Alert archive / Nebraska / Flash Flood Warnings in 2012

Flash Flood Warning 4, NWS Hastings, NE

June 14, 20124 counties in Nebraska

NWS Hastings, NE issued this flash flood warning at Jun 14, 2012, 8:07 PM CDT for 4 counties in 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 14, 2012, 8:07 PM CDT (01:07 UTC)
Expired
Jun 15, 2012, 2:00 AM CDT
In force
6 hr
Issued by
NWS Hastings, NE
Area
Storm-based polygon
Flood severity
None

Counties Adams County, NE, Clay County, NE, Nuckolls County, NE, Webster County, NE

The radar

The Grand Island radar (KUEX), 26 km from the middle of the area, began a volume at 01:10 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, 1.1 hours before the alert went out and 226 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 2012-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 926 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 2012-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.1939Sfc1 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
926 J/kg
Mixed-layer CIN
-183 J/kg
Mixed-layer LCL
2017 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

157 
WGUS53 KGID 150107
FFWGID
NEC001-035-129-181-150700-
/O.NEW.KGID.FF.W.0004.120615T0107Z-120615T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
807 PM CDT THU JUN 14 2012

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CLAY COUNTY IN SOUTH CENTRAL NEBRASKA...
  EASTERN WEBSTER COUNTY IN SOUTH CENTRAL NEBRASKA...
  NUCKOLLS COUNTY IN SOUTH CENTRAL NEBRASKA...
  SOUTHEASTERN ADAMS COUNTY IN SOUTH CENTRAL NEBRASKA...

* UNTIL 200 AM CDT

* AT 801 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH   
FLOODING ACROSS THE WARNED AREA. CLAY COUNTY REPORTED THAT NUMEROUS 
COUNTY ROADS WERE UNDER WATER...ESPECIALLY SOUTH OF HIGHWAY 74. 
STORM SPOTTERS AND LAW ENFORCEMENT HAVE REPORTED HEAVY RAINFALL OF 2 
TO 4 INCHES ACROSS THE WARNED AREA.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...AYR...BLUE
  HILL...BOSTWICK...CLAY CENTER...COWLES...DEWEESE...EDGAR...
  FAIRFIELD...GLENVIL...GUIDE ROCK...HARVARD...LAWRENCE...NELSON...
  NORA...OAK...ONG...ROSEMONT...SARONVILLE AND SUTTON.

CREEKS AND STREAMS INCLUDED IN THIS FLASH FLOOD WARNING 
INCLUDE...SCHOOL CREEK...SANDY CREEK...BIG SANDY CREEK...BUFFALO 
CREEK...PAWNEE CREEK...DRY CREEK...LIBERTY CREEK...OAK CREEK...AND 
THE LITTLE BLUE RIVER.

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 4009 9805 4001 9817 4001 9830 4021 9850
      4054 9851 4054 9816 4062 9812 4069 9800
      4062 9782 4022 9783

$$

WESELY
1 follow-up statement
158 
WGUS73 KGID 150338
FFSGID

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
1038 PM CDT THU JUN 14 2012

NEC001-035-129-181-150700-
/O.CON.KGID.FF.W.0004.000000T0000Z-120615T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLAY NE-NUCKOLLS NE-WEBSTER NE-ADAMS NE-
1038 PM CDT THU JUN 14 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHEASTERN ADAMS...
EASTERN WEBSTER...NUCKOLLS AND CLAY COUNTIES UNTIL 200 AM CDT...

AT 1031 PM CDT...DOPPLER RADAR INDICATED THAT ONLY LIGHT TO MODERATE 
RAINFALL REMAINED ACROSS THE WARNED AREA...WITH ADDITIONAL RAINFALL 
TONIGHT UNLIKELY TO EXCEED ONE HALF INCH. HOWEVER...EARLIER THURSDAY 
EVENING...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH FLOODING 
ACROSS THE WARNED AREA. CLAY COUNTY REPORTED THAT NUMEROUS COUNTY 
ROADS WERE UNDER WATER...ESPECIALLY SOUTH OF HIGHWAY 74. STORM 
SPOTTERS AND LAW ENFORCEMENT REPORTED HEAVY RAINFALL OF 2 TO 4 
INCHES ACROSS THE WARNED AREA. 

RUNOFF FROM THIS EXCESSIVE RAINFALL COULD CAUSE FLASH FLOODING 
PERSIST INTO THE OVERNIGHT HOURS. SOME LOCATIONS THAT COULD 
EXPERIENCE FLASH FLOODING INCLUDE...AYR...BLUE 
HILL...BOSTWICK...CLAY 
CENTER...COWLES...DEWEESE...EDGAR...FAIRFIELD.. .GLENVIL...GUIDE 
ROCK...HARVARD...LAWRENCE...NELSON...NORA...OAK...ONG...
ROSEMONT...SARONVILLE AND SUTTON.

CREEKS AND STREAMS INCLUDED IN THIS FLASH FLOOD WARNING 
INCLUDE...SCHOOL CREEK...SANDY CREEK...BIG SANDY CREEK...BUFFALO 
CREEK...PAWNEE CREEK...DRY CREEK...LIBERTY CREEK...OAK CREEK...AND 
THE LITTLE BLUE RIVER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4009 9805 4001 9817 4001 9830 4021 9850
      4054 9851 4054 9816 4062 9812 4069 9800
      4062 9782 4022 9783

$$

PFANNKUCH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 7:06 PM CDTAreal Flood AdvisoryGIDFurnas12 hr
Jun 14, 7:10 PM CDTSevere Thunderstorm WarningGIDFillmore, Nuckolls, Thayer, Webster, York50 min
Jun 14, 7:16 PM CDTSpecial Weather StatementGIDMerrick44 min
Jun 14, 7:29 PM CDTSevere Thunderstorm WarningGIDAdams, Franklin, Kearney, Webster30 min
Jun 14, 7:54 PM CDTSevere Thunderstorm WarningGIDNuckolls, Thayer51 min
Jun 14, 8:13 PM CDTSevere Thunderstorm WarningGIDNuckolls, Webster15 min
Jun 15, 1:45 AM CDTAreal Flood WarningGIDAdams, Clay, Nuckolls, Webster12 hr
Jun 15, 1:46 AM CDTRiver Flood WarningGIDClay, Nuckolls14 hr
Jun 15, 1:36 PM CDTAreal Flood WarningGIDClay, Nuckolls7 hr

Nearby

Flash Flood Warnings in Nebraska, 2012Every flash flood warning in 2012

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.