Alert archive / Nebraska / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 6, NWS Hastings, NE

March 23, 20174 counties in Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Mar 23, 2017, 9:51 PM CDT for 4 counties in Nebraska. It was in force for 39 min. 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 23, 2017, 9:51 PM CDT (02:51 UTC)
Expired: Mar 23, 2017, 10:30 PM CDT
In force: 39 min
Issued by: NWS Hastings, NE
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Buffalo County, NE, Dawson County, NE, Furnas County, NE, Gosper County, NE

The radar

The Grand Island radar (KUEX), 133 km from the middle of the area, began a volume at 02:52 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

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 11 minutes after it went out.

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 00:00Z, 2.9 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: 1331 J/kg
Mixed-layer CIN: -132 J/kg
Mixed-layer LCL: 1799 m above ground
0-6 km bulk shear: 78 kt
0-1 km storm-relative helicity: 230 m²/s²
0-3 km storm-relative helicity: 260 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.2

Open this sounding in Storm Lab

The text

As transmitted.

612 
WUUS53 KGID 240251
SVRGID
NEC019-047-065-073-240330-
/O.NEW.KGID.SV.W.0006.170324T0251Z-170324T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Hastings NE
951 PM CDT THU MAR 23 2017

The National Weather Service in Hastings has issued a

* Severe Thunderstorm Warning for...
  Western Gosper County in south central Nebraska...
  Northwestern Buffalo County in south central Nebraska...
  Dawson County in south central Nebraska...
  Western Furnas County in south central Nebraska...

* Until 1030 PM CDT

* At 951 PM CDT, severe thunderstorms were located along a line
  extending from near Holbrook to near Miller, moving north at 50
  mph.

  HAZARD...70 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings. 

* Locations impacted include...
  Lexington, Cozad, Gothenburg, Cambridge, Sumner, Holbrook, Miller,
  Eddyville, Wilsonville, Willow Island, Johnson Lake and Farnam.

This includes Interstate 80 between mile markers 209 and 239.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Wind damage with these storms will occur before any rain or
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&

LAT...LON 4104 10022 4105 9921 4099 9921 4059 9996
      4000 10001 4000 10019 4035 10020 4035 10010
      4044 10009 4044 9998 4070 9998 4070 10022
TIME...MOT...LOC 0251Z 178DEG 45KT 4027 10003 4097 9933 

HAIL...<.75IN
WIND...70MPH
 
$$

JCB

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Mar 23, 6:11 PM CDT, 3 hours 40 minutes earlier.

Area forecast discussion, Mar 23, 6:11 PM CDT, 3 hours 40 minutes before

Area Forecast Discussion
National Weather Service Hastings NE
611 PM CDT Thu Mar 23 2017

.SHORT TERM...(This evening through Friday)
Issued at 359 PM CDT Thu Mar 23 2017

Another difficult forecast today through Friday. Challenges
included temperatures through the period, precipitation chances
and timing of the various precipitation waves.

The upper low is approaching from the southwest and the surface
low is expected to develop over eastern Colorado and western
Kansas this evening. Currently, skies are clearing from west to
east and temperatures are warming quickly helping to destabilize
the atmosphere. There is and will be a fairly sharp temperature
gradient when it's all said and done with for today. Tonight,
temperatures will remain fairly mild with breezy south winds and
warm moist advection. Tomorrow, there again could be a sharp
temperature gradient as the cold front impinges on the forecast
area with cooler air in the northwest and temperatures up to the
70s possible in the southeast.

On to precipitation chances and timing.

Tonight: The high resolution guidance continues to indicate the
development of thunderstorms this evening near 00z/7pm across
portions of south central Nebraska and north central Kansas. The
best chances will be west of a Grand Island, NE to Smith Center,
KS line. With plentiful shear and instability, supercells maybe
possible with large hail and damaging winds. Think this primary
threat will subside in the late evening/early overnight hours as
it transitions to more of a stratiform rain chance along the
front. Precipitation is possible across the forecast area
overnight, but again the best chances are off to the west.

Friday: As the upper low moves out over the Central Plains, the
frontogenesis along the cold front will keep precipitation chances
across north central to southwest Nebraska...this will clip
portions of central and south central Nebraska. Guidance today
continues to indicate that the dryslot will cover a good chunk of
the area tomorrow...currently looking like it will stay dry
southeast of a York, NE to Smith Center, KS line for much of the
day. Precipitation chances southeast of this line will be quite a
bit less, but cannot rule it out.

Other things: Did increase southerly winds tonight through
tomorrow across the area as well as those behind the front
tomorrow from the north.

.LONG TERM...(Friday night through Thursday)
Issued at 359 PM CDT Thu Mar 23 2017

Precipitation should end during the evening and early overnight
hours Friday night with Saturday being dry. Highs on Saturday are
expected to be near normal for late March in the 50s to low 60s.

The next chance for precipitation will follow quickly for Sunday
as the next disturbance moves over the Central Plains. There are
still discrepancies in exactly where the disturbance will track,
thus have precipitation chances in for much of the area for
Sunday afternoon and overnight. As we move through the work week,
there will be another chance for precipitation for mid-week.
Currently the upper flow looks to split with the the main
disturbance being cut off and tracking along the southern CONUS.
There are enough discrepancies that confidence is low on how this
system will evolve. Temperatures through the week look to be
seasonal in the 50s and low 60s.

&&

.AVIATION...(For the 00Z KGRI/KEAR TAFS through 00Z Friday evening)
Issued at 607 PM CDT Thu Mar 23 2017

Thunderstorms are possible or a few hours this evening. There is a
cold front that will move through the area late tonight and winds
will turn to the northeast. There will be a chance for showers on
and off through the remainder of the period.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...None.
KS...None.
&&

SHORT TERM...Billings Wright
LONG TERM...Billings Wright
AVIATION...JCB

Hazardous weather outlook, Mar 23, 4:04 PM CDT, 5 hours 47 minutes before

Hazardous Weather Outlook
National Weather Service Hastings NE
404 PM CDT Thu Mar 23 2017

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
242115-
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-
404 PM CDT Thu Mar 23 2017

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

.DAY ONE...This Afternoon and Tonight.

Thunderstorms are possible across the entire outlook area this
evening and overnight, Storms are expected mainly after 5 PM.
There will be the potential for some thunderstorms to be strong to
severe through the evening hours, mainly west of an Osceola,
Nebraska to Osborne, Kansas line. The primary hazards with any
severe thunderstorms would be hail to the size of quarter to
golfballs and wind gusts near 60 MPH.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Isolated thunderstorms are possible through the day on Friday
into Friday evening.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed mainly after 5 PM today.

&&

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

Billings Wright

In the hours before

Local storm report, Mar 23, 7:01 PM CDT, 2 hours 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
701 PM CDT THU MAR 23 2017

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

0650 PM     HAIL             1 WNW COZAD             40.87N 100.0W
03/23/2017  E0.88 INCH       DAWSON             NE   TRAINED SPOTTER

            .

&&

PETR

Special weather statement, Mar 23, 7:49 PM CDT, 2 hours 2 minutes before

Special Weather Statement
National Weather Service Hastings NE
749 PM CDT THU MAR 23 2017

NEZ039-040-046-240130-
Valley NE-Greeley NE-Sherman NE-
749 PM CDT THU MAR 23 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN GREELEY...VALLEY AND
NORTHWESTERN SHERMAN COUNTIES UNTIL 830 PM CDT...

At 749 PM CDT, Doppler radar was tracking a strong thunderstorm near
Ansley, or 15 miles east of Broken Bow, moving northeast at 50 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Ord, Arcadia, Elyria and Fort Hartsuff State Park.

LAT...LON 4174 9869 4169 9862 4130 9920 4174 9921
TIME...MOT...LOC 0049Z 224DEG 43KT 4134 9934

Heinlein

Local storm report, Mar 23, 8:33 PM CDT, 1 hour 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
833 PM CDT THU MAR 23 2017

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

0805 PM     HAIL             4 W ARCADIA             41.42N 99.21W
03/23/2017  E1.00 INCH       VALLEY             NE   PUBLIC

            .

&&

JCB

Special weather statement, Mar 23, 8:41 PM CDT, 1 hour 10 minutes before

Special Weather Statement
National Weather Service Hastings NE
841 PM CDT THU MAR 23 2017

KSZ005-NEZ083-240230-
Phillips KS-Harlan NE-
841 PM CDT THU MAR 23 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN PHILLIPS AND
SOUTHWESTERN HARLAN COUNTIES UNTIL 930 PM CDT...

At 841 PM CDT, Doppler radar was tracking a strong thunderstorm near
Almena, or 12 miles east of Norton, moving northeast at 30 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Alma, Orleans, Prairie View, Long Island and Woodruff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

&&

LAT...LON 4005 9963 4021 9944 3994 9912 3976 9963
TIME...MOT...LOC 0141Z 234DEG 27KT 3987 9966

JCB

Local storm report, Mar 23, 9:07 PM CDT, 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
907 PM CDT THU MAR 23 2017

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

0852 PM     TSTM WND GST     4 SE OXFORD             40.22N 99.57W
03/23/2017  M63 MPH          HARLAN             NE   MESONET

            .

&&

PETR

Local storm report, Mar 23, 9:39 PM CDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
939 PM CDT THU MAR 23 2017

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

0915 PM     TSTM WND GST     HOLDREGE                40.44N 99.37W
03/23/2017  M62 MPH          PHELPS             NE   AWOS

            .

&&

PETR

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 23, 7:49 PM CDT	Special Weather Statement	GID	Valley	41 min
Mar 23, 8:01 PM CDT	Severe Thunderstorm Warning	GID	Valley	44 min
Mar 23, 8:41 PM CDT	Special Weather Statement	GID	Harlan	49 min
Mar 23, 8:48 PM CDT	Severe Thunderstorm Warning	GID	Franklin, Furnas, Harlan	42 min
Mar 23, 8:54 PM CDT	Severe Thunderstorm Warning	GID	Valley	51 min
Mar 23, 9:25 PM CDT	Severe Thunderstorm Warning	GID	Adams, Buffalo, Clay, Dawson, Franklin, Furnas and 7 more	50 min
Mar 23, 10:17 PM CDT	Severe Thunderstorm Warning	GID	Adams, Buffalo, Clay, Dawson, Hall, Hamilton and 6 more	43 min
Mar 23, 10:43 PM CDT	Severe Thunderstorm Warning	GID	Greeley, Hamilton, Howard, Merrick, Nance, Sherman and 1 more	47 min
Mar 23, 10:51 PM CDT	Severe Thunderstorm Warning	GID	Hamilton, Merrick, Polk, York	39 min
Mar 23, 11:13 PM CDT	Severe Thunderstorm Warning	GID	Adams, Franklin, Furnas, Gosper, Harlan, Kearney and 2 more	47 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2017 Every severe thunderstorm warning in 2017

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.