Alert archive / Nebraska / High Wind Warnings in 2020

High Wind Warning 2, NWS Omaha, NE

April 11, 20205 counties in Nebraska

NWS Omaha, NE issued this high wind warning at Apr 11, 2020, 3:14 PM CDT for 5 counties in Nebraska. It took effect at Apr 12, 2020, 10:00 AM CDT. It was in force for 10 hr. 6 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
Apr 11, 2020, 3:14 PM CDT (20:14 UTC)
In effect from
Apr 12, 2020, 10:00 AM CDT
Expired
Apr 12, 2020, 8:09 PM CDT
In force
10 hr
Issued by
NWS Omaha, NE

Counties Gage County, NE, Jefferson County, NE, Lancaster County, NE, Saline County, NE, Seward County, NE

The radar

The Omaha radar (KOAX), 102 km from the middle of the area, began a volume at 20:20 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
Apr 12, 2:09 PM CDTNON-TSTM WND GST 453 E Friend, NEMESONET STATION CW7409 FRIEND.
Apr 12, 4:19 PM CDTNON-TSTM WND GST 545 Wnw Lincoln, NEASOS STATION KLNK LINCOLN AIRPORT.
Apr 12, 5:45 PM CDTNON-TSTM WND GST 495 Ne Garland, NEMESONET STATION DW3452 RAYMOND.
Apr 12, 6:00 PM CDTNON-TSTM WND GST 502 Ese Beatrice, NEMESONET STATION FW0570 BEATRICE.
Apr 12, 6:15 PM CDTNON-TSTM WND GST 471 Nnw Beatrice, NEAWOS STATION KBIE BEATRICE MUNICIP.
Apr 12, 6:30 PM CDTNON-TSTM WND GST 462 Wsw Fairbury, NEMESONET STATION CW6705 FAIRBURY.

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 12:00Z, 8.2 hours before the alert went out and 101 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 12:00Z on 2020-04-11Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 12:00Z on 2020-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 231 square meters per square second.193958Sfc1 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
1749 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
231 m²/s²
0-3 km storm-relative helicity
390 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

725 
WWUS73 KOAX 112014
NPWOAX

URGENT - WEATHER MESSAGE
National Weather Service Omaha/Valley NE
314 PM CDT Sat Apr 11 2020

NEZ065-066-078-088-089-121100-
/O.UPG.KOAX.HW.A.0001.200412T1200Z-200413T0300Z/
/O.NEW.KOAX.HW.W.0002.200412T1500Z-200413T0300Z/
Seward-Lancaster-Saline-Jefferson-Gage-
Including the cities of Seward, Milford, Lincoln, Crete, Wilber, 
Fairbury, and Beatrice
314 PM CDT Sat Apr 11 2020

...HIGH WIND WARNING IN EFFECT FROM 10 AM TO 10 PM CDT SUNDAY...

* WHAT...North winds 30 to 40 mph with gusts up to 60 mph 
  expected.

* WHERE...Seward, Lancaster, Saline, Jefferson and Gage Counties.

* WHEN...From 10 AM to 10 PM CDT Sunday.

* IMPACTS...The strong winds could blow down trees, power lines, 
  and damage tent facilities. Power outages are possible. Travel 
  could be difficult, especially as rain changes to snow on Sunday
  afternoon.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside around trees and branches. Use 
caution if you must drive.

&&

$$

IAZ055-069-079-090-NEZ052-053-067-068-090>093-121100-
/O.NEW.KOAX.WI.Y.0008.200412T1500Z-200413T0300Z/
Harrison-Pottawattamie-Mills-Fremont-Douglas-Sarpy-Cass-Otoe-
Johnson-Nemaha-Pawnee-Richardson-
Including the cities of Missouri Valley, Woodbine, Logan, Dunlap,
Council Bluffs, Glenwood, Sidney, Hamburg, Tabor, Farragut, 
Omaha, Bellevue, Papillion, La Vista, Plattsmouth, Nebraska City,
Tecumseh, Sterling, Auburn, Pawnee City, Table Rock, 
and Falls City
314 PM CDT Sat Apr 11 2020

...WIND ADVISORY IN EFFECT FROM 10 AM TO 10 PM CDT SUNDAY...

* WHAT...North winds 25 to 35 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of east central and southeast Nebraska and 
  southwest Iowa.

* WHEN...From 10 AM to 10 PM CDT Sunday.

* IMPACTS...The strong winds could damage trees, power lines, and
  tent facilities. Power outages are possible.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
5 follow-up statements
885 
WWUS73 KOAX 120215
NPWOAX

URGENT - WEATHER MESSAGE
National Weather Service Omaha/Valley NE
915 PM CDT Sat Apr 11 2020

NEZ065-066-078-088-089-121045-
/O.CON.KOAX.HW.W.0002.200412T1500Z-200413T0300Z/
Seward-Lancaster-Saline-Jefferson-Gage-
Including the cities of Seward, Milford, Lincoln, Crete, Wilber, 
Fairbury, and Beatrice
915 PM CDT Sat Apr 11 2020

...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 AM TO 10 PM CDT
SUNDAY...

* WHAT...North winds 30 to 40 mph with gusts up to 60 mph 
  expected.

* WHERE...Seward, Lancaster, Saline, Jefferson and Gage Counties.

* WHEN...From 10 AM to 10 PM CDT Sunday.

* IMPACTS...The strong winds could blow down trees, power lines,
  and damage tent facilities. Power outages are possible. Travel
  could be difficult, especially as rain changes to snow Sunday 
  afternoon.

* ADDITIONAL DETAILS...cold temperatures later in the day Sunday
  into Sunday night could damage any sensitive vegetation. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside around trees and branches. Use
caution if you must drive.

&&

$$

IAZ055-069-079-090-NEZ052-053-067-068-090>093-121045-
/O.CON.KOAX.WI.Y.0008.200412T1500Z-200413T0300Z/
Harrison-Pottawattamie-Mills-Fremont-Douglas-Sarpy-Cass-Otoe-
Johnson-Nemaha-Pawnee-Richardson-
Including the cities of Missouri Valley, Woodbine, Logan, Dunlap,
Council Bluffs, Glenwood, Sidney, Hamburg, Tabor, Farragut, 
Omaha, Bellevue, Papillion, La Vista, Plattsmouth, Nebraska City,
Tecumseh, Sterling, Auburn, Pawnee City, Table Rock, 
and Falls City
915 PM CDT Sat Apr 11 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM CDT
SUNDAY...

* WHAT...North winds 25 to 35 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of east central and southeast Nebraska and 
  southwest Iowa.

* WHEN...From 10 AM to 10 PM CDT Sunday.

* IMPACTS...The strong winds could damage trees, power lines, 
  and tent facilities. Power outages are possible.

* ADDITIONAL DETAILS...cold temperatures later in the day Sunday
  into Sunday night could damage any sensitive vegetation. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
089 
WWUS73 KOAX 120902
NPWOAX

URGENT - WEATHER MESSAGE
National Weather Service Omaha/Valley NE
402 AM CDT Sun Apr 12 2020

NEZ066-078-088-089-121715-
/O.NEW.KOAX.FZ.W.0002.200413T0300Z-200413T1300Z/
/O.CON.KOAX.HW.W.0002.200412T1500Z-200413T0300Z/
Lancaster-Saline-Jefferson-Gage-
Including the cities of Lincoln, Crete, Wilber, Fairbury, 
and Beatrice
402 AM CDT Sun Apr 12 2020

...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
10 PM CDT THIS EVENING...
...FREEZE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 8 AM CDT
MONDAY...

* WHAT...For the High Wind Warning, north winds 25 to 35 mph 
  with gusts up to 50 mph expected. For the Freeze Warning, sub-
  freezing temperatures as low as 22 expected.

* WHERE...Lancaster, Saline, Jefferson and Gage Counties.

* WHEN...For the High Wind Warning, from 10 AM this morning to 
  10 PM CDT this evening. For the Freeze Warning, from 10 PM 
  this evening to 8 AM CDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles. Frost and 
  freeze conditions will kill crops, other sensitive vegetation 
  and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IAZ079-090-NEZ067-068-090>093-121715-
/O.NEW.KOAX.FZ.W.0002.200413T0300Z-200413T1300Z/
/O.CON.KOAX.WI.Y.0008.200412T1500Z-200413T0300Z/
Mills-Fremont-Cass-Otoe-Johnson-Nemaha-Pawnee-Richardson-
Including the cities of Glenwood, Sidney, Hamburg, Tabor, 
Farragut, Plattsmouth, Nebraska City, Tecumseh, Sterling, Auburn,
Pawnee City, Table Rock, and Falls City
402 AM CDT Sun Apr 12 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
10 PM CDT THIS EVENING...
...FREEZE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 8 AM CDT
MONDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 24 expected. For the Wind Advisory, north winds 20 to 
  30 mph with gusts up to 40 mph expected.

* WHERE...In Nebraska, Cass, Otoe, Johnson, Nemaha, Pawnee and 
  Richardson Counties. In Iowa, Mills and Fremont Counties.

* WHEN...For the Freeze Warning, from 10 PM this evening to 8 AM 
  CDT Monday. For the Wind Advisory, from 10 AM this morning to 
  10 PM CDT this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IAZ080-091-121715-
/O.NEW.KOAX.FZ.W.0002.200413T0300Z-200413T1300Z/
/O.EXA.KOAX.WI.Y.0008.200412T1500Z-200413T0300Z/
Montgomery-Page-
Including the cities of Red Oak, Clarinda, and Shenandoah
402 AM CDT Sun Apr 12 2020

...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 10 PM CDT
THIS EVENING...
...FREEZE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 8 AM CDT
MONDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 24 expected. For the Wind Advisory, north winds 20 to 30 mph
  with gusts up to 40 mph expected.

* WHERE...Montgomery and Page Counties.

* WHEN...For the Freeze Warning, from 10 PM this evening to 8 AM 
  CDT Monday. For the Wind Advisory, from 10 AM this morning to 
  10 PM CDT this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

NEZ065-121715-
/O.CON.KOAX.HW.W.0002.200412T1500Z-200413T0300Z/
Seward-
Including the cities of Seward and Milford
402 AM CDT Sun Apr 12 2020

...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
10 PM CDT THIS EVENING...

* WHAT...North winds 25 to 35 mph with gusts up to 50 mph 
  expected.

* WHERE...Seward County.

* WHEN...From 10 AM this morning to 10 PM CDT this evening.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IAZ056-121715-
/O.EXA.KOAX.WI.Y.0008.200412T1500Z-200413T0300Z/
Shelby-
Including the city of Harlan
402 AM CDT Sun Apr 12 2020

...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 10 PM CDT
THIS EVENING...

* WHAT...North winds 20 to 30 mph with gusts up to 40 mph 
  expected.

* WHERE...Shelby County.

* WHEN...From 10 AM this morning to 10 PM CDT this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

IAZ055-069-NEZ052-053-121715-
/O.CON.KOAX.WI.Y.0008.200412T1500Z-200413T0300Z/
Harrison-Pottawattamie-Douglas-Sarpy-
Including the cities of Missouri Valley, Woodbine, Logan, Dunlap,
Council Bluffs, Omaha, Bellevue, Papillion, and La Vista
402 AM CDT Sun Apr 12 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
10 PM CDT THIS EVENING...

* WHAT...North winds 20 to 30 mph with gusts up to 40 mph 
  expected.

* WHERE...In Nebraska, Douglas and Sarpy Counties. In Iowa, 
  Harrison and Pottawattamie Counties.

* WHEN...From 10 AM this morning to 10 PM CDT this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
523 
WWUS73 KOAX 121611
NPWOAX

URGENT - WEATHER MESSAGE
National Weather Service Omaha/Valley NE
1111 AM CDT Sun Apr 12 2020

NEZ066-078-088-089-130015-
/O.CON.KOAX.HW.W.0002.000000T0000Z-200413T0300Z/
/O.CON.KOAX.FZ.W.0002.200413T0300Z-200413T1300Z/
Lancaster-Saline-Jefferson-Gage-
Including the cities of Lincoln, Crete, Wilber, Fairbury, 
and Beatrice
1111 AM CDT Sun Apr 12 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...
...FREEZE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
8 AM CDT MONDAY...

* WHAT...For the High Wind Warning, north winds 30 to 40 mph with
  gusts up to 60 mph expected. For the Freeze Warning, sub- 
  freezing temperatures as low as 22 expected.

* WHERE...Lancaster, Saline, Jefferson and Gage Counties.

* WHEN...For the High Wind Warning, from 10 AM this morning to 
  10 PM CDT this evening. For the Freeze Warning, from 10 PM 
  this evening to 8 AM CDT Monday.

* IMPACTS...The strong winds could blow down trees, power lines,
  and damage tent facilities. Power outages are possible. Travel
  could be difficult, especially as rain changes to snow this
  afternoon. Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IAZ079-080-090-091-NEZ067-068-090>093-130015-
/O.CON.KOAX.FZ.W.0002.200413T0300Z-200413T1300Z/
/O.CON.KOAX.WI.Y.0008.000000T0000Z-200413T0300Z/
Mills-Montgomery-Fremont-Page-Cass-Otoe-Johnson-Nemaha-Pawnee-
Richardson-
Including the cities of Glenwood, Red Oak, Sidney, Hamburg, 
Tabor, Farragut, Clarinda, Shenandoah, Plattsmouth, 
Nebraska City, Tecumseh, Sterling, Auburn, Pawnee City, 
Table Rock, and Falls City
1111 AM CDT Sun Apr 12 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING...
...FREEZE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
8 AM CDT MONDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 24 expected. For the Wind Advisory, north winds 25 to 35 mph
  with gusts up to 50 mph expected.

* WHERE...In Nebraska, Cass, Otoe, Johnson, Nemaha, Pawnee and 
  Richardson Counties. In Iowa, Mills and Fremont Counties.

* WHEN...For the Freeze Warning, from 10 PM this evening to 8 AM 
  CDT Monday. For the Wind Advisory, from 10 AM this morning to 
  10 PM CDT this evening.

* IMPACTS...The strong winds could damage trees, power lines, and
  tent facilities. Power outages are possible. Frost and freeze  
  conditions will kill crops, other sensitive vegetation and 
  possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

NEZ065-130015-
/O.CON.KOAX.HW.W.0002.000000T0000Z-200413T0300Z/
Seward-
Including the cities of Seward and Milford
1111 AM CDT Sun Apr 12 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...North winds 30 to 40 mph with gusts up to 60 mph 
  expected.

* WHERE...Seward County.

* WHEN...From 10 AM this morning to 10 PM CDT this evening.

* IMPACTS...The strong winds could blow down trees, power lines,
  and damage tent facilities. Power outages are possible. Travel
  could be difficult, especially as rain changes to snow this 
  afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IAZ055-056-069-NEZ052-053-130015-
/O.CON.KOAX.WI.Y.0008.000000T0000Z-200413T0300Z/
Harrison-Shelby-Pottawattamie-Douglas-Sarpy-
Including the cities of Missouri Valley, Woodbine, Logan, Dunlap,
Harlan, Council Bluffs, Omaha, Bellevue, Papillion, and La Vista
1111 AM CDT Sun Apr 12 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING...

* WHAT...North winds 25 to 35 mph with gusts up to 50 mph 
  expected.

* WHERE...In Nebraska, Douglas and Sarpy Counties. In Iowa, 
  Harrison and Pottawattamie Counties.

* WHEN...From 10 AM this morning to 10 PM CDT this evening.

* IMPACTS...The strong winds could damage trees, power lines, 
  and tent facilities. Power outages are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
877 
WWUS73 KOAX 122011
NPWOAX

URGENT - WEATHER MESSAGE
National Weather Service Omaha/Valley NE
311 PM CDT Sun Apr 12 2020

NEZ066-078-088-089-130300-
/O.CON.KOAX.HW.W.0002.000000T0000Z-200413T0300Z/
/O.CON.KOAX.FZ.W.0002.200413T0300Z-200413T1300Z/
Lancaster-Saline-Jefferson-Gage-
Including the cities of Lincoln, Crete, Wilber, Fairbury, 
and Beatrice
311 PM CDT Sun Apr 12 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...
...FREEZE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
8 AM CDT MONDAY...

* WHAT...For the High Wind Warning, north winds 30 to 40 mph 
  with gusts up to 60 mph expected. For the Freeze Warning, sub- 
  freezing temperatures as low as 22 expected.

* WHERE...Lancaster, Saline, Jefferson and Gage Counties.

* WHEN...For the High Wind Warning, until 10 PM CDT. For the
  Freeze Warning, from 10 PM to 8 AM CDT Monday.

* IMPACTS...The strong winds could blow down trees, power lines, 
  and damage tent facilities. Power outages are possible. Travel 
  could be difficult, especially as rain changes to snow this 
  afternoon. Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IAZ079-080-090-091-NEZ067-068-090>093-130300-
/O.CON.KOAX.FZ.W.0002.200413T0300Z-200413T1300Z/
/O.CON.KOAX.WI.Y.0008.000000T0000Z-200413T0300Z/
Mills-Montgomery-Fremont-Page-Cass-Otoe-Johnson-Nemaha-Pawnee-
Richardson-
Including the cities of Glenwood, Red Oak, Sidney, Hamburg, 
Tabor, Farragut, Clarinda, Shenandoah, Plattsmouth, 
Nebraska City, Tecumseh, Sterling, Auburn, Pawnee City, 
Table Rock, and Falls City
311 PM CDT Sun Apr 12 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING...
...FREEZE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
8 AM CDT MONDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 24 expected. For the Wind Advisory, north winds 25 to 
  35 mph with gusts up to 50 mph expected.

* WHERE...In Nebraska, Cass, Otoe, Johnson, Nemaha, Pawnee and 
  Richardson Counties. In Iowa, Mills and Fremont Counties.

* WHEN...For the Freeze Warning, from 10 PM this evening to 8 AM
  CDT Monday. For the Wind Advisory, until 10 PM CDT.

* IMPACTS...The strong winds could damage trees, power lines, 
  and tent facilities. Power outages are possible. Frost and 
  freeze conditions will kill crops, other sensitive vegetation 
  and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

NEZ065-130300-
/O.CON.KOAX.HW.W.0002.000000T0000Z-200413T0300Z/
Seward-
Including the cities of Seward and Milford
311 PM CDT Sun Apr 12 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...North winds 30 to 40 mph with gusts up to 60 mph 
  expected.

* WHERE...Seward County.

* WHEN...until 10 PM CDT.

* IMPACTS...The strong winds could blow down trees, power lines, 
  and damage tent facilities. Power outages are possible. Travel 
  could be difficult, especially as rain changes to snow this 
  afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IAZ055-056-069-NEZ052-053-130300-
/O.CON.KOAX.WI.Y.0008.000000T0000Z-200413T0300Z/
Harrison-Shelby-Pottawattamie-Douglas-Sarpy-
Including the cities of Missouri Valley, Woodbine, Logan, Dunlap,
Harlan, Council Bluffs, Omaha, Bellevue, Papillion, and La Vista
311 PM CDT Sun Apr 12 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING...

* WHAT...North winds 25 to 35 mph with gusts up to 50 mph 
  expected.

* WHERE...In Nebraska, Douglas and Sarpy Counties. In Iowa, 
  Harrison and Pottawattamie Counties.

* WHEN...until 10 PM CDT.

* IMPACTS...The strong winds could damage trees, power lines, 
  and tent facilities. Power outages are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
557 
WWUS73 KOAX 130109
NPWOAX

URGENT - WEATHER MESSAGE
National Weather Service Omaha/Valley NE
809 PM CDT Sun Apr 12 2020

NEZ066-078-088-089-130915-
/O.CAN.KOAX.HW.W.0002.000000T0000Z-200413T0300Z/
/O.EXA.KOAX.WI.Y.0008.000000T0000Z-200413T0300Z/
/O.CON.KOAX.FZ.W.0002.200413T0300Z-200413T1300Z/
Lancaster-Saline-Jefferson-Gage-
Including the cities of Lincoln, Crete, Wilber, Fairbury, 
and Beatrice
809 PM CDT Sun Apr 12 2020

...WIND ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...
...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CDT MONDAY...
...HIGH WIND WARNING IS CANCELLED...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 24 expected. For the Wind Advisory, north winds 25 to 35 mph
  with gusts up to 45 mph expected.

* WHERE...Lancaster, Saline, Jefferson and Gage Counties.

* WHEN...For the Freeze Warning, until 8 AM CDT Monday. For the 
  Wind Advisory, until 10 PM CDT this evening.

* IMPACTS...The strong winds could damage trees, power lines, 
  and tent facilities. Power outages are possible. Frost and 
  freeze conditions will kill crops, other sensitive vegetation 
  and possibly damage unprotected outdoor plumbing.

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

NEZ065-130300-
/O.CAN.KOAX.HW.W.0002.000000T0000Z-200413T0300Z/
/O.EXA.KOAX.WI.Y.0008.000000T0000Z-200413T0300Z/
Seward-
Including the cities of Seward and Milford
809 PM CDT Sun Apr 12 2020

...WIND ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...
...HIGH WIND WARNING IS CANCELLED...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 24 expected. For the Wind Advisory, north winds 25 to 35 mph
  with gusts up to 45 mph expected.

* WHERE...Seward County.

* WHEN...Until 10 PM CDT this evening.

* IMPACTS...The strong winds could damage trees, power lines, 
  and tent facilities. Power outages are possible. Frost and 
  freeze conditions will kill crops, other sensitive vegetation 
  and possibly damage unprotected outdoor plumbing.

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

IAZ079-080-090-091-NEZ067-068-090>093-130915-
/O.CON.KOAX.FZ.W.0002.200413T0300Z-200413T1300Z/
/O.CON.KOAX.WI.Y.0008.000000T0000Z-200413T0300Z/
Mills-Montgomery-Fremont-Page-Cass-Otoe-Johnson-Nemaha-Pawnee-
Richardson-
Including the cities of Glenwood, Red Oak, Sidney, Hamburg, 
Tabor, Farragut, Clarinda, Shenandoah, Plattsmouth, 
Nebraska City, Tecumseh, Sterling, Auburn, Pawnee City, 
Table Rock, and Falls City
809 PM CDT Sun Apr 12 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING...
...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CDT MONDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 24 expected. For the Wind Advisory, north winds near 30 mph
  with gusts up to 40 mph expected.

* WHERE...In Nebraska, Cass, Otoe, Johnson, Nemaha, Pawnee and 
  Richardson Counties. In Iowa, Mills and Fremont Counties.

* WHEN...For the Freeze Warning, from 10 PM this evening to 8 AM 
  CDT Monday. For the Wind Advisory, until 10 PM CDT.

* IMPACTS...The strong winds could damage trees, power lines, 
  and tent facilities. Power outages are possible. Frost and 
  freeze conditions will kill crops, other sensitive vegetation 
  and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IAZ055-056-069-NEZ052-053-130300-
/O.CON.KOAX.WI.Y.0008.000000T0000Z-200413T0300Z/
Harrison-Shelby-Pottawattamie-Douglas-Sarpy-
Including the cities of Missouri Valley, Woodbine, Logan, Dunlap,
Harlan, Council Bluffs, Omaha, Bellevue, Papillion, and La Vista
809 PM CDT Sun Apr 12 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING...

* WHAT...North winds near 30 mph with gusts up to 40 mph 
  expected.

* WHERE...In Nebraska, Douglas and Sarpy Counties. In Iowa, 
  Harrison and Pottawattamie Counties.

* WHEN...Until 10 PM CDT.

* IMPACTS...The strong winds could damage trees, power lines, 
  and tent facilities. Power outages are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

What forecasters said that day

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

NWS Omaha, NE wrote its last area forecast discussion before this high wind warning went out at Apr 11, 12:06 PM CDT, 3 hours 8 minutes earlier.

Area forecast discussion, Apr 11, 12:06 PM CDT, 3 hours 8 minutes before
Area Forecast Discussion
National Weather Service Omaha/Valley NE
1206 PM CDT Sat Apr 11 2020

...Updated Aviation Forecast Discussion...

.DISCUSSION...
Issued at 431 AM CDT Sat Apr 11 2020

Split flow regime was prevailing large scale pattern this morning
with a cutoff low still centered over southern CA. At the surface
low pressure was situated over northeast CO. Farther north a strong
cold front extended from southern Manitoba to northern MT. Notable
from GOES, hefty moisture was currently in place over the southern
Plains poised to make a push northward today into the central
Plains. Latest PW values ranged from about 125% of normal over OK
to 160% of normal over TX.

Today

Spotty showers will be possible through the day particularly over
southwest IA. Temperature spread across the CWA will be considerable
due to cold air advection quickly dropping out of the Dakotas with
highs ranging from the mid 50s north to the low 70s south.

Tonight through Sunday night

Models continue to show ingredients coming together to produce a
significant winter storm event over the next 24-48 hrs. Difficulty
remains attempting to delineate the axis of snow/no snow and
timing onset of precip change over from liquid to frozen.

Regional 88D mosaic is already showing returns within area of mid
layer ageostrophic forcing over MT with snow approaching the western
Dakotas. Several minor impulses were aiding with ascent as well.

Models continue to prog snow increasing in areal coverage and
expanding across South Dakota and the northern NE panhandle
through today. Meanwhile, precip chances will increase through
tonight with rain showers developing within warm sector associated
with a surface low moving into western KS. A few rumbles of
thunder will be possible as well tonight along/south of I-80.
Thrust of cold air advection to support a change over from liquid
to frozen will not arrive until early Sunday morning and
timing/placement of transition across the CWA is still somewhat
problematic.

As of now, expect change from rain to snow at Norfolk to occur
sometime around sunrise with Omaha and Lincoln by mid afternoon.
Brunt of snow accumulations has shifted a bit farther north than
previously thought, and now expect amounts ranging from 2 to 5
inches will be possible northwest of a line from about Mapleton IA
to Columbus. Meanwhile along and north of the I-80 corridor anywhere
from 1 to 2 inches will be possible. Near-blizzard to blizzard
conditions will be favorable over most of northeast NE and west-
central IA on Sunday with northwest winds gusting up to 50 mph
causing blowing snow to drive visibilities down to less than a
quarter mile. South of I-80, rain will be the dominate precip type
with minor snow accumulations possible just south of I-80.

Meanwhile, portions of southeast NE on Sunday will seen wind gusts
up to 50 mph.

Monday through Friday

Other than a small chance for a rain/snow mix Thursday night, dry
conditions are still expected a modest warming trend on tap with
highs going from the mid 30s/mid 40s on Monday to the upper 40s/low
50s on Friday.

&&

.AVIATION...(For the 18Z TAFS through 18Z Sunday afternoon)
Issued at 1206 PM CDT Sat Apr 11 2020

Midday surface analysis depicted a cold front situated across the
area, extending from south of KSUX to near KOLU to KHJH. That
boundary will continue to settle south through the KOMA and KLNK
areas later today in response to the passage of a surface low
through northeast KS and northwest MO. VFR conditions are expected
to prevail into this evening with ceilings gradually lowering
overnight in response to the onset of rain showers and perhaps a
few thunderstorms. The rain is expected to change to snow after
12z on Sunday at KOFK, and likely not until after 18z Sunday at
KOMA and KLNK. Winds will become quite strong from the north on
Sunday.

&&

.OAX WATCHES/WARNINGS/ADVISORIES...
NE...Winter Storm Watch from late tonight through Monday morning for
     NEZ011-012-015>018-030>034-042>045-050-051.

     High Wind Watch from Sunday morning through Sunday evening for
     NEZ065-066-078-088-089.

IA...Winter Storm Watch from late tonight through Monday morning for
     IAZ043-055-056.

&&

DISCUSSION...DEE
AVIATION...Mead
Hazardous weather outlook, Apr 11, 10:41 AM CDT, 4 hours 33 minutes before
Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
1041 AM CDT Sat Apr 11 2020

IAZ043-055-056-NEZ011-012-015>018-030>034-042>045-050-051-120545-
Monona-Harrison-Shelby-Knox-Cedar-Thurston-Antelope-Pierce-Wayne-
Boone-Madison-Stanton-Cuming-Burt-Platte-Colfax-Dodge-Washington-
Butler-Saunders-
1041 AM CDT Sat Apr 11 2020

This Hazardous Weather Outlook is for portions of southwest
Iowa...west central Iowa...east central Nebraska and northeast
Nebraska.

.DAY ONE...Today and Tonight

Isolated thunderstorms will be possible tonight over portions of
east-central Nebraska and west-central Iowa.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

A winter storm watch remains in effect early Sunday morning
through Sunday night.

Rain is expected to change over to all snow early Sunday morning.
Snow will be heavy at times and is expected to persist through the
day before coming to close Sunday evening. Snow accumulations
ranging anywhere from of two to six inches are possible. In
addition to this, north winds gusting to 50 mph will result in
blowing snow causing blizzard or near-blizzard conditions through
the day. Trees, power lines, and tent facilities will be
susceptible to damage, and power outages are possible.

Stay informed on this evolving weather situation, especially if
you have travel plans on Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

IAZ069-079-080-090-091-NEZ052-053-067-068-090>093-120545-
Pottawattamie-Mills-Montgomery-Fremont-Page-Douglas-Sarpy-Cass-
Otoe-Johnson-Nemaha-Pawnee-Richardson-
1041 AM CDT Sat Apr 11 2020

This Hazardous Weather Outlook is for portions of southwest
Iowa...east central Nebraska and southeast Nebraska.

.DAY ONE...Today and Tonight

Isolated to scattered thunderstorms will be possible this evening
into Sunday morning. A strong storm or two is possible near the
Kansas border this evening. Hail approaching one inch in diameter
and wind gusts to 50 mph will be the primary hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Rain is expected to change over to snow from north to south
Sunday afternoon before tapering off by Sunday evening.
Accumulations of an inch or so are possible along the I-80
corridor with less than a half inch expected over far southeast
Nebraska and southwest Iowa. Sunday will also be quite windy. North
winds will increase to 30 to 40 mph with gusts to 50 mph. Trees,
power lines, and tent facilities will be susceptible to damage,
and power outages are possible. The snow combined with the winds
could result in reduced visibilities on area roads.

Stay informed on this evolving weather situation, especially if
you have travel plans on Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

NEZ065-066-078-088-089-120545-
Seward-Lancaster-Saline-Jefferson-Gage-
1041 AM CDT Sat Apr 11 2020

This Hazardous Weather Outlook is for portions of southeast
Nebraska.

.DAY ONE...Today and Tonight

Isolated to scattered thunderstorms will be possible this evening
into Sunday morning. A strong storm or two is possible near the
Kansas border this evening. Hail approaching one inch in diameter
and wind gusts to 50 mph will be the primary hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

A high wind watch is in effect on Sunday and Sunday evening.

Rain is expected to change over to snow from north to south
Sunday afternoon. The snow activity though is expected to taper
off quickly by Sunday evening. Accumulations of an inch or so are
possible along the I-80 corridor with less than a half inch
expected over far southeast Nebraska and southwest Iowa. Sunday
will also be quite windy. North winds will increase to 30 to 40
mph with gusts to 50 to 55 mph. Trees, power lines, and tent
facilities will be susceptible to damage, and power outages are
possible. The snow combined with the winds could result in reduced
visibilities on area roads.

Stay informed on this evolving weather situation, especially if
you have travel plans on Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 3:08 PM CDTWinter Storm WarningOAXAntelope, Boone, Cedar, Knox, Madison, Pierce and 2 more28 hr
Apr 11, 3:08 PM CDTWinter Weather AdvisoryOAXBurt, Butler, Colfax, Cuming, Dodge, Platte and 3 more29 hr
Apr 11, 3:14 PM CDTWind AdvisoryOAXCass, Douglas, Gage, Jefferson, Johnson, Lancaster and 7 more31 hr

Nearby

High Wind Warnings in Nebraska, 2020Every high wind 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.