Alert archive / Nebraska / Wind Advisories in 2012

Wind Advisory 9, NWS Omaha, NE

April 27, 201218 counties in Nebraska; 8 counties in Iowa

NWS Omaha, NE issued this wind advisory at Apr 27, 2012, 10:42 AM CDT for 18 counties in Nebraska; 8 counties in Iowa. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Apr 27, 2012, 10:42 AM CDT (15:42 UTC)
Expired
Apr 27, 2012, 6:00 PM CDT
In force
7 hr
Issued by
NWS Omaha, NE
All 26 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, Cass County, NE, Cedar County, NE, Cuming County, NE, Dodge County, NE, Douglas County, NE, Gage County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Sarpy County, NE, Saunders County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE

The radar

The Omaha radar (KOAX), 23 km from the middle of the area, began a volume at 15:45 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 12:00Z, 3.7 hours before the alert went out and 23 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 2012-04-27Temperature 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 2012-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 221 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
1405 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
221 m²/s²
0-3 km storm-relative helicity
482 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

377 
WWUS73 KOAX 271542
NPWOAX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1042 AM CDT FRI APR 27 2012


IAZ043-055-056-069-079-080-090-091-NEZ012-015-018-033-034-044-045-
051>053-066>068-089>093-272200-
/O.NEW.KOAX.WI.Y.0009.120427T1542Z-120427T2200Z/
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT-
PAGE-CEDAR-THURSTON-WAYNE-CUMING-BURT-DODGE-WASHINGTON-SAUNDERS-
DOUGLAS-SARPY-LANCASTER-CASS-OTOE-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...WAYNE...WEST POINT...
WISNER...TEKAMAH...OAKLAND...LYONS...DECATUR...FREMONT...BLAIR...
WAHOO...ASHLAND...YUTAN...OMAHA...BELLEVUE...PAPILLION...
LA VISTA...LINCOLN...PLATTSMOUTH...NEBRASKA CITY...BEATRICE...
TECUMSEH...STERLING...AUBURN...PAWNEE CITY...TABLE ROCK...
FALLS CITY
1042 AM CDT FRI APR 27 2012

...WIND ADVISORY IN EFFECT UNTIL 5 PM CDT THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN OMAHA/VALLEY HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 5 PM CDT THIS AFTERNOON. 

* TIMING...GUSTY WINDS WILL PERSIST THROUGH THIS AFTERNOON.

* WINDS...SOUTHEAST WIND GUSTS AROUND 45 MPH EXPECTED.
 
* IMPACTS...WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT FOR LIGHT
  WEIGHT AND HIGH PROFILE VEHICLES...AND ESPECIALLY MOTORCYCLES.
  EXTRA CAUTION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS BETWEEN 30 TO
39 MPH OR GUSTS BETWEEN 45 TO 57 MPH ARE EXPECTED. 

&&

$$
2 follow-up statements
131 
WWUS73 KOAX 271953
NPWOAX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
253 PM CDT FRI APR 27 2012

...WINDY THROUGH LATE AFTERNOON...

.GUSTY WINDS ASSOCIATED WITH A STRONG LOW PRESSURE SYSTEM OVER
KANSAS SHOULD CONTINUE THROUGH LATE AFTERNOON.

IAZ043-055-056-069-079-080-090-091-NEZ012-015-018-033-034-044-045-
051>053-066>068-089>093-272300-
/O.EXT.KOAX.WI.Y.0009.000000T0000Z-120427T2300Z/
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT-
PAGE-CEDAR-THURSTON-WAYNE-CUMING-BURT-DODGE-WASHINGTON-SAUNDERS-
DOUGLAS-SARPY-LANCASTER-CASS-OTOE-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...WAYNE...WEST POINT...
WISNER...TEKAMAH...OAKLAND...LYONS...DECATUR...FREMONT...BLAIR...
WAHOO...ASHLAND...YUTAN...OMAHA...BELLEVUE...PAPILLION...
LA VISTA...LINCOLN...PLATTSMOUTH...NEBRASKA CITY...BEATRICE...
TECUMSEH...STERLING...AUBURN...PAWNEE CITY...TABLE ROCK...
FALLS CITY
253 PM CDT FRI APR 27 2012

...WIND ADVISORY NOW IN EFFECT UNTIL 6 PM CDT THIS EVENING...

* TIMING...GUSTY WINDS WILL PERSIST THROUGH THIS AFTERNOON.

* WINDS...EAST OR SOUTHEAST WIND FROM 25 TO 35 MPH WITH GUSTS TO
  OVER 45 MPH ARE EXPECTED.

* IMPACTS...WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT FOR 
  LIGHT WEIGHT AND HIGH PROFILE VEHICLES...AND ESPECIALLY 
  MOTORCYCLES. EXTRA CAUTION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS BETWEEN 30 TO
39 MPH OR GUSTS BETWEEN 45 TO 57 MPH ARE EXPECTED.

&&

$$
874 
WWUS73 KOAX 272303
NPWOAX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
603 PM CDT FRI APR 27 2012


IAZ043-055-056-069-079-080-090-091-NEZ012-015-018-033-034-044-045-
051>053-066>068-089>093-280015-
/O.EXP.KOAX.WI.Y.0009.000000T0000Z-120427T2300Z/
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT-
PAGE-CEDAR-THURSTON-WAYNE-CUMING-BURT-DODGE-WASHINGTON-SAUNDERS-
DOUGLAS-SARPY-LANCASTER-CASS-OTOE-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...WAYNE...WEST POINT...
WISNER...TEKAMAH...OAKLAND...LYONS...DECATUR...FREMONT...BLAIR...
WAHOO...ASHLAND...YUTAN...OMAHA...BELLEVUE...PAPILLION...
LA VISTA...LINCOLN...PLATTSMOUTH...NEBRASKA CITY...BEATRICE...
TECUMSEH...STERLING...AUBURN...PAWNEE CITY...TABLE ROCK...
FALLS CITY
603 PM CDT FRI APR 27 2012

...WIND ADVISORY HAS EXPIRED...

ALTHOUGH THE WIND ADVISORY HAS EXPIRED...EAST TO SOUTHEAST WINDS
OF 20 TO 35 MPH WILL CONTINUE OVER MUCH OF THE AREA THROUGH 8 PM.

$$
CHERMOK

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 2:36 PM CDTSpecial Weather StatementOAXCass, Colfax, Sarpy, Saunders54 min
Apr 27, 2:57 PM CDTSpecial Weather StatementOAXBurt, Dodge, Douglas, Washington63 min
Apr 27, 4:25 PM CDTSpecial Weather StatementOAXGage, Jefferson, Saline65 min
Apr 27, 5:12 PM CDTSpecial Weather StatementOAXMonona, Shelby33 min

Nearby

Wind Advisories in Nebraska, 2012Wind Advisories in Iowa, 2012Every wind advisory in 2012

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.