Alert archive / Missouri / Wind Chill Advisories in 2020

Wind Chill Advisory 3, NWS Kansas City, MO

February 12, 202028 counties in Missouri; 5 counties in Kansas

NWS Kansas City, MO issued this wind chill advisory at Feb 12, 2020, 3:27 AM CST for 28 counties in Missouri; 5 counties in Kansas. It took effect at Feb 13, 2020, 12:00 AM CST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Feb 12, 2020, 3:27 AM CST (09:27 UTC)
In effect from
Feb 13, 2020, 12:00 AM CST
Expired
Feb 13, 2020, 11:45 AM CST
In force
12 hr
Issued by
NWS Kansas City, MO
All 33 counties

Atchison County, KS, Doniphan County, KS, Johnson County, KS, Leavenworth County, KS, Wyandotte County, KS, Adair County, MO, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Holt County, MO, Jackson County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Mercer County, MO, Nodaway County, MO, Platte County, MO, Putnam County, MO, Randolph County, MO, Ray County, MO, Schuyler County, MO, Sullivan County, MO, Worth County, MO

The radar

The Pleasant Hill radar (KEAX), 114 km from the middle of the area, began a volume at 09:30 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, 9.5 hours before the alert went out and 164 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 2020-02-12Temperature 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 2020-02-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 square meters per square second.1939587897117136156175Sfc1 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
1928 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

939 
WWUS43 KEAX 120927
WSWEAX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Kansas City/Pleasant Hill MO
327 AM CST Wed Feb 12 2020

...Wintry Mess Wednesday...

.A winter storm will spread northward across eastern Kansas and 
Missouri this morning, and linger through tonight. This storm 
will start as snow, but surface temperatures may warm up just 
enough to convert the precipitation type to rain or a rain/snow 
mix by the afternoon hours. This may lead to slushy roads today. This
evening temperatures will fall back below freezing as a strong 
cold front moves through the area changing precipitation back to 
all snow. In addition, with temperatues falling quickly tonight, 
any wet surfaces and roadways are expected to flash freeze and 
cause further travel issues.

KSZ103-MOZ025-028>032-122200-
/O.NEW.KEAX.WC.Y.0003.200213T0600Z-200213T1800Z/
/O.CON.KEAX.WW.Y.0008.200212T1500Z-200213T0600Z/
Leavenworth-Macon-Platte-Clay-Ray-Carroll-Chariton-
Including the cities of Fort Leavenworth, Leavenworth, Lansing, 
Macon, La Plata, Parkville, Platte City, Riverside, 
Weatherby Lake, Weston, Gladstone, Liberty, Excelsior Springs, 
Richmond, Lawson, Carrollton, Salisbury, Brunswick, 
and Keytesville
327 AM CST Wed Feb 12 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 AM THIS
MORNING TO MIDNIGHT CST TONIGHT...
...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON
CST THURSDAY...

* WHAT...For the Winter Weather Advisory, snow expected. Total 
  snow accumulations of 1 to 3 inches. Winds gusting as high as 
  35 mph. For the Wind Chill Advisory, very cold wind chills 
  expected. Wind chills as low as 15 below zero.

* WHERE...Portions of northeast Kansas and north central and 
  west central Missouri.

* WHEN...For the Winter Weather Advisory, from 9 AM this morning 
  to midnight CST tonight. For the Wind Chill Advisory, from 
  midnight tonight to noon CST Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute. The 
  cold wind chills could result in hypothermia if precautions 
  are not taken.

* ADDITIONAL DETAILS...Roadways may remain slick overnight into
  Thursday as temperatures remain well below freezing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1 in Kansas or visiting
traveler.modot.org in Missouri.

&&

$$

MOZ006>008-014>017-021>024-122200-
/O.NEW.KEAX.WC.Y.0003.200213T0600Z-200213T1800Z/
/O.CON.KEAX.WW.Y.0008.200212T1800Z-200213T0600Z/
Mercer-Putnam-Schuyler-Daviess-Grundy-Sullivan-Adair-Clinton-
Caldwell-Livingston-Linn MO-
Including the cities of Princeton, Mercer, Unionville, Lancaster,
Queen City, Greentop, Downing, Glenwood, Gallatin, Jamesport, 
Trenton, Milan, Green City, Kirksville, Cameron, Plattsburg, 
Lathrop, Hamilton, Braymer, Polo, Breckenridge, Chillicothe, 
Brookfield, and Marceline
327 AM CST Wed Feb 12 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
MIDNIGHT CST TONIGHT...
...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON
CST THURSDAY...

* WHAT...For the Winter Weather Advisory, snow expected. Total
  snow accumulations of one to two inches. Winds gusting as high
  as 35 mph. For the Wind Chill Advisory, very cold wind chills
  expected. Wind chills between 15 to 25 below zero.

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

* WHEN...For the Winter Weather Advisory, from noon today to 
  midnight CST tonight. For the Wind Chill Advisory, from 
  midnight tonight to noon CST Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute. The 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 30 minutes.

* ADDITIONAL DETAILS...Roadways may remain slick overnight into
  Thursday as temperatures remain well below freezing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1 in Kansas or visiting
traveler.modot.org in Missouri.

&&

$$

KSZ025-102-MOZ001>005-011>013-020-122200-
/O.NEW.KEAX.WC.Y.0003.200213T0600Z-200213T1800Z/
Atchison KS-Doniphan-Atchison MO-Nodaway-Worth-Gentry-Harrison-
Holt-Andrew-De Kalb-Buchanan-
Including the cities of Atchison, Wathena, Elwood, Troy, 
Highland, Tarkio, Rockport, Fairfax, Maryville, Grant City, 
Albany, Stanberry, King City, Bethany, Mound City, Oregon, 
Maitland, Forest City, Craig, Savannah, Country Club Villa, 
Maysville, Stewartsville, Osborn, Union Star, Clarksdale, 
St. Joseph Airport, and St. Joseph
327 AM CST Wed Feb 12 2020

...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON
CST THURSDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  15 to 25 below zero.

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

* WHEN...From midnight tonight to noon CST Thursday.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Roadways may remain slick overnight into
  Thursday as temperatures remain well below freezing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

KSZ057-060-MOZ043>045-053-054-122200-
/O.CON.KEAX.WW.Y.0008.200212T1200Z-200213T0600Z/
Miami-Linn KS-Cass-Johnson MO-Pettis-Bates-Henry-
Including the cities of Paola, Osawatomie, Louisburg, Pleasanton,
La Cygne, Mound City, Belton, Raymore, Harrisonville, 
Pleasant Hill, Warrensburg, Sedalia, Butler, Adrian, Rich Hill, 
Clinton, and Windsor
327 AM CST Wed Feb 12 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow expected. Total snow accumulations of 1 to 3 
  inches.

* WHERE...Portions of east central Kansas and central and west 
  central Missouri.

* WHEN...Until midnight CST tonight.

* 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 in Kansas or visiting
traveler.modot.org in Missouri.

&&

$$

KSZ104-105-MOZ033-037>040-046-122200-
/O.CON.KEAX.WW.Y.0008.200212T1500Z-200213T0600Z/
Wyandotte-Johnson KS-Randolph-Jackson-Lafayette-Saline-Howard-
Cooper-
Including the cities of Kansas City Kansas, Overland Park, 
Stanley, Olathe, Shawnee, Lenexa, Moberly, Kansas City, 
Independence, Odessa, Higginsville, Lexington, Concordia, 
Marshall, Fayette, Glasgow, New Franklin, and Boonville
327 AM CST Wed Feb 12 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 AM THIS
MORNING TO MIDNIGHT CST TONIGHT...

* WHAT...Snow expected. Total snow accumulations of 1 to 3 
  inches.

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

* WHEN...From 9 AM this morning to midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the 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 in Kansas or visiting
traveler.modot.org in Missouri.

&&

$$
4 follow-up statements
584 
WWUS43 KEAX 122127
WSWEAX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Kansas City/Pleasant Hill MO
327 PM CST Wed Feb 12 2020

...Wintry Mess into Tonight...

.Expect moderate to light snowfall to persist into the evening
hours when a strong arctic cold front will blast into the region,
putting a stop to the snow, but also bringing dangerously cold
wind chills to the region Thursday morning. 

MOZ033-130530-
/O.EXA.KEAX.WC.Y.0003.200213T0600Z-200213T1800Z/
/O.CON.KEAX.WW.Y.0008.000000T0000Z-200213T0600Z/
Randolph-
Including the city of Moberly
327 PM CST Wed Feb 12 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON
CST THURSDAY...

* WHAT...For the Winter Weather Advisory, snow. Additional snow
  accumulations of 1 to 3 inches. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 15 below 
  zero.

* WHERE...Randolph County.

* WHEN...For the Winter Weather Advisory, until midnight CST 
  tonight. For the Wind Chill Advisory, from midnight tonight to 
  noon CST Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute. The 
  cold wind chills could result in hypothermia if precautions 
  are not taken.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1 in Kansas or visiting
traveler.modot.org in Missouri.

&&

$$

KSZ103-MOZ025-028>032-130530-
/O.CON.KEAX.WW.Y.0008.000000T0000Z-200213T0600Z/
/O.CON.KEAX.WC.Y.0003.200213T0600Z-200213T1800Z/
Leavenworth-Macon-Platte-Clay-Ray-Carroll-Chariton-
Including the cities of Fort Leavenworth, Leavenworth, Lansing, 
Macon, La Plata, Parkville, Platte City, Riverside, 
Weatherby Lake, Weston, Gladstone, Liberty, Excelsior Springs, 
Richmond, Lawson, Carrollton, Salisbury, Brunswick, 
and Keytesville
327 PM CST Wed Feb 12 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
NOON CST THURSDAY...

* WHAT...For the Winter Weather Advisory, snow. Additional snow 
  accumulations of 1 to 3 inches. Winds gusting as high as 35 
  mph. For the Wind Chill Advisory, very cold wind chills 
  expected. Wind chills as low as 20 below zero.

* WHERE...Portions of northeast Kansas and north central and 
  west central Missouri.

* WHEN...For the Winter Weather Advisory, until midnight CST 
  tonight. For the Wind Chill Advisory, from midnight tonight to 
  noon CST Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute. The 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 30 minutes.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1 in Kansas or visiting
traveler.modot.org in Missouri.

&&

$$

MOZ006>008-014>017-021>024-130530-
/O.CON.KEAX.WW.Y.0008.000000T0000Z-200213T0600Z/
/O.CON.KEAX.WC.Y.0003.200213T0600Z-200213T1800Z/
Mercer-Putnam-Schuyler-Daviess-Grundy-Sullivan-Adair-Clinton-
Caldwell-Livingston-Linn MO-
Including the cities of Princeton, Mercer, Unionville, Lancaster,
Queen City, Greentop, Downing, Glenwood, Gallatin, Jamesport, 
Trenton, Milan, Green City, Kirksville, Cameron, Plattsburg, 
Lathrop, Hamilton, Braymer, Polo, Breckenridge, Chillicothe, 
Brookfield, and Marceline
327 PM CST Wed Feb 12 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
NOON CST THURSDAY...

* WHAT...For the Winter Weather Advisory, snow. Additional snow
  accumulations of up to two inches. Winds gusting as high as 35
  mph. For the Wind Chill Advisory, very cold wind chills
  expected. Wind chills as low as 24 below zero.

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

* WHEN...For the Winter Weather Advisory, until midnight CST 
  tonight. For the Wind Chill Advisory, from midnight tonight to 
  noon CST Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the morning or evening commute. The cold
  wind chills could cause frostbite on exposed skin in as little
  as 30 minutes.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1 in Kansas or visiting
traveler.modot.org in Missouri.

&&

$$

KSZ057-060-MOZ043>045-053-054-130530-
/O.CON.KEAX.WW.Y.0008.000000T0000Z-200213T0600Z/
Miami-Linn KS-Cass-Johnson MO-Pettis-Bates-Henry-
Including the cities of Paola, Osawatomie, Louisburg, Pleasanton,
La Cygne, Mound City, Belton, Raymore, Harrisonville, 
Pleasant Hill, Warrensburg, Sedalia, Butler, Adrian, Rich Hill, 
Clinton, and Windsor
327 PM CST Wed Feb 12 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches.

* WHERE...Portions of east central Kansas and central and west 
  central Missouri.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the 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 in Kansas or visiting
traveler.modot.org in Missouri.

&&

$$

KSZ104-105-MOZ037>040-046-130530-
/O.CON.KEAX.WW.Y.0008.000000T0000Z-200213T0600Z/
Wyandotte-Johnson KS-Jackson-Lafayette-Saline-Howard-Cooper-
Including the cities of Kansas City Kansas, Overland Park, 
Stanley, Olathe, Shawnee, Lenexa, Kansas City, Independence, 
Odessa, Higginsville, Lexington, Concordia, Marshall, Fayette, 
Glasgow, New Franklin, and Boonville
327 PM CST Wed Feb 12 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches.

* WHERE...Portions of east central and northeast Kansas and 
  central and west central Missouri.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the 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 in Kansas or visiting
traveler.modot.org in Missouri.

&&

$$

KSZ025-102-MOZ001>005-011>013-020-130530-
/O.CON.KEAX.WC.Y.0003.200213T0600Z-200213T1800Z/
Atchison KS-Doniphan-Atchison MO-Nodaway-Worth-Gentry-Harrison-
Holt-Andrew-De Kalb-Buchanan-
Including the cities of Atchison, Wathena, Elwood, Troy, 
Highland, Tarkio, Rockport, Fairfax, Maryville, Grant City, 
Albany, Stanberry, King City, Bethany, Mound City, Oregon, 
Maitland, Forest City, Craig, Savannah, Country Club Villa, 
Maysville, Stewartsville, Osborn, Union Star, Clarksdale, 
St. Joseph Airport, and St. Joseph
327 PM CST Wed Feb 12 2020

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
NOON CST THURSDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  25 below zero.

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

* WHEN...From midnight tonight to noon CST Thursday.

* IMPACTS...The cold wind chills could cause frostbite on exposed
  skin in as little as 30 minutes.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$
113 
WWUS43 KEAX 130557
WSWEAX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Kansas City/Pleasant Hill MO
1157 PM CST Wed Feb 12 2020

...Dangerously Cold Wind Chills Through Thursday Morning...

A strong cold front will push through the region through midnight.
Behind this front, strong northwest winds and dangerously cold 
wind chills will develop and spread across the region through the
morning.

KSZ103-MOZ025-028>033-131200-
/O.EXP.KEAX.WW.Y.0008.000000T0000Z-200213T0600Z/
/O.CON.KEAX.WC.Y.0003.200213T0600Z-200213T1800Z/
Leavenworth-Macon-Platte-Clay-Ray-Carroll-Chariton-Randolph-
Including the cities of Fort Leavenworth, Leavenworth, Lansing, 
Macon, La Plata, Parkville, Platte City, Riverside, 
Weatherby Lake, Weston, Gladstone, Liberty, Excelsior Springs, 
Richmond, Lawson, Carrollton, Salisbury, Brunswick, Keytesville, 
and Moberly
1157 PM CST Wed Feb 12 2020

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST
THURSDAY...
...WINTER WEATHER ADVISORY WILL EXPIRE AT MIDNIGHT CST TONIGHT...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  20 below zero.

* WHERE...Portions of northeast Kansas and north central and 
  west central Missouri.

* WHEN...For the Winter Weather Advisory, until midnight CST 
  tonight. For the Wind Chill Advisory, from midnight tonight to 
  noon CST Thursday.

* IMPACTS...The cold wind chills could cause frostbite on exposed
  skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

MOZ006>008-014>017-021>024-131200-
/O.EXP.KEAX.WW.Y.0008.000000T0000Z-200213T0600Z/
/O.CON.KEAX.WC.Y.0003.200213T0600Z-200213T1800Z/
Mercer-Putnam-Schuyler-Daviess-Grundy-Sullivan-Adair-Clinton-
Caldwell-Livingston-Linn MO-
Including the cities of Princeton, Mercer, Unionville, Lancaster,
Queen City, Greentop, Downing, Glenwood, Gallatin, Jamesport, 
Trenton, Milan, Green City, Kirksville, Cameron, Plattsburg, 
Lathrop, Hamilton, Braymer, Polo, Breckenridge, Chillicothe, 
Brookfield, and Marceline
1157 PM CST Wed Feb 12 2020

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST
THURSDAY...
...WINTER WEATHER ADVISORY WILL EXPIRE AT MIDNIGHT CST TONIGHT...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  25 below zero.

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

* WHEN...For the Winter Weather Advisory, until midnight CST 
  tonight. For the Wind Chill Advisory, from midnight tonight to 
  noon CST Thursday.

* IMPACTS...The cold wind chills could cause frostbite on exposed
  skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

KSZ057-060-MOZ043>045-053-054-130700-
/O.EXP.KEAX.WW.Y.0008.000000T0000Z-200213T0600Z/
Miami-Linn KS-Cass-Johnson MO-Pettis-Bates-Henry-
Including the cities of Paola, Osawatomie, Louisburg, Pleasanton,
La Cygne, Mound City, Belton, Raymore, Harrisonville, 
Pleasant Hill, Warrensburg, Sedalia, Butler, Adrian, Rich Hill, 
Clinton, and Windsor
1157 PM CST Wed Feb 12 2020

...WINTER WEATHER ADVISORY WILL EXPIRE AT MIDNIGHT CST TONIGHT...

Snow has ended across the region, but dangerously cold wind chills
will develop overnight. Freezing of water on roads may result in
numerous slick spots for the Thursday morning commute.

$$

KSZ104-105-MOZ037>040-046-130700-
/O.EXP.KEAX.WW.Y.0008.000000T0000Z-200213T0600Z/
Wyandotte-Johnson KS-Jackson-Lafayette-Saline-Howard-Cooper-
Including the cities of Kansas City Kansas, Overland Park, 
Stanley, Olathe, Shawnee, Lenexa, Kansas City, Independence, 
Odessa, Higginsville, Lexington, Concordia, Marshall, Fayette, 
Glasgow, New Franklin, and Boonville
1157 PM CST Wed Feb 12 2020

...WINTER WEATHER ADVISORY WILL EXPIRE AT MIDNIGHT CST TONIGHT...

Snow has ended across the region, but dangerously cold wind chills
will develop overnight. Freezing of water on roads may result in
numerous slick spots for the Thursday morning commute.

$$

KSZ025-102-MOZ001>005-011>013-020-131200-
/O.CON.KEAX.WC.Y.0003.200213T0600Z-200213T1800Z/
Atchison KS-Doniphan-Atchison MO-Nodaway-Worth-Gentry-Harrison-
Holt-Andrew-De Kalb-Buchanan-
Including the cities of Atchison, Wathena, Elwood, Troy, 
Highland, Tarkio, Rockport, Fairfax, Maryville, Grant City, 
Albany, Stanberry, King City, Bethany, Mound City, Oregon, 
Maitland, Forest City, Craig, Savannah, Country Club Villa, 
Maysville, Stewartsville, Osborn, Union Star, Clarksdale, 
St. Joseph Airport, and St. Joseph
1157 PM CST Wed Feb 12 2020

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST
THURSDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  25 below zero.

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

* WHEN...From midnight tonight to noon CST Thursday.

* IMPACTS...The cold wind chills could cause frostbite on exposed
  skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

&&

$$

Kurtz
288 
WWUS43 KEAX 131137
WSWEAX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Kansas City/Pleasant Hill MO
537 AM CST Thu Feb 13 2020

...Dangerously Cold Wind Chills Through Thursday Morning...

A strong cold front has pushed through the region. Behind this 
front, strong northwest winds and dangerously cold wind chills 
have developed and spread across the region through the morning.

KSZ104-105-MOZ037-131800-
/O.EXA.KEAX.WC.Y.0003.000000T0000Z-200213T1800Z/
Wyandotte-Johnson KS-Jackson-
Including the cities of Kansas City Kansas, Overland Park, 
Stanley, Olathe, Shawnee, Lenexa, Kansas City, and Independence
537 AM CST Thu Feb 13 2020

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST TODAY...

* WHAT...Very cold wind chills. Wind chills as low as 15 below 
  zero.

* WHERE...In Kansas, Wyandotte and Johnson KS Counties. In 
  Missouri, Jackson County.

* WHEN...Until noon CST today.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

KSZ025-102-103-MOZ001>008-011>017-020>025-028>033-131800-
/O.CON.KEAX.WC.Y.0003.000000T0000Z-200213T1800Z/
Atchison KS-Doniphan-Leavenworth-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-
Including the cities of Atchison, Wathena, Elwood, Troy, 
Highland, Fort Leavenworth, Leavenworth, Lansing, 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, Country Club Villa, 
Maysville, Stewartsville, Osborn, Union Star, Clarksdale, 
Gallatin, Jamesport, Trenton, Milan, Green City, Kirksville, 
St. Joseph Airport, St. Joseph, Cameron, Plattsburg, Lathrop, 
Hamilton, Braymer, Polo, Breckenridge, Chillicothe, Brookfield, 
Marceline, Macon, La Plata, Parkville, Platte City, Riverside, 
Weatherby Lake, Weston, Gladstone, Liberty, Excelsior Springs, 
Richmond, Lawson, Carrollton, Salisbury, Brunswick, Keytesville, 
and Moberly
537 AM CST Thu Feb 13 2020

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WHAT...Very cold wind chills. Wind chills as low as 25 below 
  zero.

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

* WHEN...Until noon CST today.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$
312 
WWUS43 KEAX 131745
WSWEAX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Kansas City/Pleasant Hill MO
1145 AM CST Thu Feb 13 2020


KSZ025-102>105-MOZ001>008-011>017-020>025-028>033-037-131845-
/O.CAN.KEAX.WC.Y.0003.000000T0000Z-200213T1800Z/
Atchison 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-
Including the cities of Atchison, Wathena, Elwood, Troy, 
Highland, Fort Leavenworth, Leavenworth, Lansing, 
Kansas City Kansas, Overland Park, Stanley, Olathe, Shawnee, 
Lenexa, 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, 
Country Club Villa, Maysville, Stewartsville, Osborn, Union Star,
Clarksdale, Gallatin, Jamesport, Trenton, Milan, Green City, 
Kirksville, St. Joseph Airport, St. Joseph, Cameron, Plattsburg, 
Lathrop, Hamilton, Braymer, Polo, Breckenridge, Chillicothe, 
Brookfield, Marceline, Macon, La Plata, Parkville, Platte City, 
Riverside, Weatherby Lake, Weston, Gladstone, Liberty, 
Excelsior Springs, Richmond, Lawson, Carrollton, Salisbury, 
Brunswick, Keytesville, Moberly, Kansas City, and Independence
1145 AM CST Thu Feb 13 2020

...WIND CHILL ADVISORY IS CANCELLED...

Temperatures have warmed and likewise wind chills have improved
across the area. Highs today will only reach the single digits to
middle teens. 

$$

What forecasters said that day

The local office's own words before this wind chill 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 wind chill advisory went out at Feb 11, 11:30 PM CST, 3 hours 57 minutes earlier.

Area forecast discussion, Feb 11, 11:30 PM CST, 3 hours 57 minutes before
AREA FORECAST DISCUSSION
National Weather Service Kansas City/Pleasant Hill MO
1130 PM CST Tue Feb 11 2020

.Discussion...
Issued at 345 PM CST TUE FEB 11 2020

A messy winter weather forecast is in store for eastern Kansas and
Missouri Wednesday into Thursday as a couple of shortwave troughs
interact and sweep across the Plains States, which will then usher
in some of the coldest temperatures we have seen yet this year for
the end of the work week.

Water vapor loop this afternoon show a leading shortwave spinning
its way slowly east across the Arizona/Mexico border, on the
southwest side of a larger broad trough that is otherwise dominating
the northern half of North America. Of note within the large
continental trough is a stout shortwave, seen zipping into western
Canada, which is expected to interact with the leading Arizona
shortwave as an arctic airmass sweeps south across the Plains
States, making for what will be a messy winter weather event
Wednesday morning through early Thursday morning.

Confidence is growing that a wintry weather mess is in store for the
region as models continue to converge on a wet solution for
Wednesday and Wednesday night as the Arizona shortwave starts to
eject across the Plains. Model tracks from the operational
NAM/GFS/CAN/ECMWF, and ensembles, are all pointing at very similar
path for the storm, which brings the system up through eastern
Kansas and Missouri. However, while confidence in the track of the
storm is rather high, precipitation types at the surface, and the
conditions that will result in, is rather low owing to boundary
layer temperatures. Soundings and model solutions all point at
precipitation coming in as snow Wednesday morning, which makes sense
with early morning lows a little below freezing; but expectations
are that we will warm just a little through the day as the truly
arctic air wont arrive until that evening as the secondary shortwave
brings the Canadian air south. Have muted the high temperatures from
what the models gave me for Wednesday, but even then we still have
highs 4 or 5 degrees above freezing in the late morning to afternoon
hours, which will have a significant effect on snowfall totals.
WAnd, wile most of the models agree on the track, snow totals are
spread across a wide margin, with the NAM looking to be the most
aggressive up through the 12Z model runs this morning; though the
18Z NAM run has backed off on the higher totals. With all this in
mind, have issued a Winter Weather Advisory for Wednesday for a mix
of wintry weather and snow. Expect later shifts may be able to pin
down timing a bit better and will make further adjustments to the
timing and coverage of the Advisory.

Once we get past the wintry weather of Wednesday night, expect some
of the coldest temperatures of the year, thus far, as an arctic
airmass settles across the region. This will likely result in
morning lows in the low double and single digits Thursday and single
digits and lower Friday morning. A Wind Chill Advisory may be needed
for Thursday and/or Friday morning. Will leave it to later shifts to
evaluate the need for Wind Chill Advisory late this work week. But,
good news, it wont stay cold with temperatures expected to climb
back into the 40s and 50s this weekend.

&&

.Aviation...(For the 06Z TAFS through 06Z Wednesday Night)
Issued at 1126 PM CST TUE FEB 11 2020

VFR conditions are expected to persist through at least sunrise,
after which, conditions will degrade quickly. MVFR ceilings will
move in through 14 to 16Z, along with increasing chances for snow.
Through 18z, most sites will see a drop to IFR ceilings and a
change to rain-snow mix or rain, persisting through the afternoon
into the evening. A strong cold front will push in around 00Z,
this will result in south-southwest winds shifting more northwest
and increasing considerably, with sustained winds around 20kts and
gusts to 30kts. Light snow will likely linger through 06Z.

&&

.EAX WATCHES/WARNINGS/ADVISORIES...
KS...Winter Weather Advisory from 6 AM Wednesday to midnight CST
     Wednesday night for KSZ057-060.

     Winter Weather Advisory from 9 AM Wednesday to midnight CST
     Wednesday night for KSZ103>105.

MO...Winter Weather Advisory from 6 AM Wednesday to midnight CST
     Wednesday night for MOZ043>045-053-054.

     Winter Weather Advisory from 9 AM Wednesday to midnight CST
     Wednesday night for MOZ025-028>033-037>040-046.

     Winter Weather Advisory from noon Wednesday to midnight CST
     Wednesday night for MOZ006>008-014>017-021>024.

&&

Discussion...Cutter
Aviation...Kurtz
Hazardous weather outlook, Feb 11, 4:28 AM CST, 22 hours 59 minutes before
Hazardous Weather Outlook
National Weather Service Kansas City/Pleasant Hill MO
428 AM CST Tue Feb 11 2020

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-121030-
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-
428 AM CST Tue Feb 11 2020

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

.DAY ONE...Today and Tonight

 No hazardous weather is expected at this time.

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

 Snow is expected to move in early Wednesday morning from the south.
A change over to a rain/snow mix is expected for most of the area for
the afternoon with a transition back to snow Wednesday evening.
Temperatures will be near freezing, so a slight change could result
in more or less snow. Both the Wednesday morning and evening commutes
should expect slick roads. Snow will move to the east Wednesday
night.

Cold temperatures will filter in quickly Wednesday night. The quick
drop in temperatures will freeze wet roads creating black ice and
therefore slick conditions Thursday morning. Temperatures Thursday
morning will be in the single digits to teens with wind chills below
zero up north and single digits above zero in our southern counties.
Friday morning will also be cold with low temperatures below zero in
northeast MO and single digits elsewhere. Wind chills will be in the
single digits below zero to single digits above zero.

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

Nearby

Wind Chill Advisories in Missouri, 2020Wind Chill Advisories in Kansas, 2020Every wind chill advisory in 2020

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.