Alert archive / Missouri / Winter Weather Advisories in 2021

Winter Weather Advisory 2, NWS Kansas City, MO

January 24, 20219 counties in Missouri; Atchison County, Kansas

NWS Kansas City, MO issued this winter weather advisory at Jan 24, 2021, 3:13 AM CST for 9 counties in Missouri; Atchison County, Kansas. It took effect at Jan 25, 2021, 3:00 AM CST. It was in force for 25 hr.

The area

The counties it named.

The facts

Issued
Jan 24, 2021, 3:13 AM CST (09:13 UTC)
In effect from
Jan 25, 2021, 3:00 AM CST
Expired
Jan 26, 2021, 4:17 AM CST
In force
25 hr
Issued by
NWS Kansas City, MO

Counties Atchison County, KS, Adair County, MO, Buchanan County, MO, Daviess County, MO, DeKalb County, MO, Grundy County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Sullivan County, MO

The radar

The Pleasant Hill radar (KEAX), 131 km from the middle of the area, began a volume at 09:12 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, 9.2 hours before the alert went out and 195 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 2021-01-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2021-01-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 390 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1837 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
390 m²/s²
0-3 km storm-relative helicity
477 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

142 
WWUS43 KEAX 240913
WSWEAX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Kansas City/Pleasant Hill MO
313 AM CST Sun Jan 24 2021

...Heavy Snow Still On Track for Monday...

.A rather potent winter storm is still on track to move into the
area late Sunday and last through most of the day on Monday.
Initially precipitation may fall as rain or a wintry mix of rain,
sleet, or freezing rain, but by late Monday morning all
precipitation should switch over to snow. Even before the heavy
snow starts area roads within the watch may be slick due to the
potential for off and on freezing rain. There will also be a very
tight gradient between the highest snowfall amounts across far
northern Missouri and very little snow, more toward the Highway 36
corridor and areas south of there. So it will remain necessary to
stay up to date with the latest forecast trends, as even the 
slightest shift north or south will mean very different snowfall 
totals.

KSZ102-MOZ001>008-011-012-241800-
/O.UPG.KEAX.WS.A.0001.210125T0900Z-210126T1200Z/
/O.NEW.KEAX.WS.W.0001.210125T0900Z-210126T1200Z/
Doniphan-Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-
Schuyler-Holt-Andrew-
Including the cities of Wathena, Elwood, Troy, Highland, Tarkio, 
Rockport, Fairfax, Maryville, Grant City, Albany, Stanberry, 
King City, Bethany, Princeton, Mercer, Unionville, Lancaster, 
Queen City, Greentop, Downing, Glenwood, Mound City, Oregon, 
Maitland, Forest City, Craig, Savannah, and Country Club Villa
313 AM CST Sun Jan 24 2021

...WINTER STORM WARNING IN EFFECT FROM 3 AM MONDAY TO 6 AM CST
TUESDAY...

* WHAT...Heavy mixed precipitation expected. Total snow
  accumulations of 6 to 10 inches and ice accumulations of around
  one tenth of an inch.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...From 3 AM Monday to 6 AM CST Tuesday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Winds will be gusting to around 20 to 30
  mph, which combined with the heavy snow will cause near zero
  visibility. Travel on Monday is highly discouraged.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

KSZ025-MOZ013>017-020-241800-
/O.UPG.KEAX.WS.A.0001.210125T0900Z-210126T1200Z/
/O.NEW.KEAX.WW.Y.0002.210125T0900Z-210126T1200Z/
Atchison KS-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-
Including the cities of Atchison, Maysville, Stewartsville, 
Osborn, Union Star, Clarksdale, Gallatin, Jamesport, Trenton, 
Milan, Green City, Kirksville, St. Joseph Airport, and St. Joseph
313 AM CST Sun Jan 24 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM MONDAY TO 6 AM CST
TUESDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations of
  2 to 4 inches and ice accumulations of up to one tenth of an 
  inch.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...From 3 AM Monday to 6 AM CST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Gusty winds will combine with the light
  snow to bring reduced visibility. Travel is discouraged Monday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
8 follow-up statements
246 
WWUS43 KEAX 241705
WSWEAX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Kansas City/Pleasant Hill MO
1105 AM CST Sun Jan 24 2021

...Heavy Snow Still Expected on Monday...

.A rather potent winter storm is still on track to move into the
area late Sunday and last through most of the day on Monday.
Precipitation is expected to increase across the area Monday
morning, beginning as light freezing rain or sleet, and then
transitioning to snow. There will be a very tight gradient 
between the highest snowfall amounts across far northern Missouri 
and very little snow, more toward the Highway 36 corridor and 
areas south. So it will remain necessary to stay up to date with 
the latest forecast trends, as even the slightest shift north or 
south will mean very different snowfall totals.

KSZ102-MOZ001>008-011-012-250115-
/O.CON.KEAX.WS.W.0001.210125T0900Z-210126T1200Z/
Doniphan-Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-
Schuyler-Holt-Andrew-
Including the cities of Wathena, Elwood, Troy, Highland, Tarkio, 
Rockport, Fairfax, Maryville, Grant City, Albany, Stanberry, 
King City, Bethany, Princeton, Mercer, Unionville, Lancaster, 
Queen City, Greentop, Downing, Glenwood, Mound City, Oregon, 
Maitland, Forest City, Craig, Savannah, and Country Club Villa
1105 AM CST Sun Jan 24 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM MONDAY TO
6 AM CST TUESDAY...

* WHAT...Heavy mixed precipitation expected. Total snow 
  accumulations of 6 to 10 inches and ice accumulations of 
  around one tenth of an inch.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...From 3 AM Monday to 6 AM CST Tuesday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

MOZ023>025-250115-
/O.EXA.KEAX.WW.Y.0002.210125T0900Z-210126T1200Z/
Livingston-Linn MO-Macon-
Including the cities of Chillicothe, Brookfield, Marceline, 
Macon, and La Plata
1105 AM CST Sun Jan 24 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM MONDAY TO 6 AM CST
TUESDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of up to two inches and ice accumulations of up to two tenths 
  of an inch.

* WHERE...Livingston, Linn MO and Macon Counties.

* WHEN...From 3 AM Monday to 6 AM CST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

KSZ025-MOZ013>017-020-250115-
/O.CON.KEAX.WW.Y.0002.210125T0900Z-210126T1200Z/
Atchison KS-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-
Including the cities of Atchison, Maysville, Stewartsville, 
Osborn, Union Star, Clarksdale, Gallatin, Jamesport, Trenton, 
Milan, Green City, Kirksville, St. Joseph Airport, and St. Joseph
1105 AM CST Sun Jan 24 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM MONDAY TO
6 AM CST TUESDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of 2 to 4 inches and ice accumulations of up to one tenth of 
  an inch.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...From 3 AM Monday to 6 AM CST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
860 
WWUS43 KEAX 242145
WSWEAX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Kansas City/Pleasant Hill MO
345 PM CST Sun Jan 24 2021

...Heavy Snow Expected on Monday in Northern Missouri...

.A rather potent winter storm is still on track to move into the
area late tonight and last through most of the day on Monday. 
Precipitation is expected to increase across the area Monday 
morning, beginning as rain south of the Missouri River, and
transitioning to snow along north of highway 36. In between the
Missouri River and highway 36, a wintry mix of precipitation is
expected. Precipitation is expected to gradually decrease Monday
night from south to north.  

KSZ102-MOZ001>008-011-012-250600-
/O.CON.KEAX.WS.W.0001.210125T0900Z-210126T1200Z/
Doniphan-Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-
Schuyler-Holt-Andrew-
Including the cities of Wathena, Elwood, Troy, Highland, Tarkio, 
Rockport, Fairfax, Maryville, Grant City, Albany, Stanberry, 
King City, Bethany, Princeton, Mercer, Unionville, Lancaster, 
Queen City, Greentop, Downing, Glenwood, Mound City, Oregon, 
Maitland, Forest City, Craig, Savannah, and Country Club Villa
345 PM CST Sun Jan 24 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM MONDAY TO
6 AM CST TUESDAY...

* WHAT...Heavy mixed precipitation expected. Total snow 
  accumulations of 6 to 10 inches and ice accumulations of 
  around one tenth of an inch.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...From 3 AM Monday to 6 AM CST Tuesday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

KSZ025-MOZ013>017-020-023>025-250600-
/O.CON.KEAX.WW.Y.0002.210125T0900Z-210126T1200Z/
Atchison KS-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-
Livingston-Linn MO-Macon-
Including the cities of Atchison, Maysville, Stewartsville, 
Osborn, Union Star, Clarksdale, Gallatin, Jamesport, Trenton, 
Milan, Green City, Kirksville, St. Joseph Airport, St. Joseph, 
Chillicothe, Brookfield, Marceline, Macon, and La Plata
345 PM CST Sun Jan 24 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM MONDAY TO
6 AM CST TUESDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of 2 to 4 inches and ice accumulations of up to one tenth of 
  an inch.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...From 3 AM Monday to 6 AM CST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
754 
WWUS43 KEAX 250301
WSWEAX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Kansas City/Pleasant Hill MO
901 PM CST Sun Jan 24 2021

...Heavy Snow Expected on Monday in Northern Missouri...

.A rather potent winter storm is still on track to move into the
area late tonight and last through most of the day on Monday.
Precipitation is expected to increase across the area Monday
morning, beginning as rain south of the Missouri River, and
transitioning to snow along north of highway 36. In between the
Missouri River and highway 36, a wintry mix of precipitation is
expected. Precipitation is expected to gradually decrease Monday
night from south to north.

KSZ102-MOZ001>008-011-012-251115-
/O.CON.KEAX.WS.W.0001.210125T0900Z-210126T1200Z/
Doniphan-Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-
Schuyler-Holt-Andrew-
Including the cities of Wathena, Elwood, Troy, Highland, Tarkio, 
Rockport, Fairfax, Maryville, Grant City, Albany, Stanberry, 
King City, Bethany, Princeton, Mercer, Unionville, Lancaster, 
Queen City, Greentop, Downing, Glenwood, Mound City, Oregon, 
Maitland, Forest City, Craig, Savannah, and Country Club Villa
901 PM CST Sun Jan 24 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM MONDAY TO
6 AM CST TUESDAY...

* WHAT...Heavy mixed precipitation expected. Total snow 
  accumulations of 6 to 10 inches and ice accumulations of 
  around one tenth of an inch.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...From 3 AM Monday to 6 AM CST Tuesday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Very strong wind, approaching 20 to 30 mph,
  will combine with the heavy snow to dramatically reduce
  visibility to around or below one-quarter mile. Travel across
  northern Missouri is strongly discouraged through the day on
  Monday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

KSZ025-MOZ013>017-020-023>025-251115-
/O.CON.KEAX.WW.Y.0002.210125T0900Z-210126T1200Z/
Atchison KS-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-
Livingston-Linn MO-Macon-
Including the cities of Atchison, Maysville, Stewartsville, 
Osborn, Union Star, Clarksdale, Gallatin, Jamesport, Trenton, 
Milan, Green City, Kirksville, St. Joseph Airport, St. Joseph, 
Chillicothe, Brookfield, Marceline, Macon, and La Plata
901 PM CST Sun Jan 24 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM MONDAY TO
6 AM CST TUESDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of 2 to 4 inches and ice accumulations of up to one tenth of 
  an inch.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...From 3 AM Monday to 6 AM CST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Strong wind around 20 to 30 mph will
  combine with the light to moderate snow to produce some
  visibility restrictions below 1 mile at times. Travel in
  northern Missouri is discouraged Monday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
813 
WWUS43 KEAX 251134
WSWEAX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Kansas City/Pleasant Hill MO
534 AM CST Mon Jan 25 2021

...Heavy Snow Expected on Monday in Northern Missouri...

.A rather potent winter storm is still on track to move into the
area late tonight and last through most of the day on Monday.
Precipitation is expected to increase across the area Monday
morning, beginning as rain south of the Missouri River, and
transitioning to snow along north of highway 36. In between the
Missouri River and highway 36, a wintry mix of precipitation is
expected. Precipitation is expected to gradually decrease Monday
night from south to north.

KSZ102-MOZ001>008-011-012-251945-
/O.CON.KEAX.WS.W.0001.000000T0000Z-210126T1200Z/
Doniphan-Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-
Schuyler-Holt-Andrew-
Including the cities of Wathena, Elwood, Troy, Highland, Tarkio, 
Rockport, Fairfax, Maryville, Grant City, Albany, Stanberry, 
King City, Bethany, Princeton, Mercer, Unionville, Lancaster, 
Queen City, Greentop, Downing, Glenwood, Mound City, Oregon, 
Maitland, Forest City, Craig, Savannah, and Country Club Villa
534 AM CST Mon Jan 25 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...

* WHAT...Heavy mixed precipitation. Additional snow 
  accumulations of 2 to 10 inches and ice accumulations of a 
  light glaze.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...Until 6 AM CST Tuesday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Strong wind, approaching 20 to 30 mph, 
  will combine with the heavy snow to dramatically reduce 
  visibility to around or below one-quarter mile. Travel across 
  northern Missouri is strongly discouraged through the day on 
  Monday. .

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

KSZ025-MOZ013>017-020-023>025-251945-
/O.CON.KEAX.WW.Y.0002.000000T0000Z-210126T1200Z/
Atchison KS-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-
Livingston-Linn MO-Macon-
Including the cities of Atchison, Maysville, Stewartsville, 
Osborn, Union Star, Clarksdale, Gallatin, Jamesport, Trenton, 
Milan, Green City, Kirksville, St. Joseph Airport, St. Joseph, 
Chillicothe, Brookfield, Marceline, Macon, and La Plata
534 AM CST Mon Jan 25 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...

* WHAT...Mixed precipitation. Additional snow accumulations of 1 
  to 3 inches and ice accumulations of around one tenth of an 
  inch.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...Until 6 AM CST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Strong wind around 20 to 30 mph will
  combine with the light to moderate snow to produce some
  visibility restrictions below 1 mile at times. Travel in
  northern Missouri is discouraged Monday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
352 
WWUS43 KEAX 251804
WSWEAX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Kansas City/Pleasant Hill MO
1204 PM CST Mon Jan 25 2021

...Heavy Snow Expected on Monday in Northern Missouri...

.A rather potent winter storm is expected to continue aroud the
region, producing heavy snow along the Iowa/Missouri border with
lesser amounts farther south. Potential for some icing between the
Misosuri River and highway 36. Precipitation is expected to 
gradually decrease Monday night, but areas of drizzle and freezing
drizzle may persist into Tuesday morning. 

KSZ102-MOZ001>008-011-012-260215-
/O.CON.KEAX.WS.W.0001.000000T0000Z-210126T1200Z/
Doniphan-Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-
Schuyler-Holt-Andrew-
Including the cities of Wathena, Elwood, Troy, Highland, Tarkio, 
Rockport, Fairfax, Maryville, Grant City, Albany, Stanberry, 
King City, Bethany, Princeton, Mercer, Unionville, Lancaster, 
Queen City, Greentop, Downing, Glenwood, Mound City, Oregon, 
Maitland, Forest City, Craig, Savannah, and Country Club Villa
1204 PM CST Mon Jan 25 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...

* WHAT...Heavy mixed precipitation. Additional snow 
  accumulations of 3 to 10 inches and ice accumulations of a 
  light glaze.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...Until 6 AM CST Tuesday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

KSZ025-MOZ013>017-020-023>025-260215-
/O.CON.KEAX.WW.Y.0002.000000T0000Z-210126T1200Z/
Atchison KS-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-
Livingston-Linn MO-Macon-
Including the cities of Atchison, Maysville, Stewartsville, 
Osborn, Union Star, Clarksdale, Gallatin, Jamesport, Trenton, 
Milan, Green City, Kirksville, St. Joseph Airport, St. Joseph, 
Chillicothe, Brookfield, Marceline, Macon, and La Plata
1204 PM CST Mon Jan 25 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...

* WHAT...Mixed precipitation. Additional snow accumulations of 1 
  to 3 inches and ice accumulations of around one tenth of an 
  inch.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...Until 6 AM CST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
791 
WWUS43 KEAX 252125
WSWEAX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Kansas City/Pleasant Hill MO
325 PM CST Mon Jan 25 2021

...Strong Winter Storm Continues...

.A strong winter storm is expected to continue around the region,
producing heavy snow along the Iowa/Missouri border with lesser 
amounts farther south. Freezing drizzle is possible between the 
Missouri River and highway 36 overnight. Precipitation is 
expected to gradually decrease Monday night, but areas of drizzle 
and freezing drizzle may persist into Tuesday morning.

KSZ102-MOZ001>008-011-012-260530-
/O.CON.KEAX.WS.W.0001.000000T0000Z-210126T1200Z/
Doniphan-Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-
Schuyler-Holt-Andrew-
Including the cities of Wathena, Elwood, Troy, Highland, Tarkio, 
Rockport, Fairfax, Maryville, Grant City, Albany, Stanberry, 
King City, Bethany, Princeton, Mercer, Unionville, Lancaster, 
Queen City, Greentop, Downing, Glenwood, Mound City, Oregon, 
Maitland, Forest City, Craig, Savannah, and Country Club Villa
325 PM CST Mon Jan 25 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...

* WHAT...Heavy mixed precipitation. Additional snow accumulations
  of 2 to 5 inches and ice accumulations of a light glaze.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...Until 6 AM CST Tuesday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

KSZ025-MOZ013>017-020-023>025-260530-
/O.CON.KEAX.WW.Y.0002.000000T0000Z-210126T1200Z/
Atchison KS-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-
Livingston-Linn MO-Macon-
Including the cities of Atchison, Maysville, Stewartsville, 
Osborn, Union Star, Clarksdale, Gallatin, Jamesport, Trenton, 
Milan, Green City, Kirksville, St. Joseph Airport, St. Joseph, 
Chillicothe, Brookfield, Marceline, Macon, and La Plata
325 PM CST Mon Jan 25 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...

* WHAT...Mixed precipitation. Additional snow accumulations of up
  to two inches and a light glaze of ice.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...Until 6 AM CST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
610 
WWUS43 KEAX 260520
WSWEAX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Kansas City/Pleasant Hill MO
1120 PM CST Mon Jan 25 2021

...Winter Storm Continues...

.Winter weather continues across the region. Heavy snow
accumulations have been observed along the Iowa/Missouri border 
with lesser amounts farther south. Areas of drizzle with embedded 
snow showers continue through Tuesday morning.

KSZ102-MOZ001>008-011-012-261200-
/O.CON.KEAX.WS.W.0001.000000T0000Z-210126T1200Z/
Doniphan-Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-
Schuyler-Holt-Andrew-
Including the cities of Wathena, Elwood, Troy, Highland, Tarkio, 
Rockport, Fairfax, Maryville, Grant City, Albany, Stanberry, 
King City, Bethany, Princeton, Mercer, Unionville, Lancaster, 
Queen City, Greentop, Downing, Glenwood, Mound City, Oregon, 
Maitland, Forest City, Craig, Savannah, and Country Club Villa
1120 PM CST Mon Jan 25 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...

* WHAT...Additional snow accumulations of up to one inch. Freezing
  drizzle may produce a light glaze.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...Until 6 AM CST Tuesday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

KSZ025-MOZ013>017-020-023>025-261200-
/O.CON.KEAX.WW.Y.0002.000000T0000Z-210126T1200Z/
Atchison KS-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-
Livingston-Linn MO-Macon-
Including the cities of Atchison, Maysville, Stewartsville, 
Osborn, Union Star, Clarksdale, Gallatin, Jamesport, Trenton, 
Milan, Green City, Kirksville, St. Joseph Airport, St. Joseph, 
Chillicothe, Brookfield, Marceline, Macon, and La Plata
1120 PM CST Mon Jan 25 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...

* WHAT...Mixed precipitation. Additional snow accumulations of up
  to one inch and ice accumulations of a light glaze due to
  freezing drizzle.

* WHERE...Portions of northeast Kansas and north central, 
  northeast and northwest Missouri.

* WHEN...Until 6 AM CST Tuesday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
477 
WWUS43 KEAX 261017
WSWEAX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Kansas City/Pleasant Hill MO
417 AM CST Tue Jan 26 2021


KSZ102-MOZ001>008-011-012-261130-
/O.CAN.KEAX.WS.W.0001.000000T0000Z-210126T1200Z/
Doniphan-Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-
Schuyler-Holt-Andrew-
Including the cities of Wathena, Elwood, Troy, Highland, Tarkio, 
Rockport, Fairfax, Maryville, Grant City, Albany, Stanberry, 
King City, Bethany, Princeton, Mercer, Unionville, Lancaster, 
Queen City, Greentop, Downing, Glenwood, Mound City, Oregon, 
Maitland, Forest City, Craig, Savannah, and Country Club Villa
417 AM CST Tue Jan 26 2021

...WINTER STORM WARNING IS CANCELLED...

Some light snow this morning may produce an additional dusting of
snow however, no additional accumulations are expected.

$$

KSZ025-MOZ013>017-020-023>025-261130-
/O.CAN.KEAX.WW.Y.0002.000000T0000Z-210126T1200Z/
Atchison KS-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-
Livingston-Linn MO-Macon-
Including the cities of Atchison, Maysville, Stewartsville, 
Osborn, Union Star, Clarksdale, Gallatin, Jamesport, Trenton, 
Milan, Green City, Kirksville, St. Joseph Airport, St. Joseph, 
Chillicothe, Brookfield, Marceline, Macon, and La Plata
417 AM CST Tue Jan 26 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Some light snow this morning may produce an additional dusting of
snow however, no additional accumulations are expected.

$$

What forecasters said that day

The local office's own words before this winter weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Kansas City, MO wrote its last area forecast discussion before this winter weather advisory went out at Jan 23, 10:50 PM CST, 4 hours 23 minutes earlier.

Area forecast discussion, Jan 23, 10:50 PM CST, 4 hours 23 minutes before
AREA FORECAST DISCUSSION
National Weather Service Kansas City/Pleasant Hill MO
1050 PM CST Sat Jan 23 2021

.Discussion...
Issued at 350 PM CST SAT JAN 23 2021

Key Points:

- Abundant cloud cover with areas of drizzle possible through the
overnight into Sunday morning.  Temperatures are expected to be warm
enough to lead to minimal impact, with the exception of far
northwest Missouri.

-Strong mid level wave is expected to impact the region on Monday,
creating the potential for heavy snow across portions of Northern
Missouri.  Have issued a winter storm watch along and north of
highway 36.

Detailed discussion...

Radar returns are starting to increase across eastern Kansas into
northern Missouri as a series of weak impulses move across the area.
 These waves are expected to lead to increasing saturation aloft and
may see pockets of drizzle develop through the overnight. Near
surface layer still remains quite dry with dew points in the single
digits and lower teens, so will take some time to get precipitation
at the surface.  Models have warmed the lower levels through the
evening into the overnight, so unless we wetbulb below freezing, any
precipitation overnight should remain drizzle.  The exception of
this would be across far northwest Missouri where surface
temperatures will fall within a few degrees of freezing.

Abundant clouds are expected through the day on Sunday keeping
temperatures from warming substantially.  As long as light
precipitation is able to come to an end through the day, should see
temperatures creep into the mid and upper 30s north of the Missouri
River; however, if precipitation lingers, will likely see cooler
temperatures throughout the day. These temperatures will be
important as it will set the stage ahead of a vigorous shortwave
moving in to the plains on Monday.

Ahead of the wave, abundant Gulf moisture is expected to spread
northward with PWAT of 0.5-0.75". Isentropic lift on the 290-300K
surface increases through the evening hours Sunday night from south
to north, leading to rain developing. As precipitation shield
expands north of the Missouri River, precipitation type is expected
to transition to a wintery mix with a warm nose in the 900-800 mb
layer remaining and sub freezing surface temperatures.  Cooler air
aloft is expected to wrap into the region along with dynamic cooling
resulting in a transition from freezing rain to snow Monday morning
along and north of highway 36.  Kissing jet streaks will also aid in
enhancing the lift through through at least the morning hours on
Monday. Strong lift is expected through the afternoon hours, leading
to heavy snowfall rates through the afternoon hours on Monday.  Lift
is expected to weaken across the area on Monday evening, but still
lingers along the Iowa/Missouri border Monday night and possibly
into Tuesday. Am still a bit concerned with moisture availability
with this system as it appears there will be a significant amount of
warm sector convection downstream with this system. This will be a
key thing to watch as the system approaches.  Despite moisture
concerns, strong low level theta-e advection is strong enough for
the potential for heavy snow and have elected to issue a winter
storm watch along and north of Highway 36 for Monday into Tuesday
morning.

Will also need to keep an eye on Wednesday as an upper wave across
the western US lifts north and phases with a kicker wave.  Models
are suggesting that the southern wave would be the stronger of the
two systems, with northern Missouri possibly getting split by the
two waves.  For now, have chance pops in the forecast with these
systems.

Thereafter, upper ridge is expected to build into the central US
leading to warming/melting around the region.

&&

.Aviation...(For the 06Z TAFS through 06Z Sunday Night)
Issued at 1047 PM CST SAT JAN 23 2021

Fairly pessimistic forecast in store for the terminals over the
next 24 hours, with minimal time at VFR conditions. Low clouds
will persist at the terminals through the night tonight and
through Sunday. Light precipitation will form early Sunday
morning, but doesn't look like it will be frozen. After a lull
through the day on Monday, more widespread rain/snow moves into
the terminals late Sunday night. More frozen precipitation, mainly
at KSTJ and to a lesser extent KMCI is in store beyond the
timeframe of this particular forecast.

&&

.EAX WATCHES/WARNINGS/ADVISORIES...
KS...Winter Storm Watch from late Sunday night through late Monday
     night for KSZ025-102.

MO...Winter Storm Watch from late Sunday night through late Monday
     night for MOZ001>008-011>017-020.

&&

Discussion...BT
Aviation...Leighton
Hazardous weather outlook, Jan 23, 3:09 PM CST, 12 hours 4 minutes before
Hazardous Weather Outlook
National Weather Service Kansas City/Pleasant Hill MO
309 PM CST Sat Jan 23 2021

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-242115-
Atchison KS-Miami-Linn KS-Doniphan-Leavenworth-Wyandotte-Johnson KS-
Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-Schuyler-
Holt-Andrew-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-Clinton-
Caldwell-Livingston-Linn MO-Macon-Platte-Clay-Ray-Carroll-Chariton-
Randolph-Jackson-Lafayette-Saline-Howard-Cass-Johnson MO-Pettis-
Cooper-Bates-Henry-
309 PM CST Sat Jan 23 2021

This hazardous weather outlook is for northwest...north central and
west central Missouri...as well as extreme eastern Kansas.

.DAY ONE...This Afternoon and Tonight

 There is the chance for some light freezing drizzle tonight along
 the Missouri/Iowa border.

 More detailed information can be accessed at...
 https://www.weather.gov/eax/hwo

.DAYS TWO THROUGH SEVEN...Sunday through Friday

 Heavy snow is expected late Sunday night through Monday along and
 north of a St Joseph to Kirksville line. South of that line a sharp
 cut off in snow totals is expected as more of a wintry mix is
 expected.

 More detailed information can be accessed at...
 https://www.weather.gov/eax/hwo

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 24, 3:13 AM CSTWinter Storm WarningEAXAndrew, Atchison, Gentry, Harrison, Holt, Mercer and 4 more49 hr

Nearby

Winter Weather Advisories in Missouri, 2021Winter Weather Advisories in Kansas, 2021Every winter weather advisory 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.