Alert archive / Kansas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 151, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Jun 1, 2011, 8:16 PM CDT for Leavenworth County, Kansas. It was in force for 29 min. 3 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
- Jun 1, 2011, 8:16 PM CDT (01:16 UTC)
- Expired
- Jun 1, 2011, 8:45 PM CDT
- In force
- 29 min
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Leavenworth County, KS
The radar
The Pleasant Hill radar (KEAX), 75 km from the middle of the area, began a volume at 01:16 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 1, 8:16 PM CDT | HAIL 1 | 1 Ese Reno, KS | |
| Jun 1, 8:37 PM CDT | HAIL 1.75 | Tonganoxie, KS | |
| Jun 1, 8:42 PM CDT | HAIL 1.5 | Tonganoxie, KS |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 1.3 hours before the alert went out and 51 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
- 1634 J/kg
- Mixed-layer CIN
- -93 J/kg
- Mixed-layer LCL
- 780 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 229 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 10.8
The text
As transmitted, in the capitals the NWS used until 2016.
795 WUUS53 KEAX 020116 SVREAX KSC103-020145- /O.NEW.KEAX.SV.W.0151.110602T0116Z-110602T0145Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 816 PM CDT WED JUN 1 2011 THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTH CENTRAL LEAVENWORTH COUNTY IN NORTHEAST KANSAS... * UNTIL 845 PM CDT * AT 811 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH...AND QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR TONGANOXIE...AND MOVING EAST AT 15 MPH. * LOCATIONS IMPACTED INCLUDE... TONGANOXIE. 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. && LAT...LON 3915 9499 3902 9495 3902 9519 3907 9519 TIME...MOT...LOC 0116Z 258DEG 15KT 3906 9511 WIND...HAIL 60MPH 1.00IN $$ DEROCHE
2 follow-up statements
522
WWUS53 KEAX 020126
SVSEAX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
826 PM CDT WED JUN 1 2011
KSC103-020145-
/O.CON.KEAX.SV.W.0151.000000T0000Z-110602T0145Z/
LEAVENWORTH KS-
826 PM CDT WED JUN 1 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL
LEAVENWORTH COUNTY UNTIL 845 PM CDT...
AT 821 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH...AND PING PONG BALL SIZE HAIL. THIS STORM WAS LOCATED 3
MILES SOUTH OF TONGANOXIE...MOVING NORTHEAST AT 15 MPH.
AT 816 PM...LEAVENWORTH COUNTY EMERGENCY MANAGEMENT REPORTED QUARTER
SIZED HAIL 1 MILE EAST-SOUTHEAST OF RENO.
LOCATIONS IMPACTED INCLUDE...
TONGANOXIE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 3909 9515 3915 9499 3902 9495 3902 9509
3905 9513
TIME...MOT...LOC 0124Z 253DEG 12KT 3907 9509
WIND...HAIL 60MPH 1.50IN
$$
DEROCHE158 WWUS53 KEAX 020137 SVSEAX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 837 PM CDT WED JUN 1 2011 KSC103-020145- /O.CON.KEAX.SV.W.0151.000000T0000Z-110602T0145Z/ LEAVENWORTH KS- 837 PM CDT WED JUN 1 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL LEAVENWORTH COUNTY UNTIL 845 PM CDT... AT 832 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH...AND GOLF BALL SIZE HAIL. THIS STORM WAS LOCATED NEAR TONGANOXIE...MOVING NORTHEAST AT 15 MPH. IN ADDITION...AT 836 PM GOLF BALL SIZED HAIL WAS REPORTED IN TONGANOXIE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... MAINLY RURAL AREAS OF CENTRAL LEAVENWORTH COUNTY. 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. && LAT...LON 3905 9496 3906 9511 3910 9512 3915 9499 TIME...MOT...LOC 0135Z 236DEG 12KT 3910 9506 WIND...HAIL 60MPH 1.50IN $$ DEROCHE
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 7:29 PM CDT | Special Weather Statement | EAX | Leavenworth | 46 min |
| Jun 1, 7:40 PM CDT | Special Weather Statement | EAX | Atchison | 35 min |
| Jun 1, 8:06 PM CDT | Special Weather Statement | EAX | Leavenworth | 24 min |
| Jun 1, 8:42 PM CDT | Severe Thunderstorm Warning | EAX | Leavenworth | 33 min |
| Jun 1, 9:15 PM CDT | Severe Thunderstorm Warning | EAX | Leavenworth | 30 min |
| Jun 2, 4:53 AM CDT | River Flood Warning | EAX | Atchison, Leavenworth | 34 hr |
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.