Alert archive / Nebraska / Flash Flood Warnings in 2008

Flash Flood Warning 8, NWS North Platte, NE

June 4, 2008Frontier County, Nebraska

NWS North Platte, NE issued this flash flood warning at Jun 4, 2008, 5:36 PM CDT for Frontier County, Nebraska. It was in force for 84 min. 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 4, 2008, 5:36 PM CDT (22:36 UTC)
Expired
Jun 4, 2008, 7:00 PM CDT
In force
84 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Flood severity
None

County Frontier County, NE

The radar

The North Platte radar (KLNX), 150 km from the middle of the area, began a volume at 22:39 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 12:00Z, 10.6 hours before the alert went out and 64 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, N. Platte/Lee Bi, NE at 12:00Z on 2008-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 285 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 12:00Z on 2008-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 square meters per square second.1939587897Sfc1 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
285 J/kg
Mixed-layer CIN
-173 J/kg
Mixed-layer LCL
1268 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
-23 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 
WGUS53 KLBF 042238
FFWLBF
NEC063-050000-
/O.NEW.KLBF.FF.W.0008.080604T2236Z-080605T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
536 PM CDT WED JUN 4 2008

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN FRONTIER COUNTY IN SOUTHWEST NEBRASKA...

* UNTIL 700 PM CDT

* AT 530 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. HIGHWAY 23 
BETWEEN MOOREFIELD AND EUSTIS COULD BE IMPASSABLE.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EUSTIS

ADDITIONAL RAINFALL AMOUNTS OF 1 INCH IS POSSIBLE IN THE WARNED AREA 
WITH STORM TOTALS AROUND 2 INCHES.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 4068 10038 4069 9998 4055 9999 4056 10039
TIME...MOT...LOC 2236Z 180DEG 0KT 4065 10012

$$

CDC
3 follow-up statements
000 
WGUS73 KLBF 042302
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
559 PM CDT WED JUN 4 2008

NEC063-050000-
/O.CON.KLBF.FF.W.0008.000000T0000Z-080605T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRONTIER NE-
559 PM CDT WED JUN 4 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
NORTHEASTERN FRONTIER COUNTY...

AT 553 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS PRODUCING 
ADDITIONAL HEAVY RAINFALL AND FLASH FLOODING OVER THE WARNED AREA. 
HIGHWAY 23 BETWEEN MOOREFIELD AND EUSTIS MAY BE FLOODED.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EUSTIS

ADDITIONAL RAINFALL AMOUNTS OF 1/2 INCH IS LIKELY THROUGH 7 PM CDT 
IN THE WARNED AREA.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

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 TAKES ONLY A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT WEDNESDAY EVENING
FOR NORTH CENTRAL NEBRASKA.

LAT...LON 4068 10038 4069 9998 4055 9999 4056 10039
TIME...MOT...LOC 2259Z 180DEG 0KT 4065 10011

$$

CDC
000 
WGUS73 KLBF 042338
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
637 PM CDT WED JUN 4 2008

NEC063-050000-
/O.CON.KLBF.FF.W.0008.000000T0000Z-080605T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRONTIER NE-
637 PM CDT WED JUN 4 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
NORTHEASTERN FRONTIER COUNTY...

AT 630 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE 
THUNDERSTORMS WHICH PRODUCED FLASH FLOODING HAD EXITED THE WARNED 
AREA. NO ADDITIONAL RAIN IS EXPECTED THROUGH 7 PM.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EUSTIS

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.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT WEDNESDAY EVENING
FOR NORTH CENTRAL NEBRASKA.

LAT...LON 4068 10038 4069 9998 4055 9999 4056 10039
TIME...MOT...LOC 2337Z 180DEG 0KT 4066 10004

$$

CDC
000 
WGUS73 KLBF 042356
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
656 PM CDT WED JUN 4 2008

NEC063-050006-
/O.EXP.KLBF.FF.W.0008.000000T0000Z-080605T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRONTIER NE-
656 PM CDT WED JUN 4 2008

...THE FLASH FLOOD WARNING WILL EXPIRE AT 700 PM CDT/600 PM MDT/ FOR
NORTHEASTERN FRONTIER COUNTY...

THE HEAVY RAIN HAS EXITED THE WARNED AREA FOR NOW. ADDITIONAL 
THUNDERSTORMS ARE POSSIBLE THIS EVENING WHICH WOULD PROMPT MORE 
FLOOD WARNINGS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT WEDNESDAY EVENING
FOR NORTH CENTRAL NEBRASKA.

LAT...LON 4068 10038 4069 9998 4055 9999 4056 10039
TIME...MOT...LOC 2356Z 180DEG 0KT 4066 10004

$$

CDC

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 3, 7:09 PM CDTTornado WarningLBFCherry, Hooker, Thomas51 min
Jun 3, 7:20 PM CDTTornado WarningLBFCherry, Hooker, Thomas40 min
Jun 3, 7:32 PM CDTTornado WarningLBFHooker, Thomas43 min
Jun 3, 7:57 PM CDTSevere Thunderstorm WarningLBFBlaine, Custer, Logan, Thomas24 min
Jun 3, 8:14 PM CDTTornado WarningLBFBlaine, Thomas46 min
Jun 3, 8:55 PM CDTSevere Thunderstorm WarningLBFCuster50 min
Jun 3, 9:44 PM CDTSevere Thunderstorm WarningLBFCuster46 min
Jun 4, 4:17 AM CDTFlash Flood WatchLBFBlaine, Boyd, Brown, Chase, Cherry, Custer and 15 more49 hr
Jun 4, 4:24 PM CDTSevere Thunderstorm WarningLBFFrontier, Lincoln39 min
Jun 4, 4:36 PM CDTTornado WarningLBFFrontier24 min
Jun 4, 4:57 PM CDTTornado WarningLBFFrontier, Lincoln33 min
Jun 4, 5:27 PM CDTTornado WarningLBFFrontier18 min
Jun 4, 5:38 PM CDTSevere Thunderstorm WarningLBFChase, Perkins52 min
Jun 4, 5:41 PM CDTTornado WarningLBFChase34 min
Jun 4, 6:14 PM CDTTornado WarningLBFChase31 min
Jun 4, 6:15 PM CDTAreal Flood WarningLBFHolt5 hr
Jun 4, 6:22 PM CDTFlash Flood WarningLBFChase113 min
Jun 4, 6:35 PM CDTTornado WarningLBFChase, Hayes25 min
Jun 4, 6:47 PM CDTTornado WarningLBFChase14 min
Jun 4, 6:50 PM CDTSevere Thunderstorm WarningLBFGarden, Grant, Sheridan55 min
Jun 4, 6:58 PM CDTTornado WarningLBFChase, Hayes32 min

Nearby

Flash Flood Warnings in Nebraska, 2008Every flash flood warning in 2008

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.