Alert archive / Nebraska / River Flood Warnings in 2014

River Flood Warning 4, NWS Omaha, NE

May 11, 2014Saunders County, Nebraska

NWS Omaha, NE issued this river flood warning at May 11, 2014, 8:15 PM CDT for Saunders County, Nebraska. It took effect at May 12, 2014, 7:45 AM CDT. It was in force for 23 hr.

The area

The counties it named.

The facts

Issued: May 11, 2014, 8:15 PM CDT (01:15 UTC)
In effect from: May 12, 2014, 7:45 AM CDT
Expired: May 13, 2014, 7:10 AM CDT
In force: 23 hr
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Flood severity: Minor

County Saunders County, NE

The radar

The Omaha radar (KOAX), 25 km from the middle of the area, began a volume at 01:15 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 river

Written for the forecast point Wahoo Creek at Ithaca (ITHN1). The gauge peaked at 19.87 ft at May 12, 2014, 11:00 AM CDT.

Action stage: 17 ft
Minor stage: 19 ft
Moderate stage: 20.5 ft
Major stage: 23 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06804000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning 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 river flood warning went out at May 11, 6:55 PM CDT, 1 hour 20 minutes earlier.

Area forecast discussion, May 11, 6:55 PM CDT, 1 hour 20 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
655 PM CDT SUN MAY 11 2014

.SHORT TERM...(TONIGHT THROUGH WEDNESDAY)
ISSUED AT 306 PM CDT SUN MAY 11 2014

OBVIOUS NEAR TERM CONCERN IS POTENTIAL SVR WX OUTBREAK THIS AFTN AND
EVENING. CURRENTLY...REGIONAL OBS WERE CLEARLY SHOWING A VERY
INTENSE...NEARLY STAGNANT..BAROCLINIC ZONE PARALLEL TO AN INVERTED
TROF EXTENDING ROUGHLY FROM ERN IA TO WRN KS. ENVIRONMENT JUST SOUTH
OF THE BNDRY CONTINUING TO DESTABILIZED IN RESPONSE TO DAYTIME HEATING
ALONG WITH STOUT LLVL MOISTURE TRANSPORT UNDERWAY...PWS VALUES AROUND
1.5" SO FAR....PUSHING SBCAPE TO 4000J/KG. WITH QUITE INTENSE EFF
SRH IN PLACE AS WELL...ELEMENTS OVERLAPPING FOR POSSIBLE TORNADIC
SUPERCELL DEVELOPMENT APPEAR TO FOCUSED VERY CLOSE TO THE SRN CWA.

JUST A MATTER OF TIME NOW FOR CONVECTION TO FIRE FROM ABOUT CNTRL KS
TO NERN NEB ALONG SFC BNDRY. RAP13 ADVERTISING 0-1KM EFF SRH/MEAN
LYR LCL/EXTREME INSTABILITY WILL REMAIN FAVORABLE FOR TOR
DEVELOPMENT THRU AT LEAST EARLY THIS EVENING. ALSO...GIVEN HIGH
ENVIRONMENTAL MOISTURE CONTENT/PCPN EFFICIENCY...IT IS QUITE
PROBABLE OCCASIONAL PDS OF HVY RAIN SHOWERS WILL RESULT IN AREAS OF
FLASH FLOODING THRU TONIGHT. THUS IN ADDITION TO TOR WATCH...HAVE
OPTED TO ISSUE FLASH FLOOD WATCH OVER MOST OF THE CWA AS WELL. PCPN
ACTIVITY SHOULD GRADUALLY COME TO AN END THEN BY EARLY MON EVENING.

DRY AND COOL THEN TUESDAY AND WEDNESDAY.

.LONG TERM...(WEDNESDAY NIGHT THROUGH SUNDAY)
ISSUED AT 306 PM CDT SUN MAY 11 2014

GOING FCST IN PRETTY GOOD SHAPE. ONLY SIGNIFICANT CHANGE MADE WAS
REMOVING POPS ON THURSDAY AS MODELS ARE IN AGREEMENT FOCUS FOR PCPN
DEVELOPMENT WILL BE WELL WEST OF THE CWA. OTHERWISE...COOL AIR
MASS/BELOW NORM TEMPS SHOULD PREVAIL THRU THE EXTENDED PDS WITH
LARGE/DEEP UPPER TROF PRETTY MUCH THE DOMINATE FEATURE OVER THE
CONUS.

&&

.AVIATION...(00Z TAFS FOR KOFK...KLNK AND KOMA.)
ISSUED AT 644 PM CDT SUN MAY 11 2014

LINE OF STRONG/SEVERE TSRA CURRENTLY PUSHING EWD THRU ERN NEB
ALONG A SLOW MOVING COLD FRONT. EXPECT THREAT FOR STRONG/SVR TSRA
TO CONTINUE THRU REST OF THIS EVENING. AFTER MIDNIGHT...HAVE
MVFR/IFR CONDITIONS WITH TEMPO GROUPS FOR TSRA. BY 12Z MON...IFR
CONDITIONS ALONG WITH SHRA ACTIVITY SHOULD PREVAIL UNTIL LATE
MORNING. EXPECT MVFR CONDITIONS PREVAILING THEN THRU MON AFTN.

&&

.OAX WATCHES/WARNINGS/ADVISORIES...
NE...FLASH FLOOD WATCH THROUGH MONDAY MORNING FOR NEZ015-032>034-
     042>045-050>053-065>068-078-088>093.

IA...FLASH FLOOD WATCH THROUGH MONDAY MORNING FOR IAZ043-055-056-069-
     079-080-090-091.

&&

SHORT TERM...DEE
LONG TERM...DEE
AVIATION...DEE

Hazardous weather outlook, May 11, 4:29 PM CDT, 3 hours 46 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
429 PM CDT SUN MAY 11 2014

IAZ043-055-056-069-079-080-090-091-NEZ015-018-030>034-042>045-
050>053-065>068-078-088>093-121130-
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT-
PAGE-THURSTON-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-
429 PM CDT SUN MAY 11 2014

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

.DAY ONE...TONIGHT AND MONDAY

SEVERE THUNDERSTORMS ALONG WITH AREAS OF FLASH FLOODING ARE LIKELY
THIS EVENING.

SEVERE STORM ARE LIKELY DURING THE LATE AFTERNOON AND EARLY
EVENING HOURS. WITH STOUT ENVIRONMENTAL SHEAR IN PLACE...SOME
STORMS WILL BE CAPABLE OF PRODUCING TORNADOES...ALONG WITH VERY
LARGE HAIL AND DAMAGING WINDS.

ALSO...GIVEN THE HIGH ENVIRONMENTAL MOISTURE CONTENT OVER THE
REGION...IT IS QUITE PROBABLE OCCASIONAL PERIODS OF HEAVY RAIN
SHOWERS WILL RESULT IN AREAS OF FLASH FLOODING INTO EARLY MONDAY
MORNING.

.DAYS TWO THROUGH SEVEN...MONDAY NIGHT THROUGH SATURDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS LIKELY LATE THIS AFTERNOON AND EARLY
EVENING. VOLUNTEER SPOTTERS ACROSS SOUTHEAST NEBRASKA AND WESTERN
IOWA SHOULD BE READY FOR IMMEDIATE DEPLOYMENT.

ALSO...ANY REPORTS OF FLASH FLOODING WOULD BE APPRECIATED.

NEZ011-012-016-017-121130-
KNOX-CEDAR-ANTELOPE-PIERCE-
429 PM CDT SUN MAY 11 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
NEBRASKA.

.DAY ONE...TONIGHT AND MONDAY

OCCASIONAL THUNDERSTORMS WILL BE POSSIBLE TONIGHT...BUT THE MAIN
THREAT OF SEVERE STORMS IS FARTHER TO THE SOUTH AND EAST.

.DAYS TWO THROUGH SEVEN...MONDAY NIGHT THROUGH SATURDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH MONDAY.

In the hours before

Local storm report, May 11, 7:53 PM CDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
753 PM CDT SUN MAY 11 2014

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

0658 PM     TORNADO          1 SE DAYKIN             40.31N 97.28W
05/11/2014                   JEFFERSON          NE   EMERGENCY MNGR

            CENTER PIVOTS FLIPPED AND GRAIN BINS DAMAGED.

0658 PM     TORNADO          1 SE DAYKIN             40.31N 97.28W
05/11/2014                   JEFFERSON          NE   EMERGENCY MNGR

            CENTER PIVOTS FLIPPED AND GRAIN BINS DAMAGED.

&&

MEYER

Local storm report, May 11, 7:57 PM CDT, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
757 PM CDT SUN MAY 11 2014

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

0751 PM     TSTM WND GST     OMAHA                   41.26N 96.01W
05/11/2014  M82 MPH          DOUGLAS            NE   ASOS

            OMAHA EPPLEY AIRFIELD ASOS.

&&

MAYES

Special weather statement, May 11, 7:59 PM CDT, 16 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
759 PM CDT SUN MAY 11 2014

IAZ043-NEZ015-034-120115-
MONONA IA-BURT NE-THURSTON NE-
759 PM CDT SUN MAY 11 2014

...SIGNIFICANT WEATHER ADVISORY FOR MONONA...NORTHERN BURT AND
EASTERN THURSTON COUNTIES UNTIL 815 PM CDT...

AT 759 PM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM LYONS TO NEAR UTE...AND
MOVING NORTHEAST AT 50 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
ONAWA...LYONS...WALTHILL...WINNEBAGO...WHITING...DECATUR...UTE...
MOORHEAD...MACY...MAPLETON...BLENCOE...SOLDIER...ROSALIE...CASTANA...
TURIN...RODNEY...LEWIS AND CLARK STATE PARK AND KENNEBEC.

LAT...LON 4189 9655 4228 9649 4227 9635 4226 9633
      4223 9632 4222 9633 4221 9567 4190 9567
TIME...MOT...LOC 0059Z 216DEG 44KT 4193 9644 4204 9581

BOUSTEAD/MAYES

Local storm report, May 11, 8:00 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
800 PM CDT SUN MAY 11 2014

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

0710 PM     TSTM WND DMG     6 S VALLEY              41.23N 96.35W
05/11/2014                   DOUGLAS            NE   TRAINED SPOTTER

            TREES DOWN...PART OF SIDING RIPPED OFF HOUSE...TIME
            ESTIMATED.

&&

MILLER

Local storm report, May 11, 8:02 PM CDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
802 PM CDT SUN MAY 11 2014

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

0730 PM     TSTM WND GST     ELKHORN                 41.28N 96.24W
05/11/2014  E70 MPH          DOUGLAS            NE   AMATEUR RADIO

            LARGE TREE LIMBS AND BRANCHES DOWN GREATER THAN 2 INCHES
            IN DIAMETER.

&&

MEYER

Local storm report, May 11, 8:12 PM CDT, 3 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 7:00 PM CDT	Tornado Warning	OAX	Douglas, Sarpy, Saunders	30 min
May 11, 7:05 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Lancaster, Otoe	40 min
May 11, 7:17 PM CDT	Severe Thunderstorm Warning	OAX	Douglas, Sarpy, Washington	43 min
May 11, 7:21 PM CDT	Flash Flood Warning	OAX	Saunders	3 hr
May 11, 7:26 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Lancaster, Otoe, Saline	34 min
May 11, 7:35 PM CDT	Flash Flood Warning	OAX	Douglas, Sarpy	3 hr
May 11, 7:44 PM CDT	Severe Thunderstorm Warning	OAX	Jefferson, Saline	31 min
May 11, 7:58 PM CDT	River Flood Warning	OAX	Seward	60 hr
May 11, 7:58 PM CDT	River Flood Warning	OAX	Saline	4 days
May 11, 8:03 PM CDT	Flash Flood Warning	OAX	Lancaster	3 hr
May 11, 8:12 PM CDT	Severe Thunderstorm Warning	OAX	Gage, Jefferson, Lancaster, Saline, Seward	33 min
May 11, 8:15 PM CDT	River Flood Advisory	OAX	Saunders	25 hr
May 11, 8:18 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Otoe	42 min
May 11, 8:44 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Gage, Johnson, Lancaster, Otoe	31 min
May 11, 9:04 PM CDT	Severe Thunderstorm Warning	OAX	Cass	26 min
May 11, 9:13 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Otoe	32 min
May 11, 9:22 PM CDT	Areal Flood Warning	OAX	Lancaster	12 hr
May 11, 9:55 PM CDT	Special Weather Statement	OAX	Otoe	35 min
May 11, 11:22 PM CDT	Areal Flood Warning	OAX	Saunders	24 hr
May 12, 8:15 AM CDT	Areal Flood Warning	OAX	Cass, Saunders	12 hr
May 12, 11:24 AM CDT	River Flood Warning	OAX	Seward	20 hr
May 11, 7:47 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Mills, Pottawattamie	43 min
May 11, 7:49 PM CDT	Flash Flood Warning	OAX	Pottawattamie	5 hr
May 11, 7:59 PM CDT	Special Weather Statement	OAX	Monona	16 min
May 11, 8:08 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	52 min
May 11, 9:09 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery, Pottawattamie	36 min
May 11, 9:44 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Mills, Montgomery, Page	46 min
May 11, 10:27 PM CDT	Tornado Warning	OAX	Montgomery	33 min
May 11, 11:12 PM CDT	Special Weather Statement	OAX	Montgomery, Page	48 min

Nearby

River Flood Warnings in Nebraska, 2014 Every river flood warning in 2014

Sources

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