10 10 GREAT BEND 71 102 72 101 / 20 20 10 10 SALINA 71 98 72 97 / 20 20 10 10 MCPHERSON 71 99 74 100 / 10 10 10 10 COFFEYVILLE 72 97 74 101 / 10 10 20 20 CHANUTE 71 96 74 99 / 10 20 20 20 IOLA 71 97 73 98 / 10 20 20 20 PARSONS-KPPF 71 97 74 101 / 10 10 20 20 && .ICT WATCHES/WARNINGS/ADVISORIES... HEAT ADVISORY FROM 1 PM TO 7 PM CDT THURSDAY FOR KSZ032-047-050- 067-068-082-083-091>093-098. &&
Hazardous weather outlook, Aug 17, 5:59 PM CDT, 15 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WICHITA KS 559 PM CDT WED AUG 17 2011 KSZ032-033-047>053-067>072-082-083-091>096-098>100-182300- RUSSELL-LINCOLN-BARTON-ELLSWORTH-SALINE-RICE-MCPHERSON-MARION-CHASE- RENO-HARVEY-BUTLER-GREENWOOD-WOODSON-ALLEN-KINGMAN-SEDGWICK-HARPER- SUMNER-COWLEY-ELK-WILSON-NEOSHO-CHAUTAUQUA-MONTGOMERY-LABETTE- 559 PM CDT WED AUG 17 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL KANSAS... SOUTH CENTRAL KANSAS AND SOUTHEAST KANSAS. .DAY ONE...TONIGHT A FEW THUNDERSTORMS WILL BE POSSIBLE THROUGH THE EVENING HOURS ACROSS SOUTHERN KANSAS...WITH ADDITIONAL ACTIVITY POSSIBLE OVER NORTHERN AND CENTRAL KANSAS AFTER MIDNIGHT. SOME OF THE STORMS COULD BE STRONG...CAPABLE OF SMALL HAIL AND STRONG GUSTY WINDS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY SCATTERED THUNDERSTORMS COULD LINGER THURSDAY MORNING ACROSS THE FLINT HILLS AND SOUTHEAST KANSAS...BUT THESE ARE NOT EXPECTED TO BE STRONG OR SEVERE. HOWEVER...THERE IS A CHANCE OF SEVERE STORMS THURSDAY NIGHT...ROUGHLY NORTHEAST OF A LINE FROM LINCOLN TO ELDORADO TO OSWEGO. LARGE HAIL AND DAMAGING WINDS ARE THE PRIMARY THREAT. HEAT INDICES OF 100 TO 108 DEGREES ARE FORECAST OVER MOST OF THE AREA THURSDAY...AND 100 TO 110 ON FRIDAY. REFER TO THE LATEST HEAT ADVISORY FOR MORE DETAILS. HEAT INDICES NEAR 100 DEGREES ARE POSSIBLE SATURDAY AND SUNDAY AFTERNOON ALONG THE OKLAHOMA BORDER. STRONG TO SEVERE STORMS ARE POSSIBLE AGAIN FRIDAY NIGHT ACROSS CENTRAL KANSAS. THE STORMS OVER THE WEEKEND MAY BE STRONG...BUT WIDESPREAD SEVERE WEATHER IS NOT ANTICIPATED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT. && FOR A GRAPHICAL VERSION OF THIS INFORMATION...SEE OUR WEBPAGE AT (LOWERCASE) HTTP://WEATHER.GOV/WICHITA/HWO/HWO.PHP PJH/CDJ/ADK
In the hours before
Special weather statement, Aug 17, 4:57 PM CDT, 1 hour 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA KS 457 PM CDT WED AUG 17 2011 KSZ091-172230- HARPER- 457 PM CDT WED AUG 17 2011 ...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR HARPER COUNTY... AT 452 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM NEAR HARPER...OR 6 MILES NORTH OF ANTHONY. THIS STORM WAS NEARLY STATIONARY. DIME SIZE HAIL...AND WINDS TO 50 MPH ARE POSSIBLE WITH THIS STORM. BE PREPARED TO TAKE SHELTER IN THE EVENT THE STORMS INTENSIFY AND BECOME SEVERE, OR A WARNING IS ISSUED BY THE NATIONAL WEATHER SERVICE. CARUSO
Special weather statement, Aug 17, 5:36 PM CDT, 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA KS 536 PM CDT WED AUG 17 2011 KSZ091-172315- HARPER- 536 PM CDT WED AUG 17 2011 ...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR HARPER COUNTY... AT 532 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM NEAR ANTHONY. THIS STORM WAS NEARLY STATIONARY. DIME SIZE HAIL...AND WINDS TO 50 MPH ARE POSSIBLE WITH THIS STORM. BE PREPARED TO TAKE SHELTER IN THE EVENT THE STORMS INTENSIFY AND BECOME SEVERE, OR A WARNING IS ISSUED BY THE NATIONAL WEATHER SERVICE. CARUSO
Special weather statement, Aug 17, 6:06 PM CDT, 8 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA KS 606 PM CDT WED AUG 17 2011 KSZ082-091-092-172345- HARPER-KINGMAN-SUMNER- 606 PM CDT WED AUG 17 2011 ...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR HARPER...KINGMAN AND SUMNER COUNTIES... AT 605 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM 7 MILES SOUTH OF NORWICH...OR 17 MILES NORTHEAST OF ANTHONY...AND MOVING NORTHEAST AT 5 MPH. WINDS TO AROUND 50 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS STORM. BE PREPARED TO TAKE SHELTER IN THE EVENT THE STORMS INTENSIFY AND BECOME SEVERE, OR A WARNING IS ISSUED BY THE NATIONAL WEATHER SERVICE. CARUSO
The office that day
Everything else NWS Wichita, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 2:49 PM CDT | Heat Advisory | ICT | Allen, Barton, Butler, Chase, Chautauqua, Cowley and 18 more | 53 hr |
| Aug 17, 6:51 PM CDT | Severe Thunderstorm Warning | ICT | Sedgwick, Sumner | 54 min |
Nearby
Severe Thunderstorm Warnings in Kansas, 2011Every severe thunderstorm warning in 2011
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.