Severe Thunderstorm Warning 4, NWS Omaha, NE

424 
WWUS53 KOAX 062103
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
303 PM CST MON MAR 6 2017

NEC055-153-155-062130-
/O.CON.KOAX.SV.W.0004.000000T0000Z-170306T2130Z/
Sarpy NE-Douglas NE-Saunders NE-
303 PM CST MON MAR 6 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CST
FOR NORTHWESTERN SARPY...DOUGLAS AND SOUTHEASTERN SAUNDERS
COUNTIES...

At 303 PM CST, a severe thunderstorm was located near Yutan, or 18
miles west of Omaha, moving northeast at 50 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees. 

Locations impacted include...
Omaha, La Vista, Gretna, Valley, Yutan, Waterloo, Elkhorn, Millard,
Bennington, Boys Town, Koa Campground, Two Rivers State Recreation
Area and Chalco.

This includes the following highways...
 Highway 275 in Nebraska near mile marker 167.
 Highway 75 in Nebraska near mile marker 99.
 Highway 92 in Nebraska between mile markers 462 and 466.
 Interstate 80 in Nebraska between mile markers 430 and 446.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4103 9627 4113 9650 4139 9626 4139 9596
      4118 9610
TIME...MOT...LOC 2103Z 220DEG 44KT 4119 9636 

HAIL...1.50IN
WIND...60MPH
 
$$

MEAD

561 
WWUS53 KOAX 062111
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
311 PM CST MON MAR 6 2017

NEC055-153-155-062130-
/O.CON.KOAX.SV.W.0004.000000T0000Z-170306T2130Z/
Sarpy NE-Douglas NE-Saunders NE-
311 PM CST MON MAR 6 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CST
FOR NORTHWESTERN SARPY...DOUGLAS AND EAST CENTRAL SAUNDERS
COUNTIES...

At 310 PM CST, a severe thunderstorm was located over Elkhorn, or 11
miles west of Omaha, moving northeast at 55 mph.

HAZARD...60 mph wind gusts and half dollar size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Omaha, La Vista, Gretna, Valley, Yutan, Waterloo, Elkhorn, Millard,
Bennington, Boys Town, Two Rivers State Recreation Area and Chalco.

This includes the following highways...
 Highway 275 in Nebraska near mile marker 167.
 Highway 75 in Nebraska near mile marker 99.
 Highway 92 in Nebraska between mile markers 462 and 466.
 Interstate 80 in Nebraska between mile markers 432 and 446.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4108 9623 4119 9645 4139 9626 4139 9596
      4118 9610
TIME...MOT...LOC 2110Z 228DEG 57KT 4127 9623 

HAIL...1.25IN
WIND...60MPH
 
$$

MEAD

Area Forecast Discussion
National Weather Service Omaha/Valley NE
1127 AM CST Mon Mar 6 2017

.SHORT TERM...(Today through Wednesday)
Issued at 245 AM CST Mon Mar 6 2017

Plenty of issues to deal with in the short term, strong winds, Red
Flag Warning conditions, potential for thunderstorms. Did not go
with a High Wind Warning for any of our area at this time, since
confidence was not high enough, BUT there is POTENTIAL that winds
may get strong enough for that later this afternoon. Most likely
area would be northeast Nebraska, where models show pretty strong
descending motion on the 295K isentropic surface. But actually a
good portion of the forecast area might see sustained winds of
over 40 mph. High wind warnings are issued for sustained winds of
40 mph or gusts of 58 mph or more.

Large scale pattern features a mid tropospheric trough to our
west, and height falls of up to 100 meters over the past 12 hours
were observed at 00Z over parts of Utah and Nevada. The bulk of
the energy associated with that will stay to our northwest or
north. Low level moisture continued to stream northward, with a 7
degree 850 mb dewpoint at KOAX last evening and a 4 degree 850 mb
dewpoint at KMPX. Thermal ridge at 850 mb was a bit farther to the
west...from New Mexico up into western South Dakota. Surface
analysis early this morning showed low pressure over the high
plains and strong southerly flow over our area. Winds in Kansas
have been hitting advisory criteria at times. Will bump up the
start time of our wind advisory to 16z and include all counties.
Decent low level jet has formed and RAP model suggests that 1 km
winds will remain in the 40 to 55 knot range at least into mid
morning. There will be increasing instability from late morning
into early afternoon, and included a chance of thunderstorms for
the far eastern parts of Nebraska and all of southwest Iowa. The
experimental HRRR seemed to have a decent handle on possible
evolution, with storms initially developing between 19z and 21z
over far southeast Nebraska into southwest Iowa. There should be a
narrow ribbon of ML CAPE values of over 1500 J/KG and adequate
shear for storm organization. That should move east/southeast of
our area by 00Z. Have highs mainly from around 70 to the mid 70s.
Some upper 70s are possible from southeast Nebraska into western
Iowa and it may only reach the mid 60s in our far western counties
of northeast Nebraska.

Strong winds will continue into the early evening, then decrease
some overnight. Surface low by 00Z should be over northeast North
Dakota, with the cold front curving down through Minnesota,
western Iowa and then into northeast Kansas. Rain chances in our
area look low after the early evening.

Brisk westerly winds and low afternoon relative humidities will
create elevated fire danger for Tuesday even though highs should
only reach the 50s to around 60. Wednesday should still be dry and
a little warmer, with weaker westerly winds.

.LONG TERM...(Wednesday night through Sunday)
Issued at 245 AM CST Mon Mar 6 2017

Fast nearly zonal flow aloft will be in place over much of the
CONUS from Wednesday night into Friday night. General consensus is
that a weak trough will move through the region around Saturday.

Will include some low POPs for rain/snow Thursday night into
Friday, which is based mostly on the Canadian model. The 00Z GFS
and ECMWF were mainly dry in those periods, keep the precipitation
farther north. There is better model agreement from Friday night
into Saturday morning for rain and snow. Too early to give much
consideration to specific snow accumulation potential but there
may be a few inches. Liquid equivalents of 0.25 to 0.50 seem
possible.

Another disturbance could bring a mix of rain and snow by Sunday
into Sunday night.

&&

.AVIATION...(For the 18Z TAFS through 18Z Tuesday afternoon)
Issued at 1127 AM CST Mon Mar 6 2017

An intense surface low located along the SD-ND border north of
KABR as of 17z will develop northeast while an associated dryline
surges east through the mid MO Valley. With the passage of this
boundary, strong south winds will veer to southwest and then west
with gusts to 40-50 kt possible. Some relaxation of the surface
gradient is expected later tonight. Otherwise, expect VFR
conditions to prevail through the forecast period.

&&

.FIRE WEATHER...
Issued at 230 AM CST Mon Mar 6 2017

Extremely dry and windy conditions are expected Monday as southwest
then west winds develop ahead of and behind a cold front. Relative
humidities well below 20 percent are expected for much of eastern
Nebraska, with winds easily gusting over 40 mph.

Will expand the Red Flag Warning into Iowa, so all of our area
will be in a warning from 18z to 02z. RH values probably will not
be low enough in Iowa until mid or late afternoon, but it should
meet criteria.

Conditions do not look quite as bad for Tuesday, but decided after
coordinating with other offices to issue a Fire Weather Watch for
our Nebraska counties for Tuesday.

&&

.OAX WATCHES/WARNINGS/ADVISORIES...
NE...Wind Advisory until 8 PM CST this evening for NEZ011-012-015>018-
     030>034-042>045-050>053-065>068-078-088>093.

     Red Flag Warning until 8 PM CST this evening for NEZ011-012-
     015>018-030>034-042>045-050>053-065>068-078-088>093.

     Fire Weather Watch from Tuesday morning through Tuesday evening
     for NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-
     088>093.

IA...Red Flag Warning until 8 PM CST this evening for IAZ043-055-056-
     069-079-080-090-091.

     Wind Advisory until 8 PM CST this evening for IAZ043-055-056-069-
     079-080-090-091.

&&

SHORT TERM...Miller
LONG TERM...Miller
AVIATION...Mead
FIRE WEATHER...Miller

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
238 PM CST Mon Mar 6 2017

NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>090-
092-071045-
KNOX-CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON-STANTON-
CUMING-BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER-SAUNDERS-
DOUGLAS-SARPY-SEWARD-LANCASTER-CASS-OTOE-SALINE-JEFFERSON-GAGE-
JOHNSON-PAWNEE-
238 PM CST Mon Mar 6 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL
NEBRASKA...NORTHEAST NEBRASKA AND SOUTHEAST NEBRASKA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

There is also chance of isolated severe thunderstorms in eastern
Nebraska this afternoon as a line of storms has developed Decatur
to Fremont to west of Lincoln. The main hazard is large hail and
damaging winds. There is also a possibility of an isolated tornado
with these storms.

Strong winds and unseasonably warm temperatures will contribute
to very dangerous fire weather conditions this afternoon into
evening. As a result, a red flag warning is in effect until 8 PM.
A wind advisory is also in effect until 8 PM. Wind gusts as high
as 45 to 55 mph are possible this afternoon into evening.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A fire weather watch is in effect for Tuesday.

There is a chance of light snow over parts of the area from
Thursday night into Friday morning, then again from Friday night
into Saturday morning. There is also a chance for light snow
for parts of the area Sunday morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation s possible this afternoon.

IAZ043-055-056-069-079-080-090-091-071045-
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT-
PAGE-
238 PM CST Mon Mar 6 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST IOWA
AND WEST CENTRAL IOWA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A tornado watch is in effect until 10 PM CST for western Iowa.
Storms are developing quickly in Nebraska and will move into Iowa
with a threat of isolated tornadoes, large hail and damaging
thunderstorm winds this aftenoon into the evening.

Strong winds and unseasonably warm
temperatures will contribute to very dangerous fire weather
conditions this afternoon into evening. As a result, a red flag
warning is in effect until 8 PM. A wind advisory is also in effect
until 8 PM. Wind gusts as high as 45 to 55 mph are possible this
afternoon into evening.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

There is a chance of light snow over parts of the area from
Thursday night into Friday morning, then again from Friday night
into Saturday morning. There is also a chance for light snow
for parts of the area Sunday morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this aftenoon and evening.

NEZ091-093-071045-
NEMAHA-RICHARDSON-
238 PM CST Mon Mar 6 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
NEBRASKA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A tornado watch is in effect until 10 PM CST for southeastern
Nebraska. There is also chance of isolated severe thunderstorms
in eastern Nebraska this afternoon as a line of storms has
developed Decatur to Fremont to west of Lincoln. The main hazard
is large hail and damaging winds. There is also a possibility of
an isolated tornado with these storms.

Strong winds and unseasonably warm temperatures will contribute
to very dangerous fire weather conditions this afternoon into
evening. As a result, a red flag warning is in effect until 8 PM.
A wind advisory is also in effect until 8 PM. Wind gusts as high
as 45 to 55 mph are possible this afternoon into evening.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A fire weather watch is in effect for Tuesday.

There is a chance of light snow over parts of the area from
Thursday night into Friday morning, then again from Friday night
into Saturday morning. There is also a chance for light snow
for parts of the area Sunday morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is possible this afternoon.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
220 PM CST MON MAR 06 2017

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

0201 PM     HAIL             OAKLAND                 41.84N 96.47W
03/06/2017  E1.00 INCH       BURT               NE   LAW ENFORCEMENT

&&

SFORTIN

Special Weather Statement
National Weather Service Omaha/Valley Nebraska
221 PM CST MON MAR 6 2017

NEZ033-034-044-045-062045-
Burt NE-Washington NE-Cuming NE-Dodge NE-
221 PM CST MON MAR 6 2017

...Significant Weather Advisory for SOUTHWESTERN BURT...SOUTHEASTERN
CUMING...NORTHWESTERN WASHINGTON AND CENTRAL DODGE COUNTIES UNTIL 245
PM CST...

At 220 PM CST, Doppler radar was tracking a strong thunderstorm 6
miles southwest of Scribner, or 33 miles east of Columbus, moving
northeast at 55 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Scribner, Hooper, Uehling, Winslow, Dead Timber State Recreation Area
and 7 Miles North Of North Bend.

This includes the following highways...
 Highway 275 in Nebraska between mile markers 129 and 137.
 Highway 30 in Nebraska near mile marker 414.
 Highway 77 in Nebraska between mile markers 126 and 136.

LAT...LON 4144 9670 4152 9690 4182 9657 4172 9636
TIME...MOT...LOC 2020Z 226DEG 72KT 4158 9673

MEAD

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
222 PM CST MON MAR 06 2017

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

0148 PM     NON-TSTM WND GST 2 SW BELLEVUE           41.14N 95.96W
03/06/2017  M54 MPH          SARPY              NE   PUBLIC

            BY HANDHELD ANEMOMETER

&&

SFORTIN

Special Weather Statement
National Weather Service Omaha/Valley Nebraska
227 PM CST MON MAR 6 2017

NEZ044-045-051-052-062100-
Saunders NE-Washington NE-Douglas NE-Dodge NE-
227 PM CST MON MAR 6 2017

...Significant Weather Advisory for SOUTHWESTERN WASHINGTON...
SOUTHEASTERN DODGE...WESTERN DOUGLAS AND EASTERN SAUNDERS COUNTIES
UNTIL 300 PM CST...

At 227 PM CST, Doppler radar was tracking a strong thunderstorm 5
miles south of Wahoo, or 23 miles north of Lincoln, moving northeast
at 55 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Fremont, Wahoo, Valley, Arlington, Yutan, Waterloo, Mead, Elkhorn,
Bennington, Washington, Ithaca, Leshara and Two Rivers State
Recreation Area.

This includes the following highways...
 Highway 275 in Nebraska between mile markers 156 and 167.
 Highway 30 in Nebraska between mile markers 429 and 432.
 Highway 77 in Nebraska between mile markers 87 and 108.
 Highway 92 in Nebraska between mile markers 446 and 466.

LAT...LON 4105 9652 4117 9669 4148 9642 4137 9612
TIME...MOT...LOC 2027Z 217DEG 54KT 4114 9659

MEAD

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
245 PM CST MON MAR 06 2017

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

0236 PM     HAIL             ONAWA                   42.03N 96.09W
03/06/2017  E0.88 INCH       MONONA             IA   LAW ENFORCEMENT

&&

SFORTIN

Special Weather Statement
National Weather Service Omaha/Valley Nebraska
250 PM CST MON MAR 6 2017

IAZ055-069-NEZ034-044-045-051>053-066-067-062115-
Pottawattamie IA-Harrison IA-Saunders NE-Cass NE-Sarpy NE-Burt NE-
Lancaster NE-Washington NE-Douglas NE-Dodge NE-
250 PM CST MON MAR 6 2017

...Significant Weather Advisory for NORTHWESTERN POTTAWATTAMIE...
SOUTHWESTERN HARRISON...NORTHWESTERN SARPY...SOUTHEASTERN BURT...
WASHINGTON...NORTHEASTERN LANCASTER...SOUTHEASTERN DODGE...DOUGLAS...
EASTERN SAUNDERS AND NORTHWESTERN CASS COUNTIES UNTIL 315 PM CST...

At 249 PM CST, Doppler radar was tracking a strong thunderstorm 5
miles northwest of Kennard, or 23 miles northwest of Omaha, moving
northeast at 55 mph. Other storms stretched southwest toward Lincoln,
also moving northeast at 55 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Western Omaha, northeastern Lincoln, Blair, Wahoo, Gretna, Waverly,
Missouri Valley, Ashland, Valley, Logan, Arlington, Yutan, Fort
Calhoun, Waterloo, Mead, Greenwood, Mondamin, Kennard, Modale and
Elkhorn.

This includes the following highways...
 Highway 275 in Nebraska between mile markers 157 and 167.
 Highway 30 in Iowa between mile markers 1 and 5.
 Highway 30 in Nebraska between mile markers 432 and 450.
 Highway 75 in Nebraska between mile markers 99 and 126.
 Highway 77 in Nebraska between mile markers 71 and 90, and between
mile markers 97 and 104.
 Highway 92 in Nebraska between mile markers 452 and 466.
 Interstate 29 between mile markers 71 and 92.
 Interstate 80 in Nebraska between mile markers 405 and 437.

A tornado watch remains in effect until 1000 PM CST for southwestern
Iowa.

LAT...LON 4081 9647 4095 9682 4179 9614 4171 9568
TIME...MOT...LOC 2049Z 231DEG 52KT 4154 9628

MEAD