Alert archive / Missouri / Tornado Warnings in 2011
Tornado Warning 50, NWS Kansas City, MO
NWS Kansas City, MO issued this tornado warning at Jun 19, 2011, 9:41 PM CDT for Atchison County, Missouri. It was in force for 34 min. 1 report 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
- Jun 19, 2011, 9:41 PM CDT (02:41 UTC)
- Expired
- Jun 19, 2011, 10:15 PM CDT
- In force
- 34 min
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
County Atchison County, MO
The radar
The Omaha radar (KOAX), 118 km from the middle of the area, began a volume at 02:43 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 |
|---|---|---|---|
| Jun 19, 10:07 PM CDT | TORNADO | 8 N Tarkio, MO | TORNADO NORTH OF TARKIO HEADING EAST NEAR 59 HWY |
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 |
|---|---|---|---|
| Jun 19, 6:51 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 2.7 hours before the alert went out and 118 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
- 2452 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1426 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.2
The text
As transmitted, in the capitals the NWS used until 2016.
720 WFUS53 KEAX 200241 TOREAX MOC005-200315- /O.NEW.KEAX.TO.W.0050.110620T0241Z-110620T0315Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 941 PM CDT SUN JUN 19 2011 THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A * TORNADO WARNING FOR... NORTHERN ATCHISON COUNTY IN NORTHWEST MISSOURI... * UNTIL 1015 PM CDT * AT 935 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 5 MILES SOUTHEAST OF HAMBURG...OR 13 MILES NORTHWEST OF TARKIO...AND MOVING EAST AT 20 MPH. * LOCATIONS IMPACTED INCLUDE... WESTBORO. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4058 9521 4049 9524 4053 9565 4059 9565 TIME...MOT...LOC 0241Z 277DEG 18KT 4056 9553 HAIL <.75IN $$ BOOKBINDER
4 follow-up statements
585 WWUS53 KEAX 200250 SVSEAX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 950 PM CDT SUN JUN 19 2011 MOC005-200315- /O.CON.KEAX.TO.W.0050.000000T0000Z-110620T0315Z/ ATCHISON MO- 950 PM CDT SUN JUN 19 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL ATCHISON COUNTY UNTIL 1015 PM CDT... AT 944 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 8 MILES SOUTHEAST OF HAMBURG IOWA...OR 11 MILES NORTHWEST OF TARKIO...MOVING EAST AT 20 MPH. SOME VERY LARGE HAIL WILL LIKELY ACCOMPANY THIS STORM ON THE IOWA SIDE OF THE BORDER. LOCATIONS IMPACTED INCLUDE... WESTBORO. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4053 9559 4059 9560 4058 9521 4049 9524 TIME...MOT...LOC 0249Z 277DEG 18KT 4055 9548 HAIL <.75IN $$ BOOKBINDER
619 WWUS53 KEAX 200302 SVSEAX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 1002 PM CDT SUN JUN 19 2011 MOC005-200315- /O.CON.KEAX.TO.W.0050.000000T0000Z-110620T0315Z/ ATCHISON MO- 1002 PM CDT SUN JUN 19 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL ATCHISON COUNTY UNTIL 1015 PM CDT... AT 957 PM CDT...A SEVERE THUNDERSTORM WITH VERY STRONG ROTATION WAS LOCATED 10 MILES SOUTHEAST OF RIVERTON IOWA...OR 10 MILES NORTHWEST OF TARKIO...MOVING EAST AT 15 MPH. A TORNADO REMAINS LIKELY WITH THIS STORM ALONG THE IOWA BORDER. LOCATIONS IMPACTED INCLUDE... WESTBORO. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4050 9524 4054 9553 4059 9553 4058 9521 TIME...MOT...LOC 0301Z 275DEG 14KT 4056 9545 HAIL <.75IN $$ BOOKBINDER
433 WWUS53 KEAX 200308 SVSEAX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 1008 PM CDT SUN JUN 19 2011 MOC005-200315- /O.CON.KEAX.TO.W.0050.000000T0000Z-110620T0315Z/ ATCHISON MO- 1008 PM CDT SUN JUN 19 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL ATCHISON COUNTY UNTIL 1015 PM CDT... AT 1002 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO APPROXIMATELY 9 MILES NORTH OF TARKIO. RADAR SHOWED THIS TORNADO MOVING EAST AT 15 MPH. LOCATIONS IMPACTED INCLUDE... HIGHWAY 59 AND WESTBORO. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW. && LAT...LON 4050 9524 4054 9553 4059 9553 4058 9521 TIME...MOT...LOC 0308Z 275DEG 14KT 4056 9539 HAIL <.75IN $$ BOOKBINDER
642 WWUS53 KEAX 200315 SVSEAX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 1015 PM CDT SUN JUN 19 2011 MOC005-200325- /O.EXP.KEAX.TO.W.0050.000000T0000Z-110620T0315Z/ ATCHISON MO- 1015 PM CDT SUN JUN 19 2011 ...THE TORNADO WARNING FOR NORTH CENTRAL ATCHISON COUNTY WAS REISSUED... PLEASE REFER TO THAT BULLETIN FOR THE LATEST SEVERE WEATHER INFORMATION. LAT...LON 4050 9524 4054 9553 4059 9553 4058 9521 TIME...MOT...LOC 0308Z 275DEG 14KT 4056 9539 $$ BOOKBINDER
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 9:42 PM CDT | Tornado Warning | EAX | Nodaway | 33 min |
| Jun 19, 10:11 PM CDT | Tornado Warning | EAX | Atchison | 34 min |
| Jun 19, 10:13 PM CDT | Severe Thunderstorm Warning | EAX | Nodaway | 32 min |
| Jun 19, 10:49 PM CDT | Special Weather Statement | EAX | Worth | 26 min |
| Jun 20, 1:54 AM CDT | Special Weather Statement | EAX | Schuyler | 36 min |
| Jun 20, 2:02 AM CDT | Special Weather Statement | EAX | Atchison | 13 min |
| Jun 20, 2:24 AM CDT | Special Weather Statement | EAX | Andrew, Gentry, Nodaway | 36 min |
| Jun 20, 3:19 AM CDT | Special Weather Statement | EAX | Daviess | 26 min |
| Jun 20, 3:23 AM CDT | Special Weather Statement | EAX | Gentry | 37 min |
| Jun 20, 9:45 AM CDT | Flash Flood Warning | EAX | Holt | 24 hr |
| Jun 20, 3:06 PM CDT | Flash Flood Watch | EAX | Atchison, Gentry, Harrison, Mercer, Nodaway, Putnam and 2 more | 9 hr |
Nearby
Tornado Warnings in Missouri, 2011Every tornado warning in 2011Tornadoes 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.