Alert archive / Nebraska / Flash Flood Warnings in 1992
Flash Flood Warning 4, NWS Omaha, NE
NWS Omaha, NE issued this flash flood warning at Jul 24, 1992, 8:06 PM CDT for Johnson County, Lancaster County, Nebraska. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jul 24, 1992, 8:06 PM CDT (01:06 UTC)
- Expired
- Jul 25, 1992, 12:15 AM CDT
- In force
- 4 hr
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
Counties Johnson County, NE, Lancaster County, NE
The nearest sounding before it
Omaha, NE (KOVN), launched 00:00Z, 1.1 hours before the alert went out and 82 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
- 44 J/kg
- Mixed-layer CIN
- -240 J/kg
- Mixed-layer LCL
- 791 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 154 m²/s²
- 0-3 km storm-relative helicity
- 235 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
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.
In the hours before
Special weather statement, Jul 24, 2:21 PM CDT, 5 hours 45 minutes before
NEZ015-019-242045-
SPECIAL WEATHER STATEMENT FOR SOUTHEAST NEBRASKA
NATIONAL WEATHER SERVICE LINCOLN NE
220 PM CDT FRI JUL 24 1992
...THUNDERSTORM MOVING THROUGH THE CITY OF LINCOLN SOUTHERN
LANCASTER COUNTY...
AT 220 PM CDT RADAR INDICATED A THUNDERSTORM FROM CENTRAL SALINE
COUNTY NORTH OF WESTERN WHICH IS 40 MILES SOUTHWEST OF LINCOLN
NORTHEAST INTO CASS COUNTY NEAR THE TOWN OF GREENWOOD WHICH IS
15 MILES NORTHEAST OF LINCOLN. THESET THUNDERSTORMS WERE MOVING
TO THE EAST NORTHEAST AT 25 MPH.
DANGEROUS LIGHTNING AND BRIEF HEAVY RAIN IS ASSOCIATED WITH THIS
THUNDERSTORM. PEOPLE IN THE PATH OF THIS STORM SHOULD SEEK SHELTER
IMMEDIATELY.
SCHLACHTERSpecial weather statement, Jul 24, 3:14 PM CDT, 4 hours 52 minutes before
NEZ015-019-242145- SPECIAL WEATHER STATEMENT FOR SOUTHEAST NEBRASKA NATIONAL WEATHER SERVICE LINCOLN NE 315 PM CDT FRI JUL 24 1992 ...THUNDERSTORMS IN SOUTHERN LANCASTER COUNTY...NORTHERN GAGE... EASTERN FILLMORE AND CENTRAL SEWARD COUNTIES... AT 310 PM CDT RADAR INDICATED A THUNDERSTORMS FROM EASTERN FILLMORE COUNTY EAST INTO CENTRAL SALINE THROUGH SOUTHERN LANCASTER COUNTY AND INTO OTOE AND CASS COUNTIES. THIS LINE OF THUNDERSTORMS ARE MOjVING TO THE EAST-NORTHEAST AT 25 MPH. DANGEROUS LIGHTNING AND BRIEF HEAVY RAIN IS ASSOCIATED WITH THIS THUNDERSTORM. PEOPLE IN THE PATH OF THIS STORM SHOULD SEEK SHELTER IMMEDIATELY. SCHLACHTER
Special weather statement, Jul 24, 6:15 PM CDT, 1 hour 51 minutes before
NEZ015-019-250015- SPECIAL WEATHER STATEMENT FOR SOUTHEAST NEBRASKA NATIONAL WEATHER SERVICE LINCOLN NE 615 PM CDT FRI JUL 24 1992 ...FLASH FLOOD WARNING UNTIL 815 PM CDT FOR SOUTHERN LANCASTER AND JOHNSON COUNTY... ...SEVERE THUNDERSTORM WATCH UNTIL 11 PM CDT... AT 610 PM CDT RADAR INDICATED A STRONG THUNDERSTORM ON THE SEWARD AND LANCASTER COUNTY LINE. THE TOWNS OF MILFORD AND PLEASANT DALE ARE IN THE PATH OF THIS STORM. THIS STORM IS PART OF A LINE OF THUNDERSTORMS THAT EXTEND WEST TO THE HASTINGS AREA IN SOUTH CENTRAL NEBRASKA. MODERATE TO HEAVY RAIN IS STILL FALLING IN SOUTHERN LANCASTER AND JOHNSON COUNTIES ALTHOUGH THE STORMS HAVE WEAKENED SOME DURING THE LAST HOUR. ZELL
Special weather statement, Jul 24, 6:32 PM CDT, 1 hour 34 minutes before
NEZ010-015-020-IAZ056-080-090-091-250130-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
630 PM CDT FRI JUL 24 1992
...SEVERE THUNDERSTORM WATCH FOR SOUTHEAST NEBRASKA AND SOUTHWEST IOWA
UNTIL 11 PM CDT...
...FLASH FLOOD WARNING FOR OTOE AND NEMAHA COUNTIES UNTIL 900 PM CDT...
AT 600 PM AN AREA OF THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...WAS
LOCATED OVER SOUTHERN CASS...OTOE...AND NEMAHA COUNTIES. ANOTHER AREA
OF THUNDERSTORMS WAS LOCATED OVER PAGE COUNTY IN SOUTHWEST IOWA. THE
THUNDERSTORMS WERE MOVING TO THE SOUTHEAST AT 25 MPH.
CLOUDY SKIES WILL REMAIN OVER THE REST OF THE AREA THIS EVENING. THERE
IS A CHANCE OF MORE THUNDERSTORMS MOVING INTO THE OMAHA AREA AFTER
9PM CDT. SOME OF THESE STORMS MAY CONTAIN HEAVY RAIN. TEMPERATURES
WILL REMAIN ALMOST STEADY FROM EARLY EVENING READINGS AROUND 70 AS A
WARM FRONT WILL PASS THROUGH THE AREA DURING THE NIGHT.
ANDERSONSpecial weather statement, Jul 24, 7:44 PM CDT, 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA NE 745 PM CDT FRI JUL 24 1992 TORNADO WATCH 678 IS NO LONGER IN EFFECT FOR THE FOLLOWING COUNTIES IN NEBRASKA... ...ZONE 1... BOX BUTTE DDAWES SHERIDAN SIOUX ANDERSON
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 7:55 PM CDT | Flash Flood Warning | OAX | Nemaha, Otoe | 4 hr |
| Jul 24, 8:06 PM CDT | Flash Flood Warning | OAX | Saline | 4 hr |
| Jul 24, 8:14 PM CDT | Severe Thunderstorm Warning | OAX | Saline, Seward | 59 min |
| Jul 24, 9:08 PM CDT | Flash Flood Warning | OAX | Saline | 3 hr |
| Jul 24, 10:52 PM CDT | Flash Flood Warning | OAX | Gage, Jefferson | 4 hr |
| Jul 25, 12:11 AM CDT | Flash Flood Warning | OAX | Johnson, Lancaster | 3 hr |
| Jul 25, 12:11 AM CDT | Flash Flood Warning | OAX | Saline | 3 hr |
| Jul 25, 1:34 AM CDT | Flash Flood Warning | OAX | Pawnee | 3 hr |
| Jul 25, 4:28 PM CDT | Flash Flood Warning | OAX | Dodge | 3 hr |
| Jul 25, 5:33 PM CDT | Flash Flood Warning | OAX | Richardson | 4 hr |
Nearby
Flash Flood Warnings in Nebraska, 1992Every flash flood warning in 1992
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.