Alert archive / Nebraska / Flash Flood Warnings in 2004

Flash Flood Warning 2, NWS Hastings, NE

May 18, 2004Adams County, Nebraska

NWS Hastings, NE issued this flash flood warning at May 18, 2004, 12:49 AM CDT for Adams County, Nebraska. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 18, 2004, 12:49 AM CDT (05:49 UTC)
Expired: May 18, 2004, 6:30 AM CDT
In force: 6 hr
Issued by: NWS Hastings, NE
Area: Counties, with a storm outline in the text

County Adams County, NE

The radar

The Grand Island radar (KUEX), 20 km from the middle of the area, began a volume at 05:52 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 5.8 hours before the alert went out and 188 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 692 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 184 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 KGID 180549
FFWGID
NEC001-181130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
1249 AM CDT TUE MAY 18 2004

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ADAMS COUNTY IN SOUTH CENTRAL NEBRASKA

* UNTIL 630 AM CDT

* AT 1246 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR 
  INDICATED FLASH FLOODING FROM A BAND OF THUNDERSTORMS 3 MILES 
  SOUTHWEST OF AYR...OR ABOUT 14 MILES SOUTH OF HASTINGS...MOVING 
  EAST AT 40 MPH.

* THE STORM PRODUCING FLASH FLOODING WILL OTHERWISE REMAIN OVER
  MAINLY RURAL AREAS OF THE INDICATED COUNTY.

ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE 
BANKS OF CREEKS AND STREAMS.  THE LITTLE BLUE RIVER WILL BE 
EXTREMELY VULNERABLE TO FLASH FLOODING OVER THE NEXT SEVERAL HOURS 
AS HEAVY RAINFALL CONTINUES OVER THIS BASIN. THE CRYSTAL LAKE AREA 
NEAR AYR WILL ALSO BE VULNERABLE TO FLASH FLOODING OVER THE NEXT FEW 
HOURS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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.

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

LAT...LON 4056 9871 4035 9872 4035 9828 4059 9829

$$

AWJ

1 follow-up statement

000 
WGUS73 KGID 180756
FFSGID
NEC001-035-181145-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
247 AM CDT TUE MAY 18 2004

...FLASH FLOOD WARNING CONTINUES UNTIL 645 AM CDT FOR PEOPLE IN THE
FOLLOWING COUNTIES...

IN SOUTH CENTRAL NEBRASKA
     ADAMS AND CLAY

AT 245 AM CDT...HEAVY RAIN HAD MOVED JUST EAST AND SOUTH OF THE 
AREA...BUT LIGHT TO MODERATE RAIN WILL CONTINUE THROUGH 4 AM. 
ADDITIONAL RAINFALL OF ONE QUARTER TO ONE HALF INCH IS 
LIKELY...MAINLY ACROSS SOUTHERN ADAMS AND ALL OF CLAY COUNTY. 

SINCE 11 PM...DOPPLER RADAR RAINFALL ESTIMATED 2 TO POSSIBLY 5 
INCHES OF RAIN HAD FALLEN FROM JUST SOUTHWEST OF CLAY CENTER IN CLAY 
COUNTY...WEST TO AYR IN SOUTHERN ADAMS COUNTY...AND THEN TO SOUTH OF 
HOLSTEIN.

IN ADAMS COUNTY...THE HEAVIEST RAIN FELL AROUND AYR AND JUST WEST. 
MOST OF THE RAIN FELL INTO THE LITTLE BLUE RIVER BASIN AND ITS 
TRIBUTARIES. FLOODING IS POSSIBLE ALONG SAND...FLAT AND COTTONWOOD 
CREEKS IN SOUTHWEST ADAMS COUNTY. FLOODING IS ALSO POSSIBLE ALONG 
THE PAWNEE CREEK IN EASTERN ADAMS. RAPID RISES AREA LIKELY WITHIN 
THESE STREAMS. FLOODING OF LOW WATER CROSSINGS IS LIKELY. YOU SHOULD 
MOVE TO HIGHER GROUND SHOULD FLOOD WATERS APPROACH YOUR AREA. 

MINOR FLOODING HAS ALREADY BEEN REPORTED OVER THE CRYSTAL LAKE ROAD 
NEAR AYR EARLY THIS MORNING. 

IN CLAY COUNTY...THE HEAVIEST RAIN FELL MIDWAY BETWEEN FAIRFIELD AND 
GLENVIL...AND IN THE BIG SANDY AND PAWNEE STREAMS. AGAIN...RAPID 
RISES ARE POSSIBLE ALONG THESE STREAMS. 

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

LAT...LON 4070 9872 4069 9782 4035 9783 4035 9815
          4034 9816 4034 9872
$$

NOAA/NWS/MORITZ

The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 10:17 PM CDT	Severe Thunderstorm Warning	GID	Adams	43 min
May 17, 11:43 PM CDT	Severe Thunderstorm Warning	GID	Kearney	62 min
May 18, 12:32 AM CDT	Flash Flood Warning	GID	Clay	6 hr
May 18, 1:02 AM CDT	Flash Flood Warning	GID	Franklin	6 hr

Nearby

Flash Flood Warnings in Nebraska, 2004 Every flash flood warning in 2004

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.