Alert archive / Nebraska / Flash Flood Warnings in 1996
Flash Flood Warning 2, NWS Omaha, NE
NWS Omaha, NE issued this flash flood warning at May 9, 1996, 3:55 AM CDT for Lancaster County, Otoe County, Nebraska. It was in force for 5 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
- May 9, 1996, 3:55 AM CDT (08:55 UTC)
- Expired
- May 9, 1996, 9:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
Counties Lancaster County, NE, Otoe County, NE
The radar
The Omaha radar (KOAX), 67 km from the middle of the area, began a volume at 08:55 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, 8.9 hours before the alert went out and 67 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
- 1091 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 739 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KOMA 090900 FFWOMA NEC109-131-091400- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 355 AM CDT THU MAY 9 1996 THE NATIONAL WEATHER SERVICE IN OMAHA/VALLEY HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 900 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL NEBRASKA ...SOUTHERN LANCASTER COUNTY IN SOUTHEAST NEBRASKA ...OTOE COUNTY HEAVY THUNDERSTORMS CONTINUE TO MOVE EAST ACROSS SOUTHERN LANCASTER AND OTOE COUNTIES AT 400 AM CDT THIS MORNING IN AN AREA THAT HAS RECEIVED FROM 2 TO 4 INCHES OF RAINFALL SINCE EARLY WEDNESDAY EVENING. THESE THUNDERSTORMS ARE EXPECTED TO CONTINUE UNTIL AROUND 600 CDT WITH AN ADDITIONAL INCH OR TWO RAINFALL FOR THE AREA. FLASH FLOODING IS EXPECTED IN LOW LYING AREAS AND ALONG FLOOD PRONE AREAS OF THE SALT CREEK IN SOUTHERN LANCASTER COUNTY AND IN THE HEADWATER STREEMS OF THE LITTLE NEMAHA RIVER IN OTOE COUNTY. REMEMBER THAT A FLOOD WARNING IS ALSO IN EFFECT THIS MORNING FOR THE LITTLE NEMAHA RIVER DOWNSTREEM FROM UNADILLA IN OTOE COUNTY TO THE MISSOURY RIVER. THE LITTLE NEMAHA RIVER IS LIKELY TO RISE TO 24 FEET BY MID MORNING AT AUBURN. PERSONS WITH PROPERTY OR ANIMALS NEAR THE LITTLE NEMAHA SHOULD TAKE IMMEDIATE MEASURES TO PROTECT THEM FROM ANY FLOODING TODAY. PEOPLE IN THE WARNED AREA...ESPECIALLY CAMPERS...SHOULD SEEK HIGHER GROUND WITHOUT DELAY. MOTORISTS SHOULD USE CAUTION IN APPROACHING LOW AREAS OF ROADS. DO NOT ATTEMPT TO DRIVE OVER A ROAD COVERED BY WATER. THE ROAD COULD BE WASHED OUT UNDER THE WATER SURFACE OR YOUR CAR COULD BE SWEPT AWAY IF WATER IS FLOWING SWIFTLY. PEOPLE NEAR STREAMS OR IN LOW LYING AREAS SHOULD NOT WASTE TIME TRYING TO SAVE PERSONAL PROPERTY...MOVE TO HIGH GROUND IMMEDIATELY. MEIER
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, May 9, 2:04 AM CDT, 1 hour 51 minutes before
NEZ023>027-035>037-057-090800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 200 AM CDT (1259 AM MDT) THU MAY 9 1996 ...TORNADO WATCH CANCELED FOR A PORTION OF WESTERN NEBRASKA... A PORTION OF TORNADO WATCH NUMBER 324 IN EFFECT FOR NORTHWEST NEBRASKA HAS BEEN CLEARD AT 200 AM CDT THIS THURSDAY MORNING. THE CLEARED AREA OF THE TORNADO WATCH IS NORTH OF A LINE FROM OGALLALA TO BURWELL. ALTHOUGH SHOWERS AND A FEW THUNDERSTORMS ARE EXPECTED TO CONTINUE IN THIS PART OF NEBRASKA TONIGHT THEY ARE NOT EXPECTED TO BE SEVERE. REMEMBER THAT A TORNADO WATCH REMAINS IN EFFECT FOR SOUTHWEST NEBRASKA UNTIL 400 AM CDT THIS THURSDAY MORNING. VERY STRONG THUNDERSTORMS CONTINUE TO FORM IN THIS PART OF THE STATE NEAR THE COLORADO BORDER...NORTH OF A STATIONARY FRONT IN WESTERN KANSAS. THEY GAIN STRENGTH AS THEY MOVE EAST ACROSS SOUTHWEST NEBRASKA AND THREATEN THE AREA FROM IMPERIAL TO NORTH PLATTE TO BROKEN BOW AND SOUTH TO MCCOOK WITH HEAVY RAIN...HAIL...STRONG WINDS AND POSSIBLY A TORNADO. MEIER
Special weather statement, May 9, 3:05 AM CDT, 50 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 303 AM CDT THU MAY 9 1996 NEZ030-031-042-091000- BOONE-MADISON-PLATTE- INCLUDING THE CITIES OF...ALBION...COLUMBUS...NORFOLK 303 AM CDT THU MAY 9 1996 .NOW... TORNADO WATCH 324 HAS BEEN CANCELLED. ADDITIONAL THUNDERSTORMS WITH SMALL HAIL AND HEAVY RAIN ARE POSSIBLE THE REST OF THE NIGHT ...BUT TORNADOES ARE NO LONGER A THREAT. KLISH
Special weather statement, May 9, 3:34 AM CDT, 21 minutes before
NEZ004>012-015>018-022>053-056>078-082>093-IAZ043-055-056-069- 079-080-090-091-090920- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 330 AM CDT (230 AM MDT) THU MAY 9 1996 ...TORNADO WATCH NUMBER 324 IS CANCELLED FOR CENTRAL AND WESTERN NEBRASKA... ...THE TORNADO WATCH FOR EAS AND SOUTHEAST NEBRASKA EXPIRED AT 300 AM CDT... THE TORNADO WATCH NUMBER 324 ISSUED FOR A LARGE PART OF WESTERN NEBRASKA HAS BEEN CANCELLED AT 300 AM CDT THIS THURSDAY MORNING. ALTHOUGH SHOWERS AND A FEW THUNDERSTORMS CONTINUE IN THE SOUTHWEST THEY HAVE LOST MUCH OF THEIR STRENGTH. EXCEPT FOR THE DANGER OF LIGHTENING THESE STORMS ARE NOT EXPECTED TO BE SEVERE. IN EAST AND SOUTHEAST NEBRASKA TORNADO WATCH NUMBER 323 EXPIRED AT 300 AM CDT. THUNDERSTORMS DIMINISHING TO SHOWERS ARE EXPECTED TO CONTINUE IN THE AREA UNTIL MID MORNING. ASIDE FROM THE DANGER OF ADDITIONAL BRIEF HEAVY DOWNPOURS...THE THREAT OF SEVERE WEATHER HAS PASSED. IN THE SOUTHEAST SECTIONS OF THE STATE THERE HAVE BEEN SEVERAL AREAS OF HEAVY RAINFALL THIS MORNING. TO THE EAST AND NORTHEAST OF BEATRICE ALONG BEAR...INDIAN...PIERCE AND CEDAR CREEKS IN GAGE COUNTY...AN ESTIMATED 3 TO 4 INCHES OF RAIN HAS FALLEN. ALSO IN JOHNSTON COUNTY ...3 TO 4 INCHES OF RAIN HAS FALLEN ALONG YANKEE AND HOOKER CREEKS THAT DRAIN INTO THE BIG NEMAHA NORTH OF TECUMSEH. LATEST REPORTS DO NOT INDICATE ANY FLOODING PROBLEMS IN THE AREA BUT BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLASH FLOODING ALONG THESE SMALLER CREEKS...ESPECIALLY AT BRIDGES AND IN LOW LYING AREAS.
Special weather statement, May 9, 3:42 AM CDT, 13 minutes before
NEZ004>012-015>018-022>053-056>078-082>093-IAZ043-055-056-069- 079-080-090-091-090920- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 330 AM CDT (230 AM MDT) THU MAY 9 1996 ...TORNADO WATCH NUMBER 324 IS CANCELLED FOR CENTRAL AND WESTERN NEBRASKA... ...THE TORNADO WATCH FOR EAS AND SOUTHEAST NEBRASKA EXPIRED AT 300 AM CDT... THE TORNADO WATCH NUMBER 324 ISSUED FOR A LARGE PART OF WESTERN NEBRASKA HAS BEEN CANCELLED AT 300 AM CDT THIS THURSDAY MORNING. ALTHOUGH SHOWERS AND A FEW THUNDERSTORMS CONTINUE IN THE SOUTHWEST THEY HAVE LOST MUCH OF THEIR STRENGTH. EXCEPT FOR THE DANGER OF LIGHTENING THESE STORMS ARE NOT EXPECTED TO BE SEVERE. IN EAST AND SOUTHEAST NEBRASKA TORNADO WATCH NUMBER 323 EXPIRED AT 300 AM CDT. THUNDERSTORMS DIMINISHING TO SHOWERS ARE EXPECTED TO CONTINUE IN THE AREA UNTIL MID MORNING. ASIDE FROM THE DANGER OF ADDITIONAL BRIEF HEAVY DOWNPOURS...THE THREAT OF SEVERE WEATHER HAS PASSED. IN THE SOUTHEAST SECTIONS OF THE STATE THERE HAVE BEEN SEVERAL AREAS OF HEAVY RAINFALL THIS MORNING. TO THE EAST AND NORTHEAST OF BEATRICE ALONG BEAR...INDIAN...PIERCE AND CEDAR CREEKS IN GAGE COUNTY...AN ESTIMATED 3 TO 4 INCHES OF RAIN HAS FALLEN. ALSO IN JOHNSTON COUNTY ...3 TO 4 INCHES OF RAIN HAS FALLEN ALONG YANKEE AND HOOKER CREEKS THAT DRAIN INTO THE BIG NEMAHA NORTH OF TECUMSEH. LATEST REPORTS DO NOT INDICATE ANY FLOODING PROBLEMS IN THE AREA BUT BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLASH FLOODING ALONG THESE SMALLER CREEKS...ESPECIALLY AT BRIDGES AND IN LOW LYING AREAS. MEIER
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 8:09 PM CDT | Severe Thunderstorm Warning | OAX | Gage, Saline | 36 min |
| May 8, 8:42 PM CDT | Severe Thunderstorm Warning | OAX | Gage, Lancaster | 48 min |
| May 8, 8:50 PM CDT | Tornado Warning | OAX | Gage, Lancaster | 40 min |
| May 8, 9:11 PM CDT | Tornado Warning | OAX | Jefferson | 49 min |
| May 8, 9:15 PM CDT | Tornado Warning | OAX | Johnson, Nemaha, Otoe | 30 min |
| May 8, 9:29 PM CDT | Tornado Warning | OAX | Gage, Johnson | 46 min |
| May 8, 9:52 PM CDT | Tornado Warning | OAX | Jefferson | 38 min |
| May 8, 10:06 PM CDT | Severe Thunderstorm Warning | OAX | Lancaster, Saunders | 54 min |
| May 8, 10:13 PM CDT | Tornado Warning | OAX | Johnson | 47 min |
| May 8, 10:27 PM CDT | Severe Thunderstorm Warning | OAX | Gage | 48 min |
| May 8, 10:31 PM CDT | Tornado Warning | OAX | Gage | 44 min |
| May 8, 11:43 PM CDT | Severe Thunderstorm Warning | OAX | Dodge | 47 min |
| May 9, 12:25 AM CDT | Severe Thunderstorm Warning | OAX | Madison, Stanton | 50 min |
| May 9, 12:30 AM CDT | Severe Thunderstorm Warning | OAX | Burt, Cuming | 30 min |
| May 9, 12:48 AM CDT | Severe Thunderstorm Warning | OAX | Saline, Seward | 42 min |
| May 9, 1:30 AM CDT | Severe Thunderstorm Warning | OAX | Lancaster | 45 min |
| May 9, 1:40 AM CDT | Severe Thunderstorm Warning | OAX | Colfax | 50 min |
| May 9, 6:59 PM CDT | Severe Thunderstorm Warning | OAX | Jefferson | 46 min |
Nearby
Flash Flood Warnings in Nebraska, 1996Every flash flood warning in 1996
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.