Alert archive / Nebraska / Flash Flood Warnings in 2022
Flash Flood Warning 5, NWS Omaha, NE
NWS Omaha, NE issued this flash flood warning at Jun 5, 2022, 5:07 PM CDT for Douglas County, Nebraska. It was in force for 109 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 5, 2022, 5:07 PM CDT (22:07 UTC)
- Expired
- Jun 5, 2022, 6:56 PM CDT
- In force
- 109 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
- Flood severity
- None
County Douglas County, NE
The radar
The Omaha radar (KOAX), 18 km from the middle of the area, began a volume at 22:09 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 12:00Z, 10.1 hours before the alert went out and 18 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.
- Mixed-layer CAPE
- 164 J/kg
- Mixed-layer CIN
- -202 J/kg
- Mixed-layer LCL
- 961 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
What forecasters said that day
The local office's own words before this flash 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 flash flood warning went out at Jun 5, 2:59 PM CDT, 2 hours 8 minutes earlier.
Area forecast discussion, Jun 5, 2:59 PM CDT, 2 hours 8 minutes before
Area Forecast Discussion National Weather Service Omaha/Valley NE 259 PM CDT Sun Jun 5 2022 ...Updated Forecast Discussion... .DISCUSSION... Issued at 255 PM CDT Sun Jun 5 2022 Today and Tonight... Stubborn patchy dense fog lingered over northeast Nebraska through the morning, dropping visibilities to a quarter of a mile or less, from Norfolk through Wayne. A weakening MCS drifted out of north- central NE/southern South Dakota and into northeast Nebraska this morning, which appeared to help to finally clear up some of the fog. Meanwhile, around 1000 J/kg of instability and steepening lapse rates over central Nebraska allowed a few storms to pop late this morning. While one or two of these initial cells has shown promise in being capable of producing a bit of hail and some gusty winds, they have generally fallen apart as they approach the OAX CWA. This evening, additional showers and thunderstorms are expected to develop even farther to our west, over central Nebraska, along a stalled boundary that has set up over the region. Steep mid-level lapse rates, 30 kts of bulk shear, and a surge of moisture returning to central Nebraska will bring a better shot for severe weather this evening, from around 6 PM through midnight. One caveat here would be if morning convection leaves behind an overworked atmosphere, which would be inhospitable for severe updrafts. In this scenario, the better chance for stronger storms would be mainly south of the Platte River, in areas unaffected by earlier convection. A few runs of the HRRR also hint at another line of convection developing over northeast Nebraska, along the stationary boundary. If the atmosphere has time to recover, these too could produce gusty winds and hail. Monday and Beyond... A few spotty showers and thunderstorms look possible, Monday, however no severe weather is expected at this time. Highs will top out in the 70s each day, with periodic chances for precipitation. The next chance for severe weather looks to arrive Thursday, when an MCS could develop and pass through the region. && .AVIATION...(For the 18Z TAFS through 18Z Monday afternoon) Issued at 1225 PM CDT Sun Jun 5 2022 A few showers and perhaps a thunderstorm will make it through Norfolk this afternoon. Another round of stronger storms will be possible around 00Z this evening. There remains quite a bit of uncertainty as to where and when storms might develop. Best guess right now is that they will be at KOFK by 00Z, KOMA by 01Z, and KLNK closer to 02Z. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...None. IA...None. && DISCUSSION...KG AVIATION...KG
Hazardous weather outlook, Jun 5, 3:17 PM CDT, 1 hour 50 minutes before
Hazardous Weather Outlook National Weather Service Omaha/Valley NE 317 PM CDT Sun Jun 5 2022 IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-061030- 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- 317 PM CDT Sun Jun 5 2022 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 storms will be possible this evening with large hail and damaging winds the primary threats, especially across southeast Nebraska. .DAYS TWO THROUGH SEVEN...Monday night through Sunday Periodic thunderstorm chances will persist between Monday and Friday of next week. At this time the best chance for severe storms appears to be Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Jun 5, 5:03 PM CDT, 4 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 |
|---|---|---|---|---|
| Jun 4, 7:56 PM CDT | Severe Thunderstorm Warning | OAX | Butler | 34 min |
| Jun 4, 8:00 PM CDT | Severe Thunderstorm Warning | OAX | Colfax | 30 min |
| Jun 4, 8:26 PM CDT | Severe Thunderstorm Warning | OAX | Butler | 34 min |
| Jun 4, 8:33 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Colfax | 11 min |
| Jun 4, 8:58 PM CDT | Severe Thunderstorm Warning | OAX | Butler | 15 min |
| Jun 4, 9:52 PM CDT | Special Weather Statement | OAX | Platte | 8 min |
| Jun 4, 9:59 PM CDT | Special Weather Statement | OAX | Platte | 16 min |
| Jun 4, 10:01 PM CDT | Severe Thunderstorm Warning | OAX | Platte | 21 min |
| Jun 4, 11:15 PM CDT | Special Weather Statement | OAX | Boone | 15 min |
| Jun 4, 11:22 PM CDT | Special Weather Statement | OAX | Boone | 8 min |
| Jun 4, 11:28 PM CDT | Special Weather Statement | OAX | Boone | 17 min |
| Jun 5, 4:47 PM CDT | Areal Flood Advisory | OAX | Douglas, Sarpy | 108 min |
| Jun 5, 5:03 PM CDT | Special Weather Statement | OAX | Douglas | 27 min |
| Jun 5, 6:28 PM CDT | Special Weather Statement | OAX | Richardson | 32 min |
| Jun 5, 6:57 PM CDT | Special Weather Statement | OAX | Richardson | 48 min |
| Jun 5, 5:25 PM CDT | Special Weather Statement | OAX | Harrison | 35 min |
| Jun 5, 6:37 PM CDT | Special Weather Statement | OAX | Shelby | 23 min |
Nearby
Flash Flood Warnings in Nebraska, 2022Every flash flood warning in 2022
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.