Alert archive / Nebraska / Flash Flood Warnings in 1998
Flash Flood Warning 11, NWS Omaha, NE
NWS Omaha, NE issued this flash flood warning at Jun 14, 1998, 3:27 AM CDT for Seward County, Nebraska. It was in force for 3 hr. 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 14, 1998, 3:27 AM CDT (08:27 UTC)
- Expired
- Jun 14, 1998, 6:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
County Seward County, NE
The radar
The Omaha radar (KOAX), 82 km from the middle of the area, began a volume at 08:29 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, 8.5 hours before the alert went out and 81 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
- 382 J/kg
- Mixed-layer CIN
- -388 J/kg
- Mixed-layer LCL
- 1731 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 14, 2:50 AM CDT, 37 minutes earlier.
Area forecast discussion, Jun 14, 2:50 AM CDT, 37 minutes before
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Local storm report, Jun 14, 2:12 AM CDT, 1 hour 15 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 13, 7:17 PM CDT | Tornado Warning | OAX | Gage | 48 min |
| Jun 13, 7:56 PM CDT | Tornado Warning | OAX | Pawnee | 49 min |
| Jun 13, 8:33 PM CDT | Severe Thunderstorm Warning | OAX | Nemaha, Richardson | 47 min |
| Jun 13, 8:40 PM CDT | Severe Thunderstorm Warning | OAX | Platte | 50 min |
| Jun 13, 9:10 PM CDT | Tornado Warning | OAX | Richardson | 35 min |
| Jun 13, 9:38 PM CDT | Tornado Warning | OAX | Pawnee | 32 min |
| Jun 13, 9:58 PM CDT | Severe Thunderstorm Warning | OAX | Saline, Seward | 47 min |
| Jun 13, 10:13 PM CDT | Severe Thunderstorm Warning | OAX | Richardson | 47 min |
| Jun 13, 10:26 PM CDT | Tornado Warning | OAX | Jefferson, Saline | 49 min |
| Jun 13, 11:10 PM CDT | Severe Thunderstorm Warning | OAX | Otoe | 50 min |
| Jun 13, 11:23 PM CDT | Severe Thunderstorm Warning | OAX | Gage, Lancaster | 47 min |
| Jun 13, 11:43 PM CDT | Severe Thunderstorm Warning | OAX | Johnson, Otoe | 62 min |
| Jun 13, 11:43 PM CDT | Severe Thunderstorm Warning | OAX | Cass | 62 min |
| Jun 14, 12:56 AM CDT | Flash Flood Warning | OAX | Nemaha | 3 hr |
| Jun 14, 12:56 AM CDT | Flash Flood Warning | OAX | Cass, Otoe | 3 hr |
| Jun 14, 1:10 AM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 45 min |
Nearby
Flash Flood Warnings in Nebraska, 1998Every flash flood warning in 1998
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.