Alert archive / Nebraska / River Flood Warnings in 2011
River Flood Warning 23, NWS Omaha, NE
NWS Omaha, NE issued this river flood warning at May 21, 2011, 2:23 AM CDT for Saline County, Nebraska. It took effect at May 21, 2011, 5:38 AM CDT. It was in force for 29 hr.
The area
The counties it named.
The facts
- Issued
- May 21, 2011, 2:23 AM CDT (07:23 UTC)
- In effect from
- May 21, 2011, 5:38 AM CDT
- Expired
- May 22, 2011, 10:26 AM CDT
- In force
- 29 hr
- Issued by
- NWS Omaha, NE
- Flood severity
- Minor
County Saline County, NE
The radar
The Omaha radar (KOAX), 110 km from the middle of the area, began a volume at 07:23 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 Turkey Creek near Wilber (WLBN1).
- Action stage
- 11 ft
- Minor stage
- 12.5 ft
- Moderate stage
- 16 ft
- Major stage
- 21 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 06881200, 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 20, 3:47 PM CDT, 10 hours 36 minutes earlier.
Area forecast discussion, May 20, 3:47 PM CDT, 10 hours 36 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 347 PM CDT FRI MAY 20 2011 .SHORT TERM...TONIGHT THROUGH SUNDAY NIGHT. SURFACE HEATING CONTRIBUTING TO THUNDERSTORM DEVELOPMENT CNTRL KS/CNTRL NEB WITHIN AXIS OF DESTABILIZATION AND DEEP LYR MOISTURE CONVG. NARROW LINE OF ACTIVITY WAS MOVING NNE AND SHOULD BE OVER CWA WRN PERIPHERY NEXT COUPLE HOURS. OVERALL FCST IN GOOD SHAPE. EXPECT THUNDER ACTIVITY TO SPREAD EWD THRU THE CWA THIS EVENING. HAVE BACKED OFF POPS AFTER MIDNIGHT TONIGHT GIVEN DRY SLOT WEDGE COMING UP FROM THE SOUTH. IMPULSES ROTATING AROUND UPPER CLOSED LOW SITUATED OVER THE NRN/CNTRL PLAINS WILL CONTRIBUTE TO DESTABILIZATION SATURDAY AFTN WITH MAIN INSTABILITY AXIS SETTING UP FROM THE CWA SWD THRU ERN KS/WRN MO AHEAD OF AN APPROACHING COLD FRONT. DID NOTE THAT NAM A BIT MORE ROBUST THAN GFS WITH MOISTURE ADVECTION INTO THE REGION. AS OF NOW THINK THERE IS A DECENT CHANCE FOR SVR STORM DEVELOPMENT OVER THE SRN CWA WHERE NRN EDGE OF BEST DEEP LYR SHEAR/MUCAPES PHASE. COLD FRONT SHOULD CLEAR THE CWA QUICKLY SAT NIGHT...BUT LEAVE SMALL TOKEN POPS IN PLACE ERN AREAS IN CASE OF LINGERING ACTIVITY. ANOTHER COLDER AIRMASS SWEEPING IN SUNDAY NIGHT ASSOCIATED WITH VORT MAX CROSSING THE DAKOTAS INTO THE UPPER MIDWEST...AND SEEMS REASONABLE TO ADD SMALL POPS. .LONG TERM...MONDAY THROUGH FRIDAY. MODELS CONTINUE TO ADVERTISE SOMEWHAT COMPLICATED LARGE SCALE FLOW REGIME IN THE EXTENDED PDS WITH 3 NEARLY STATIONARY UPPER LEVEL LOWS SITUATED OVER...GULF OF AK/WRN CONUS/HUDSON BAY. HOWEVER FEATURE OF CONCERN FOR US IS SHORT WAVE TROF EJECTING FROM THE WRN STATES AND CROSSING THE CNTRL PLAINS. GFS/ECM SFC FEATURES IN POOR AGREEMENT WITH RESPECT TO ATTENDANT SFC LOW...BUT APPEARS THOUGH HPC GENERALLY PREFERRING ECM SOLUTION. POST-FRONTAL POPS TUESDAY THRU WED NIGHT WILL BE FOCUSED OVER THE SRN CWA. MOIST BNDRY LYR CONVG ZONE IS PROGGED TO EXTEND ACROSS KS/MO...BUT STOUT 305K UPGLIDE/MOIST ADV SHOULD BE ENOUGH TO PRODUCE SCATTERED PCPN WITHIN AXIS OF LOW CONDENSATION PRES DEFICITS. LIFT ENHANCED AS WELL WITH PASSING IMPULSES/INCREASING DPVA ASSOCIATED WITH APPROACHING UPPER TROF. DRY THEN THURSDAY AS LOW AMPLITUDE/SFC HIGH BUILD IN BEHIND EXITING COLD FRONT. HAVE DECIDED TO INCLUDE THUNDER CHANCES THURSDAY NIGHT/FRI WHEN COMBINATION OF STOUT UPPER DIVERGENCE/VORT LOBE MOVES ACROSS THE NRN PLAINS. BNDRY LYR-250MB DIFFERENTIAL DIVERGENCE IS QUITE STRONG....AND ECM QPF VALUES FROM DAKOTAS INTO ERN NEB/WRN IA REFLECTING THIS. OTHERWISE STILL EXPECTING BELOW NORM TEMPS THE END OF NEXT WEEK. DEE && .AVIATION... TAF SITES KOFK/KOMA/KLNK 18Z TAFS GENERALLY LOOKING AT A MIX OF MVFR AND IFR CONDITIONS AT ALL THREE TAF SITES UNTIL AROUND 10Z TO 12Z. MORE GENERAL RAIN SHOWERS WILL GIVE WAY TO THREAT OF THUNDERSTORM DEVELOPMENT BETWEEN 21Z AND 00Z AS THUNDERSTORMS ONCE AGAIN DEVELOP ACROSS PARTS OF CENTRAL KANSAS AND SOUTH CENTRAL NEBRASKA AND THEN MOVE NORTH NORTHEAST. EXPECT IFR CONDITIONS IN VICINITY OF ALL THUNDERSTORMS THAT DEVELOP ALONG WITH A THREAT OF LARGE HAIL. AFTER 12Z EXPECT CONDITIONS TO IMPROVE...AT LEAST TREND TOWARD...VFR THOUGH SOME VICINITY SHOWER ACTIVITY MAY REDEVELOP SATURDAY AFTERNOON. MEYER && .OAX WATCHES/WARNINGS/ADVISORIES... NE...NONE. IA...NONE. &&
Hazardous weather outlook, May 20, 9:35 PM CDT, 4 hours 48 minutes before
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</html>The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 8:41 PM CDT | Flash Flood Warning | OAX | Boone | 5 hr |
| May 21, 2:20 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Colfax, Dodge, Saunders | 40 min |
| May 21, 2:34 PM CDT | Tornado Warning | OAX | Butler, Colfax, Dodge, Saunders | 17 min |
| May 21, 2:56 PM CDT | Severe Thunderstorm Warning | OAX | Burt, Cuming, Thurston | 25 min |
| May 21, 4:55 PM CDT | Severe Thunderstorm Warning | OAX | Butler | 35 min |
| May 21, 5:03 PM CDT | Severe Thunderstorm Warning | OAX | Knox | 27 min |
| May 21, 5:21 PM CDT | Severe Thunderstorm Warning | OAX | Burt, Cuming, Dodge | 39 min |
| May 21, 5:27 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Colfax, Platte | 48 min |
| May 21, 5:54 PM CDT | Severe Thunderstorm Warning | OAX | Colfax, Platte, Stanton | 51 min |
| May 21, 6:04 PM CDT | Severe Thunderstorm Warning | OAX | Butler | 26 min |
| May 21, 6:20 PM CDT | Severe Thunderstorm Warning | OAX | Cuming, Thurston | 40 min |
| May 21, 6:21 PM CDT | Severe Thunderstorm Warning | OAX | Nemaha | 24 min |
| May 21, 6:26 PM CDT | Severe Thunderstorm Warning | OAX | Madison, Platte, Stanton | 49 min |
| May 21, 6:31 PM CDT | Tornado Warning | OAX | Butler | 29 min |
| May 21, 6:44 PM CDT | Severe Thunderstorm Warning | OAX | Cedar, Wayne | 33 min |
| May 21, 6:45 PM CDT | Severe Thunderstorm Warning | OAX | Cuming, Stanton, Wayne | 45 min |
| May 21, 6:50 PM CDT | Severe Thunderstorm Warning | OAX | Cass, Sarpy | 40 min |
| May 21, 6:51 PM CDT | Tornado Warning | OAX | Butler, Saunders | 24 min |
| May 21, 6:57 PM CDT | Flash Flood Warning | OAX | Butler | 2 hr |
| May 21, 6:48 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 42 min |
Nearby
River Flood Warnings in Nebraska, 2011Every river flood warning in 2011
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.