Alert archive / Nebraska / Flash Flood Warnings in 2004

Flash Flood Warning 5, NWS North Platte, NE

July 1, 2004Sheridan County, Nebraska

NWS North Platte, NE issued this flash flood warning at Jul 1, 2004, 9:20 PM MDT for Sheridan County, Nebraska. It was in force for 3 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: Jul 1, 2004, 9:20 PM MDT (03:20 UTC)
Expired: Jul 2, 2004, 12:15 AM MDT
In force: 3 hr
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

County Sheridan County, NE

The radar

The Rapid City radar (KUDX), 135 km from the middle of the area, began a volume at 03:23 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

Rapid City, SD (KUNR), launched 00:00Z, 3.3 hours before the alert went out and 130 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: 190 J/kg
Mixed-layer CIN: -109 J/kg
Mixed-layer LCL: 1627 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 92 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 KLBF 020323
FFWLBF
NEC161-020615-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
920 PM MDT THU JUL 1 2004

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN SHERIDAN COUNTY IN THE PANHANDLE OF NEBRASKA

* UNTIL 1215 AM MDT

* AT 917 PM MDT...THE PUBLIC REPORTED ESTIMATED RAINFALL RATES OF
  TWO INCHES PER HOUR FROM A THUNDERSTORM OVER NORTH CENTRAL
  SHERIDAN COUNTY...OR ABOUT 16 MILES NORTH OF RUSHVILLE. THE STORM
  PRODUCING FLASH FLOODING WAS NEARLY STATIONARY.

* THE STORM PRODUCING THE HEAVY RAIN WILL OTHERWISE REMAIN OVER
  RURAL AREAS OF NORTHERN SHERIDAN COUNTY.

ADDITIONAL RAINFALL AMOUNTS OF TWO INCHES OR MORE ARE POSSIBLE IN 
THE WARNED AREA.

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.

LAT...LON 4281 10212 4300 10210 4322 10332 4277 10337

$$

SPRINGER

1 follow-up statement

000 
WSUS73 KLBF 020438
FFSLBF
NEC161-020615-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1035 PM MDT THU JUL 1 2004

THE FLASH FLOOD WARNING ISSUED EARLIER FOR NORTHERN SHERIDAN COUNTY 
HAS BEEN CANCELLED.

ADDITIONAL RAINFALL AMOUNTS OF 1/4 INCH OR LESS ARE LIKELY TO 
CONTINUE...BUT EXCESSIVE RUNOFF IS NOT LIKELY.

PLEASE REPORT ANY NEW FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY 
FOR FORWARDING TO THE NATIONAL WEATHER SERVICE IN NORTH PLATTE.

LAT...LON 4281 10212 4300 10210 4322 10332 4277 10337

$$

SPRINGER

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.