Alert archive / Nebraska / Special Weather Statements in 2015

Special Weather Statement, NWS Omaha, NE

August 2, 2015Dodge County, Nebraska

NWS Omaha, NE issued this special weather statement at Aug 2, 2015, 2:39 AM CDT for Dodge County, Nebraska. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 2, 2015, 2:39 AM CDT (07:39 UTC)
Expired: Aug 2, 2015, 3:30 AM CDT
In force: 51 min
Issued by: NWS Omaha, NE

County Dodge County, NE

The radar

The Omaha radar (KOAX), 45 km from the middle of the area, began a volume at 07:41 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 7.7 hours before the alert went out and 333 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 382 J/kg
Mixed-layer CIN: -237 J/kg
Mixed-layer LCL: 1768 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 174 m²/s²
0-3 km storm-relative helicity: 576 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.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 1, 11:53 PM CDT, 2 hours 46 minutes earlier.

Area forecast discussion, Aug 1, 11:53 PM CDT, 2 hours 46 minutes before

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Hazardous weather outlook, Aug 1, 4:30 PM CDT, 10 hours 9 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
430 PM CDT SAT AUG 1 2015

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-021130-
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT-
PAGE-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-NEMAHA-PAWNEE-RICHARDSON-
430 PM CDT SAT AUG 1 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MOST OF EASTERN NEBRASKA AND
PARTS OF SOUTHWEST IOWA.

.DAY ONE...TONIGHT AND SUNDAY

THERE IS A CHANCE OF THUNDERSTORMS THROUGH THE OVERNIGHT...BUT
ORGANIZED SEVERE WEATHER IS NOT EXPECTED. THERE IS ALSO A SMALL
CHANCE OF STORMS SUNDAY...MOSTLY IN THE AFTERNOON AND MAINLY
ACROSS SOUTHEAST NEBRASKA INTO SOUTHWEST IOWA. A FEW STRONG STORMS
ARE POSSIBLE.

.DAYS TWO THROUGH SEVEN...SUNDAY NIGHT THROUGH SATURDAY

THERE IS A CHANCE OF THUNDERSTORMS MOST OF NEXT WEEK FROM MONDAY
ONWARD...AS SEVERAL WEATHER IMPULSES MOVE ACROSS THE REGION. LATER
OUTLOOKS WILL ADDRESS THE SEVERE WEATHER POTENTIAL IN THOSE
PERIODS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED TO BE NEEDED TONIGHT OR SUNDAY.

In the hours before

Local storm report, Aug 1, 10:12 PM CDT, 4 hours 27 minutes before

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Special weather statement, Aug 2, 2:39 AM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
239 AM CDT SUN AUG 2 2015

NEZ033-034-043>045-020830-
DODGE NE-COLFAX NE-WASHINGTON NE-BURT NE-CUMING NE-
239 AM CDT SUN AUG 2 2015

...SIGNIFICANT WEATHER ADVISORY FOR DODGE...NORTHWESTERN
WASHINGTON...SOUTHWESTERN CUMING...NORTHEASTERN COLFAX AND SOUTH
CENTRAL BURT COUNTIES UNTIL 330 AM CDT...

AT 238 AM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
DODGE...OR 28 MILES NORTHEAST OF COLUMBUS...MOVING EAST AT 45 MPH.

NICKEL SIZE HAIL AND WINDS IN EXCESS OF 30 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
SCRIBNER...HOOPER...DODGE...HOWELLS...NICKERSON...SNYDER...WINSLOW...
7 MILES NORTH OF NORTH BEND AND DEAD TIMBER STATE RECREATION AREA.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 275 IN NEBRASKA BETWEEN MILE MARKERS 124 AND 140.
 HIGHWAY 77 IN NEBRASKA BETWEEN MILEMARKERS 120 AND 132.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4177 9699 4171 9632 4161 9629 4147 9638
      4159 9702
TIME...MOT...LOC 0738Z 278DEG 37KT 4167 9690

KG

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 2, 2:50 AM CDT	Severe Thunderstorm Warning	OAX	Burt, Dodge, Washington	25 min
Aug 2, 6:31 PM CDT	Severe Thunderstorm Warning	OAX	Butler	59 min
Aug 2, 3:39 AM CDT	Special Weather Statement	OAX	Harrison	51 min
Aug 2, 4:04 AM CDT	Severe Thunderstorm Warning	OAX	Harrison, Shelby	26 min
Aug 2, 4:26 AM CDT	Severe Thunderstorm Warning	OAX	Shelby	34 min
Aug 2, 4:30 AM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	45 min
Aug 2, 8:09 AM CDT	Special Weather Statement	OAX	Fremont	51 min
Aug 2, 6:11 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery	49 min
Aug 2, 6:25 PM CDT	Special Weather Statement	OAX	Mills	50 min
Aug 2, 6:29 PM CDT	Severe Thunderstorm Warning	OAX	Mills	61 min

Nearby

Special Weather Statements in Nebraska, 2015 Every special weather statement in 2015

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.