Alert archive / Nebraska / Flash Flood Warnings in 1990

Flash Flood Warning 6, NWS Hastings, NE

July 19, 1990Clay County, Fillmore County, Nebraska

NWS Hastings, NE issued this flash flood warning at Jul 19, 1990, 2:08 PM CDT for Clay County, Fillmore County, Nebraska. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jul 19, 1990, 2:08 PM CDT (19:08 UTC)
Expired
Jul 19, 1990, 5:15 PM CDT
In force
3 hr
Issued by
NWS Hastings, NE
Area
Whole counties

Counties Clay County, NE, Fillmore County, NE

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 7.1 hours before the alert went out and 151 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-pSkew-T log-p diagram, Omaha, NE at 12:00Z on 1990-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 12:00Z on 1990-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3629 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
82 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 
TTAA00 KGRI 191908
FFWGRI
NEC035-059-192215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING 
NATIONAL WEATHER SERVICE GRAND ISLAND NE
208 PM CDT THU JUL 19 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 515 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE SOUTH CENTRAL PART OF NEBRASKA
      NORTHEAST CLAY...NORTHWEST FILLMORE

AT 145 PM STREET FLOODING WAS REPORTED AT SUTTON NEBRASKA IN NORTH-
EAST CLAY COUNTY NEBRASKA.  RAINFALL OF 4 TO 5 INCHES HAS BEEN
REPORTED FROM THE SUTTON AREA SINCE 1130 THIS MORNING...AND HEAVY
RAIN CONTINUED TO FALL AT 200 PM.  FLASH FLOODING IS LIKELY ALONG
SCHOOL CREEK THIS AFTERNOON IN NORTHEAST CLAY AND NORTHWEST
FILLMORE COUNTIES OF SOUTH CENTRAL NEBRASKA DUE TO THE HEAVY
RAINFALL THE PAST FEW HOURS.  RESIDENTS OF THE SOUTHWEST CORNER
OF YORK COUTNY SHOULD ALSO REMAIN ALERT FOR POSSIBLE FLOODING LATER.

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 AUTO.

DO NOT ATTEMPT TO DRIVE OVER A ROAD COVERED BY WATER.  THE ROAD
COULD BE WASHED OUT UNDTER THE WATER OR YOUR CAR COULD BE SWEEP
AWAY IF THE WATER IS FLOWING SWIFTLY.

 DGS

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 19, 1:52 PM CDT, 16 minutes before
NEZ008-013>015-017>019-191945-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE GRAND ISLAND NE
145 PM CDT THU JUL 19 1990

...THUNDERSTORMS DEVELOPING RAPIDLY IN NORTHWEST KANSAS...

AT 132 PM THUNDERSTORMS HAD FORMED IN NORTHWEST KANSAS...WEST TO
NORTH OF HILL CITY TO THE KANSAS BORDER SOUTH OF LEXINGTON.  VERY
HEAVY RAIN WAS INDICATED IN THESE STORMS.

IN SOUTH CENTRAL NEBRASKA LOCALIZED STREET FLOODING WAS REPORTED
AT SUTTON IN NORTHEAST CLAY COUNTY.  HEAVY RAIN HAS OCCURRED AT
SUTTON SINCE 1130 THIS MORNING.  THUNDERSTORMS HAVE BEEN FORMING AND
MOVING OFF TO THE EAST OVER NORTHERN CLAY INTO NORTHERN FILLMORE
COUNTIES FOR THE PAST SEVERAL HOURS AND WILL RESULT IN LOCALIZED
URBAN AND SMALL STREAM FLOODING IN THOSE AREAS THIS AFTERNOON.

OTHERWISE SHOWERS AND THUNDERSTORMS WERE OVER MUCH OF CENTRAL
NEBRASKA AND SCSTTERED OVER THE EAST.  THE MOST INTENSE RAINFALL
WAS OVER NORTHERN CLAY INTO NORTHWEST FILLMORE COUNTIES...TO THE
EAST OF HASTINGS NEBRASKA.  SCATTERED THUNDERSTORMS WITH HEAVY TO
VERY HEAVY RAIN WERE IN CENTRAL NEBRASKA FROM BETWEEN NORTH PLATTE
AND KEARNEY TO NORTH AND NORTHEAST OF BROKEN BOW...AND IN NORTH
EAST NEBRASKA NORTH OF NORFOLK AND7 WEST OF SIOUX CITY.

ALL PRECIPITATION WAS MOVING TO THE EAST NORTHEAST AT 20 TO 25 MPH.
DGS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 5:36 PM CDTFlash Flood WarningGIDClay, Fillmore3 hr

Nearby

Flash Flood Warnings in Nebraska, 1990Every flash flood warning in 1990

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.