Alert archive / Nebraska / Flash Flood Warnings in 2004

Flash Flood Warning 6, NWS North Platte, NE

July 11, 2004Frontier County, Hayes County, Nebraska

NWS North Platte, NE issued this flash flood warning at Jul 11, 2004, 12:21 AM CDT for Frontier County, Hayes 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: Jul 11, 2004, 12:21 AM CDT (05:21 UTC)
Expired: Jul 11, 2004, 6:15 AM CDT
In force: 6 hr
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

Counties Frontier County, NE, Hayes County, NE

The radar

The Goodland radar (KGLD), 153 km from the middle of the area, began a volume at 05:21 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, 5.4 hours before the alert went out and 67 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: 1649 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1674 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 51 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KLBF 110525
FFWLBF
NEC063-085-111115-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1221 AM CDT SUN JUL 11 2004

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FRONTIER COUNTY IN SOUTHWEST NEBRASKA
  THIS INCLUDES THE CITY OF CURTIS
  CENTRAL HAYES COUNTY IN SOUTHWEST NEBRASKA
  THIS INCLUDES THE CITY OF HAYES CENTER

* UNTIL 615 AM CDT

* AT 1219 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  HEAVY RAIN AMOUNTS IN EXCESS OF 4 INCHES OVER EASTERN HAYES AND    
  WESTERN FRONTIER COUNTIES.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  STOCKVILLE.

ADDITIONAL RAINFALL AMOUNTS OF UP TO THREE INCHES ARE POSSIBLE IN THE 
WARNED AREA.

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.
MOVE TO HIGHER GROUND.

HILLY TERRAIN...ESPECIALLY LOW SPOTS WITHIN CANYONS ARE SUSCEPTIBLE 
TO FLOODING AND RAPIDLY RISING WATER. PERSONS IN THESE AREAS SHOULD 
MOVE TO HIGHER GROUND. 

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

LAT...LON 4064 10122 4038 10123 4038 10016 4066 10000

$$

BUTTLER

1 follow-up statement

000 
WSUS73 KLBF 111122 CCA
FFSLBF
NEC063-085-111200-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
620 AM CDT SUN JUL 11 2004

...FLASH FLOOD WARNING FOR HAYES AND FRONTIER COUNTIES HAS EXPIRED...

THE FLASH FLOOD WARNING IN EFFECT UNTIL 615 AM CDT FOR HAYES AND 
FRONTIER COUNTIES HAS BEEN ALLOWED TO EXPIRE.

AT 615 AM CDT...HEAVY RAIN WHICH PROMPTED THE WARNING HAD MOVED EAST 
OF THE AREA. 

RADAR ESTIMATES OF 2 TO 4 INCH RAIN AMOUNTS WERE COMMON OVER EASTERN 
HAYES AND WESTERN FRONTIER COUNTY FROM LAST NIGHT. 

IF FLOODING OCCURRED...OR DAMAGE FROM FLOODING OCCURRED IN YOUR 
VICINITY...CONTACT LOCAL LAW ENFORCEMENT AND HAVE THEM PASS THE 
REPORT TO THE NATIONAL WEATHER SERVICE IN NORTH PLATTE.

$$

CLB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 8:30 PM CDT	Severe Thunderstorm Warning	LBF	Chase	15 min
Jul 10, 10:59 PM CDT	Severe Thunderstorm Warning	LBF	Logan	61 min

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.