Alert archive / Kansas / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 69, NWS Topeka, KS
NWS Topeka, KS issued this severe thunderstorm warning at May 13, 2009, 5:06 PM CDT for Coffey County, Lyon County, Osage County, Kansas. It was in force for 39 min. 8 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
- May 13, 2009, 5:06 PM CDT (22:06 UTC)
- Expired
- May 13, 2009, 5:45 PM CDT
- In force
- 39 min
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
Counties Coffey County, KS, Lyon County, KS, Osage County, KS
The radar
The Topeka radar (KTWX), 79 km from the middle of the area, began a volume at 22:08 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 |
|---|---|---|---|
| May 13, 5:16 PM CDT | HAIL 1 | Lebo, KS | |
| May 13, 5:21 PM CDT | HAIL 0.75 | 4 S Olivet, KS | |
| May 13, 5:26 PM CDT | HAIL 1.25 | 4 S Olivet, KS | |
| May 13, 5:29 PM CDT | HAIL 1.75 | 7 E Lebo, KS | |
| May 13, 5:35 PM CDT | HAIL 2 | 3 S Melvern, KS | |
| May 13, 5:40 PM CDT | HAIL 0.88 | 5 Sw Waverly, KS | |
| May 13, 5:44 PM CDT | HAIL 1.5 | 8 N Burlington, KS | |
| May 13, 5:52 PM CDT | TORNADO | 9 Ne Burlington, KS | KMBC HELICOPTER AND THE PUBLIC OBSERVED A BRIEF TORNADO. |
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 5 storm reports to this severe thunderstorm warning; the first came 10 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 13, 4:51 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 10.1 hours before the alert went out and 73 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
- 1320 J/kg
- Mixed-layer CIN
- -304 J/kg
- Mixed-layer LCL
- 577 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 398 m²/s²
- 0-3 km storm-relative helicity
- 848 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KTOP 132206 SVRTOP KSC031-111-139-132245- /O.NEW.KTOP.SV.W.0069.090513T2206Z-090513T2245Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TOPEKA KS 506 PM CDT WED MAY 13 2009 THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN COFFEY COUNTY IN EAST CENTRAL KANSAS... EAST CENTRAL LYON COUNTY IN EAST CENTRAL KANSAS... SOUTHERN OSAGE COUNTY IN EAST CENTRAL KANSAS... * UNTIL 545 PM CDT * AT 504 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL. THIS STORM WAS LOCATED NEAR NEOSHO RAPIDS...OR 10 MILES EAST OF EMPORIA...MOVING EAST AT 35 MPH. * LOCATIONS IMPACTED INCLUDE... LEBO... BETO JUNCTION... WAVERLY... THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 138 AND 166. PRECAUTIONARY/PREPAREDNESS ACTIONS... LARGE HAIL...VERY HEAVY RAIN AND DAMAGING WINDS ARE LIKELY WITH THIS STORM. FOR YOUR SAFETY...TAKE COVER INSIDE A BUILDING. STAY TUNED TO WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE LATEST SEVERE WEATHER INFORMATION. && LAT...LON 3832 9605 3844 9605 3847 9550 3827 9550 TIME...MOT...LOC 2206Z 265DEG 34KT 3840 9597 $$
3 follow-up statements
000
WWUS53 KTOP 132217
SVSTOP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
517 PM CDT WED MAY 13 2009
KSC111-132226-
/O.CAN.KTOP.SV.W.0069.000000T0000Z-090513T2245Z/
LYON-
517 PM CDT WED MAY 13 2009
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LYON COUNTY HAS
BEEN CANCELLED...
THE STORM MOVED OUT OF THE COUNTY. A SEVERE THUNDERSTORM WATCH
REMAINS IN EFFECT.
THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 138 AND 143.
LAT...LON 3831 9594 3831 9595 3844 9595 3847 9550
3827 9550
TIME...MOT...LOC 2216Z 266DEG 30KT 3839 9588
$$
KSC031-139-132245-
/O.CON.KTOP.SV.W.0069.000000T0000Z-090513T2245Z/
OSAGE-COFFEY-
517 PM CDT WED MAY 13 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR NORTHERN COFFEY AND SOUTHERN OSAGE COUNTIES...
AT 516 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE
HAIL. THIS STORM WAS LOCATED NEAR LEBO...OR 16 MILES EAST OF
EMPORIA...MOVING EAST AT 35 MPH.
LOCATIONS IMPACTED INCLUDE...
LEBO...BETO JUNCTION AND WAVERLY.
THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 144 AND 166.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
LARGE HAIL...VERY HEAVY RAIN AND DAMAGING WINDS ARE LIKELY WITH THIS
STORM. FOR YOUR SAFETY...TAKE COVER INSIDE A BUILDING NOW.
&&
LAT...LON 3831 9594 3831 9595 3844 9595 3847 9550
3827 9550
TIME...MOT...LOC 2216Z 266DEG 30KT 3839 9588
$$000 WWUS53 KTOP 132233 SVSTOP SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 533 PM CDT WED MAY 13 2009 KSC031-139-132245- /O.CON.KTOP.SV.W.0069.000000T0000Z-090513T2245Z/ OSAGE-COFFEY- 533 PM CDT WED MAY 13 2009 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR NORTHERN COFFEY AND SOUTHERN OSAGE COUNTIES... AT 529 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM PRODUCING HALF DOLLAR SIZE HAIL 4 MILES SOUTH OF OLIVET. AT 531 PM THIS STORM WAS CENTERED 3 MILES SOUTHWEST OF BETO JUNCTION...OR 23 MILES EAST OF EMPORIA...MOVING EAST AT 30 MPH. LOCATIONS IMPACTED INCLUDE... BETO JUNCTION AND WAVERLY. THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 152 AND 166. PRECAUTIONARY/PREPAREDNESS ACTIONS... LARGE HAIL...VERY HEAVY RAIN AND DAMAGING WINDS ARE LIKELY WITH THIS STORM. FOR YOUR SAFETY...TAKE COVER INSIDE A BUILDING NOW. && LAT...LON 3831 9595 3845 9578 3847 9550 3827 9550 TIME...MOT...LOC 2233Z 270DEG 26KT 3838 9573 $$
000 WWUS53 KTOP 132236 SVSTOP SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 536 PM CDT WED MAY 13 2009 KSC031-139-132245- /O.CON.KTOP.SV.W.0069.000000T0000Z-090513T2245Z/ OSAGE-COFFEY- 536 PM CDT WED MAY 13 2009 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR NORTHERN COFFEY AND SOUTHEASTERN OSAGE COUNTIES... AT 534 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM PRODUCING LARGE DAMAGING HAIL UP TO GOLF BALL SIZE IN BETO JUNCTION...OR 26 MILES EAST OF EMPORIA. RADAR INDICATED THIS STORM WAS MOVING EAST AT 35 MPH. LOCATIONS IMPACTED INCLUDE... WAVERLY. THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 154 AND 166. PRECAUTIONARY/PREPAREDNESS ACTIONS... LARGE HAIL...VERY HEAVY RAIN AND DAMAGING WINDS ARE LIKELY WITH THIS STORM. FOR YOUR SAFETY...TAKE COVER INSIDE A BUILDING NOW. && LAT...LON 3827 9550 3831 9589 3845 9575 3847 9551 TIME...MOT...LOC 2235Z 265DEG 30KT 3840 9568 $$
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 May 13, 2:47 PM CDT, 2 hours 19 minutes earlier.
Area forecast discussion, May 13, 2:47 PM CDT, 2 hours 19 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TOPEKA KS 247 PM CDT WED MAY 13 2009 .DISCUSSION... COLD FRONT SLOWLY PUSHING ACROSS CWA ATTM...CURRENTLY JUST PASSING MANHATTAN. TOP 18 UTC SOUNDING INDICATED AIRMASS VERY CAPPED WITH LITTLE CHANCE OF SURFACE HEATING HAVING ENOUGH ENERGY TO INITIATE CONVECTION AWAY FRONT THE FRONT. BETTER MOISTURE AND WIND SHEAR EXIST SOUTH AND EAST OF THIS AREA...AND LOOKS LIKE MAIN THREAT FOR THIS PORTION OF KANSAS WILL BE A POTENTIAL SQUALL LINE ALONG OR JUST PROCEEDING THE COLD FRONT. HIGH RES ARW WRF SUGGESTS INITIATION AFTER 21 UTC IN SOUTH EAST KANSAS. HAVE ACCOUNTED FOR THIS WITH HIGHER POPS IN THIS AREA. TOMORROW SHOULD BE A QUIET POST-FRONTAL DAY WITH HIGH PRESSURE BUILDING IN MAKING FOR LIGHT WINDS AND MOSTLY CLEAR SKIES. HARDING THURSDAY NIGHT...A 5H TROUGH WILL BE MOVING EAST ACROSS THE WEST-CENTRAL CONUS INTO THE CENTRAL AND NORTHERN HIGH PLAINS BY 12Z FRI. THE LEE SFC TROUGH WILL DEEPEN ACROSS THE HIGH PLAINS AS WESTERLY FLOW AT MID LEVELS INCREASES. SOUTHERLY LOW LEVEL WINDS ALONG WITH LLJ WILL ADVECT DEEPER GULF MOISTURE ACROSS NORTHERN TX AND OK NORTHWARD INTO EASTERN KS. ISENTROPIC LIFT/WAA AHEAD OF THE DEEP MOISTURE RETURN WILL CAUSE SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS TO DEVELOP ACROSS THE CWA AFTER MIDNIGHT. FRIDAY AND FRIDAY NIGHT...WE MAY SEE A BREAK IN THE PRECIP FROM THE LATE MORNING HOURS THROUGH AROUND 21Z AS THE STRONGER ISENTROPIC LIFT/WAA SHIFTS NORTHEAST OF THE CWA. THE 5H TROUGH WILL MOVE EAST ACROSS THE NORTHERN AND CENTRAL PLAINS THROUGH 00Z SAT. A COLD FRONT WILL PUSH SOUTHEAST ACROSS THE CWA FRIDAY AFTERNOON. SURFACE CONVERGENCE AHEAD OF THE FRONT AND LARGE SCALE ASCENT AHEAD OF THE 5H TROUGH WILL CAUSE SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS TO DEVELOP ALONG AND AHEAD OF THE COLD FRONT ACROSS THE CWA DURING THE LATE AFTERNOON AND EVENING HOURS. AN ENVIRONMENT WITH SBCAPE OF 2,000 TO 3,000 J/KG AND 0-6 KFT BULK SHEAR OF 25 TO 40 KTS MAY BE SUFFICIENT FOR SEVERE THUNDERSTORMS TO DEVELOP. THE LOW-LEVEL WINDS AHEAD OF THE FRONT LOOK TO VEER AHEAD OF THE FRONT...THUS THE THREAT FOR TORNADOES WILL BE VERY LOW...BUT LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE LATE FRIDAY AFTERNOON AND EVENING. THE COLD FRONT WILL PUSH SOUTHEAST OF THE CWA AFTER MIDNIGHT AND THE RAIN AND THUNDERSTORMS WILL END FROM NORTHWEST TO SOUTHEAST ACROSS THE CWA DURING THE NIGHT. HIGHS ON FRIDAY WILL BE IN THE MID TO UPPER 70S...THOUGH AREAS SOUTHEAST OF THE COLD FRONT MAY WARM INTO THE LOWER 80S IF WE SEE MORE INSOLATION DURING THE EARLY AFTERNOON HOURS. SATURDAY THROUGH MONDAY...THE 5H TROUGH WILL MOVE ACROSS THE EAST CENTRAL CONUS AND AMPLIFY WHILE A 5H RIDGE AMPLIFIES ACROSS THE WESTERN CONUS. NORTHWEST FLOW ALOFT COMBINED WITH A SFC RIDGE BUILDING SOUTHWARD ACROSS THE CENTRAL AND SOUTHERN PLAINS WILL KEEP THE CWA DRY WITH COOLER THAN SEASONAL NORM TEMPERATURES. HIGHS SATURDAY AND SUNDAY WILL BE AROUND 70 TO THE LOWER 70S. AS THE SFC RIDGE AXIS SHIFTS EAST OF THE AREA MONDAY AFTERNOON...HIGHS WILL WARM INTO THE MID TO UPPER 70S. TUESDAY AND WEDNESDAY...THE 5H RIDGE ACROSS THE WESTERN CONUS WILL MOVE EAST INTO THE PLAINS STATES. A LEE SFC TROUGH WILL DEVELOP ACROSS THE HIGH PLAINS AND SOUTHERLY WINDS WILL HELP TO WARM TEMPERATURES INTO THE LOWER TO MID 80S. GARGAN && .AVIATION... VFR CONDITIONS EXPECTED TO PREVAIL NEXT 24 HOURS. MAIN CONCERN AT TAF SITES IS COLD FRONTAL PASSAGE. EXPECT ALL 3 LOCATIONS TO SEE PASSAGE AROUND 20-21 UTC. POSSIBILITY OF THUNDERSTORMS ALONG AND IN VICINITY OF THIS FRONT. BEHIND THE FRONT...WINDS SHOULD REMAIN AROUND 330 DEGREES AOB 15 KNOTS. MIDDLE CLOUD CEILINGS WILL ALSO PERSIST THOUGH THE EVENING...WITH CLEAR SKIES AND LIGHT WINDS EXPECTED BY TOMORROW MORNING AS HIGH PRESSURE BUILDS IN FROM THE NORTHEAST. HARDING && .TOP WATCHES/WARNINGS/ADVISORIES...NONE. && HARDING/GARGAN
Hazardous weather outlook, May 13, 3:26 PM CDT, 1 hour 40 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TOPEKA KS 326 PM CDT WED MAY 13 2009 KSZ008>012-020>024-026-034>040-054>056-058-059-142030- REPUBLIC-WASHINGTON-MARSHALL-NEMAHA-BROWN-CLOUD-CLAY-RILEY- POTTAWATOMIE-JACKSON-JEFFERSON-OTTAWA-DICKINSON-GEARY-MORRIS- WABAUNSEE-SHAWNEE-DOUGLAS-LYON-OSAGE-FRANKLIN-COFFEY-ANDERSON- 326 PM CDT WED MAY 13 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL...NORTH CENTRAL AND NORTHEAST KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT THUNDERSTORMS WILL DEVELOP LATE THIS AFTERNOON AND EVENING SOUTH AND EAST OF THE KANSAS TURNPIKE ALONG A SURFACE COLD FRONT MOVING SOUTHEAST. SOME OF THE THUNDERSTORMS THAT DEVELOP ALONG THE COLD FRONT MAY BECOME SEVERE WITH LARGE HAIL...DAMAGING WINDS AND LOCALLY HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THUNDERSTORMS ARE POSSIBLE ACROSS THE ENTIRE OUTLOOK AREA THURSDAY NIGHT THROUGH FRIDAY NIGHT. THUNDERSTORMS ON FRIDAY MAY BE STRONG TO SEVERE AS THEY DEVELOP ALONG AND AHEAD OF A COLD FRONT. .SPOTTER INFORMATION STATEMENT... SPOTTERS MAY BE NEEDED LATE THIS AFTERNOON AND EVENING...GENERALLY SOUTH AND EAST OF THE KANSAS TURNPIKE.
In the hours before
Local storm report, May 13, 5:00 PM CDT, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
500 PM CDT WED MAY 13 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0455 PM HAIL SE READING 38.52N 95.96W
05/13/2009 E1.75 INCH LYON KS TRAINED SPOTTER
&&
JTLThe office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 4:35 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 25 min |
| May 13, 4:53 PM CDT | Severe Thunderstorm Warning | TOP | Lyon, Osage | 52 min |
| May 13, 5:44 PM CDT | Severe Thunderstorm Warning | TOP | Anderson, Coffey, Franklin, Osage | 16 min |
| May 13, 5:51 PM CDT | Severe Thunderstorm Warning | TOP | Anderson, Coffey, Franklin | 54 min |
| May 13, 6:44 PM CDT | Severe Thunderstorm Warning | TOP | Anderson | 30 min |
Nearby
Severe Thunderstorm Warnings in Kansas, 2009Every severe thunderstorm warning in 2009
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.