Alert archive / Nebraska / Flash Flood Warnings in 2012

Flash Flood Warning 1, NWS Hastings, NE

March 28, 2012Furnas County, Gosper County, Nebraska

NWS Hastings, NE issued this flash flood warning at Mar 28, 2012, 4:25 PM CDT for Furnas County, Gosper 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
Mar 28, 2012, 4:25 PM CDT (21:25 UTC)
Expired
Mar 28, 2012, 10:30 PM CDT
In force
6 hr
Issued by
NWS Hastings, NE
Area
Storm-based polygon
Flood severity
None

Counties Furnas County, NE, Gosper County, NE

The radar

The Grand Island radar (KUEX), 129 km from the middle of the area, began a volume at 21:25 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, 9.4 hours before the alert went out and 102 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 2012-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2012-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2656 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
27 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.

240 
WGUS53 KGID 282125
FFWGID
NEC065-073-290330-
/O.NEW.KGID.FF.W.0001.120328T2125Z-120329T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
425 PM CDT WED MAR 28 2012

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTH CENTRAL FURNAS COUNTY IN SOUTH CENTRAL NEBRASKA...
  SOUTHWESTERN GOSPER COUNTY IN SOUTH CENTRAL NEBRASKA...

* UNTIL 1030 PM CDT

* AT 421 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA.  DOPPLER RADAR ESTIMATED THAT 3 TO 4 INCHES OF RAIN   
  HAD FALLEN ACROSS THE WARNED AREA. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO   
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING                
  INCLUDE...RURAL AREAS NORTH OF ARAPAHOE AND HOLBROOK.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...ELK 
CREEK...MUDDY CREEK...EAST BRANCH MUDDY 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 4042 10004 4047 9984 4026 9984 4025 9996
      4026 10005

$$
1 follow-up statement
014 
WGUS73 KGID 282347
FFSGID

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
647 PM CDT WED MAR 28 2012

NEC065-073-290330-
/O.CON.KGID.FF.W.0001.000000T0000Z-120329T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FURNAS NE-GOSPER NE-
647 PM CDT WED MAR 28 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHWESTERN GOSPER AND
NORTH CENTRAL FURNAS COUNTIES UNTIL 1030 PM CDT...

AT 640 PM CDT...RAINFALL HAD ENDED ACROSS THE WARNING AREA. AT THIS 
POINT...IT APPEARS ADDITIONAL RAINFALL TONIGHT WILL BE MINIMAL. 
HOWEVER...RADAR RAINFALL ESTIMATES OF 3 TO 4 INCHES OF RAIN FELL 
IN AN AREA CENTERED ABOUT 5 TO 8 MILES NORTH NORTHWEST OF ARAPAHOE 
ALONG AND JUST NORTH OF THE GOSPER COUNTY LINE. 

THE RUNOFF FROM THIS RAIN WILL IMPACT THE MUDDY CREEK AND ELK CREEK 
ESPECIALLY. A RIVER GAUGE ON THE MUDDY CREEK NEAR THE COUNTY LINE 
NORTHWEST OF ARAPAHOE HAS SHOWN A RISE TO 8 FEET THE PAST 2 HOURS. 
THE CREEK LEVEL IS STILL WELL BELOW FLOOD STAGE...BUT THIS STILL 
GIVES AN IDEA OF THE AMOUNT OF WATER EXPECTED TO FLOW THROUGH THESE 
TWO STREAMS AND HOW QUICKLY THE RISE CAN OCCUR. COUNTY ROADS WILL BE 
MOST SUSCEPTIBLE TO FLOODING PROBLEMS. 

SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING 
INCLUDE...ARAPAHOE... HOLBROOK AND RURAL AREAS OF NORTH CENTRAL 
FURNAS AND FAR SOUTHWEST  GOSPER COUNTIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES... AS WELL AS
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

&&

LAT...LON 4042 10004 4047 9984 4026 9984 4025 9996
      4026 10005

$$

MORITZ

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 1:34 PM CDTSpecial Weather StatementGIDFurnas41 min
Mar 28, 1:50 PM CDTSevere Thunderstorm WarningGIDFurnas, Gosper, Harlan, Phelps25 min
Mar 28, 2:15 PM CDTSevere Thunderstorm WarningGIDFurnas, Gosper, Harlan, Phelps30 min
Mar 28, 2:44 PM CDTSevere Thunderstorm WarningGIDFurnas, Gosper31 min
Mar 28, 2:46 PM CDTSpecial Weather StatementGIDPhelps29 min
Mar 28, 3:14 PM CDTSevere Thunderstorm WarningGIDFurnas, Gosper31 min
Mar 28, 3:29 PM CDTSevere Thunderstorm WarningGIDGosper31 min
Mar 28, 3:41 PM CDTSevere Thunderstorm WarningGIDFurnas, Gosper34 min
Mar 28, 3:46 PM CDTAreal Flood AdvisoryGIDFurnas, Gosper63 min
Mar 28, 4:00 PM CDTSevere Thunderstorm WarningGIDGosper45 min
Mar 28, 4:16 PM CDTSpecial Weather StatementGIDGosper29 min
Mar 28, 4:45 PM CDTSevere Thunderstorm WarningGIDGosper30 min

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.