Alert archive / Kansas / Flood Watches in 2021

Flood Watch 1, NWS Topeka, KS

March 11, 20215 counties in Kansas

NWS Topeka, KS issued this flood watch at Mar 11, 2021, 3:58 AM CST for 5 counties in Kansas. It took effect at Mar 12, 2021, 6:00 AM CST. It was in force for 52 hr.

The area

The counties it named.

The facts

Issued
Mar 11, 2021, 3:58 AM CST (09:58 UTC)
In effect from
Mar 12, 2021, 6:00 AM CST
Expired
Mar 14, 2021, 10:50 AM CDT
In force
52 hr
Issued by
NWS Topeka, KS
Flood severity
None

Counties Anderson County, KS, Coffey County, KS, Franklin County, KS, Lyon County, KS, Osage County, KS

The radar

The Topeka radar (KTWX), 82 km from the middle of the area, began a volume at 10:00 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 00:00Z, 10.0 hours before the alert went out and 64 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.

Skew-T log-pSkew-T log-p diagram, Topeka, KS at 00:00Z on 2021-03-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 37 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2021-03-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
37 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
2945 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

653 
WGUS63 KTOP 110958
FFATOP

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Topeka KS
358 AM CST Thu Mar 11 2021

KSZ054>056-058-059-112230-
/O.NEW.KTOP.FA.A.0001.210312T1200Z-210314T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lyon-Osage-Franklin-Coffey-Anderson-
Including the cities of Emporia, Burlingame, Lyndon, Lebo, 
Burlington, Ottawa, Overbrook, Carbondale, Osage City, and Garnett
358 AM CST Thu Mar 11 2021

...FLOOD WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY 
AFTERNOON...

The National Weather Service in Topeka has issued a

* Flood Watch for a portion of east central Kansas, including the 
  following areas, Anderson, Coffey, Franklin, Lyon and Osage.

* From Friday morning through Saturday afternoon

* Heavy rainfall from periods of showers and thunderstorms from 
  Friday morning through Saturday evening. This additional rainfall 
  along with rain that fell Wednesday night could lead to the rising 
  of rivers across the watch area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on 
current forecasts.

You should monitor later forecasts and be alert for possible flood 
warnings. Those living in areas prone to flooding should be prepared 
to take action should flooding develop.

&&

$$

Flanagan
8 follow-up statements
818 
WGUS63 KTOP 112107
FFATOP

Flood Watch
National Weather Service Topeka KS
307 PM CST Thu Mar 11 2021

KSZ054>056-058-059-121200-
/O.CON.KTOP.FA.A.0001.210312T1200Z-210314T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lyon-Osage-Franklin-Coffey-Anderson-
Including the cities of Emporia, Burlingame, Lyndon, Lebo, 
Burlington, Ottawa, Overbrook, Carbondale, Osage City, and Garnett
307 PM CST Thu Mar 11 2021

...FLOOD WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH 
SATURDAY AFTERNOON...

The Flood Watch continues for

* A portion of east central Kansas, including the following areas, 
  Anderson, Coffey, Franklin, Lyon and Osage.

* From Friday morning through Saturday afternoon

* Heavy rainfall is expected from showers and thunderstorms from 
  Friday morning through Saturday evening. There is potential of 2 
  to 3 or more inches of rainfall forecast and locally heavy 
  rainfall will be possible. This additional rainfall along with 
  past rainfall from Wednesday night could lead to flooding of 
  streams, creeks and low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on 
current forecasts. You should monitor later forecasts and be alert 
for possible flood warnings. Those living in areas prone to flooding 
should be prepared to take action should flooding develop.

&&

$$

53
201 
WGUS63 KTOP 120801
FFATOP

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Topeka KS
201 AM CST Fri Mar 12 2021

KSZ054>056-058-059-121615-
/O.EXT.KTOP.FA.A.0001.210312T1200Z-210314T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lyon-Osage-Franklin-Coffey-Anderson-
Including the cities of Emporia, Burlingame, Lyndon, Lebo, 
Burlington, Ottawa, Overbrook, Carbondale, Osage City, and Garnett
201 AM CST Fri Mar 12 2021

...FLOOD WATCH NOW IN EFFECT FROM 6 AM CST THIS MORNING THROUGH 
SUNDAY AFTERNOON...

The Flood Watch is now in effect for

* A portion of east central Kansas, including the following areas, 
  Anderson, Coffey, Franklin, Lyon and Osage.

* From 6 AM CST this morning through Sunday afternoon

* Several rounds of rain are expected during the next several days 
  and this rain could be heavy at times. The forecast has rain 
  totals of 2 to 3 inches and locally higher amounts could be 
  possible. This additional rainfall along with past rainfall from 
  Wednesday night could lead to flooding of streams, creeks and low 
  lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on 
current forecasts. You should monitor later forecasts and be alert 
for possible flood warnings. Those living in areas prone to flooding 
should be prepared to take action should flooding develop.

&&

$$
385 
WGUS63 KTOP 121524
FFATOP

Flood Watch
National Weather Service Topeka KS
924 AM CST Fri Mar 12 2021

KSZ054>056-058-059-122330-
/O.CON.KTOP.FA.A.0001.000000T0000Z-210314T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lyon-Osage-Franklin-Coffey-Anderson-
Including the cities of Emporia, Burlingame, Lyndon, Lebo, 
Burlington, Ottawa, Overbrook, Carbondale, Osage City, and Garnett
924 AM CST Fri Mar 12 2021

...FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY AFTERNOON...

The Flood Watch continues for

* A portion of east central Kansas, including the following areas, 
  Anderson, Coffey, Franklin, Lyon and Osage.

* Through Sunday afternoon

* Several rounds of rain are expected during the next several days. 
  This rain could be heavy at times, with totals of 2 to 3 inches 
  and locally higher amounts possible. This additional rainfall 
  along with past rainfall from Wednesday night could lead to 
  flooding of streams, creeks and low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on 
current forecasts. You should monitor later forecasts and be alert 
for possible flood warnings. Those living in areas prone to flooding 
should be prepared to take action should flooding develop.

&&

$$

Reese
867 
WGUS63 KTOP 122202
FFATOP

Flood Watch
National Weather Service Topeka KS
402 PM CST Fri Mar 12 2021

KSZ054>056-058-059-131015-
/O.CON.KTOP.FA.A.0001.000000T0000Z-210314T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lyon-Osage-Franklin-Coffey-Anderson-
Including the cities of Emporia, Burlingame, Lyndon, Lebo, 
Burlington, Ottawa, Overbrook, Carbondale, Osage City, and Garnett
402 PM CST Fri Mar 12 2021

...FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY AFTERNOON...

The Flood Watch continues for

* A portion of east central Kansas, including the following areas, 
  Anderson, Coffey, Franklin, Lyon and Osage.

* Through Sunday afternoon

* Several rounds of rain are expected during the next several days. 
  This rain could be heavy at times, with totals of 2 to 3 inches 
  and locally higher amounts possible. This additional rainfall 
  along with past rainfall from Wednesday night could lead to 
  flooding of streams, creeks and low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on 
current forecasts. You should monitor later forecasts and be alert 
for possible flood warnings. Those living in areas prone to flooding 
should be prepared to take action should flooding develop.

&&

$$

Reese
939 
WGUS63 KTOP 131002
FFATOP

Flood Watch
National Weather Service Topeka KS
402 AM CST Sat Mar 13 2021

KSZ054>056-058-059-132245-
/O.CON.KTOP.FA.A.0001.000000T0000Z-210314T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lyon-Osage-Franklin-Coffey-Anderson-
Including the cities of Emporia, Burlingame, Lyndon, Lebo, 
Burlington, Ottawa, Overbrook, Carbondale, Osage City, and Garnett
402 AM CST Sat Mar 13 2021

...FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY AFTERNOON...

The Flood Watch continues for

* A portion of east central Kansas, including the following areas, 
  Anderson, Coffey, Franklin, Lyon and Osage.

* Through Sunday afternoon

* Several rounds of rain are expected during the next several days. 
  This rain could be heavy at times, with additional rain amounts of 
  1 to 3 inches possible. This additional rainfall could lead to 
  flooding of streams, creeks and low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on 
current forecasts. You should monitor later forecasts and be alert 
for possible flood warnings. Those living in areas prone to flooding 
should be prepared to take action should flooding develop.

&&

$$
039 
WGUS63 KTOP 132149
FFATOP

Flood Watch
National Weather Service Topeka KS
349 PM CST Sat Mar 13 2021

KSZ054>056-058-059-141200-
/O.CON.KTOP.FA.A.0001.000000T0000Z-210314T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lyon-Osage-Franklin-Coffey-Anderson-
Including the cities of Emporia, Burlingame, Lyndon, Lebo, 
Burlington, Ottawa, Overbrook, Carbondale, Osage City, and Garnett
349 PM CST Sat Mar 13 2021

...FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY AFTERNOON...

The Flood Watch continues for

* A portion of east central Kansas, including the following areas, 
  Anderson, Coffey, Franklin, Lyon and Osage.

* Through Sunday afternoon

* Another round of heavy rainfall is expected on Sunday with several 
  inches of rain possible. This additional rainfall could lead to 
  flooding of streams, creeks and low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on 
current forecasts. You should monitor later forecasts and be alert 
for possible flood warnings. Those living in areas prone to flooding 
should be prepared to take action should flooding develop.

&&

$$

Skow
483 
WGUS63 KTOP 141200
FFATOP

Flood Watch
National Weather Service Topeka KS
700 AM CDT Sun Mar 14 2021

KSZ054>056-058-059-141800-
/O.CON.KTOP.FA.A.0001.000000T0000Z-210314T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lyon-Osage-Franklin-Coffey-Anderson-
Including the cities of Emporia, Burlingame, Lyndon, Lebo, 
Burlington, Ottawa, Overbrook, Carbondale, Osage City, and Garnett
700 AM CDT Sun Mar 14 2021

...FLOOD WATCH REMAINS IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...

The Flood Watch continues for

* A portion of east central Kansas, including the following areas, 
  Anderson, Coffey, Franklin, Lyon and Osage.

* Until 1 PM CDT this afternoon

* Additional rounds of heavy precipitation are expected this morning 
  with 1-2 inches of additional rainfall. This could lead to 
  flooding of streams, creeks, and low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on 
current forecasts. You should monitor later forecasts and be alert 
for possible flood warnings. Those living in areas prone to flooding 
should be prepared to take action should flooding develop.

&&

$$
637 
WGUS63 KTOP 141550
FFATOP

Flood Watch
National Weather Service Topeka KS
1050 AM CDT Sun Mar 14 2021

KSZ054>056-058-059-141700-
/O.CAN.KTOP.FA.A.0001.000000T0000Z-210314T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lyon-Osage-Franklin-Coffey-Anderson-
Including the cities of Emporia, Burlingame, Lyndon, Lebo, 
Burlington, Ottawa, Overbrook, Carbondale, Osage City, and Garnett
1050 AM CDT Sun Mar 14 2021

...FLOOD WATCH IS CANCELLED...

The Flood Watch for a portion of east central Kansas, including the 
following areas, Anderson, Coffey, Franklin, Lyon and Osage has been 
cancelled.

The Flood Watch is cancelled. While light to moderate rainfall will 
continue this afternoon, flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

$$

Skow

The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 10, 6:19 PM CSTSpecial Weather StatementTOPFranklin26 min
Mar 10, 6:33 PM CSTSpecial Weather StatementTOPOsage27 min
Mar 10, 6:51 PM CSTSpecial Weather StatementTOPLyon24 min
Mar 10, 6:59 PM CSTSevere Thunderstorm WarningTOPCoffey, Franklin, Lyon, Osage46 min
Mar 10, 7:24 PM CSTSpecial Weather StatementTOPDouglas36 min
Mar 10, 7:32 PM CSTSevere Thunderstorm WarningTOPCoffey, Lyon28 min
Mar 10, 7:43 PM CSTSpecial Weather StatementTOPFranklin32 min
Mar 10, 7:59 PM CSTSevere Thunderstorm WarningTOPAnderson, Coffey46 min
Mar 10, 8:46 PM CSTSpecial Weather StatementTOPAnderson29 min

Nearby

Flood Watches in Kansas, 2021Every flood watch in 2021

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.