Alert archive / Nebraska / Blizzard Warnings in 2020

Blizzard Warning 1, NWS Hastings, NE

December 23, 202015 counties in Nebraska

NWS Hastings, NE issued this blizzard warning at Dec 23, 2020, 3:09 AM CST for 15 counties in Nebraska. It was in force for 15 hr. 5 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 23, 2020, 3:09 AM CST (09:09 UTC)
Expired
Dec 23, 2020, 6:00 PM CST
In force
15 hr
Issued by
NWS Hastings, NE

Counties Adams County, NE, Buffalo County, NE, Clay County, NE, Fillmore County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Howard County, NE, Kearney County, NE, Merrick County, NE, Nance County, NE, Polk County, NE, Sherman County, NE, Valley County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 75 km from the middle of the area, began a volume at 09:13 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.

What was reported inside it

TimeReportWhereRemark
Dec 23, 8:00 AM CSTSNOW 2Ord, NEREDUCED VISIBILITY FROM SNOW AND BLOWING SNOW.
Dec 23, 12:00 PM CSTSNOW 0.2Grand Island Airport, NEOFFICIAL SNOWFALL FOR 6 AM-12 PM OF 0.2. WATER EQUIVALENT OF 0.02 STORM TOTAL SNOWFALL SO FAR IS 0.6.
Dec 23, 12:00 PM CSTSNOW 0.64n Hastings, NEHASTINGS NWS OFFICE SNOWFALL 6AM-12PM IS 0.6. WATER EQUIVALENT OF 0.06. STORM TOTAL SNOWFALL IS 0.9.
Dec 23, 6:00 PM CSTSNOW 0.8Grand Island Airport, NEOFFICIAL STORM TOTAL SNOWFALL FOR GRAND ISLAND.
Dec 23, 6:00 PM CSTSNOW 1.14n Hastings, NEHASTINGS NWS OFFICE STORM TOTAL SNOWFALL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 9.2 hours before the alert went out and 168 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, Omaha, NE at 00:00Z on 2020-12-23Temperature 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, Omaha, NE at 00:00Z on 2020-12-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 582 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
2315 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
582 m²/s²
0-3 km storm-relative helicity
784 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

821 
WWUS43 KGID 230909
WSWGID

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hastings NE
309 AM CST Wed Dec 23 2020


NEZ039>041-232200-
/O.UPG.KGID.WW.Y.0021.000000T0000Z-201224T0000Z/
/O.NEW.KGID.BZ.W.0001.201223T0909Z-201224T0000Z/
Valley-Greeley-Nance-
Including the cities of Ord, Greeley, Spalding, Scotia, Wolbach, 
Fullerton, and Genoa
309 AM CST Wed Dec 23 2020

...BLIZZARD WARNING IN EFFECT UNTIL 6 PM CST THIS EVENING...

* WHAT...Blizzard conditions. Additional snow accumulations of 1 
  to 3 inches. Winds gusting as high as 60 mph.

* WHERE...Valley, Greeley and Nance Counties.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Dangerous travel expected. Plan on slippery road
  conditions. Blowing snow could significantly reduce visibility
  to a quarter mile or less at times. The hazardous conditions
  could impact the morning or evening commute. Strong winds could
  cause tree damage and isolated power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

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

&&

$$

NEZ060>064-073>077-232200-
/O.EXA.KGID.WW.Y.0021.000000T0000Z-201224T0000Z/
Dawson-Buffalo-Hall-Hamilton-York-Phelps-Kearney-Adams-Clay-
Fillmore-
Including the cities of Lexington, Cozad, Willow Island, 
Gothenburg, Kearney, Grand Island, Aurora, York, Holdrege, 
Minden, Hastings, Sutton, Harvard, Clay Center, Edgar, Fairfield,
Geneva, Exeter, and Fairmont
309 AM CST Wed Dec 23 2020

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Snow. Additional snow accumulations of up to two inches
  with isolated higher amounts possible. Winds gusting up to 50 to
  60 mph will likely reduce visibility in blowing snow and cause
  some travel issues. 

* WHERE...Portions of east central and south central Nebraska,
  including the Interstate 80 corridor.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute. Strong 
  winds could cause tree damage and isolated power outages.


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.

&&

$$

NEZ046>049-232200-
/O.CON.KGID.WW.Y.0021.000000T0000Z-201224T0000Z/
Sherman-Howard-Merrick-Polk-
Including the cities of Loup City, Sherman Reservoir, Litchfield,
St. Libory, Central City, Stromsburg, Osceola, Shelby, and Polk
309 AM CST Wed Dec 23 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Snow. Additional snow accumulations of up to two inches
  with locally higher amounts possible. Winds gusting as high as
  60 mph could reduce visibility in blowing snow and cause some
  travel issues.

* WHERE...Howard, Sherman, Polk and Merrick Counties.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Plan on slippery road conditions. Patchy blowing snow
  could significantly reduce visibility. The hazardous conditions
  could impact the morning or evening commute. Strong winds could
  cause tree damage and isolated power outages. 

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.

&&

$$

Billings Wright
5 follow-up statements
893 
WWUS43 KGID 231459
WSWGID

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hastings NE
859 AM CST Wed Dec 23 2020

...Snow and Very Strong Winds Will Combine To Produce Near-
Blizzard To Blizzard Conditions Today...

NEZ046>049-232300-
/O.UPG.KGID.WW.Y.0021.000000T0000Z-201224T0000Z/
/O.EXA.KGID.BZ.W.0001.000000T0000Z-201224T0000Z/
Sherman-Howard-Merrick-Polk-
Including the cities of Loup City, Sherman Reservoir, Litchfield,
St. Libory, Central City, Stromsburg, Osceola, Shelby, and Polk
859 AM CST Wed Dec 23 2020

...BLIZZARD WARNING IN EFFECT UNTIL 6 PM CST THIS EVENING...

* WHAT...Blizzard conditions. Additional daytime snow
  accumulations generally 1 to 3 inches. Northwest winds gusting as
  high as 60 mph.

* WHERE...Sherman, Howard, Merrick and Polk Counties.

* WHEN...Until 6 PM CST this evening, although snow will likely
  end in much of the area a bit earlier than this. 

* IMPACTS...Dangerous travel expected. Plan on slippery road
  conditions. Blowing snow could significantly reduce visibility
  to a quarter mile or less at times, causing white-out
  conditions. Strong winds could cause tree damage and isolated
  power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

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

&&

$$

NEZ039>041-232300-
/O.CON.KGID.BZ.W.0001.000000T0000Z-201224T0000Z/
Valley-Greeley-Nance-
Including the cities of Ord, Greeley, Spalding, Scotia, Wolbach, 
Fullerton, and Genoa
859 AM CST Wed Dec 23 2020

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Blizzard conditions. Additional daytime snow
  accumulations generally 2 to 3 inches. Northwest winds gusting 
  as high as 60 mph.

* WHERE...Valley, Greeley and Nance Counties.

* WHEN...Until 6 PM CST this evening, although snow will likely
  end in much of the area a bit earlier than this. 

* IMPACTS...Dangerous travel expected. Plan on slippery road
  conditions. Blowing snow could significantly reduce visibility
  to a quarter mile or less at times, causing white-out
  conditions. Strong winds could cause tree damage and isolated
  power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

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

&&

$$

NEZ060>064-073>077-232300-
/O.CON.KGID.WW.Y.0021.000000T0000Z-201224T0000Z/
Dawson-Buffalo-Hall-Hamilton-York-Phelps-Kearney-Adams-Clay-
Fillmore-
Including the cities of Lexington, Cozad, Willow Island, 
Gothenburg, Kearney, Grand Island, Aurora, York, Holdrege, 
Minden, Hastings, Sutton, Harvard, Clay Center, Edgar, Fairfield,
Geneva, Exeter, and Fairmont
859 AM CST Wed Dec 23 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Snow. Additional daytime snow accumulations of generally
  1 to 2 inches possible. Northwest winds gusting up to 60 mph
  will reduce visibility in blowing snow and cause near-blizzard
  conditions at times. 

* WHERE...Portions of east central and south central Nebraska,
  including the Interstate 80 corridor and the Tri Cities. 

* WHEN...Until 6 PM CST this evening, although snow will likely
  end in much of the area a bit earlier than this.  

* IMPACTS...Plan on slippery road conditions. Patchy blowing snow
  could significantly reduce visibility, with occasional white-out
  conditions. Strong winds could cause tree damage and isolated 
  power outages.

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.

&&

$$

Pfannkuch
613 
WWUS43 KGID 231552
WSWGID

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hastings NE
952 AM CST Wed Dec 23 2020

...Snow and Very Strong Winds Will Combine To Produce Near-
Blizzard To Blizzard Conditions Today...

NEZ039>041-046>049-240000-
/O.CON.KGID.BZ.W.0001.000000T0000Z-201224T0000Z/
Valley-Greeley-Nance-Sherman-Howard-Merrick-Polk-
Including the cities of Ord, Greeley, Spalding, Scotia, Wolbach, 
Fullerton, Genoa, Loup City, Sherman Reservoir, Litchfield, 
St. Libory, Central City, Stromsburg, Osceola, Shelby, and Polk
952 AM CST Wed Dec 23 2020

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Blizzard conditions. Storm total snow accumulations
  generally 1 to 4 inches, with the highest amounts favoring the
  Ord and Greeley areas. Northwest winds gusting as high as 50 to
  60 MPH. 

* WHERE...Valley, Greeley, Nance, Sherman, Howard, Merrick and
  Polk counties. 

* WHEN...Until 6 PM CST this evening, although snow will likely 
  end in much of the area a bit earlier than this.

* IMPACTS...Dangerous travel expected. Plan on slippery road
  conditions. Blowing snow could significantly reduce visibility
  to a quarter mile or less at times, causing white-out
  conditions. Strong winds could cause tree damage and isolated
  power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

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

&&

$$

NEZ060>064-073>077-240000-
/O.CON.KGID.WW.Y.0021.000000T0000Z-201224T0000Z/
Dawson-Buffalo-Hall-Hamilton-York-Phelps-Kearney-Adams-Clay-
Fillmore-
Including the cities of Lexington, Cozad, Willow Island, 
Gothenburg, Kearney, Grand Island, Aurora, York, Holdrege, 
Minden, Hastings, Sutton, Harvard, Clay Center, Edgar, Fairfield,
Geneva, Exeter, and Fairmont
952 AM CST Wed Dec 23 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Snow. Storm total snow accumulations generally 1 to 3
  inches, with the highest amounts favoring the Lexington, Kearney
  and Grand Island areas. Northwest winds gusting as high as 50 to
  60 MPH will reduce visibility in blowing snow and cause near- 
  blizzard conditions at times.

* WHERE...Portions of east central and south central Nebraska, 
  including the Interstate 80 corridor and the Tri Cities.

* WHEN...Until 6 PM CST this evening, although snow will likely 
  end in much of the area a bit earlier than this.

* IMPACTS...Plan on slippery road conditions. Patchy blowing snow
  could significantly reduce visibility, with occasional white-out
  conditions. Strong winds could cause tree damage and isolated
  power outages.

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.

&&

$$

Pfannkuch
612 
WWUS43 KGID 231943
WSWGID

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hastings NE
143 PM CST Wed Dec 23 2020

...Snow and Very Strong Winds Will Combine To Produce Near-
Blizzard To Blizzard Conditions Today...

NEZ061>064-074>077-240000-
/O.UPG.KGID.WW.Y.0021.000000T0000Z-201224T0000Z/
/O.EXA.KGID.BZ.W.0001.000000T0000Z-201224T0000Z/
Buffalo-Hall-Hamilton-York-Kearney-Adams-Clay-Fillmore-
Including the cities of Kearney, Grand Island, Aurora, York, 
Minden, Hastings, Sutton, Harvard, Clay Center, Edgar, Fairfield,
Geneva, Exeter, and Fairmont
143 PM CST Wed Dec 23 2020

...BLIZZARD WARNING IN EFFECT UNTIL 6 PM CST THIS EVENING...

* WHAT...Blizzard conditions. Additional snow accumulations of up
  to one inch. Northwest winds gusting as high as 50 to 60 mph.

* WHERE...Portions of east central and south central Nebraska,
  including the Interstate 80 corridor from Kearney to York.  

* WHEN...Until 6 PM CST this evening, although snow and blizzard
  conditions will likely end in parts of the area before this. 

* IMPACTS...Dangerous travel expected. Plan on slippery road
  conditions. Blowing snow could significantly reduce visibility
  to a quarter mile or less at times, causing white-out
  conditions. Strong winds could cause tree damage and isolated
  power outages.

* ADDITIONAL DETAILS...Blizzard conditions have been and will
  continue to be more persistent in this area than earlier
  expected, prompting this upgrade to a Blizzard Warning. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

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

&&

$$

NEZ039>041-046>049-240000-
/O.CON.KGID.BZ.W.0001.000000T0000Z-201224T0000Z/
Valley-Greeley-Nance-Sherman-Howard-Merrick-Polk-
Including the cities of Ord, Greeley, Spalding, Scotia, Wolbach, 
Fullerton, Genoa, Loup City, Sherman Reservoir, Litchfield, 
St. Libory, Central City, Stromsburg, Osceola, Shelby, and Polk
143 PM CST Wed Dec 23 2020

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Blizzard conditions. Additional snow accumulations of up
  to one inch. Northwest winds gusting as high as 50 to 60 mph.

* WHERE...Valley, Greeley, Nance, Sherman, Howard, Merrick and 
  Polk counties.

* WHEN...Until 6 PM CST this evening, although snow and blizzard
  conditions will likely end in parts of the area before this. 

* IMPACTS...Dangerous travel expected. Plan on slippery road
  conditions. Blowing snow could significantly reduce visibility
  to a quarter mile or less at times, causing white-out
  conditions. Strong winds could cause tree damage and isolated
  power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

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

&&

$$

NEZ060-073-240000-
/O.CON.KGID.WW.Y.0021.000000T0000Z-201224T0000Z/
Dawson-Phelps-
Including the cities of Lexington, Cozad, Willow Island, 
Gothenburg, and Holdrege
143 PM CST Wed Dec 23 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Snow. Additional snow accumulations mainly less than one-
  half inch. Northwest winds gusting as high as 50 to 60 MPH will
  reduce visibility in blowing snow and cause near-blizzard 
  conditions at times.

* WHERE...Dawson and Phelps counties. 

* WHEN...Until 6 PM CST this evening, although snow is already in
  the process of ending in these counties over the next few hours. 

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility, with occasional 
  white-out conditions. Strong winds could cause tree damage and 
  isolated power outages.

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.

&&

$$

Pfannkuch
770 
WWUS43 KGID 232134
WSWGID

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hastings NE
334 PM CST Wed Dec 23 2020

...Near-Blizzard To Blizzard Conditions Gradually Ending Over the
Next Few Hours...

NEZ039>041-046>049-061>064-074>077-240000-
/O.CON.KGID.BZ.W.0001.000000T0000Z-201224T0000Z/
Valley-Greeley-Nance-Sherman-Howard-Merrick-Polk-Buffalo-Hall-
Hamilton-York-Kearney-Adams-Clay-Fillmore-
Including the cities of Ord, Greeley, Spalding, Scotia, Wolbach, 
Fullerton, Genoa, Loup City, Sherman Reservoir, Litchfield, 
St. Libory, Central City, Stromsburg, Osceola, Shelby, Polk, 
Kearney, Grand Island, Aurora, York, Minden, Hastings, Sutton, 
Harvard, Clay Center, Edgar, Fairfield, Geneva, Exeter, 
and Fairmont
334 PM CST Wed Dec 23 2020

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Blizzard conditions. Additional snow accumulations of
  less than one-half inch. Northwest winds gusting as high as 50 
  to 60 mph.

* WHERE...Portions of central, south central and east central
  Nebraska, including the Tri Cities. 

* WHEN...Until 6 PM CST this evening, although actual falling snow
  is already ending from west-to-east across the Warning area. 

* IMPACTS...Dangerous travel expected. Plan on slippery road 
  conditions. Blowing snow could significantly reduce visibility 
  to a quarter mile or less at times, causing white-out 
  conditions. Strong winds could cause tree damage and isolated 
  power outages.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

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

&&

$$

NEZ060-073-240000-
/O.CON.KGID.WW.Y.0021.000000T0000Z-201224T0000Z/
Dawson-Phelps-
Including the cities of Lexington, Cozad, Willow Island, 
Gothenburg, and Holdrege
334 PM CST Wed Dec 23 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Snow. Additional snow accumulations mainly less than one-
  half inch. Northwest winds gusting as high as 50 to 60 MPH will
  reduce visibility in blowing snow and could cause near-blizzard
  conditions at times.

* WHERE...Dawson and Phelps counties.

* WHEN...Until 6 PM CST this evening, although actual falling snow
  has mostly already ended in these counties. 

* IMPACTS...Plan on slippery road conditions. Patchy blowing snow
  could significantly reduce visibility, with occasional white-out
  conditions. Strong winds could cause tree damage and isolated
  power outages.

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.

&&

$$

Pfannkuch
035 
WWUS43 KGID 232353
WSWGID

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hastings NE
553 PM CST Wed Dec 23 2020

NEZ039>041-046>049-061>064-074>077-240100-
/O.EXP.KGID.BZ.W.0001.000000T0000Z-201224T0000Z/
Valley-Greeley-Nance-Sherman-Howard-Merrick-Polk-Buffalo-Hall-
Hamilton-York-Kearney-Adams-Clay-Fillmore-
Including the cities of Ord, Greeley, Spalding, Scotia, Wolbach, 
Fullerton, Genoa, Loup City, Sherman Reservoir, Litchfield, 
St. Libory, Central City, Stromsburg, Osceola, Shelby, Polk, 
Kearney, Grand Island, Aurora, York, Minden, Hastings, Sutton, 
Harvard, Clay Center, Edgar, Fairfield, Geneva, Exeter, 
and Fairmont
553 PM CST Wed Dec 23 2020

...BLIZZARD WARNING WILL EXPIRE AT 6 PM CST THIS EVENING...

Accumulating snowfall has ended across the area. While patchy
blowing snow will remain a possibility this evening, area 
automated observation sites and webcams show improving 
visibilities, a trend that will continue through the evening 
hours, so the Blizzard Warning will be allowed to expire.

$$

NEZ060-073-240100-
/O.EXP.KGID.WW.Y.0021.000000T0000Z-201224T0000Z/
Dawson-Phelps-
Including the cities of Lexington, Cozad, Willow Island, 
Gothenburg, and Holdrege
553 PM CST Wed Dec 23 2020

...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM CST THIS EVENING...

Accumulating snowfall has ended across the area. While patchy
blowing snow will remain a possibility this evening, area 
automated observation sites and webcams show improving 
visibilities, a trend that will continue through the evening 
hours, so the Winter Weather Advisory will be allowed to expire.

$$

What forecasters said that day

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

NWS Hastings, NE wrote its last area forecast discussion before this blizzard warning went out at Dec 22, 11:50 PM CST, 3 hours 19 minutes earlier.

Area forecast discussion, Dec 22, 11:50 PM CST, 3 hours 19 minutes before
AREA FORECAST DISCUSSION
National Weather Service Hastings NE
1150 PM CST Tue Dec 22 2020

.DISCUSSION...(This evening through Tuesday)
Issued at 440 PM CST Tue Dec 22 2020

Highlights/main points of the entire 7-day forecast:

- By FAR the main focus/time on this forecast shift was spent on
  the very first 24-30 hours, which will feature a blast of strong
  northwest winds area-wide (high confidence) and for especially
  Nebraska portions of our coverage area (CWA) a good chance of at
  least light snow accumulations, with areas north of I-80
  currently favored for amounts as high as 1-2" (medium-
  confidence). As a result, a combination of a High Wind Warning
  (CWA-wide starting either at midnight/6AM) and a Winter Weather
  Advisory for Nebraska counties north of Interstate 80 (starting
  at midnight) was issued this afternoon.

- More on this below, but easily the biggest
  uncertainty/dilemma/point of concern at this time is whether we
  are hitting the snow potential hard enough for late tonight into
  Wednesday daytime. While both snow chances (PoPs) and amounts
  themselves were raised modestly from previous forecast
  (especially north of I-80), a few recent models (including 12Z
  ECMWF/18Z NAM) suggest our snow amounts might need to be raised
  a bit more. Stay tuned for at least minor (perhaps somewhat
  noticeable?) tweaks to snow amounts from the upcoming evening-
  overnight shifts.

- With so much focus on the first 24-30 hours of the forecast,
  will gladly state that the vast majority of the remainder of the
  7-day forecast (Wednesday evening through next Monday) currently
  carries fairly high confidence in remaining dry and fairly quiet
  weather-wise. Following our brief blast of noticeably-colder
  temperatures Wednesday (highs only in the 20s to low 30s and
  perhaps falling further during the day), a gradual moderation
  will start to get underway on Thursday (Christmas) with highs
  20s northeast to around 40 southwest, then followed by the
  overall-warmest days of the next week on Friday-Saturday with
  widespread highs in the 40s-low 50s. This warm-up is short-lived
  however as colder air returns for Sunday-Tuesday with highs
  currently only aimed 30s to low 40s Sunday, then only low-mid
  30s at best Monday-Tuesday.

- Although it is way at the end of the official 7-day forecast
  (and mostly beyond), fans of longer-term forecasts will note the
  POSSIBILITY of a potentially-significant winter storm that is
  showing very early/preliminary signs of affecting our general
  Central Plains region during the Tues-Thurs time frame next
  week. Although this will obviously bear watching in the coming
  days, anybody reading this knows darn well that it is FAR too
  soon to put much stock in the details of this system. For now,
  our forecast merely reflects "innocent" low chances for snow
  starting next Tuesday.

Taking a quick look/recap of the current/recent weather scene as
of 4 PM: No big surprises to speak of at all, as indeed today has
panned out to be the anticipated warmest day of the week, as
mostly sunny skies (although filtered this afternoon by passing
high cirrus) combined with steady south winds (generally sustained
15-20+ MPH/gusts 25-35 MPH boosted afternoon high temps well into
the mid 50s to low 60s range across most of the CWA (and even some
spotty mid 60s mainly far southwest). In the mid-upper levels,
water vapor satellite and short term model data clearly reveal a
potent shortwave trough tracking directly toward our region from
the west-northwest, with the main vort max in the base of the
trough currently digging across southern WY. At the surface, the
gusty south winds today are focused out ahead of a north-south
oriented lee trough to our west, which currently registers around
995 millibars in the NE Panhandle.

With the main points of the 7-day forecast as a whole outlined
above, will now conclude with some details SOLELY FOCUSED on these
next 24-30 hours, and starting with some further background on
Warning/Advisory headlines:

- High Wind Warning:
In short, simply upgraded the inherited High Wind Watch for the
western CWA to a Warning (starting midnight) and then also
included the rest of the central/eastern CWA in a High Wind
Warning as well (starting 6 AM). Admittedly, confidence is not
overly-high that we will truly see widespread Warning criteria
(sustained speeds commonly 40+ MPH/gusts 58+ MPH), but with good
potential for several hours of sustained 30-40 MPH and at least
sporadic gusts to 50-55 MPH likely, felt that it was prudent to
"bridge the gap" between Warnings to our west and Advisories to
our east with a CWA-wide Warning. For sure, the initial surge of
strong northwest winds will arrive overnight from west-to-east,
and while this first surge could at least flirt with Warning-
criteria gusts (especially west) as stout pressure rises move in,
the overall-strongest winds of the event are expected to occur
during the day Wednesday before slowly-but-surely easing below
headline-criteria late Wednesday afternoon into the night.

- Winter Weather Advisory:
As touched on above, the snow situation (particularly exact
amounts) carries considerably-lower confidence than the wind
situation. Even at this close time range, models vary considerably
regarding how aggressively they phase low-mid level
lift/saturation, and thus snow potential. For sure, our official
forecast of generally 1-2" north of I-80, a dusting up to 1" along
the I-80/Hwy 6 corridors and only a dusting at best near/south of
the state line is a "middle ground" between the more
aggressive/benign model extremes. That being said, confidence that
at least SOME snow will fall between late tonight and early
Wednesday evening is increasing, and PoPs have been increased
(quite possibly not enough). Obviously with such strong winds, it
won't take much snow at all to reduce visibility to less than one
mile, and at least briefly/localized much lower, with yes even
near-blizzard conditions possible at times, but with expected
fairly brief duration due to this system being fairly progressive.
In the end, coordinated with neighboring LBF/OAX to get the ball
rolling with an official Advisory for those areas north of I-80
where confidence is highest in at least 1" of snow falling (not
that it will be easy to measure in the wind), but obviously at
least minor travel impacts could occur south of the current
Advisory as well (including I-80 corridor. In addition, there
COULD be a flash-freeze scenario late tonight into Wed AM
depending on how quickly temperatures fall and allow the initial
rain and/or rain-snow mix to freeze onto roads.

Other short term weather details...

This evening-tonight:
Both the upper level trough and strong/associated surface cold
front will enter/surge across our area late tonight, with the main
vort max directly over/very near our CWA at sunrise Wednesday. All
precip chances kick in post-midnight as precip type will likely
initially start out as rain showers briefly before fairly quickly
transitioning to snow/snow showers. Low temps are a little tricky
as the strong winds will initially keep things rather "mixed"
before the strong cold air advection arrives. Actual overnight
lows were nudged up slightly, ranging from low 20s northwest to
low 30s far south-southeast.

Wednesday daytime:
The fairly quick-moving/progressive upper trough passes directly
overhead, keeping areas of wind-whipped snow/snow showers going
throughout much of the day (especially in our northern CWA).
However, by sunset any falling snow should be gone/departed east
of our area. High temps are a bit misleading as they will likely
occur right away in the morning with steady-to-falling temps
possible thereafter. For sure, most areas can expect actual temps
in the 20s most of the day with wind chills only single digits-
teens.

Wednesday evening-night:
In the wake of the departing system, skies will largely clear and
winds will gradually decrease, although it will remain modestly-
breezy throughout the night with sustained speeds commonly 10-20
MPH and some higher gusts. Though these breezes will help keep
temps from falling to their full potential, still have most areas
bottoming out well down into the teens.

&&

.AVIATION...(For the 06Z KGRI/KEAR TAFS through 06Z Thursday)
Issued at 1150 PM CST Tue Dec 22 2020

A strong cold front is approaching the forecast area with strong
northwest winds. Upstream as the front passed gusts are 40kts or
higher. Expect this to impact both terminals. Also high-resolution
runs have indicated that precip will begin as rain and quickly
switch to snow this morning with more snow than originally
anticipated. This heavier snow and wind will cause reduced
visibilities. MVFR to IFR conditions are expected with some
potential for LIFR if snow is heavy enough. Snow will persist
throughout the day today with the winds to at a minimum off and on
IFR to LIFR conditions depending on the intensity of the snowfall
throughout the day. Winds and snow will eventually decrease
around 21-00z today.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...High Wind Warning from 6 AM to 6 PM CST Wednesday for NEZ040-041-
     047>049-062>064-075>077-085>087.

     High Wind Warning until 6 PM CST Wednesday for NEZ039-046-060-
     061-072>074-082>084.

     Winter Weather Advisory until 6 PM CST Wednesday for NEZ039>041-
     046>049.

KS...High Wind Warning from 6 AM to 6 PM CST Wednesday for KSZ006-007-
     018-019.

     High Wind Warning until 6 PM CST Wednesday for KSZ005-017.

&&

DISCUSSION...Pfannkuch
AVIATION...Billings Wright
Hazardous weather outlook, Dec 22, 3:53 PM CST, 11 hours 16 minutes before
Hazardous Weather Outlook
National Weather Service Hastings NE
353 PM CST Tue Dec 22 2020

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
231200-
Phillips-Smith-Jewell-Rooks-Osborne-Mitchell-Valley-Greeley-Nance-
Sherman-Howard-Merrick-Polk-Dawson-Buffalo-Hall-Hamilton-York-
Gosper-Phelps-Kearney-Adams-Clay-Fillmore-Furnas-Harlan-Franklin-
Webster-Nuckolls-Thayer-
353 PM CST Tue Dec 22 2020

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

.DAY ONE...Tonight.

Overnight, strong northwest winds will surge across the entire
outlook area behind a powerful cold front. A High Wind Warning is
in effect after midnight for all counties west of the Highway 281
corridor, where the overall-strongest overnight winds should
focus. Please refer to the Warning statement for more details.

In addition to strong winds, portions of the Nebraska outlook area
could pick up light snow accumulation between midnight and
sunrise. Although snow amounts through sunrise will likely be
less than 1 inch, a Winter Weather Advisory is in effect after
midnight for counties north of the Interstate 80 corridor. Please
refer to the Advisory statement for more details.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

During the day Wednesday, the entire outlook area will have very
strong northwest winds, and especially Nebraska portions of the
area will continue to see areas of at least light accumulating
snow. As a result, a High Wind Warning is in effect through 6 PM
for the entire outlook area, and a Winter Weather Advisory is in
effect through 6 PM for Nebraska counties north of Interstate 80,
which is the area that stands the best chance of seeing total snow
accumulation of at least 1 inch. Please refer to the High Wind
Warning and Winter Weather Advisory statements for more details.

Please note that even south of the official Winter Weather
Advisory area, at least minor travel issues due to the combination
of falling snow and strong winds could also affect Nebraska counties
along the Interstate 80 and Highway 6 corridors.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight, but any
reports of accumulating snow over 1 inch or possible wind damage
would be appreciated from late tonight into the day Wednesday.

&&

More information may be obtained at the following web page:
   https://www.weather.gov/hastings

Pfannkuch

In the hours before

Local storm report, Dec 23, 3:01 AM CST, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
301 AM CST WED DEC 23 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0156 AM     NON-TSTM WND GST 8 S KEARNEY             40.59N 99.09W
12/23/2020  M58 MPH          KEARNEY            NE   MESONET

            PERSONAL WEATHER STATION KNEAXTEL10.

&&

THIES

Nearby

Blizzard Warnings in Nebraska, 2020Every blizzard warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.