Alert archive / Nebraska / Flash Flood Warnings in 2016

Flash Flood Warning 2, NWS North Platte, NE

May 10, 2016Boyd County, Holt County, Nebraska

NWS North Platte, NE issued this flash flood warning at May 10, 2016, 12:11 AM CDT for Boyd County, Holt 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: May 10, 2016, 12:11 AM CDT (05:11 UTC)
Expired: May 10, 2016, 6:00 AM CDT
In force: 6 hr
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Flood severity: None

Counties Boyd County, NE, Holt County, NE

The radar

The Sioux Falls radar (KFSD), 168 km from the middle of the area, began a volume at 05:11 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

Aberdeen, SD (KABR), launched 00:00Z, 5.2 hours before the alert went out and 224 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: 37 J/kg
Mixed-layer CIN: -109 J/kg
Mixed-layer LCL: 970 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 109 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

660 
WGUS53 KLBF 100511
FFWLBF
NEC015-089-101100-
/O.NEW.KLBF.FF.W.0002.160510T0511Z-160510T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1211 AM CDT TUE MAY 10 2016

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN HOLT COUNTY IN NORTH CENTRAL NEBRASKA...
  EASTERN BOYD COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 600 AM CDT
    
* AT 1206 AM CDT...LOCAL LAW ENFORCEMENT REPORTED WASHED OUT ROADS
  IN EASTERN BOYD COUNTY SOUTHWEST OF BRISTOW. DOPPLER RADAR
  ESTIMATES 4 TO 6 INCHES OF RAIN HAS FALLEN IN EASTERN BOYD AND FAR
  NORTHEASTERN HOLT COUNTY. THE THREAT FOR FLASH FLOODING WILL
  CONTINUE INTO THE OVERNIGHT AS AN ADDITIONAL 1 TO 2 INCHES OF RAIN
  IS POSSIBLE.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  SPENCER...BUTTE...LYNCH...GROSS...BRISTOW...ANOKA...SPENCER DAM...ANNCAR
  AND REDBIRD STATE WILDLIFE MANAGEMENT AREA.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

THIS INCLUDES HIGHWAY 281 BETWEEN MILE MARKERS 201 AND 223.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

IF DRIVING AND WATER IS COVERING THE ROADWAY...DO NOT ATTEMPT TO
DRIVE THROUGH IT. 

&&

LAT...LON 4294 9846 4292 9842 4271 9840 4270 9882
      4300 9886 4300 9850

$$

BUTTLER

2 follow-up statements

361 
WGUS73 KLBF 100749
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
249 AM CDT TUE MAY 10 2016

NEC015-089-101100-
/O.CON.KLBF.FF.W.0002.000000T0000Z-160510T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HOLT NE-BOYD NE-
249 AM CDT TUE MAY 10 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 600 AM CDT FOR
NORTHEASTERN HOLT AND EASTERN BOYD COUNTIES...

AT 248 AM CDT...DOPPLER RADAR INDICATED RAIN ENDING ACROSS THE
WARNED AREA.  FLASH FLOODING IS ALREADY OCCURRING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SPENCER...BUTTE...LYNCH...GROSS...BRISTOW...ANOKA...SPENCER DAM...ANNCAR AND
REDBIRD STATE WILDLIFE MANAGEMENT AREA.

THIS INCLUDES HIGHWAY 281 BETWEEN MILE MARKERS 201 AND 223.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 4294 9846 4292 9842 4271 9840 4270 9882
      4300 9886 4300 9850

$$

POWER

381 
WGUS73 KLBF 101056
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
556 AM CDT TUE MAY 10 2016

NEC015-089-101105-
/O.EXP.KLBF.FF.W.0002.000000T0000Z-160510T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HOLT NE-BOYD NE-
556 AM CDT TUE MAY 10 2016

...THE FLASH FLOOD WARNING FOR NORTHEASTERN HOLT AND EASTERN BOYD
COUNTIES WILL EXPIRE AT 600 AM CDT...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT.

LAT...LON 4294 9846 4292 9842 4271 9840 4270 9882
      4300 9886 4300 9850

$$

POWER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 7:31 PM CDT	Severe Thunderstorm Warning	LBF	Logan, McPherson	44 min
May 9, 8:19 PM CDT	Severe Thunderstorm Warning	LBF	Logan	22 min
May 9, 8:29 PM CDT	Special Weather Statement	LBF	McPherson	46 min
May 9, 8:40 PM CDT	Severe Thunderstorm Warning	LBF	Logan, McPherson	50 min
May 9, 9:00 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln, Logan, McPherson	60 min
May 9, 9:11 PM CDT	Severe Thunderstorm Warning	LBF	Boyd, Holt	34 min
May 9, 9:21 PM CDT	Special Weather Statement	LBF	Holt	39 min
May 9, 9:53 PM CDT	Special Weather Statement	LBF	Boyd	52 min
May 9, 9:55 PM CDT	Special Weather Statement	LBF	Lincoln	50 min
May 9, 9:58 PM CDT	Special Weather Statement	LBF	Rock	47 min
May 9, 10:31 PM CDT	Severe Thunderstorm Warning	LBF	Holt	29 min
May 9, 10:42 PM CDT	Special Weather Statement	LBF	Logan	33 min
May 9, 11:08 PM CDT	Severe Thunderstorm Warning	LBF	Holt	37 min
May 9, 11:10 PM CDT	Severe Thunderstorm Warning	LBF	Holt, Rock	35 min
May 9, 11:14 PM CDT	Special Weather Statement	LBF	Logan	31 min
May 9, 11:52 PM CDT	Areal Flood Advisory	LBF	Holt	6 hr
May 10, 12:53 PM CDT	Flash Flood Watch	LBF	Boyd, Custer, Garfield, Holt, Keya Paha, Loup and 2 more	17 hr
May 10, 3:10 PM CDT	Special Weather Statement	LBF	Boyd	35 min
May 10, 3:24 PM CDT	Severe Thunderstorm Warning	LBF	Boyd, Holt	36 min
May 10, 4:10 PM CDT	Special Weather Statement	LBF	Holt	35 min
May 10, 5:57 PM CDT	Areal Flood Warning	LBF	Holt	48 hr

Nearby

Flash Flood Warnings in Nebraska, 2016 Every flash flood warning in 2016

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.