Alert archive / Nebraska / Winter Weather Advisories in 2021

Winter Weather Advisory 4, NWS North Platte, NE

February 5, 202120 counties in Nebraska

NWS North Platte, NE issued this winter weather advisory at Feb 5, 2021, 2:25 AM MST for 20 counties in Nebraska. It took effect at Feb 5, 2021, 9:00 PM MST. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Feb 5, 2021, 2:25 AM MST (09:25 UTC)
In effect from
Feb 5, 2021, 9:00 PM MST
Expired
Feb 6, 2021, 11:00 AM MST
In force
14 hr
Issued by
NWS North Platte, NE

Counties Arthur County, NE, Blaine County, NE, Brown County, NE, Cherry County, NE, Custer County, NE, Deuel County, NE, Garden County, NE, Garfield County, NE, Grant County, NE, Holt County, NE, Hooker County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Rock County, NE, Sheridan County, NE, Thomas County, NE, Wheeler County, NE

The radar

The North Platte radar (KLNX), 13 km from the middle of the area, began a volume at 09:26 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 9.4 hours before the alert went out and 79 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, N. Platte/Lee Bi, NE at 00:00Z on 2021-02-05Temperature 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, N. Platte/Lee Bi, NE at 00:00Z on 2021-02-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 square meters per square second.19395878Sfc1 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
2044 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

505 
WWUS43 KLBF 050925
WSWLBF

URGENT - WINTER WEATHER MESSAGE
National Weather Service North Platte NE
325 AM CST Fri Feb 5 2021

...WINTER WEATHER RETURNS TO WESTERN AND NORTH CENTRAL NEBRASKA
TONIGHT INTO SATURDAY...

.An arctic front will drop southward through the area tonight.
Meanwhile, a storm system will move southeast and produce 
moderate snowfall amounts of 2 to 4 inches. Locally higher 
amounts around 5 inches are possible. Winds will be east to 
northeast tonight, then northerly Saturday morning, and remain 
fairly light at 5 to 15 mph. 

NEZ005-008>010-023>029-035>038-057-059-094-052100-
/O.NEW.KLBF.WW.Y.0004.210206T0400Z-210206T1500Z/
Eastern Cherry-Brown-Rock-Holt-Grant-Hooker-Thomas-Blaine-Loup-
Garfield-Wheeler-Arthur-McPherson-Logan-Custer-Keith-Lincoln-
Western Cherry-
Including the cities of Valentine, Ainsworth, Bassett, Rose, 
Oneill, Atkinson, Hyannis, Mullen, Thedford, Halsey, Dunning, 
Purdum, Brewster, Taylor, Burwell, Bartlett, Ericson, Arthur, 
Tryon, Ringgold, Stapleton, Broken Bow, Ogallala, Paxton, 
North Platte, Cody, Eli, Merriman, and Kilgore
325 AM CST Fri Feb 5 2021 /225 AM MST Fri Feb 5 2021/

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM CST /9 PM MST/
THIS EVENING TO 9 AM CST /8 AM MST/ SATURDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 4 inches.
  Locally higher amounts around 5 inches possible.

* WHERE...Portions of central, north central, southwest and west 
  central Nebraska.

* WHEN...From 10 PM CST /9 PM MST/ this evening to 9 AM CST /8 
  AM MST/ Saturday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Wind chills values from 5 to 10 below
  Saturday morning across north central Nebraska. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Call Nebraska 511 for the latest road information.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/lbf
7 follow-up statements
609 
WWUS43 KLBF 052038
WSWLBF

URGENT - WINTER WEATHER MESSAGE
National Weather Service North Platte NE
238 PM CST Fri Feb 5 2021

...WINTER WEATHER EXPECTED ACROSS MUCH OF WESTERN AND NORTH CENTRAL
NEBRASKA TONIGHT INTO SATURDAY...

NEZ038-061000-
/O.UPG.KLBF.WW.Y.0004.210206T0400Z-210206T1500Z/
/O.NEW.KLBF.WS.W.0002.210206T0400Z-210206T1500Z/
Custer-
Including the city of Broken Bow
238 PM CST Fri Feb 5 2021

...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 9 AM
CST SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 7
  with locally higher amounts possible.

* WHERE...Custer County.

* WHEN...From 10 PM this evening to 9 AM CST Saturday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Wind chill values of 5 to 10 below zero are
  expected Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Call Nebraska 511 for the latest road information.

&&

$$

NEZ005-008>010-023>029-035>037-057-059-094-061000-
/O.CON.KLBF.WW.Y.0004.210206T0400Z-210206T1500Z/
Eastern Cherry-Brown-Rock-Holt-Grant-Hooker-Thomas-Blaine-Loup-
Garfield-Wheeler-Arthur-McPherson-Logan-Keith-Lincoln-
Western Cherry-
Including the cities of Valentine, Ainsworth, Bassett, Rose, 
Oneill, Atkinson, Hyannis, Mullen, Thedford, Halsey, Dunning, 
Purdum, Brewster, Taylor, Burwell, Bartlett, Ericson, Arthur, 
Tryon, Ringgold, Stapleton, Ogallala, Paxton, North Platte, Cody,
Eli, Merriman, and Kilgore
238 PM CST Fri Feb 5 2021 /138 PM MST Fri Feb 5 2021/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM CST /9 PM
MST/ THIS EVENING TO 9 AM CST /8 AM MST/ SATURDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 5 
  inches.

* WHERE...Portions of north central, southwest and west central 
  Nebraska.

* WHEN...From 10 PM CST /9 PM MST/ this evening to 9 AM CST /8 
  AM MST/ Saturday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Wind chill values from 5 to 15 below zero
  Saturday morning, the coldest across north central Nebraska.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Call Nebraska 511 for the latest road information.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/lbf
896 
WWUS43 KLBF 060405 AAA
WSWLBF

URGENT - WINTER WEATHER MESSAGE...UPDATED
National Weather Service North Platte NE
1005 PM CST Fri Feb 5 2021

...WINTER WEATHER EXPECTED ACROSS MUCH OF WESTERN AND NORTH
CENTRAL NEBRASKA TONIGHT INTO SATURDAY...

NEZ038-061500-
/O.CON.KLBF.WS.W.0002.000000T0000Z-210206T1500Z/
Custer-
Including the city of Broken Bow
1005 PM CST Fri Feb 5 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 7 
  with locally higher amounts possible.

* WHERE...Custer County.

* WHEN...From 10 PM this evening to 9 AM CST Saturday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Wind chill values of 5 to 10 below zero are
  expected Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Call Nebraska 511 for the latest road information.

&&

$$

NEZ004-022-056-061500-
/O.EXA.KLBF.WW.Y.0004.210206T0400Z-210206T1500Z/
Sheridan-Garden-Deuel-
Including the cities of Gordon, Rushville, Oshkosh, Lewellen, 
Chappell, and Big Springs
905 PM MST Fri Feb 5 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM MST SATURDAY...

* WHAT...Snow is expected with total snow accumulations of two to
  three inches.

* WHERE...Sheridan, Garden and Deuel Counties.

* WHEN...From 10 PM CST /9 PM MST/ this evening to 9 AM CST /8 
  AM MST/ Saturday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Wind chill values of zero to 5 below zero 
  are expected Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Call Nebraska 511 for the latest road information.

&&

$$

NEZ005-008>010-023>029-035>037-057-059-094-061500-
/O.CON.KLBF.WW.Y.0004.000000T0000Z-210206T1500Z/
Eastern Cherry-Brown-Rock-Holt-Grant-Hooker-Thomas-Blaine-Loup-
Garfield-Wheeler-Arthur-McPherson-Logan-Keith-Lincoln-
Western Cherry-
Including the cities of Valentine, Ainsworth, Bassett, Rose, 
Oneill, Atkinson, Hyannis, Mullen, Thedford, Halsey, Dunning, 
Purdum, Brewster, Taylor, Burwell, Bartlett, Ericson, Arthur, 
Tryon, Ringgold, Stapleton, Ogallala, Paxton, North Platte, Cody,
Eli, Merriman, and Kilgore
1005 PM CST Fri Feb 5 2021 /905 PM MST Fri Feb 5 2021/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST /8 AM
MST/ SATURDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 5 
  inches.

* WHERE...Portions of north central, southwest and west central 
  Nebraska.

* WHEN...From 10 PM CST /9 PM MST/ this evening to 9 AM CST /8 
  AM MST/ Saturday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Wind chill values of zero to 10 below zero
  are expected Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Call Nebraska 511 for the latest road information.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/lbf
820 
WWUS43 KLBF 060444 AAB
WSWLBF

URGENT - WINTER WEATHER MESSAGE...UPDATED
National Weather Service North Platte NE
1044 PM CST Fri Feb 5 2021

...WINTER WEATHER EXPECTED ACROSS MUCH OF WESTERN AND NORTH
CENTRAL NEBRASKA TONIGHT INTO SATURDAY...

NEZ024-025-036-037-061500-
/O.UPG.KLBF.WW.Y.0004.000000T0000Z-210206T1500Z/
/O.EXA.KLBF.WS.W.0002.000000T0000Z-210206T1500Z/
Hooker-Thomas-McPherson-Logan-
Including the cities of Mullen, Thedford, Halsey, Tryon, 
Ringgold, and Stapleton
1044 PM CST Fri Feb 5 2021 /944 PM MST Fri Feb 5 2021/

...WINTER STORM WARNING IN EFFECT UNTIL 9 AM CST /8 AM MST/
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 7 
  inches.

* WHERE...Hooker, Thomas, McPherson and Logan Counties.

* WHEN...Until 9 AM CST /8 AM MST/ Saturday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Wind chill values of zero to 10 below 
  zero are expected Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Call Nebraska 511 for the latest road information.

&&

$$

NEZ038-061500-
/O.CON.KLBF.WS.W.0002.000000T0000Z-210206T1500Z/
Custer-
Including the city of Broken Bow
1044 PM CST Fri Feb 5 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 7 
  with locally higher amounts possible.

* WHERE...Custer County.

* WHEN...From 10 PM this evening to 9 AM CST Saturday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Wind chill values of 5 to 10 below zero 
  are expected Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Call Nebraska 511 for the latest road information.

&&

$$

NEZ005-008>010-023-026>029-035-057-059-094-061500-
/O.CON.KLBF.WW.Y.0004.000000T0000Z-210206T1500Z/
Eastern Cherry-Brown-Rock-Holt-Grant-Blaine-Loup-Garfield-Wheeler-
Arthur-Keith-Lincoln-Western Cherry-
Including the cities of Valentine, Ainsworth, Bassett, Rose, 
Oneill, Atkinson, Hyannis, Dunning, Purdum, Brewster, Taylor, 
Burwell, Bartlett, Ericson, Arthur, Ogallala, Paxton, 
North Platte, Cody, Eli, Merriman, and Kilgore
1044 PM CST Fri Feb 5 2021 /944 PM MST Fri Feb 5 2021/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST /8 AM
MST/ SATURDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 5 
  inches.

* WHERE...Portions of north central, southwest and west central 
  Nebraska.

* WHEN...From 10 PM CST /9 PM MST/ this evening to 9 AM CST /8 
  AM MST/ Saturday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Wind chill values of zero to 10 below 
  zero are expected Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Call Nebraska 511 for the latest road information.

&&

$$

NEZ004-022-056-061500-
/O.CON.KLBF.WW.Y.0004.000000T0000Z-210206T1500Z/
Sheridan-Garden-Deuel-
Including the cities of Gordon, Rushville, Oshkosh, Lewellen, 
Chappell, and Big Springs
944 PM MST Fri Feb 5 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST
SATURDAY...

* WHAT...Snow is expected with total snow accumulations of two 
  to three inches.

* WHERE...Sheridan, Garden and Deuel Counties.

* WHEN...From 10 PM CST /9 PM MST/ this evening to 9 AM CST /8 
  AM MST/ Saturday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Wind chill values of zero to 5 below zero 
  are expected Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Call Nebraska 511 for the latest road information.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/lbf
094 
WWUS43 KLBF 060912
WSWLBF

URGENT - WINTER WEATHER MESSAGE
National Weather Service North Platte NE
312 AM CST Sat Feb 6 2021

...WINTER WEATHER TO CONTINUE ACROSS MUCH OF WESTERN AND NORTH 
CENTRAL NEBRASKA THIS MORNING...

NEZ059-061500-
/O.UPG.KLBF.WW.Y.0004.000000T0000Z-210206T1500Z/
/O.EXA.KLBF.WS.W.0002.000000T0000Z-210206T1500Z/
Lincoln-
Including the city of North Platte
312 AM CST Sat Feb 6 2021

...WINTER STORM WARNING IN EFFECT UNTIL 9 AM CST THIS MORNING...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 3 
  inches. Storm total snowfall 3 to 7 inches. 

* WHERE...Lincoln County.

* WHEN...Until 9 AM CST this morning.

* 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. 

Call Nebraska 511 for the latest road information.

&&

$$

NEZ024-025-036>038-061500-
/O.CON.KLBF.WS.W.0002.000000T0000Z-210206T1500Z/
Hooker-Thomas-McPherson-Logan-Custer-
Including the cities of Mullen, Thedford, Halsey, Tryon, 
Ringgold, Stapleton, and Broken Bow
312 AM CST Sat Feb 6 2021 /212 AM MST Sat Feb 6 2021/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST /8 AM
MST/ THIS MORNING...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 3
  inches. Storm total snowfall 4 to 7 inches. 

* WHERE...Thomas, Hooker, Custer, McPherson and Logan Counties.

* WHEN...Until 9 AM CST /8 AM MST/ this morning.

* 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. 

Call Nebraska 511 for the latest road information.

&&

$$

NEZ005-008>010-023-026>029-035-057-094-061500-
/O.CON.KLBF.WW.Y.0004.000000T0000Z-210206T1500Z/
Eastern Cherry-Brown-Rock-Holt-Grant-Blaine-Loup-Garfield-Wheeler-
Arthur-Keith-Western Cherry-
Including the cities of Valentine, Ainsworth, Bassett, Rose, 
Oneill, Atkinson, Hyannis, Dunning, Purdum, Brewster, Taylor, 
Burwell, Bartlett, Ericson, Arthur, Ogallala, Paxton, Cody, Eli, 
Merriman, and Kilgore
312 AM CST Sat Feb 6 2021 /212 AM MST Sat Feb 6 2021/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST /8 AM
MST/ THIS MORNING...

* WHAT...Snow. Additional snow accumulations of up to two inches.
  Storm total snowfall 5 to 5 inches. 

* WHERE...Portions of north central, southwest and west central 
  Nebraska.

* WHEN...Until 9 AM CST /8 AM MST/ this morning.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Wind chill values of zero to 10 below zero
  are expected this morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Call Nebraska 511 for the latest road information.

&&


$$


Roberg
NEZ004-022-056-061500-
/O.CON.KLBF.WW.Y.0004.000000T0000Z-210206T1500Z/
Sheridan-Garden-Deuel-
Including the cities of Gordon, Rushville, Oshkosh, Lewellen, 
Chappell, and Big Springs
212 AM MST Sat Feb 6 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS
MORNING...

* WHAT...Snow. Additional snow accumulations of up to one inch.
  Storm total snowfall 2 to 3 inches. 

* WHERE...Deuel, Garden and Sheridan Counties.

* WHEN...Until 8 AM MST this morning.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Call Nebraska 511 for the latest road information.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/lbf
613 
WWUS43 KLBF 060920 CCA
WSWLBF

URGENT - WINTER WEATHER MESSAGE...CORRECTED
National Weather Service North Platte NE
320 AM CST Sat Feb 6 2021

...WINTER WEATHER TO CONTINUE ACROSS MUCH OF WESTERN AND NORTH 
CENTRAL NEBRASKA THIS MORNING...

NEZ059-061500-
/O.UPG.KLBF.WW.Y.0004.000000T0000Z-210206T1500Z/
/O.EXA.KLBF.WS.W.0002.000000T0000Z-210206T1500Z/
Lincoln-
Including the city of North Platte
320 AM CST Sat Feb 6 2021

...WINTER STORM WARNING IN EFFECT UNTIL 9 AM CST THIS MORNING...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 3 
  inches. Storm total snowfall 3 to 7 inches. 

* WHERE...Lincoln County.

* WHEN...Until 9 AM CST this morning.

* 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. 

Call Nebraska 511 for the latest road information.

&&

$$

NEZ024-025-036>038-061500-
/O.CON.KLBF.WS.W.0002.000000T0000Z-210206T1500Z/
Hooker-Thomas-McPherson-Logan-Custer-
Including the cities of Mullen, Thedford, Halsey, Tryon, 
Ringgold, Stapleton, and Broken Bow
320 AM CST Sat Feb 6 2021 /220 AM MST Sat Feb 6 2021/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST /8 AM
MST/ THIS MORNING...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 3
  inches. Storm total snowfall 4 to 7 inches. 

* WHERE...Thomas, Hooker, Custer, McPherson and Logan Counties.

* WHEN...Until 9 AM CST /8 AM MST/ this morning.

* 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. 

Call Nebraska 511 for the latest road information.

&&

$$

NEZ005-008>010-023-026>029-035-057-094-061500-
/O.COR.KLBF.WW.Y.0004.000000T0000Z-210206T1500Z/
Eastern Cherry-Brown-Rock-Holt-Grant-Blaine-Loup-Garfield-Wheeler-
Arthur-Keith-Western Cherry-
Including the cities of Valentine, Ainsworth, Bassett, Rose, 
Oneill, Atkinson, Hyannis, Dunning, Purdum, Brewster, Taylor, 
Burwell, Bartlett, Ericson, Arthur, Ogallala, Paxton, Cody, Eli, 
Merriman, and Kilgore
320 AM CST Sat Feb 6 2021 /220 AM MST Sat Feb 6 2021/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST /8 AM
MST/ THIS MORNING...

* WHAT...Snow. Additional snow accumulations of up to 2 inches.
  Storm total snowfall 3 to 5 inches. 

* WHERE...Portions of north central, southwest and west central 
  Nebraska.

* WHEN...Until 9 AM CST /8 AM MST/ this morning.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Wind chill values of zero to 10 below zero
  are expected this morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Call Nebraska 511 for the latest road information.

&&

$$

NEZ004-022-056-061500-
/O.CON.KLBF.WW.Y.0004.000000T0000Z-210206T1500Z/
Sheridan-Garden-Deuel-
Including the cities of Gordon, Rushville, Oshkosh, Lewellen, 
Chappell, and Big Springs
220 AM MST Sat Feb 6 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS
MORNING...

* WHAT...Snow. Additional snow accumulations of up to one inch.
  Storm total snowfall 2 to 3 inches. 

* WHERE...Deuel, Garden and Sheridan Counties.

* WHEN...Until 8 AM MST this morning.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Call Nebraska 511 for the latest road information.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/lbf
015 
WWUS43 KLBF 061459
WSWLBF

URGENT - WINTER WEATHER MESSAGE
National Weather Service North Platte NE
859 AM CST Sat Feb 6 2021

NEZ024-025-036>038-059-061800-
/O.EXT.KLBF.WS.W.0002.000000T0000Z-210206T1800Z/
Hooker-Thomas-McPherson-Logan-Custer-Lincoln-
Including the cities of Mullen, Thedford, Halsey, Tryon, 
Ringgold, Stapleton, Broken Bow, and North Platte
859 AM CST Sat Feb 6 2021 /759 AM MST Sat Feb 6 2021/

...WINTER STORM WARNING NOW IN EFFECT UNTIL NOON CST /11 AM MST/
TODAY...

* WHAT...Additional snow accumulations of up to one inch.

* WHERE...Portions of north central, southwest and west central 
  Nebraska.

* WHEN...Until noon CST /11 AM MST/ today.

* IMPACTS...Plan on hazardous road conditions and reduced
  visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Call Nebraska 511 for the latest road information.

&&

$$

NEZ005-008>010-023-026>029-035-057-094-061800-
/O.EXT.KLBF.WW.Y.0004.000000T0000Z-210206T1800Z/
Eastern Cherry-Brown-Rock-Holt-Grant-Blaine-Loup-Garfield-Wheeler-
Arthur-Keith-Western Cherry-
Including the cities of Valentine, Ainsworth, Bassett, Rose, 
Oneill, Atkinson, Hyannis, Dunning, Purdum, Brewster, Taylor, 
Burwell, Bartlett, Ericson, Arthur, Ogallala, Paxton, Cody, Eli, 
Merriman, and Kilgore
859 AM CST Sat Feb 6 2021 /759 AM MST Sat Feb 6 2021/

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON CST /11 AM
MST/ TODAY...

* WHAT...Additional snow accumulations of up to one inch.

* WHERE...Portions of north central, southwest and west central 
  Nebraska.

* WHEN...Until noon CST /11 AM MST/ today.

* IMPACTS...Plan on hazardous road conditions and reduced
  visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Call Nebraska 511 for the latest road information.

&&

$$

NEZ004-022-056-061800-
/O.EXT.KLBF.WW.Y.0004.000000T0000Z-210206T1800Z/
Sheridan-Garden-Deuel-
Including the cities of Gordon, Rushville, Oshkosh, Lewellen, 
Chappell, and Big Springs
759 AM MST Sat Feb 6 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 AM MST THIS
MORNING...

* WHAT...Additional snow accumulations of up to one inch.

* WHERE...Deuel, Garden and Sheridan Counties.

* WHEN...Until 11 AM MST this morning.

* IMPACTS...Plan on hazardous road conditions and reduced
  visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Call Nebraska 511 for the latest road information.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/lbf
987 
WWUS43 KLBF 061804
WSWLBF

URGENT - WINTER WEATHER MESSAGE
National Weather Service North Platte NE
1204 PM CST Sat Feb 6 2021


NEZ024-025-036>038-059-061915-
/O.EXP.KLBF.WS.W.0002.000000T0000Z-210206T1800Z/
Hooker-Thomas-McPherson-Logan-Custer-Lincoln-
Including the cities of Mullen, Thedford, Halsey, Tryon, 
Ringgold, Stapleton, Broken Bow, and North Platte
1204 PM CST Sat Feb 6 2021 /1104 AM MST Sat Feb 6 2021/

...WINTER STORM WARNING HAS EXPIRED...

The accumulating snow has ended across west central Nebraska,
allowing the Winter Storm Warning to expire. However, scattered
snow showers will remain through early afternoon. 

$$

NEZ004-005-008>010-022-023-026>029-035-056-057-094-061915-
/O.EXP.KLBF.WW.Y.0004.000000T0000Z-210206T1800Z/
Sheridan-Eastern Cherry-Brown-Rock-Holt-Garden-Grant-Blaine-Loup-
Garfield-Wheeler-Arthur-Deuel-Keith-Western Cherry-
Including the cities of Gordon, Rushville, Valentine, Ainsworth, 
Bassett, Rose, Oneill, Atkinson, Oshkosh, Lewellen, Hyannis, 
Dunning, Purdum, Brewster, Taylor, Burwell, Bartlett, Ericson, 
Arthur, Chappell, Big Springs, Ogallala, Paxton, Cody, Eli, 
Merriman, and Kilgore
1204 PM CST Sat Feb 6 2021 /1104 AM MST Sat Feb 6 2021/

...WINTER WEATHER ADVISORY HAS EXPIRED...

The accumulating snow has ended across the region, allowing the
Winter Weather Advisory to expire. However, scattered snow showers
may continue through early afternoon.

$$

For more information from the National Weather Service visit
http://weather.gov/lbf

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 North Platte, NE wrote its last area forecast discussion before this winter weather advisory went out at Feb 4, 10:22 PM MST, 4 hours 3 minutes earlier.

Area forecast discussion, Feb 4, 10:22 PM MST, 4 hours 3 minutes before
Area Forecast Discussion...UPDATED
National Weather Service North Platte NE
1122 PM CST Thu Feb 4 2021

.UPDATE...
Issued at 910 PM CST Thu Feb 4 2021

A forecast update is in place for slightly warmer temperatures
overnight using the short term model blend plus bias correction.
Increasing cloudiness is underway and this should promote mixing
and allow surface winds to stay up. The modest surface winds and
increase in cloud cover should limit radiational cooling.

&&

.SHORT TERM...(This evening through Friday night)
Issued at 259 PM CST Thu Feb 4 2021

The primary forecast challenge centers on temperatures and the
threat for multiple periods of light snow through early next week.

Period begins with highly amplified flow as troughing that brought
us rain and snow overnight this morning quickly departs to the east
and mid-level ridging develops across the West Coast. A small plume
of drier air has worked into the area this afternoon which has
helped lead to dry conditions and clearing skies across much of the
region. Areas of cumulus are bubbling over the higher terrain over
western South Dakota through western Kansas. This is occurring in an
area of modest mid-level lapse rates and should diminish with loss
of daytime heating. Within the northwest mid-level flow will be a
couple pulses of energy. While moisture should increase slightly off
the surface, lift will remain weak. As a result, opted to remove the
flurries/light snow mention for the morning hours across the
Sandhills. Have overnight lows tonight falling into the teens and
low 20s across the area. High pressure will push a backdoor cool
front through the area during the day Friday. This will put a large
temperature gradient across the area with highs approaching the mid
40s for our far southwest zones while only reaching the mid 20s near
the Missouri River under partly to mostly cloudy skies across the
area. Heading into Friday evening, isentropic lift on the 285k
surface will increase as a weak surface low develops across
southeast Wyoming into northeast Colorado. Modest troughing aloft
will move through the area heading into early Saturday morning,
leading to increased forcing for ascent by way of warm-air advection
and fgen in the h85-h7 layer. This will lead to the area's first
real potential for accumulating snow. The GFS has been the biggest
proponent of this potential with a fairly impressive band of
frontogenesis passing through the area in the 00z-15z timeframe
Saturday. With precise QPF forecast in question, it's worth
mentioning the consensus between the NAM and GFS regarding potential
for liquid precipitation amounts to approach a quarter inch or
higher while the Euro lags behind. The current forecast more closely
aligns with the Euro solution, which limits amounts to around 0.15"
or less. W.r.t. ensemble guidance, this lines up with the EPS as well
but falls short of of the GEFS and SREF mean values. Individual SREF
members show tight clustering in two pockets...one around 0.05" and
one around 0.2". Given the magnitude of forcing advertised by the
NAM and GFS, I do believe this forecast is a bit conservative but
will leave to subsequent forecasts to adjust should guidance hone in
on higher or lower amounts after coordination with neighboring
offices. Given this, thinking snow amounts will peak around 1-2" of
light, fluffy snow, but this could increase with later forecasts.
Highs Saturday will fall across the board, with values in the low
teens across north central Nebraska to the low 30s in the far
southwest. Precipitation will end Saturday afternoon as fgen wanes
and the trough axis clears the area to the east.

.LONG TERM...(Saturday through Thursday)
Issued at 259 PM CST Thu Feb 4 2021

Beginning 00z Sunday. Period begins with northwest flow aloft
following the passage of the trough axis. The region will still
reside under the northern stream jet, and with that a few
disturbances will push through the area Sunday into Monday. The
first will pass through Saturday evening into Sunday morning. NWP
output is in fairly good agreement with a developing a northwest to
southeast oriented snowband across the Sandhills into central
Nebraska. This is largely tied to strong warm-air advection in the
vicinity of a weak warm front, coincident with weak mid-level
vorticity advection. Biggest question with respect to this round of
snow will be southward extent as moisture availability rapidly
decreases with southward extent. Utilizing the model blend has
increased PoPs slight with the introduction of the "Likely" category
across north central Nebraska. This lines up with a blend of the
EPS, GEFS, and SREF output but may be hedging a bit north of what
the deterministics solutions suggest. At this time, will leave PoPs
as they are as any changes would be minimal. Forcing for ascent will
rapidly diminish through the late morning on Sunday, therefore this
narrow band will quickly subside by midday. Initial thoughts are for
QPF in the a few hundredths on the fringes of the stronger forcing
to perhaps around a quarter of an inch underneath the
frontogenetical band. This would easily translate to upwards of 2-3"
of snow given the magnitude of cold air in place...highs ranging
from the low 30s in the far southwest to the single digits across
north central Nebraska.

A second quick moving disturbance will approach from the west late
Sunday into Monday. This system will likely have better upper-level
support across the local area but more limited moisture. This shows
up as greater discrepancies between the EPS and GEFS on
probabilities of 1" or greater snow with the EPS only advertising
30% while the GEFS shows probabilities as high as 60%. This is
likely due to the GFS being much stronger with the mid-level wave
and quicker with the approach of the upper-level jet. It is also
further north with the warm front. Either way, confidence in this
second round is much lower therefore the forecast is subject to
change until NWP guidance hones in on a better consensus. As high
pressure builds in once again towards the middle of the week, expect
to see temperatures well below normal and likely limited to single
digits to low 20s northeast to southwest each day Monday through
Thursday. Additional chances for precipitation will exist Tuesday
through Thursday, however, no one disturbance appears to be overly
significant so expect just low-end PoPs with light to perhaps
moderate snow at best.

Regarding the expected cold temperatures...with h85 temperatures
approaching anomalies of -10 to -20 degrees C through Valentine's
Day, expecting morning lows to fall near or below zero each morning.
Given air temperatures that cool, any wind the develops in the
morning will drive wind chill values into the negative teens and
potentially as low as the negative 20s, which would be wind chill
advisory criteria. Given general high pressure in place, limiting
factor each morning would be winds and how strong they manage to
get. At this time, not seeing any glaring signal of strong winds any
particular morning therefore any confidence of reaching criteria at
this time is fairly modest. Regardless, with air temperatures
falling below zero, prolonged exposure to these temperatures will be
enough to lead to issues therefore will plan to keep hitting the
messaging hard regarding this threat.

&&

.AVIATION...(For the 06Z TAFS through 06Z Friday night)
Issued at 1122 PM CST Thu Feb 4 2021

Areas of MVFR in isolated to scattered -SHSN and low ceilings
will spread through nrn Nebraska 10z-18z Friday.

VFR is generally expected throughout wrn and ncntl Nebraska 18z-
00z Friday.

MVFR/IFR in snow and low ceilings will begin spreading across wrn
Nebraska Friday evening...reaching highway 83 around 06z Friday
evening.

&&

.LBF WATCHES/WARNINGS/ADVISORIES...
None.
&&

UPDATE...CDC
SHORT TERM...NMJ
LONG TERM...NMJ
AVIATION...CDC
Hazardous weather outlook, Feb 4, 2:16 PM MST, 12 hours 9 minutes before
Hazardous Weather Outlook
National Weather Service North Platte NE
316 PM CST Thu Feb 4 2021

NEZ004>010-022>029-035>038-056>059-069>071-094-052130-
Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-
Grant-Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-
Logan-Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier-
Western Cherry-
316 PM CST Thu Feb 4 2021 /216 PM MST Thu Feb 4 2021/

This Hazardous Weather Outlook is for portions of western and
north central Nebraska.

.DAY ONE...TONIGHT.

No hazardous weather conditions are expected tonight.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

An arctic cold front will push into the region Friday night. Light
snow will be possible Friday night, and again Saturday night into
Sunday. Another round of snow is possible Sunday night into
Monday. At this time, snow accumulations are expected to be fairly
light, however, this could change as we head into the weekend.
Much colder temperatures are expected this weekend into next week
as the area will see its coldest temperatures so far this winter
season. Wind chills Monday morning, Tuesday morning and Wednesday
morning, will range from 10 below zero to as much as 25 below
zero.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

&&

Get your weather, hydrological, and climate information at
http://www.weather.gov/northplatte

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 5, 1:38 PM MSTWinter Storm WarningLBFCuster, Hooker, Lincoln, Logan, McPherson, Thomas21 hr

Nearby

Winter Weather Advisories in Nebraska, 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.