Alert archive / Nebraska / Special Weather Statements in 2016

Special Weather Statement, NWS Omaha, NE

May 27, 2016Dodge County, Douglas County, Washington County, Nebraska

NWS Omaha, NE issued this special weather statement at May 27, 2016, 10:10 PM CDT for Dodge County, Douglas County, Washington County, Nebraska. It was in force for 35 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
May 27, 2016, 10:10 PM CDT (03:10 UTC)
Expired
May 27, 2016, 10:45 PM CDT
In force
35 min
Issued by
NWS Omaha, NE

Counties Dodge County, NE, Douglas County, NE, Washington County, NE

The radar

The Omaha radar (KOAX), 17 km from the middle of the area, began a volume at 03:10 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, 3.2 hours before the alert went out and 17 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 2016-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 250 joules per kilogram.LCLLFCEL10008507005003002001001 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 2016-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 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
250 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
1571 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

992 
WWUS83 KOAX 280310
SPSOAX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1010 PM CDT FRI MAY 27 2016
 
IAZ055-069-079-NEZ044-045-051>053-280345-
MILLS IA-HARRISON IA-POTTAWATTAMIE IA-DODGE NE-DOUGLAS NE-
WASHINGTON NE-SAUNDERS NE-SARPY NE-
1010 PM CDT FRI MAY 27 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN POTTAWATTAMIE...
NORTHWESTERN MILLS...SOUTHWESTERN HARRISON...DOUGLAS...DODGE...
WASHINGTON...NORTHEASTERN SAUNDERS AND NORTHEASTERN SARPY COUNTIES
UNTIL 1045 PM CDT...

AT 1010 PM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 6 MILES NORTH OF CEDAR
BLUFFS TO 4 MILES EAST OF MURRAY...AND MOVING NORTHEAST AT 45 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
OMAHA...COUNCIL BLUFFS...BELLEVUE...FREMONT...PAPILLION...LA VISTA...
BLAIR...RALSTON...GLENWOOD...VALLEY...ARLINGTON...NORTH BEND...
TREYNOR...FORT CALHOUN...SCRIBNER...WATERLOO...HOOPER...
CEDAR BLUFFS...NICKERSON AND KENNARD.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 275 IN NEBRASKA BETWEEN MILE MARKERS 132 AND 167.
 HIGHWAY 30 IN NEBRASKA BETWEEN MILE MARKERS 411 AND 447.
 HIGHWAY 34 IN IOWA BETWEEN MILE MARKERS 6 AND 9.
 HIGHWAY 75 IN NEBRASKA BETWEEN MILE MARKERS 79 AND 117.
 HIGHWAY 77 IN NEBRASKA BETWEEN MILEMARKERS 108 AND 132.
 INTERSTATE 29 BETWEEN MILE MARKERS 35 AND 68.
 INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 1 AND 14.
 INTERSTATE 80 IN NEBRASKA BETWEEN MILE MARKERS 443 AND 454.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO MINOR STREET FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH
FLOODED ROADWAYS.

&&

LAT...LON 4174 9660 4130 9549 4100 9573 4148 9687
TIME...MOT...LOC 0310Z 202DEG 38KT 4149 9664 4091 9585 

$$

DEWALD

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 7:15 PM CDTFlash Flood WarningOAXSaline, Seward3 hr
May 27, 8:05 PM CDTFlash Flood WatchOAXButler, Cass, Douglas, Gage, Johnson, Lancaster and 8 more4 hr
May 27, 8:49 PM CDTFlash Flood WarningOAXButler, Gage, Lancaster, Saline, Seward3 hr
May 27, 9:01 PM CDTSpecial Weather StatementOAXSaunders29 min
May 27, 9:08 PM CDTTornado WarningOAXLancaster, Saunders37 min
May 27, 9:33 PM CDTSevere Thunderstorm WarningOAXSaunders42 min
May 27, 9:53 PM CDTFlash Flood WarningOAXButler, Colfax, Lancaster, Platte, Saunders3 hr
May 28, 12:37 AM CDTAreal Flood AdvisoryOAXButler6 hr
May 28, 9:18 AM CDTRiver Flood WarningOAXSaline67 hr
May 28, 9:18 AM CDTRiver Flood WarningOAXSeward49 hr
May 28, 9:18 AM CDTRiver Flood WarningOAXSaline3 days
May 28, 12:52 PM CDTRiver Flood WarningOAXSaunders18 hr
May 28, 5:13 PM CDTAreal Flood WarningOAXSaline24 hr
May 28, 5:19 PM CDTAreal Flood WarningOAXJefferson24 hr
May 27, 10:41 PM CDTSpecial Weather StatementOAXHarrison, Pottawattamie34 min

Nearby

Special Weather Statements in Nebraska, 2016Every special weather statement in 2016

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.