Alert archive / Nebraska / Flash Flood Warnings in 2013

Flash Flood Warning 6, NWS North Platte, NE

June 16, 2013Custer County, Nebraska

NWS North Platte, NE issued this flash flood warning at Jun 16, 2013, 6:39 PM CDT for Custer 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 16, 2013, 6:39 PM CDT (23:39 UTC)
Expired: Jun 17, 2013, 12:30 AM CDT
In force: 6 hr
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Flood severity: None

County Custer County, NE

The radar

The North Platte radar (KLNX), 118 km from the middle of the area, began a volume at 23:40 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.7 hours before the alert went out and 80 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: 2248 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 659 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.1

Open this sounding in Storm Lab

The text

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

490 
WGUS53 KLBF 162339
FFWLBF
NEC041-170530-
/O.NEW.KLBF.FF.W.0006.130616T2339Z-130617T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
639 PM CDT SUN JUN 16 2013

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN CUSTER COUNTY IN CENTRAL NEBRASKA...

* UNTIL 1230 AM CDT

* AT 635 PM CDT...TRAINED WEATHER SPOTTERS REPORTED FLASH FLOODING 
  ACROSS PORTIONS OF SOUTHERN CUSTER COUNTY NEAR OCONTO. RED FERN 
  ROAD IS CLOSED WEST OF OCONTO WITH SEVERAL FEET OF WATER OVER THE  
  ROADWAY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...ANSLEY...
  BERWYN...CALLAWAY...MASON CITY AND OCONTO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF UP TO AN INCH ARE POSSIBLE IN THE WARNED 
AREA.

IN HILLY TERRAIN THERE ARE NUMEROUS 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.

&&

LAT...LON 4106 9920 4104 9982 4104 10023 4136 10021
      4138 9921

$$

BUTTLER

1 follow-up statement

643 
WGUS73 KLBF 170315
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1015 PM CDT SUN JUN 16 2013

NEC041-170330-
/O.CAN.KLBF.FF.W.0006.000000T0000Z-130617T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUSTER NE-
1015 PM CDT SUN JUN 16 2013

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHERN CUSTER
COUNTY IS CANCELLED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN 
OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY AND 
HAVE THEM RELAY THE REPORT TO THE NATIONAL WEATHER SERVICE IN NORTH 
PLATTE. 

LAT...LON 4106 9920 4104 9982 4104 10023 4136 10021
      4138 9921

$$

BUTTLER

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS North Platte, NE wrote its last area forecast discussion before this flash flood warning went out at Jun 16, 3:16 PM CDT, 3 hours 23 minutes earlier.

Area forecast discussion, Jun 16, 3:16 PM CDT, 3 hours 23 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
316 PM CDT SUN JUN 16 2013

.SHORT TERM...(THIS EVENING THROUGH MONDAY)
ISSUED AT 316 PM CDT SUN JUN 16 2013

THUNDERSTORMS...INCLUDING A FEW SUPERCELLS...CONTINUE TO DEVELOP
THIS AFTERNOON ALONG A DRY LINE IN THE EASTERN PANHANDLE AND
WESTERN PORTIONS OF SOUTHWEST NEBRASKA. IN ADDITION...SUPERCELL
STORMS IN DAWES AND NORTHWEST CHERRY COUNTY DROPPING SOUTH. STORMS
FORECAST TO CONGEAL INTO A CLUSTER OF STORMS FROM NEAR HYANNIS
THROUGH TRYON...NORTH PLATTE AND STOCKVILLE. A CORRIDOR OF 70 POPS
THROUGH THIS CORRIDOR. VERY LARGE HAIL IS POSSIBLE WITH THE SYSTEM
EVOLVING INTO A LINEAR SYSTEM AS IT MOVES INTO NRN KANSAS THIS
EVENING. CHANCE POPS ACROSS THE SOUTHEAST MID EVENING TO END BY
06Z WITH NO WX/POPS AFTER 06Z EXPECTED.

ON MONDAY...SEVERE STORMS POSSIBLE ALONG THE HIGH PLAINS TO OUR
WEST OFF THE CREST OF THE UPPER RIDGE. UPSLOPE FLOW WILL BE WIDESPREAD
ACROSS THE CENTRAL PLAINS WITH BEST LIFT AND CONVERGENCE NEAR THE
FOOTHILLS. HAVE INCREASE LOW CHANCE POPS AS FAR EAST AS MULLEN
THROUGH NORTH PLATTE AND HAYES CENTER BY LATE AFTERNOON.

.LONG TERM...(MONDAY NIGHT THROUGH SUNDAY)
ISSUED AT 316 PM CDT SUN JUN 16 2013

STORMS SHOULD REMAIN CONFINED TO THE SOUTHWESTERN HALF OF THE
FORECAST AREA MONDAY NIGHT. AT LEAST A SLIGHT CHANCE ALL AREAS
EXCEPT THE FAR NORTHEAST TUESDAY. GENERAL THUNDERSTORMS EXPECTED
WITH DEEP LAYER SHEAR OF ONLY 20-25KTS.

FOR WEDNESDAY THROUGH SUNDAY...A CLOSED UPPER LOW WILL LIFT FROM
THE PACIFIC NORTHWEST WEDNESDAY TO NORTH OF MONTANA BY SUNDAY.
UPPER RIDGE AXIS OVER THE PLAINS WILL MOVE EAST AS FLOW BECOMES
SOUTHWEST ALOFT. THIS WILL BRING IN WARMER TEMPERATURES IN THE
UPPER 80S TO LOW 90S. MID 90S POSSIBLE IN SOUTHWEST NEBRASKA.
THERE WILL BE AT LEAST A SLIGHT CHANCE FOR THUNDERSTORMS
DAILY...WITH THE BEST COVERAGE/CHANCES DURING THE
EVENING/OVERNIGHT.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z MONDAY AFTERNOON)
ISSUED AT 1239 PM CDT SUN JUN 16 2013

THE RISK FOR HAIL AND GUSTY WINDS WITH THUNDERSTORM ACTIVITY THIS
AFTERNOON AND EVENING ARE THE PRIMARY AVIATION CONCERNS IN WESTERN
NEBRASKA FOR THE CURRENT TAF PERIOD. STORMS ARE EXPECTED TO
FURTHER DEVELOP ACROSS NORTHERN NEBRASKA AND POSSIBLY IN THE
PANHANDLE EARLY THIS AFTERNOON. THE STORMS WILL TRACK SOUTH AND
EAST AND HAVE THE POTENTIAL TO PRODUCE LARGE HAIL AND GUSTY
NORTHWEST WINDS BEFORE MOVING OUT OF THE AREA THIS EVENING. THE
OVERNIGHT LOOKS QUIET WITH PREVAILING VFR CONDITIONS.

&&

.LBF WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

SHORT TERM...ROBERG
LONG TERM...ROBERG
AVIATION...MARTIN

Hazardous weather outlook, Jun 16, 3:33 PM CDT, 3 hours 6 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTH PLATTE NE
333 PM CDT SUN JUN 16 2013

NEZ004>010-022>029-035>038-056>059-069>071-094-172045-
SHERIDAN-EASTERN CHERRY-KEYA PAHA-BOYD-BROWN-ROCK-HOLT-GARDEN-
GRANT-HOOKER-THOMAS-BLAINE-LOUP-GARFIELD-WHEELER-ARTHUR-MCPHERSON-
LOGAN-CUSTER-DEUEL-KEITH-PERKINS-LINCOLN-CHASE-HAYES-FRONTIER-
WESTERN CHERRY-
333 PM CDT SUN JUN 16 2013 /233 PM MDT SUN JUN 16 2013/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND
NORTH CENTRAL NEBRASKA.

.DAY ONE...LATE THIS AFTERNOON AND TONIGHT.

SEVERE THUNDERSTORMS WILL OCCUR ACROSS POTIONS OF WESTERN NEBRASKA
LATE THIS AFTERNOON INTO EARLY THIS EVENING. THE GREATEST RISK FOR
LARGE HAIL IS WEST OF A LINE FROM VALENTINE THROUGH BROKEN BOW. DAMAGING
WIND IS POSSIBLE IN THAT AREA AS WELL. THUNDERSTORMS ARE LIKELY TO
CONGEAL INTO A LARGE CLUSTER OF STORMS IN SOUTHWEST NEBRASKA EARLY
THIS EVENING. THUNDERSTORMS ARE EXPECTED TO END OR EXIT THE AREA
BY LATE EVENING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THERE IS A POSSIBILITY OF SEVERE THUNDERSTORMS AGAIN MONDAY IN
THE SOUTHERN NEBRASKA PANHANDLE AND EXTREME SOUTHWEST NEBRASKA.

A POSSIBILITY FOR THUNDERSTORMS REMAINS EACH AFTERNOON AND
EVENING THROUGH SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.

&&

THIS PRODUCT IS NOW AVAILABLE...ALONG WITH OTHER WEATHER...
HYDROLOGICAL AND CLIMATOLOGICAL INFORMATION...AT
HTTP://WWW.WEATHER.GOV/NORTHPLATTE

KAR

In the hours before

Local storm report, Jun 16, 5:47 PM CDT, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
547 PM CDT SUN JUN 16 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0523 PM     HAIL             1 N RINGGOLD            41.53N 100.77W
06/16/2013  E1.00 INCH       MCPHERSON          NE   PUBLIC

            GROUND WAS COVERED IN HAIL.

&&

MARTIN

Local storm report, Jun 16, 5:49 PM CDT, 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
549 PM CDT SUN JUN 16 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0515 PM     HAIL             4 N THEDFORD            42.04N 100.57W
06/16/2013  E2.00 INCH       THOMAS             NE   PUBLIC

&&

SNIVELY

Local storm report, Jun 16, 5:59 PM CDT, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
559 PM CDT SUN JUN 16 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0540 PM     TSTM WND GST     9 S ARNOLD              41.29N 100.19W
06/16/2013  E60 MPH          CUSTER             NE   PUBLIC

            WINDS WERE ACCOMPANIED BY NICKEL SIZE HAIL

&&

SNIVELY

Local storm report, Jun 16, 6:04 PM CDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
604 PM CDT SUN JUN 16 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 PM     TSTM WND GST     4 E BROKEN BOW          41.41N 99.56W
06/16/2013  E0 MPH           CUSTER             NE   EMERGENCY MNGR

            ESTIMATED WIND GUST OF 50 TO 70 MPH.

&&

JGOMEZ

Local storm report, Jun 16, 6:05 PM CDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE NORTH PLATTE NE
605 PM CDT SUN JUN 16 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 PM     TSTM WND GST     4 E BROKEN BOW          41.41N 99.56W
06/16/2013  E60.00 MPH       CUSTER             NE   EMERGENCY MNGR

            ESTIMATED WIND GUST OF 50 TO 70 MPH.

&&

JGOMEZ

Local storm report, Jun 16, 6:38 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
638 PM CDT SUN JUN 16 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0605 PM     HEAVY RAIN       8 S CALLAWAY            41.18N 99.92W
06/16/2013  E1.45 INCH       CUSTER             NE   CO-OP OBSERVER

            1.45 INCHES OF RAIN FELL WITHIN 15 MINUTES.

&&

JGOMEZ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 8:26 AM CDT	Severe Thunderstorm Warning	LBF	Hooker, Thomas	49 min
Jun 16, 8:54 AM CDT	Severe Thunderstorm Warning	LBF	Logan, Thomas	51 min
Jun 16, 3:11 PM CDT	Severe Thunderstorm Warning	LBF	Perkins	49 min
Jun 16, 3:32 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	43 min
Jun 16, 3:40 PM CDT	Tornado Warning	LBF	Cherry	35 min
Jun 16, 3:53 PM CDT	Severe Thunderstorm Warning	LBF	Chase, Perkins	37 min
Jun 16, 3:55 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	50 min
Jun 16, 4:13 PM CDT	Tornado Warning	LBF	Cherry, Grant	32 min
Jun 16, 4:24 PM CDT	Severe Thunderstorm Warning	LBF	Sheridan	51 min
Jun 16, 4:25 PM CDT	Severe Thunderstorm Warning	LBF	Chase, Hayes, Perkins	50 min
Jun 16, 4:36 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Logan	39 min
Jun 16, 4:41 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln, Logan, McPherson	49 min
Jun 16, 4:42 PM CDT	Severe Thunderstorm Warning	LBF	Cherry, Grant, Hooker	48 min
Jun 16, 4:46 PM CDT	Severe Thunderstorm Warning	LBF	Cherry, Thomas	44 min
Jun 16, 5:01 PM CDT	Severe Thunderstorm Warning	LBF	Custer	44 min
Jun 16, 5:03 PM CDT	Severe Thunderstorm Warning	LBF	Custer	27 min
Jun 16, 5:06 PM CDT	Severe Thunderstorm Warning	LBF	Grant, Hooker	39 min
Jun 16, 5:07 PM CDT	Severe Thunderstorm Warning	LBF	Sheridan	53 min
Jun 16, 5:09 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Lincoln	51 min
Jun 16, 5:27 PM CDT	Severe Thunderstorm Warning	LBF	Cherry, Grant	48 min
Jun 16, 5:28 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Thomas	47 min
Jun 16, 5:41 PM CDT	Severe Thunderstorm Warning	LBF	Hooker, McPherson	49 min
Jun 16, 5:52 PM CDT	Severe Thunderstorm Warning	LBF	Garden, Sheridan	38 min
Jun 16, 5:58 PM CDT	Severe Thunderstorm Warning	LBF	Grant, Hooker	47 min
Jun 16, 5:58 PM CDT	Severe Thunderstorm Warning	LBF	Custer	47 min
Jun 16, 6:00 PM CDT	Severe Thunderstorm Warning	LBF	Custer	45 min
Jun 16, 6:03 PM CDT	Tornado Warning	LBF	Custer	27 min
Jun 16, 6:25 PM CDT	Severe Thunderstorm Warning	LBF	Arthur, Grant, Hooker, McPherson	50 min

Nearby

Flash Flood Warnings in Nebraska, 2013 Every flash flood warning in 2013

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.