Alert archive / Kansas / Flash Flood Warnings in 2011
Flash Flood Warning 4, NWS Kansas City, MO
NWS Kansas City, MO issued this flash flood warning at Jun 1, 2011, 4:43 PM CDT for Linn County, Kansas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 1, 2011, 4:43 PM CDT (21:43 UTC)
- Expired
- Jun 1, 2011, 7:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Flood severity
- None
County Linn County, KS
The radar
The Pleasant Hill radar (KEAX), 79 km from the middle of the area, began a volume at 21:44 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.
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 9.7 hours before the alert went out and 105 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2267 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
836 WGUS53 KEAX 012143 FFWEAX KSC107-020030- /O.NEW.KEAX.FF.W.0004.110601T2143Z-110602T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 443 PM CDT WED JUN 1 2011 THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL LINN COUNTY IN EAST CENTRAL KANSAS... * UNTIL 730 PM CDT * AT 442 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. * RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. PRECAUTIONARY/PREPAREDNESS ACTIONS... ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE WARNED AREA. && LAT...LON 3835 9478 3821 9473 3818 9500 3831 9503 $$ DEROCHE
2 follow-up statements
074 WGUS73 KEAX 012238 FFSEAX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 538 PM CDT WED JUN 1 2011 KSC107-020030- /O.CON.KEAX.FF.W.0004.000000T0000Z-110602T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LINN KS- 538 PM CDT WED JUN 1 2011 ...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CENTRAL LINN COUNTY IN EAST CENTRAL KANSAS UNTIL 730 PM CDT... AT 535 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE HEAVY RAINFALL HAS MOVED NORTH AND EAST THE WARNED AREA. HOWEVER...ADDITIONAL SCATTERED LIGHT TO OCCASIONALLY MODERATE RAINFALL CONTINUED ACROSS PORTIONS OF THE WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. PRECAUTIONARY/PREPAREDNESS ACTIONS... DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. && LAT...LON 3835 9478 3821 9473 3818 9500 3831 9503 $$ DEROCHE
096 WGUS73 KEAX 020029 FFSEAX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 729 PM CDT WED JUN 1 2011 KSC107-020045- /O.EXP.KEAX.FF.W.0004.000000T0000Z-110602T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LINN KS- 729 PM CDT WED JUN 1 2011 ...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR CENTRAL LINN COUNTY IN EAST CENTRAL KANSAS HAS BEEN ALLOWED TO EXPIRE... EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED... PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY. LAT...LON 3835 9478 3821 9473 3818 9500 3831 9503 $$ DEROCHE
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 3:07 PM CDT | Special Weather Statement | EAX | Linn | 38 min |
| Jun 1, 3:56 PM CDT | Special Weather Statement | EAX | Linn | 49 min |
| Jun 1, 3:58 PM CDT | Areal Flood Advisory | EAX | Linn | 4 hr |
| Jun 1, 5:02 PM CDT | Special Weather Statement | EAX | Miami | 28 min |
| Jun 1, 5:18 PM CDT | Special Weather Statement | EAX | Linn | 27 min |
| Jun 1, 6:13 PM CDT | Special Weather Statement | EAX | Atchison | 32 min |
| Jun 1, 6:59 PM CDT | Special Weather Statement | EAX | Johnson | 31 min |
Nearby
Flash Flood Warnings in Kansas, 2011Every flash flood 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.