Severe Thunderstorm Warning 202, NWS Omaha, NE

085 
WWUS53 KOAX 152216
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
416 PM CST Wed Dec 15 2021

IAC071-085-129-137-145-155-165-152315-
/O.CON.KOAX.SV.W.0202.000000T0000Z-211215T2315Z/
Fremont IA-Montgomery IA-Mills IA-Pottawattamie IA-Harrison IA-
Shelby IA-Page IA-
416 PM CST Wed Dec 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CST
FOR EASTERN FREMONT...MONTGOMERY...EASTERN MILLS...EASTERN
POTTAWATTAMIE...SOUTHEASTERN HARRISON...SHELBY AND PAGE COUNTIES...

At 415 PM CST, severe thunderstorms were located along a line
extending from near Fort Calhoun to 8 miles northeast of Union to
near Humboldt, moving northeast at 85 mph.

THESE ARE VERY DESTRUCTIVE STORMS.

HAZARD...90 mph wind gusts.

SOURCE...Trained weather spotters.

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be heavily damaged or destroyed. Homes and businesses 
         will have substantial roof and window damage. Expect 
         extensive tree damage and power outages.

Locations impacted include...
Red Oak, Clarinda, Shenandoah, Harlan, Oakland, Avoca, Villisca,
Carson, Essex, Walnut, Stanton, Shelby, Minden, Farragut, Emerson,
Earling, Elliott, Irwin, Defiance and Macedonia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM CST for southwestern
Iowa.

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.

&&

LAT...LON 4058 9552 4176 9557 4186 9554 4186 9510
      4160 9509 4160 9504 4151 9504 4150 9516
      4116 9516 4116 9493 4058 9491
TIME...MOT...LOC 2215Z 246DEG 73KT 4140 9605 4086 9578 4019 9592 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...90 MPH

$$

DeWald

227 
WWUS53 KOAX 152241
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
441 PM CST Wed Dec 15 2021

IAC071-085-129-137-145-155-165-152315-
/O.CON.KOAX.SV.W.0202.000000T0000Z-211215T2315Z/
Fremont IA-Montgomery IA-Mills IA-Pottawattamie IA-Harrison IA-
Shelby IA-Page IA-
441 PM CST Wed Dec 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CST
FOR EASTERN FREMONT...MONTGOMERY...EASTERN MILLS...EASTERN
POTTAWATTAMIE...SOUTHEASTERN HARRISON...SHELBY AND PAGE COUNTIES...

At 440 PM CST, severe thunderstorms were located along a line
extending from 8 miles southwest of Earling to 4 miles east of Carson
to 8 miles southeast of Riverton, moving northeast at 85 mph.

THESE ARE VERY DESTRUCTIVE STORMS.

HAZARD...90 mph wind gusts.

SOURCE...Trained weather spotters.

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be heavily damaged or destroyed. Homes and businesses 
         will have substantial roof and window damage. Expect 
         extensive tree damage and power outages.

Locations impacted include...
Red Oak, Clarinda, Shenandoah, Harlan, Oakland, Avoca, Villisca,
Carson, Essex, Walnut, Stanton, Shelby, Minden, Farragut, Emerson,
Earling, Elliott, Irwin, Defiance and Macedonia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM CST for southwestern
Iowa.

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.

&&

LAT...LON 4058 9552 4176 9557 4186 9554 4186 9510
      4160 9509 4160 9504 4151 9504 4150 9516
      4116 9516 4116 9493 4058 9491
TIME...MOT...LOC 2240Z 229DEG 72KT 4171 9556 4123 9532 4059 9547 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...90 MPH

$$

DeWald

470 
WWUS53 KOAX 152255
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
455 PM CST Wed Dec 15 2021

IAC085-129-152304-
/O.CAN.KOAX.SV.W.0202.000000T0000Z-211215T2315Z/
Mills IA-Harrison IA-
455 PM CST Wed Dec 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MILLS AND SOUTHEASTERN
HARRISON COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 800 PM CST for southwestern
Iowa.

LAT...LON 4058 9542 4121 9537 4186 9554 4186 9510
      4160 9509 4160 9504 4151 9504 4150 9516
      4116 9516 4116 9493 4058 9491
TIME...MOT...LOC 2254Z 249DEG 60KT 4178 9525 4130 9508 4066 9517 

$$

IAC071-137-145-155-165-152315-
/O.CON.KOAX.SV.W.0202.000000T0000Z-211215T2315Z/
Fremont IA-Montgomery IA-Pottawattamie IA-Shelby IA-Page IA-
455 PM CST Wed Dec 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CST
FOR EASTERN FREMONT...MONTGOMERY...EASTERN POTTAWATTAMIE...SHELBY AND
PAGE COUNTIES...

At 454 PM CST, severe thunderstorms were located along a line
extending from near Irwin to 5 miles northeast of Griswold to near
Coin, moving east at 70 mph.

THESE ARE VERY DESTRUCTIVE STORMS.

HAZARD...90 mph wind gusts.

SOURCE...Trained weather spotters.

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be heavily damaged or destroyed. Homes and businesses 
         will have substantial roof and window damage. Expect 
         extensive tree damage and power outages.

Locations impacted include...
Red Oak, Clarinda, Shenandoah, Harlan, Oakland, Avoca, Villisca,
Essex, Walnut, Stanton, Shelby, Earling, Elliott, Irwin, Defiance,
Coin, Braddyville, Panama, College Springs and Hancock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM CST for southwestern
Iowa.

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.

&&

LAT...LON 4058 9542 4121 9537 4186 9554 4186 9510
      4160 9509 4160 9504 4151 9504 4150 9516
      4116 9516 4116 9493 4058 9491
TIME...MOT...LOC 2254Z 249DEG 60KT 4178 9525 4130 9508 4066 9517 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...90 MPH

$$

DeWald

351 
WWUS53 KOAX 152302
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
502 PM CST Wed Dec 15 2021

IAC071-152311-
/O.CAN.KOAX.SV.W.0202.000000T0000Z-211215T2315Z/
Fremont IA-
502 PM CST Wed Dec 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN FREMONT COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 800 PM CST for southwestern
Iowa.

LAT...LON 4058 9535 4127 9527 4186 9546 4186 9510
      4160 9509 4160 9504 4151 9504 4150 9516
      4116 9516 4116 9493 4058 9491
TIME...MOT...LOC 2301Z 252DEG 66KT 4182 9508 4134 9491 4070 9500 

$$

IAC137-145-155-165-152315-
/O.CON.KOAX.SV.W.0202.000000T0000Z-211215T2315Z/
Montgomery IA-Pottawattamie IA-Shelby IA-Page IA-
502 PM CST Wed Dec 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CST
FOR MONTGOMERY...EASTERN POTTAWATTAMIE...SHELBY AND PAGE COUNTIES...

At 501 PM CST, severe thunderstorms were located along a line
extending from 6 miles south of Manning to 6 miles southeast of
Atlantic to near Clarinda, moving east at 75 mph.

THESE ARE VERY DESTRUCTIVE STORMS.

HAZARD...90 mph wind gusts.

SOURCE...Trained weather spotters.

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be heavily damaged or destroyed. Homes and businesses 
         will have substantial roof and window damage. Expect 
         extensive tree damage and power outages.

Locations impacted include...
Red Oak, Clarinda, Harlan, Avoca, Villisca, Essex, Walnut, Stanton,
Earling, Elliott, Irwin, Defiance, Coin, Braddyville, College
Springs, Shambaugh, Westphalia, Grant, Yorktown and Kirkman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM CST for southwestern
Iowa.

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.

&&

LAT...LON 4058 9535 4127 9527 4186 9546 4186 9510
      4160 9509 4160 9504 4151 9504 4150 9516
      4116 9516 4116 9493 4058 9491
TIME...MOT...LOC 2301Z 252DEG 66KT 4182 9508 4134 9491 4070 9500 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...90 MPH

$$

DeWald

542 
WWUS53 KOAX 152307
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
507 PM CST Wed Dec 15 2021

IAC155-165-152317-
/O.CAN.KOAX.SV.W.0202.000000T0000Z-211215T2315Z/
Pottawattamie IA-Shelby IA-
507 PM CST Wed Dec 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN POTTAWATTAMIE AND
SHELBY COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 800 PM CST for southwestern
Iowa.

LAT...LON 4058 9526 4116 9521 4116 9493 4073 9493
      4073 9491 4058 9491
TIME...MOT...LOC 2307Z 252DEG 66KT 4185 9497 4137 9480 4073 9489 

$$

IAC137-145-152315-
/O.CON.KOAX.SV.W.0202.000000T0000Z-211215T2315Z/
Montgomery IA-Page IA-
507 PM CST Wed Dec 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CST
FOR MONTGOMERY AND PAGE COUNTIES...

At 507 PM CST, severe thunderstorms were located along a line
extending from 6 miles southeast of Manning to 11 miles east of
Atlantic to 7 miles east of Clarinda, moving east at 75 mph.

THESE ARE VERY DESTRUCTIVE STORMS.

HAZARD...90 mph wind gusts.

SOURCE...Trained weather spotters.

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be heavily damaged or destroyed. Homes and businesses 
         will have substantial roof and window damage. Expect 
         extensive tree damage and power outages.

Locations impacted include...
Red Oak, Clarinda, Villisca, Stanton, Elliott, Coin, Braddyville,
College Springs, Shambaugh, Grant, Yorktown, Blanchard, Hepburn and
Viking Lake State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM CST for southwestern
Iowa.

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.

&&

LAT...LON 4058 9526 4116 9521 4116 9493 4073 9493
      4073 9491 4058 9491
TIME...MOT...LOC 2307Z 252DEG 66KT 4185 9497 4137 9480 4073 9489 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...90 MPH

$$

DeWald

925 
WWUS53 KOAX 152313
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
513 PM CST Wed Dec 15 2021

IAC137-145-152323-
/O.EXP.KOAX.SV.W.0202.000000T0000Z-211215T2315Z/
Montgomery IA-Page IA-
513 PM CST Wed Dec 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR MONTGOMERY AND PAGE COUNTIES
WILL EXPIRE AT 515 PM CST...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 800 PM CST for southwestern
Iowa.

LAT...LON 4058 9526 4116 9521 4116 9493 4073 9493
      4073 9491 4058 9491
TIME...MOT...LOC 2313Z 252DEG 66KT 4188 9485 4140 9468 4076 9477 

$$

DeWald

Area Forecast Discussion
National Weather Service Omaha/Valley NE
200 PM CST Wed Dec 15 2021

...Updated Mesoscale Forecast Discussion...

.MESOSCALE DISCUSSION...
Issued at 116 PM CST Wed Dec 15 2021

A Tornado Watch has been issued for much of eastern Nebraska and
western Iowa. Temperatures have soared into the 70s and dew point
temperatures are in the upper 50s. Storms are currently ongoing
in south central Nebraska where tornado and thunderstorm warnings
have been issued. The storms have a forward motion to the
northeast at approximately 80 mph. Widespread damaging winds are
expected with peak wind gusts up to 90 mph possible. Impressive
shear and storm relative helicity values will aid smaller scale
circulations within the squall line leading to a risk for
tornadoes.

After the squall line has passed through, there may be a lull in
wind gusts, but it will only be temporary. Sustained wind speeds
of 30 to 40 mph are expected through the afternoon and into the
evening. Peak wind gusts of up to 70 mph are forecast between 4 PM
and 8 PM. This will be several hours of severe criteria winds
which could lead to damage to trees, power lines, and some
structures. Power outages are likely. Winds are expected to begin
to decrease after 8 PM, but 40 mph gusts are forecast up until
midnight, after which the winds gusts should drop to lower than 20
mph.

Along the NE/SD border, light snow with accumulations under an
inch are possible. Blowing snow leading to reduced visibilities
due to strong winds and snowfall could result in hazardous
travel.

&&

.DISCUSSION...
Issued at 401 AM CST Wed Dec 15 2021

.Synopsis:

A highly impactful weather system is set to affect the entire
forecast area today, with prolonged damaging winds gusts, areas of
extreme fire danger, severe weather, and brief whiteout conditions
all being possible hazards.

Today:

Water vapor imagery this morning places a very progressive,
neutrally-tilted upper trough over the Intermountain West, with
broad southwesterly flow at the all levels over the central CONUS.
This trough is expected progress to the lee of the Rockies by late
morning, beginning a rapid deepening process throughout the day. A
surface center of low pressure is expected to develop and travel
from the Nebraska Panhandle across northern Nebraska/souther
South Dakota, dragging a very strong dryline ahead of a cold front
to the west of it. As the system deepens, the mid/upper flow is
expected to become negatively-tilted, inducing strong moisture
flux into the area and general warm air advection as extremely
strong wind fields in the lower levels develop as the system
deepens. Deep mixing and extremely impressive low-level winds are
going to allow for efficient momentum transfer to the surface.
Wind gusts values are expected to land in the 60 to 75 mph range
this afternoon, with the strongest winds being associated with a
southwest to westerly sting jet that wraps around the dry conveyor
belt. Power outages, damage to trees/power poles/potentially
structures, and hazardous travel conditions for any vehicles are
expected. To put this system in context, the large majority of
fields available (such as surface temperatures, sustained winds,
and gust) are at the very top of the ECMWF model reanalysis for
this time of year; going back 20 years.

The next piece of the hazard puzzle comes in the form of extreme
fire danger, associated with the strong winds and low relative
humidity values behind the dryline. As the dryline passes through
the area, portions of southeast Nebraska are going to see dewpoints
fall by as much as 44 degrees over the course of an hour or two.
Arcing power lines and sparks from vehicles or machinery could serve
as a source of ignition while winds gust to over 70 mph in spots
collocated with minimum relative humidity values as low as 12%. The
main are of concern for extreme and uncontrollable fire behavior is
generally south of a line from Columbus to Harlan, and also has Red
Flag Warning in place beginning at noon.

With the strong moisture flux ahead of the dry line, dewpoints ahead
of the surface low and dryline top out in the low-to-upper 50's
assisting MLCAPE values reach values as high as 900 J/kg in far
northeastern Nebraska, with bulk shear values well upwards of 60
kts. Current CAM runs indicate that the main convective mode will
take the form of a line of showers and storms along the main
boundary, reinforcing the primary wind threat. Sufficient
curvature exists in the low-level hodographs to support a tornado
threat embedded in the main line of storms as well, with the main
area of concern being in northeastern Nebraska into north-central
Iowa. A lower-probability scenario is the possibility of a more
discrete, quick-moving tornadic supercell or two where the main
pressure falls are expected with the advancement of the surface
low. The main failure mode of the latter scenario will be the
difficulty that a consistent updraft will be sustained despite the
very strong shear and entrainment. The main timeframe for severe
weather in the CWA will be from 2 to 7 PM.

A complicating factor to the forecast associated with the wraparound
moisture will come in the form of snow along the backside of the
surface low, where wind speeds will still be strong as much cooler
temperatures push south; introducing the possibility of brief
whiteout conditions. The chances for this happening currently look
to stay north of a line from Albion to Pender. These rapid-onset
whiteout conditions are often accompanied by a flash freeze of road
temperatures, creating extremely hazardous travel conditions if
they manifest. The main timeframe for this hazard looks to be from
5 to 9 PM.

The overall weather even is expected to wind down late this evening
into the overnight hours, with wind gusts returning to sub-30 mph
speeds by sunrise.

.Thursday into Early Next Week:

Going forward into the forecast period quiet weather is expected as
the mid/upper pattern modulates between zonal to southwesterly flow.
Little chance for meaningful precipitation are forecast, as the
main weather makers miss our neck of the woods to the
north/south/east. Highs will generally stay above-average, and in
the low-to mid 40's for much of the area.

&&

.AVIATION...(For the 18Z TAFS through 18Z Thursday afternoon)
Issued at 1134 AM CST Wed Dec 15 2021

Extremely strong wind gusts will occur this TAF period with peak
wind gusts of 50 to 60 kts. The strongest winds are expected to
occur between 22Z and 02Z. There are signals from the HRRR/RAP/FV3
that wind gusts could be stronger than forecast. A line of
thunderstorms are also forecast to move through the area this
afternoon. That line of storms will be moving quickly with speeds
up to 80 mph.

The strong winds will not end with the storms. A wind shift is
expected from the south to the southwest, and eventually to the
northwest. Severe criteria winds are expected to persist for
several hours. Ceilings may briefly drop down MVFR criteria with
the passage of the thunderstorms. Skies will quickly clear up
afterward.

There is likely not to be a typical updated afternoon general AFD.
Next update will be on the overnight. There will be an updated
aviation discussion for 00Z TAFs.

&&

.OAX WATCHES/WARNINGS/ADVISORIES...
NE...High Wind Warning until 9 PM CST this evening for NEZ011-012-
     015>018-030>034-042>045-050>053-065>068-078-088>093.

     Red Flag Warning until 9 PM CST this evening for NEZ050>053-
     065>068-078-088>093.

IA...High Wind Warning until 9 PM CST this evening for IAZ043-055-056-
     069-079-080-090-091.

     Red Flag Warning until 9 PM CST this evening for IAZ069-079-080-
     090-091.

&&

MESOSCALE...Fajman
DISCUSSION...Petersen
AVIATION...Fajman

Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
127 PM CST Wed Dec 15 2021

IAZ069-079-080-090-091-NEZ050>053-065>068-078-088>093-161930-
Pottawattamie-Mills-Montgomery-Fremont-Page-Butler-Saunders-
Douglas-Sarpy-Seward-Lancaster-Cass-Otoe-Saline-Jefferson-Gage-
Johnson-Nemaha-Pawnee-Richardson-
127 PM CST Wed Dec 15 2021

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

.DAY ONE...This Afternoon and Tonight

There are several weather threats today.

A Tornado Watch is in effect from 1 PM until 8 PM. Strong to
severe storms are likely this afternoon, including wind gusts in
excess of 70 to 80 mph with a few tornadoes possible. Storms will
develop quickly and may move up to 85 mph.

A High Wind Warning is in effect from from 12 PM Wednesday
morning through 9 PM Wednesday evening. The strongest winds are
expected to arrive by noon and beyond.

A Red Flag Warning has been issued for the afternoon and early
evening.

An intense storm system will move through the region Wednesday.
Widespread wind gusts of 50 to 70 mph are likely, with potential
for peak gusts of 75 mph. A few severe storms and dangerous fire
weather conditions are also possible Wednesday afternoon. Areas of
blowing dust may also occur with reduced visibility.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Strong winds and dangerous fire conditions will linger into the
evening, then improve shortly after midnight.

.SPOTTER INFORMATION STATEMENT...

IAZ043-055-056-NEZ011-012-015>018-030>034-042>045-161930-
Monona-Harrison-Shelby-Knox-Cedar-Thurston-Antelope-Pierce-Wayne-
Boone-Madison-Stanton-Cuming-Burt-Platte-Colfax-Dodge-Washington-
127 PM CST Wed Dec 15 2021

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

.DAY ONE...This Afternoon and Tonight

There are several weather threats today.

A Tornado Watch is in effect from 1 PM until 8 PM. Strong to
severe storms are likely this afternoon, including wind gusts in
excess of 70 to 80 mph with a few tornadoes possible. Storms will
develop quickly and may move up to 85 mph.

A High Wind Warning is in effect from from 12 PM Wednesday
morning through 9 PM Wednesday evening. The strongest winds are
expected to arrive by noon and beyond.

An intense storm system will move through the region Wednesday.
Widespread wind gusts of 50 to 70 mph are likely, with potential
for peak gusts of 75 mph. A few severe storms are also possible on
Wednesday afternoon. Brief whiteout conditions are possible with
snow northwest of a line from Albion to Pender. Areas of blowing
dust may also occur with reduced visibility.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Strong winds will linger into the evening, then improve shortly
after midnight.

.SPOTTER INFORMATION STATEMENT...

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
335 PM CST WED DEC 15 2021

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

0330 PM     TSTM WND GST     4 NW LINCOLN            40.85N 96.76W
12/15/2021  M93 MPH          LANCASTER          NE   ASOS

&&

TSN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
340 PM CST WED DEC 15 2021

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

0335 PM     TSTM WND DMG     HOWELLS                 41.73N 97.00W
12/15/2021                   COLFAX             NE   EMERGENCY MNGR

            PARTIAL ROOF BLOWN OFF.

&&

TSN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
346 PM CST WED DEC 15 2021

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

0340 PM     TORNADO          BEEMER                  41.93N 96.81W
12/15/2021                   CUMING             NE   FIRE DEPT/RESCUE

            CONFIRMED TORNADO BY FIRE DEPARTMENT.

&&

SF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
347 PM CST WED DEC 15 2021

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

0340 PM     TSTM WND DMG     5 N LINCOLN             40.88N 96.69W
12/15/2021                   LANCASTER          NE   STORM CHASER

            REPORT OF ROOF BLOWN OFF APARTMENT BUILDING.

&&

PEARSON

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
348 PM CST WED DEC 15 2021

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

0344 PM     TSTM WND GST     BENNET                  40.68N 96.51W
12/15/2021  M92 MPH          LANCASTER          NE   TRAINED SPOTTER

&&

SF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
351 PM CST WED DEC 15 2021

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

0349 PM     TSTM WND GST     EAGLE                   40.82N 96.43W
12/15/2021  M90 MPH          CASS               NE   FIRE DEPT/RESCUE

&&

SF