Alert archive / Nebraska / Flash Flood Warnings in 2000

Flash Flood Warning 7, NWS Omaha, NE

June 25, 2000Thurston County, Nebraska

NWS Omaha, NE issued this flash flood warning at Jun 25, 2000, 12:55 PM CDT for Thurston 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 outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jun 25, 2000, 12:55 PM CDT (17:55 UTC)
Expired: Jun 25, 2000, 5:00 PM CDT
In force: 4 hr
Issued by: NWS Omaha, NE
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Thurston County, NE

The radar

The Omaha radar (KOAX), 95 km from the middle of the area, began a volume at 17:58 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, 5.9 hours before the alert went out and 95 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 371 J/kg
Mixed-layer CIN: -296 J/kg
Mixed-layer LCL: 1430 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS53 KOAX 251758
FFWOAX
NEC173-252200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE OMAHA NE
1255 PM CDT SUN JUN 25 2000

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THURSTON COUNTY IN NORTHEAST NEBRASKA

* UNTIL 500 PM CDT

* AT 1253 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN ACROSS THURSTON COUNTY FROM NORTH OF PENDER EAST TO THE
MISSOURI RIVER.   THE AREA OF HEAVY RAIN WAS NEARLY STATIONARY.
RADAR ESTIMATES INDICATE AS MUCH AS THREE INCHES OF RAIN HAVE
FALLEN ON PARTS OF THE COUNTY.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.  PARTICULARLY
SUSCEPTIBLE IS OMAHA CREEK AND ITS TRIBUTARIES.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE 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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

TO REPORT SEVERE WEATHER...HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
ODMAHA.

LAT...LON 4210 9683 4203 9628 4225 9641 4226 9683

POWERS
NNNN

The office that day

Everything else NWS Omaha, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 25, 8:56 AM CDT	Severe Thunderstorm Warning	OAX	Otoe	34 min
Jun 25, 11:59 AM CDT	Severe Thunderstorm Warning	OAX	Thurston	31 min
Jun 25, 12:33 PM CDT	Severe Thunderstorm Warning	OAX	Thurston	27 min
Jun 25, 12:56 PM CDT	Severe Thunderstorm Warning	OAX	Madison, Stanton	49 min
Jun 25, 1:09 PM CDT	Severe Thunderstorm Warning	OAX	Boone, Platte	51 min
Jun 25, 1:22 PM CDT	Tornado Warning	OAX	Platte	23 min
Jun 25, 1:44 PM CDT	Tornado Warning	OAX	Colfax, Platte	31 min
Jun 25, 1:47 PM CDT	Severe Thunderstorm Warning	OAX	Cedar, Knox	43 min
Jun 25, 2:02 PM CDT	Tornado Warning	OAX	Burt, Cuming	28 min
Jun 25, 2:07 PM CDT	Severe Thunderstorm Warning	OAX	Pierce	38 min
Jun 25, 2:14 PM CDT	Tornado Warning	OAX	Colfax, Platte	31 min
Jun 25, 2:34 PM CDT	Severe Thunderstorm Warning	OAX	Burt	41 min
Jun 25, 2:43 PM CDT	Tornado Warning	OAX	Colfax, Dodge	32 min
Jun 25, 3:00 PM CDT	Severe Thunderstorm Warning	OAX	Butler, Saunders	45 min
Jun 25, 3:17 PM CDT	Tornado Warning	OAX	Cass, Sarpy, Saunders	28 min
Jun 25, 3:31 PM CDT	Severe Thunderstorm Warning	OAX	Douglas	44 min
Jun 25, 3:45 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Sarpy, Saunders	45 min
Jun 25, 4:03 PM CDT	Severe Thunderstorm Warning	OAX	Lancaster, Seward	27 min
Jun 25, 4:13 PM CDT	Flash Flood Warning	OAX	Dodge	4 hr
Jun 25, 4:22 PM CDT	Tornado Warning	OAX	Lancaster	23 min
Jun 25, 4:32 PM CDT	Severe Thunderstorm Warning	OAX	Otoe	43 min
Jun 25, 4:39 PM CDT	Severe Thunderstorm Warning	OAX	Saline	26 min
Jun 25, 4:45 PM CDT	Severe Thunderstorm Warning	OAX	Lancaster	30 min
Jun 25, 5:06 PM CDT	Flash Flood Warning	OAX	Thurston	6 hr
Jun 25, 5:13 PM CDT	Flash Flood Warning	OAX	Lancaster, Saline, Seward	4 hr
Jun 25, 5:17 PM CDT	Severe Thunderstorm Warning	OAX	Gage, Jefferson, Johnson	43 min
Jun 25, 5:29 PM CDT	Severe Thunderstorm Warning	OAX	Nemaha	46 min
Jun 25, 6:08 PM CDT	Flash Flood Warning	OAX	Otoe	4 hr
Jun 25, 6:47 PM CDT	Flash Flood Warning	OAX	Nemaha, Richardson	4 hr

Nearby

Flash Flood Warnings in Nebraska, 2000 Every flash flood warning in 2000

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.