Alert archive / Nebraska / Flash Flood Warnings in 2004
Flash Flood Warning 5, NWS Cheyenne, WY
NWS Cheyenne, WY issued this flash flood warning at Jun 30, 2004, 7:45 PM MDT for Dawes County, Nebraska. It was in force for 2 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
- Jun 30, 2004, 7:45 PM MDT (01:45 UTC)
- Expired
- Jun 30, 2004, 9:45 PM MDT
- In force
- 2 hr
- Issued by
- NWS Cheyenne, WY
- Area
- Counties, with a storm outline in the text
County Dawes County, NE
The radar
The Rapid City radar (KUDX), 148 km from the middle of the area, began a volume at 01:47 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, 1.8 hours before the alert went out and 141 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.
- Mixed-layer CAPE
- 477 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 2248 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS55 KCYS 010146 FFWCYS NEC045-010345- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 745 PM MDT WED JUN 30 2004 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHERN DAWES COUNTY IN THE PANHANDLE OF NEBRASKA THIS INCLUDES THE CITY OF CHADRON * UNTIL 945 PM MDT * AT 745 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED LIKELY FLASH FLOODING FROM THUNDERSTORMS ACROSS MUCH OF NORTHERN DAWES COUNTY. * THE THUNDERSTORMS PRODUCING FLASH FLOODING WILL BE ACROSS... NORTHERN DAWES COUNTY THROUGH 945 PM. THIS FLASH FLOOD WARNING REPLACES THE EARLIER FLASH FLOOD WARNING FOR CENTRAL DAWES COUNTY. ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES PER HOUR WILL OCCUR WITH THE STRONGER STORMS. 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. 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. IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY. 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 CHEYENNE. LAT...LON 4271 10336 4271 10280 4297 10282 4297 10345 $$ RUBIN
2 follow-up statements
000 WGUS75 KCYS 010258 FFSCYS NEC045-010345- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 858 PM MDT WED JUN 30 2004 ...A FLASH FLOOD WARNING CONTINUES UNTIL 945 PM MDT FOR DAWES COUNTY IN THE PANHANDLE OF NEBRASKA... AT 858 PM MDT...THUNDERSTORMS WITH MODERATE TO HEAVY RAINFALL COVERED MUCH OF DAWES COUNTY...PRIMARILY IN THE WESTERN AND SOUTHERN SECTIONS OF THE COUNTY. NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LARGE AREA OF ONE TO TWO INCH RAINFALL ACROSS THE NORTHERN AND WESTERN HALVES OF DAWES COUNTY. DOPPLER RADAR INDICATED THAT RAINFALL AMOUNTS OF TWO TO FIVE INCHES OF RAIN HAD FALLEN IN A 10 MILE WIDE SWATH FROM 10 MILES SOUTHWEST OF CHADRON TO 5 MILES EAST OF CHADRON. SLOW MOVING THUNDERSTORMS ARE PRODUCING VERY HEAVY RAINFALL IN THE WARNED AREA. EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...CHADRON... CHIMNEY BUTTE...BELMONT...RIDGEVIEW GOLF CLUB...CHADRON AIRPORT AND WHITNEY LAKE. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AN AREA WHEN WATER BEGINS RISING. MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS...ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. $$ RUBIN
000 WGUS75 KCYS 010335 FFSCYS NEC045-010430- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 935 PM MDT WED JUN 30 2004 ...THE FLASH FLOOD WARNING FOR DAWES COUNTY WILL EXPIRE AT 945 PM... THE THUNDERSTORMS THAT HAVE PRODUCED HEAVY RAINFALL AMOUNTS THIS EVENING ARE TAPERING OFF AND THE THREAT OF FLASH FLOODING HAS DIMINISHED. THEREFORE THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT 945 PM. RAIN WILL CONTINUE FOR THE NEXT FEW HOURS IN DAWES COUNTY AND AREAS THAT HAVE HAD HEAVY RAIN EARLIER TONIGHT COULD POSSIBLY STILL SEE PONDING OF WATER IN LOW LAYING AREAS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AN AREA WHEN WATER BEGINS RISING. $$ GRIFFITH
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 7:11 PM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff | 64 min |
Nearby
Flash Flood Warnings in Nebraska, 2004Every 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.