Alert archive / Nebraska / Flash Flood Warnings in 2014

Flash Flood Warning 3, NWS North Platte, NE

June 21, 2014Frontier County, Hayes County, Nebraska

NWS North Platte, NE issued this flash flood warning at Jun 21, 2014, 11:30 PM 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
Jun 21, 2014, 11:30 PM CDT (04:30 UTC)
Expired
Jun 22, 2014, 5:30 AM CDT
In force
6 hr
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Flood severity
None

Counties Frontier County, NE, Hayes County, NE

The radar

The Goodland radar (KGLD), 135 km from the middle of the area, began a volume at 04:30 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, 4.5 hours before the alert went out and 83 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 00:00Z on 2014-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1330 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 00:00Z on 2014-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.193958Sfc1 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
1330 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
1972 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
-1 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.

960 
WGUS53 KLBF 220430
FFWLBF
NEC063-085-221030-
/O.NEW.KLBF.FF.W.0003.140622T0430Z-140622T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1130 PM CDT SAT JUN 21 2014

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN HAYES COUNTY IN SOUTHWEST NEBRASKA...
  SOUTHWESTERN FRONTIER COUNTY IN SOUTHWEST NEBRASKA...

* UNTIL 530 AM CDT SUNDAY

* AT 1128 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. RADAR ESTIMATES TWO TO FOUR INCHES OF RAIN HAS FALLEN 
  OVER THE WARNING AREA...WITH THE POTENTIAL OF AN ADDITIONAL ONE OR 
  TWO INCHES OVERNIGHT.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO   
  OCCUR.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
BLACKWOOD CREEK...RED WILLOW CREEK...FRENCHMAN CREEK...LITTLE
BLACKWOOD CREEK...SPRING CREEK AND DRY CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4046 10103 4046 10069 4035 10069 4034 10102

$$

JACOBS
2 follow-up statements
062 
WGUS73 KLBF 220703
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
203 AM CDT SUN JUN 22 2014

NEC063-085-221030-
/O.CON.KLBF.FF.W.0003.000000T0000Z-140622T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRONTIER NE-HAYES NE-
203 AM CDT SUN JUN 22 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHEASTERN HAYES AND
SOUTHWESTERN FRONTIER COUNTIES UNTIL 530 AM CDT...

AT 201 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
LIGHT RAIN ACROSS THE WARNED AREA. ADDITIONAL THUNDERSTORMS ARE 
POSSIBLE OVERNIGHT.

RADAR INDICATED 2 TO 4 INCHES OF RAIN HAD FALLEN IN THIS AREA.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO 
OCCUR.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...BLACKWOOD 
CREEK...RED WILLOW CREEK...FRENCHMAN CREEK...LITTLE BLACKWOOD 
CREEK...SPRING CREEK AND DRY CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4046 10103 4046 10069 4035 10069 4034 10102

$$

CDC
407 
WGUS73 KLBF 221028
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
528 AM CDT SUN JUN 22 2014

NEC063-085-221030-
/O.CON.KLBF.FF.W.0003.000000T0000Z-140622T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRONTIER NE-HAYES NE-
528 AM CDT SUN JUN 22 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHEASTERN HAYES AND
SOUTHWESTERN FRONTIER COUNTIES UNTIL 530 AM CDT...

AT 525 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
ISOLATED SHOWERS ACROSS THE WARNED AREA. RADAR ESTIMATED UP TO 5 
INCHES OF RAIN FELL IN THIS AREA.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...BLACKWOOD 
CREEK...RED WILLOW CREEK...FRENCHMAN CREEK...LITTLE BLACKWOOD 
CREEK...SPRING CREEK AND DRY CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4046 10103 4046 10069 4035 10069 4034 10102

$$

CDC

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 10:06 PM CDTSevere Thunderstorm WarningLBFChase39 min
Jun 22, 12:05 AM CDTAreal Flood AdvisoryLBFCuster, Lincoln3 hr
Jun 22, 12:19 AM CDTSevere Thunderstorm WarningLBFFrontier41 min
Jun 22, 12:55 AM CDTAreal Flood AdvisoryLBFCuster3 hr
Jun 22, 3:07 AM CDTAreal Flood AdvisoryLBFBlaine, Boyd, Brown, Custer, Holt, Keya Paha and 3 more3 hr
Jun 22, 3:44 AM CDTAreal Flood AdvisoryLBFCuster, Lincoln3 hr

Nearby

Flash Flood Warnings in Nebraska, 2014Every flash flood warning in 2014

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.