Alert archive / Nebraska / Flash Flood Warnings in 1997
Flash Flood Warning 4, NWS Omaha, NE
NWS Omaha, NE issued this flash flood warning at Jun 29, 1997, 2:30 PM CDT for Madison County, Stanton 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 29, 1997, 2:30 PM CDT (19:30 UTC)
- Expired
- Jun 29, 1997, 5:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
Counties Madison County, NE, Stanton County, NE
The radar
The Omaha radar (KOAX), 108 km from the middle of the area, began a volume at 19:31 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, 7.5 hours before the alert went out and 108 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
- 1803 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 732 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 42 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 291931 FFWOMA NEC119-167-292230- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 230 PM CDT SUN JUN 29 1997 * FLASH FLOOD WARNING FOR MADISON COUNTY - IN NORTHEASTERN NEBRASKA STANTON COUNTY - IN NORTHEASTERN NEBRASKA * UNTIL 530 PM CDT * SOME STREAMS AFFECTED LOCAL CREEKS IN EASTERN MADISON AND WESTERN STANTON COUNTIES * CAUSE AND EFFECT RADAR INDICATES EXCESSIVE RAINFALL HAS OCCURRED FROM NORTHEAST MADISON INTO NORTHWEST STANTON COUNTY WITH ESTIMATES OF MORE THAN 2.5 INCHES SINCE 100 PM. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. CONSIDERABLE STEET FLOODING WAS REPORTED BY NORFOLK POLICE IN NORFOLK. CHERMOK
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, Jun 29, 11:35 AM CDT, 2 hours 55 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-301200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 1135 AM CDT SUN JUN 29 1997 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTER ACTIVATION MAY BE NEEDED LATE THIS AFTERNOON AND TONIGHT ACROSS EASTERN NEBRASKA AND SOUTHWEST IOWA. DISCUSSION... A WARM AND UNSTABLE AIRMASS CONTINUED TO COVER EASTERN NEBRASKA AND SOUTHWEST IOWA. SEVERAL WEAK BOUNDARIES FROM EARLIER SHOWERS AND THUNDERSTORMS COMBINED WITH AN UPPER LEVEL DISTURBANCE COULD TRIGGER REDEVELOPMENT OF THUNDERSTORMS JUST ABOUT ANYWHERE ACROSS THE AREA LATER THIS AFTERNOON. IN ADDITION...LOW PRESSURE EXPECTED TO DEEPEN OVER WESTERN SOUTH DAKOTA TONIGHT WILL INCREASE LOW LEVEL SOUTH WINDS ACROSS THE CENTRAL PLAINS. THIS WOULD FEED MOIST AND UNSTABLE AIR INTO ANY THUNDERSTORMS THAT DEVELOP WEST OF THE AREA THIS AFTERNOON ...POSSIBLY CAUSING THE THUNDERSTORMS TO BECOME MORE WIDESPREAD TONIGHT AS THEY MOVED EAST. THE PRIMARY THREAT FROM THE THUNDERSTORMS IS HEAVY RAIN AND DAMAGING WINDS. HOWEVER...SOME OF THE STRONGER STORMS COULD PRODUCE LARGE HAIL ...ESPECIALLY FROM LATE AFTERNOON THROUGH LATE EVENING. CHERMOK
Special weather statement, Jun 29, 11:41 AM CDT, 2 hours 49 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-301200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 1135 AM CDT SUN JUN 29 1997 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTER ACTIVATION MAY BE NEEDED LATE THIS AFTERNOON AND TONIGHT ACROSS EASTERN NEBRASKA AND SOUTHWEST IOWA. DISCUSSION... A WARM AND UNSTABLE AIRMASS CONTINUED TO COVER EASTERN NEBRASKA AND SOUTHWEST IOWA. SEVERAL WEAK BOUNDARIES FROM EARLIER SHOWERS AND THUNDERSTORMS COMBINED WITH AN UPPER LEVEL DISTURBANCE COULD TRIGGER REDEVELOPMENT OF THUNDERSTORMS JUST ABOUT ANYWHERE ACROSS THE AREA LATER THIS AFTERNOON. IN ADDITION...LOW PRESSURE EXPECTED TO DEEPEN OVER WESTERN SOUTH DAKOTA TONIGHT WILL INCREASE LOW LEVEL SOUTH WINDS ACROSS THE CENTRAL PLAINS. THIS WOULD FEED MOIST AND UNSTABLE AIR INTO ANY THUNDERSTORMS THAT DEVELOP WEST OF THE AREA THIS AFTERNOON ...POSSIBLY CAUSING THE THUNDERSTORMS TO BECOME MORE WIDESPREAD TONIGHT AS THEY MOVED EAST. THE PRIMARY THREAT FROM THE THUNDERSTORMS IS HEAVY RAIN AND DAMAGING WINDS. HOWEVER...SOME OF THE STRONGER STORMS COULD PRODUCE LARGE HAIL ...ESPECIALLY FROM LATE AFTERNOON THROUGH LATE EVENING. CHERMOK
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 1:58 PM CDT | Severe Thunderstorm Warning | OAX | Madison, Stanton | 62 min |
| Jun 29, 3:14 PM CDT | Severe Thunderstorm Warning | OAX | Dodge | 46 min |
| Jun 29, 3:21 PM CDT | Tornado Warning | OAX | Dodge | 49 min |
| Jun 29, 3:41 PM CDT | Severe Thunderstorm Warning | OAX | Washington | 49 min |
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.