Alert archive / Nebraska / Flash Flood Warnings in 1997
Flash Flood Warning 7, NWS Omaha, NE
NWS Omaha, NE issued this flash flood warning at Jul 10, 1997, 8:50 AM CDT for Saline County, Nebraska. It was in force for 4 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
- Jul 10, 1997, 8:50 AM CDT (13:50 UTC)
- Expired
- Jul 10, 1997, 12:45 PM CDT
- In force
- 4 hr
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
County Saline County, NE
The radar
The Omaha radar (KOAX), 110 km from the middle of the area, began a volume at 13:53 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, 1.8 hours before the alert went out and 110 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
- 729 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 536 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KOMA 101351 FFWOMA NEC151-101745- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 850 AM CDT THU JUL 10 1997 THE NATIONAL WEATHER SERVICE IN OMAHA/VALLEY HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1245 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST NEBRASKA ...SALINE COUNTY FLASH FLOODING HAS BEEN REPORTED AROUND WILBER IN EAST CENTRAL SALINE COUNTY AT 845 AM CDT. RAINFALL OF AROUND 5 INCHES HAS BEEN REPORTED IN THE WILER AREA SO FAR THIS MORNING WITH RADAR SHOWING ANOTHER AREA OF HEAVY RAINFALL AROUND FRIEND IN NORTHERN SALINE COUNTY. ADDITIONAL THUNDERSTORMS WITH HEAVY RAIN ARE LIKELY THROUGH 10 AM CDT. A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR HAS BEEN REPORTED. RESIDENTS SHOULD TAKE IMMEDIATE PRECAUTIONS. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS BY FOOT OR BY AUTO. & FOBERT
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.
In the hours before
Special weather statement, Jul 10, 5:15 AM CDT, 3 hours 35 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-111200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 515 AM CDT THU JUL 10 1997 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTER ACTIVATION MAY BE NEEDED TODAY OR TNIGHT. DISCUSSION... LITTLE CHANGE IN THE WEATHER PATTERN IS EXPECTED TODAY. A DISTURBANCE MOVING ACROSS EASTERN NEBRASKA THIS MORNING IS PRODUCING SCATTERED THUNDERSTORMS WITH HEAVY RAIN AND HAIL THE PRIMARY WEATHER THREATS. THE STORMS WILL GRADUALLY WEAKEN THIS MORNING AS THE LOW LEVEL JET SUBSIDE AND THE UPPER LEVEL SYSTEM MOVEES NORTHEAST. WITH OUTFLOW BOUNDARIES AND A NEARLY STATIONARY FRONT OVER THE AREA...THUNDERSTORMS MAY REDEVELOP THIS AFTERNOON WITH SOME OF THEM POSSIBLY BECOMING SEVERE. TONIGHT...THE LOW LEVEL JET WILL AGAIN DEVELOP WITH MORE THUNDERSTORMS DEVELOPING. ZAPOTOCNY
Special weather statement, Jul 10, 5:22 AM CDT, 3 hours 28 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-111200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 515 AM CDT THU JUL 10 1997 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTER ACTIVATION MAY BE NEEDED TODAY OR TNIGHT. DISCUSSION... LITTLE CHANGE IN THE WEATHER PATTERN IS EXPECTED TODAY. A DISTURBANCE MOVING ACROSS EASTERN NEBRASKA THIS MORNING IS PRODUCING SCATTERED THUNDERSTORMS WITH HEAVY RAIN AND HAIL THE PRIMARY WEATHER THREATS. THE STORMS WILL GRADUALLY WEAKEN THIS MORNING AS THE LOW LEVEL JET SUBSIDE AND THE UPPER LEVEL SYSTEM MOVEES NORTHEAST. WITH OUTFLOW BOUNDARIES AND A NEARLY STATIONARY FRONT OVER THE AREA...THUNDERSTORMS MAY REDEVELOP THIS AFTERNOON WITH SOME OF THEM POSSIBLY BECOMING SEVERE. TONIGHT...THE LOW LEVEL JET WILL AGAIN DEVELOP WITH MORE THUNDERSTORMS DEVELOPING. ZAPOTOCNY
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 8:38 AM CDT | Flash Flood Warning | OAX | Gage | 4 hr |
Nearby
Flash Flood Warnings in Nebraska, 1997Every flash flood warning in 1997
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.