Alert archive / Nebraska / Wind Advisories in 2018

Wind Advisory 2, NWS Omaha, NE

February 18, 201827 counties in Nebraska; 8 counties in Iowa

NWS Omaha, NE issued this wind advisory at Feb 18, 2018, 3:36 AM CST for 27 counties in Nebraska; 8 counties in Iowa. It took effect at Feb 18, 2018, 9:00 AM CST. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Feb 18, 2018, 3:36 AM CST (09:36 UTC)
In effect from
Feb 18, 2018, 9:00 AM CST
Expired
Feb 18, 2018, 3:00 PM CST
In force
6 hr
Issued by
NWS Omaha, NE
All 35 counties

Fremont County, IA, Harrison County, IA, Mills County, IA, Monona County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Shelby County, IA, Burt County, NE, Butler County, NE, Cass County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Douglas County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Madison County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Pierce County, NE, Platte County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Stanton County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE

The radar

The Omaha radar (KOAX), 10 km from the middle of the area, began a volume at 09:38 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 9.6 hours before the alert went out and 10 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 2018-02-18Temperature 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 00:00Z on 2018-02-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 square meters per square second.1939587897117Sfc1 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
1321 m above ground
0-6 km bulk shear
81 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
202 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

028 
WWUS73 KOAX 180936
NPWOAX

URGENT - WEATHER MESSAGE
National Weather Service Omaha/Valley NE
336 AM CST Sun Feb 18 2018

...Strong Southerly Winds Expected Today...

.Southerly winds will increase this morning to 25 to 35 mph. Wind
gusts could range up to 55 mph.

IAZ055-056-069-079-080-090-091-NEZ045-050>053-065>068-078-088>093-
181745-
/O.NEW.KOAX.WI.Y.0002.180218T1500Z-180218T2100Z/
Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont-Page-
Washington-Butler-Saunders-Douglas-Sarpy-Seward-Lancaster-Cass-
Otoe-Saline-Jefferson-Gage-Johnson-Nemaha-Pawnee-Richardson-
Including the cities of Missouri Valley, Woodbine, Logan, Dunlap,
Harlan, Council Bluffs, Glenwood, Red Oak, Sidney, Hamburg, 
Tabor, Farragut, Clarinda, Shenandoah, Blair, David City, Wahoo, 
Ashland, Yutan, Omaha, Bellevue, Papillion, La Vista, Seward, 
Milford, Lincoln, Plattsmouth, Nebraska City, Crete, Wilber, 
Fairbury, Beatrice, Tecumseh, Sterling, Auburn, Pawnee City, 
Table Rock, and Falls City
336 AM CST Sun Feb 18 2018

...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 3 PM CST
THIS AFTERNOON...

The National Weather Service in Omaha/Valley has issued a Wind
Advisory, which is in effect from 9 AM this morning to 3 PM CST
this afternoon. 

* TIMING...Gusty winds will increase quickly this morning and
  dissipate this afternoon

* WINDS...Southerly increasing to 25 to 35 mph, with gusts up to
  55 mph. 
  
* IMPACTS...Strong wind gusts will make driving difficult,
  especially for high profile vehicles. Loose objects will be
  blown around. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 30 to 39 mph are expected for
one hour or longer, or winds of 45 to 57 mph for any duration.
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

DeWald
2 follow-up statements
703 
WWUS73 KOAX 181531
NPWOAX

URGENT - WEATHER MESSAGE
National Weather Service Omaha/Valley NE
931 AM CST Sun Feb 18 2018

...Strong Southerly Winds Expected Today...

.Southerly winds will increase this morning to 25 to 35 mph. Wind
gusts could range up to 55 mph.

IAZ043-NEZ012-015-017-018-031>034-042>044-182100-
/O.EXA.KOAX.WI.Y.0002.000000T0000Z-180218T2100Z/
Monona-Cedar-Thurston-Pierce-Wayne-Madison-Stanton-Cuming-Burt-
Platte-Colfax-Dodge-
Including the cities of Onawa, Mapleton, Hartington, Laurel, 
Randolph, Coleridge, Pender, Macy, Walthill, Winnebago, Pierce, 
Plainview, Osmond, Wayne, Norfolk, Stanton, West Point, Wisner, 
Tekamah, Oakland, Lyons, Decatur, Columbus, Schuyler, and Fremont
931 AM CST Sun Feb 18 2018

...WIND ADVISORY IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...

The National Weather Service in Omaha/Valley has issued a Wind
Advisory, which is in effect until 3 PM CST this afternoon. 

* TIMING...Gusty winds are expected to continue before dissipating
  early this afternoon
 
* WINDS...Southerly increasing to 25 to 35 mph, with gusts up to 
  55 mph. 

* IMPACTS...Strong wind gusts will make driving difficult, 
  especially for high profile vehicles. Loose objects will be 
  blown around. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 30 to 39 mph are expected for
one hour or longer, or winds of 45 to 57 mph for any duration.
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

IAZ055-056-069-079-080-090-091-NEZ045-050>053-065>068-078-088>093-
182100-
/O.CON.KOAX.WI.Y.0002.000000T0000Z-180218T2100Z/
Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont-Page-
Washington-Butler-Saunders-Douglas-Sarpy-Seward-Lancaster-Cass-
Otoe-Saline-Jefferson-Gage-Johnson-Nemaha-Pawnee-Richardson-
Including the cities of Missouri Valley, Woodbine, Logan, Dunlap,
Harlan, Council Bluffs, Glenwood, Red Oak, Sidney, Hamburg, 
Tabor, Farragut, Clarinda, Shenandoah, Blair, David City, Wahoo, 
Ashland, Yutan, Omaha, Bellevue, Papillion, La Vista, Seward, 
Milford, Lincoln, Plattsmouth, Nebraska City, Crete, Wilber, 
Fairbury, Beatrice, Tecumseh, Sterling, Auburn, Pawnee City, 
Table Rock, and Falls City
931 AM CST Sun Feb 18 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...

* TIMING...Gusty winds continue before dissipating this afternoon
  
* WINDS...Southerly increasing to 25 to 35 mph, with gusts up to 
  55 mph. 

* IMPACTS...Strong wind gusts will make driving difficult, 
  especially for high profile vehicles. Loose objects will be 
  blown around. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 30 to 39 mph are expected for
one hour or longer, or winds of 45 to 57 mph for any duration.
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$
041 
WWUS73 KOAX 182058
NPWOAX

URGENT - WEATHER MESSAGE
National Weather Service Omaha/Valley NE
258 PM CST Sun Feb 18 2018

IAZ043-055-056-069-079-080-090-091-NEZ012-015-017-018-031>034-
042>045-050>053-065>068-078-088>093-182200-
/O.EXP.KOAX.WI.Y.0002.000000T0000Z-180218T2100Z/
Monona-Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont-
Page-Cedar-Thurston-Pierce-Wayne-Madison-Stanton-Cuming-Burt-
Platte-Colfax-Dodge-Washington-Butler-Saunders-Douglas-Sarpy-
Seward-Lancaster-Cass-Otoe-Saline-Jefferson-Gage-Johnson-Nemaha-
Pawnee-Richardson-
Including the cities of Onawa, Mapleton, Missouri Valley, 
Woodbine, Logan, Dunlap, Harlan, Council Bluffs, Glenwood, 
Red Oak, Sidney, Hamburg, Tabor, Farragut, Clarinda, Shenandoah, 
Hartington, Laurel, Randolph, Coleridge, Pender, Macy, Walthill, 
Winnebago, Pierce, Plainview, Osmond, Wayne, Norfolk, Stanton, 
West Point, Wisner, Tekamah, Oakland, Lyons, Decatur, Columbus, 
Schuyler, Fremont, Blair, David City, Wahoo, Ashland, Yutan, 
Omaha, Bellevue, Papillion, La Vista, Seward, Milford, Lincoln, 
Plattsmouth, Nebraska City, Crete, Wilber, Fairbury, Beatrice, 
Tecumseh, Sterling, Auburn, Pawnee City, Table Rock, 
and Falls City
258 PM CST Sun Feb 18 2018

...WIND ADVISORY WILL EXPIRE AT 3 PM CST THIS AFTERNOON...

Although winds continue to gust to near 40 mph across the region,
the wind will continue to diminish over the next couple hours.
Therefore the wind advisory will be allowed to expire. 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 18, 3:43 AM CSTWinter Weather AdvisoryOAXBoone, Burt, Butler, Cass, Cedar, Colfax and 16 more31 hr

Nearby

Wind Advisories in Nebraska, 2018Wind Advisories in Iowa, 2018Every wind advisory in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.