Alert archive / Nebraska / Flash Flood Warnings in 2019

Flash Flood Warning 10, NWS Hastings, NE

March 14, 2019Nance County, Nebraska

NWS Hastings, NE issued this flash flood warning at Mar 14, 2019, 3:43 AM CDT for Nance 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 counties it named.

The facts

Issued
Mar 14, 2019, 3:43 AM CDT (08:43 UTC)
Expired
Mar 14, 2019, 9:30 AM CDT
In force
6 hr
Issued by
NWS Hastings, NE
Area
Storm-based polygon
Emergency
Flash flood emergency
Flood severity
None

County Nance County, NE

The radar

The Grand Island radar (KUEX), 126 km from the middle of the area, began a volume at 08:44 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

Omaha, NE (KOAX), launched 00:00Z, 8.7 hours before the alert went out and 136 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, Omaha, NE at 00:00Z on 2019-03-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 137 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 2019-03-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 272 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
137 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1073 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
272 m²/s²
0-3 km storm-relative helicity
324 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.2

Open this sounding in Storm Lab

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 Hastings, NE wrote its last area forecast discussion before this flash flood warning went out at Mar 14, 3:10 AM CDT, 33 minutes earlier.

Area forecast discussion, Mar 14, 3:10 AM CDT, 33 minutes before
Area Forecast Discussion
National Weather Service Hastings NE
310 AM CDT Thu Mar 14 2019

.SHORT TERM...(Today and tonight)
Issued at 305 AM CDT Thu Mar 14 2019

Not too difficult to pick out the feature of interest in the
satellite imagery early this morning. A tightly wound, stacked
upper level low pressure system continues to slide ENE across
the Central Plains...and is currently spinning over the far
eastern portions of our CWA...on its way into east-central NE by
around sunrise. Am impressed with how consistent the models were
over the past several days in the grand scheme of things with this
system, and did pretty well with the location of this smaller
band that is currently set up through central portions of NE. At
the sfc, the accompanying cold front has made the swing through
all but a very small corner of the SErn CWA. To this point, the
strongest winds have been just outside the western edge of the
CWA, but still have had a number of 55-60 MPH gusts (Ord has been
the highest so far, just gusted to 62 MPH at 243 AM). Looks like
the sfc low was around 977mb or so when it entered the SWrn corner
earlier this evening. Have had reports of reduced visibility and
hazardous travel conditions, and a handful of automated sites have
dropped down to 1/4-1/2 mi...feel headlines are in good shape as
is. Hydrology-wise, have many reports of flooded rivers,
water-covered roadways, etc...there were even a few water-rescues
in Buffalo County.

The forecast for today/tonight will continue to be dominated by
the gradually departing storm system. The worst conditions are
expected to continue through roughly the late morning hours, hi-
res models showing a marked downward trend in precip with time
from west to east. At this point, won't be making any changes to
current headlines...with the Blizzard Warning running through 18Z
and the Winter Weather Advisory for far eastern counties (that may
see at least light snow longer into the day) into this evening.
That Winter Weather Advisory may be running a bit long, but will
let day shift assess trends and adjust as necessary. No change in
the expectations for winds, those stronger gusts just off to the
west are expected to slide into our CWA. Through 18Z, the Blizzard
Warning covers the high wind, with a High Wind Warning in effect
for the remainder of the CWA. Once the Blizzard Warning expires,
the High Wind Warning will return for that area...running through
10 PM this evening.

Thinking is that precipitation will come to an end by this
evening, and kept the 00-12Z period tonight dry. Expecting to
see decreasing cloud cover with time through tonight, and though
winds won't be as strong as what is ongoing currently, they will
still be on the gusty side. Following highs today in the mid 30s-
near 40 (admittedly, confidence in that is on the low side),
overnight lows tonight drop into the lower-mid 20s.

.LONG TERM...(Friday through Wednesday)
Issued at 305 AM CDT Thu Mar 14 2019

With ongoing weather, did not spend a lot of time concentrating on
the long term period.

In the wake of this departing system, models are in good agreement
showing northwesterly flow setting up across the region as we get
into Friday and the upcoming weekend. The forecast for this period
is a dry one, and certainly looks to have more in the way in the
sunshine. NW winds may still be on the breezy side through the
morning hours on Friday, but the overall trend will continue
downward. Speeds closer to 10 MPH are expected for Sat/Sun. Also
have a warming trend in temps in the forecast, with highs in the
upper 30s/mid 40s Friday and up into the upper 40s to mid 50s by
Sunday.

Looking ahead to Monday through Wednesday, outside of a small
chance for precip thanks to a passing shortwave disturbance on
Tuesday, the forecast remains a dry one. 40s and 50s look to stick
around for highs.

&&

.AVIATION...(For the 06Z KGRI/KEAR TAFS through 06Z Friday)
Issued at 1221 AM CDT Thu Mar 14 2019

Powerful storm system will continue to drive the weather at both
terminal sites. Sub-1000ft ceilings and lower visibilities will
continue...with rain finally starting to give way to the snow.
Gusts upstream of the terminals have reached near 60MPH, expect
the same as that front pushes further east. It doesn't look to be
until later this afternoon when snow ends and winds show a
noticeable downward trend, though they will still be plenty
gusty.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...High Wind Warning from 1 PM this afternoon to 10 PM CDT this
     evening for NEZ039>041-046>048-060>063-072>076-082>085.

     Blizzard Warning until 1 PM CDT this afternoon for NEZ039>041-
     046>048-060>063-072>076-082>085.

     High Wind Warning until 10 PM CDT this evening for NEZ049-064-
     077-086-087.

     Winter Weather Advisory until 10 PM CDT this evening for NEZ049-
     064-077-086-087.

KS...High Wind Warning from 1 PM this afternoon to 10 PM CDT this
     evening for KSZ005-006.

     Blizzard Warning until 1 PM CDT this afternoon for KSZ005-006.

     High Wind Warning until 10 PM CDT this evening for KSZ007-
     017>019.

     Winter Weather Advisory until 10 PM CDT this evening for KSZ007.

&&

SHORT TERM...ADP
LONG TERM...ADP
AVIATION...ADP
Hazardous weather outlook, Mar 13, 10:25 PM CDT, 5 hours 18 minutes before
Hazardous Weather Outlook
National Weather Service Hastings NE
1025 PM CDT Wed Mar 13 2019

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
141200-
Phillips-Smith-Jewell-Rooks-Osborne-Mitchell-Valley-Greeley-Nance-
Sherman-Howard-Merrick-Polk-Dawson-Buffalo-Hall-Hamilton-York-
Gosper-Phelps-Kearney-Adams-Clay-Fillmore-Furnas-Harlan-Franklin-
Webster-Nuckolls-Thayer-
1025 PM CDT Wed Mar 13 2019

This Hazardous Weather Outlook is for south central Nebraska and
portions of north central Kansas.

.DAY ONE...Tonight.

A powerful storm system will continue to promote multiple weather
concerns.

South central Nebraska is in Flood warning or Flash Flood
Warnings. Please see the latest flood products for information.

Rain will continue to switch over to snow tonight. Combined with
northwest winds gusting to around 65 MPH, significant impacts are
expected.No matter how much snow falls, significant visibility
reductions are likely, as the entire outlook area will observe
intense northwest winds, gusting to around 65 MPH. As a result of
these snow and high wind concerns, the entire outlook area is
under a combination of Blizzard Warnings, Winter Weather
Advisories and High Wind Warnings. Please refer to these
statements for more information.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday into Thursday evening, the entire outlook area remains
under a combination of Blizzard Warnings, Winter Weather
Advisories and High Wind Warnings. Please refer to these
statements for more information.

Flooding of various rivers, streams and low-lying areas will
continue for the next few days, until water levels subside.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight, but any
reports of flooding or snow totals would be appreciated over the
next few days.

&&

More information may be obtained at the following web page:
   https://www.weather.gov/hastings

In the hours before

Local storm report, Mar 14, 12:53 AM CDT, 2 hours 50 minutes before
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Local storm report, Mar 14, 12:54 AM CDT, 2 hours 49 minutes before
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Local storm report, Mar 14, 2:11 AM CDT, 1 hour 32 minutes before
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Local storm report, Mar 14, 2:40 AM CDT, 1 hour 3 minutes before
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Local storm report, Mar 14, 3:22 AM CDT, 21 minutes before
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Local storm report, Mar 14, 3:23 AM CDT, 20 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Mar 13, 7:07 PM CDTFlash Flood WarningGIDBuffalo, Hall, Sherman5 hr
Mar 13, 8:56 PM CDTFlash Flood WarningGIDHamilton, Merrick3 hr
Mar 13, 9:54 PM CDTBlizzard WarningGIDAdams, Buffalo, Clay, Dawson, Fillmore, Franklin and 18 more14 hr
Mar 13, 11:48 PM CDTFlash Flood WarningGIDBuffalo, Greeley, Hall, Hamilton, Howard, Merrick and 3 more8 hr
Mar 14, 4:22 AM CDTRiver Flood WarningGIDHarlan36 hr
Mar 14, 6:05 AM CDTHigh Wind WarningGIDFillmore, Nuckolls, Polk, Thayer, York16 hr
Mar 14, 4:59 PM CDTRiver Flood WarningGIDNuckolls, Webster25 hr
Mar 14, 6:20 PM CDTFlash Flood WarningGIDGreeley16 hr
Mar 13, 8:44 PM CDTRiver Flood WarningGIDOsborne23 hr
Mar 13, 8:57 PM CDTRiver Flood WarningGIDOsborne, Rooks64 hr
Mar 14, 9:23 AM CDTRiver Flood WarningGIDOsborne, Smith30 hr

Nearby

Flash Flood Warnings in Nebraska, 2019Every flash flood warning in 2019

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.