Alert archive / Nebraska / River Flood Warnings in 2018
River Flood Warning 45, NWS Omaha, NE
NWS Omaha, NE issued this river flood warning at Sep 21, 2018, 10:06 AM CDT for Washington County, Nebraska; Harrison County, Iowa. It took effect at Sep 23, 2018, 4:36 AM CDT. It was in force for 5 days.
The area
The counties it named.
The facts
- Issued
- Sep 21, 2018, 10:06 AM CDT (15:06 UTC)
- In effect from
- Sep 23, 2018, 4:36 AM CDT
- Expired
- Sep 28, 2018, 10:00 AM CDT
- In force
- 5 days
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
- Flood severity
- Minor
Counties Harrison County, IA, Washington County, NE
The radar
The Omaha radar (KOAX), 43 km from the middle of the area, began a volume at 15:05 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 Missouri River near Blair (BLAN1).
- Action stage
- 23.5 ft
- Minor stage
- 26.5 ft
- Moderate stage
- 28.5 ft
- Major stage
- 33 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 06609100, 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 Sep 20, 6:10 PM CDT, 15 hours 56 minutes earlier.
Area forecast discussion, Sep 20, 6:10 PM CDT, 15 hours 56 minutes before
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</html>Hazardous weather outlook, Sep 20, 3:33 PM CDT, 18 hours 33 minutes before
Hazardous Weather Outlook National Weather Service Omaha/Valley NE 333 PM CDT Thu Sep 20 2018 IAZ043-055-056-069-079-080-090-091-NEZ015-018-032>034-042>045- 050>053-065>068-078-088>093-211045- Monona-Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont- Page-Thurston-Wayne-Stanton-Cuming-Burt-Platte-Colfax-Dodge- Washington-Butler-Saunders-Douglas-Sarpy-Seward-Lancaster-Cass- Otoe-Saline-Jefferson-Gage-Johnson-Nemaha-Pawnee-Richardson- 333 PM CDT Thu Sep 20 2018 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 Friday A band of strong to severe thunderstorms is expected to spread east across the area this afternoon through this evening, along and ahead of a cold front. The primary hazard with these storms is damaging winds, though some hail is also possible. Minor flooding will continue along the Missouri River upstream of Lewis and Clark Lake in Knox County and in the vicinity of Brownville. .DAYS TWO THROUGH SEVEN...Friday night through Thursday Minor flooding will continue along the Missouri River upstream of Lewis and Clark Lake in Knox County. Minor flooding along the Missouri River in the vicinity of Brownville should subside by Friday. .SPOTTER INFORMATION STATEMENT... Storm spotter activation may be needed on a localized basis late this afternoon and this evening. NEZ011-012-016-017-030-031-211045- Knox-Cedar-Antelope-Pierce-Boone-Madison- 333 PM CDT Thu Sep 20 2018 This Hazardous Weather Outlook is for portions of northeast Nebraska. .DAY ONE...Tonight and Friday Isolated strong storms are possible this afternoon into early evening. Gusty winds and some small hail are possible. Minor flooding will continue along the Missouri River upstream of Lewis and Clark Lake in Knox County and in the vicinity of Brownville. .DAYS TWO THROUGH SEVEN...Friday night through Thursday Minor flooding will continue along the Missouri River upstream of Lewis and Clark Lake in Knox County. .SPOTTER INFORMATION STATEMENT... Storm spotter activation will not be required through Friday.
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 20, 7:10 PM CDT | Severe Thunderstorm Warning | OAX | Jefferson, Saline | 35 min |
| Sep 20, 7:37 PM CDT | Severe Thunderstorm Warning | OAX | Gage, Jefferson, Lancaster, Saline, Seward | 23 min |
| Sep 20, 8:02 PM CDT | Severe Thunderstorm Warning | OAX | Cass, Gage, Johnson, Lancaster, Nemaha, Otoe and 1 more | 28 min |
| Sep 20, 8:24 PM CDT | Severe Thunderstorm Warning | OAX | Cass, Johnson, Nemaha, Otoe, Pawnee, Richardson and 2 more | 36 min |
| Sep 20, 9:41 PM CDT | Special Weather Statement | OAX | Richardson | 34 min |
| Sep 21, 10:06 AM CDT | River Flood Warning | OAX | Cass | 13 days |
| Sep 21, 10:06 AM CDT | River Flood Warning | OAX | Otoe | 40 days |
| Sep 21, 10:06 AM CDT | River Flood Warning | OAX | Richardson | 51 days |
| Sep 21, 10:25 AM CDT | River Flood Advisory | OAX | Douglas, Sarpy | 8 days |
| Sep 20, 7:14 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 31 min |
| Sep 20, 7:56 PM CDT | Special Weather Statement | OAX | Shelby | 34 min |
| Sep 20, 8:49 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 26 min |
Nearby
River Flood Warnings in Nebraska, 2018River Flood Warnings in Iowa, 2018Every river flood warning in 2018
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.