Severe Thunderstorm Warning 26, NWS Hastings, NE

706 
WWUS53 KGID 030123
SVSGID

Severe Weather Statement
National Weather Service Hastings NE
823 PM CDT Sun May 2 2021

NEC143-185-030145-
/O.CON.KGID.SV.W.0026.000000T0000Z-210503T0145Z/
York NE-Polk NE-
823 PM CDT Sun May 2 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR NORTHERN YORK AND SOUTHEASTERN POLK COUNTIES...

At 822 PM CDT, severe thunderstorms were located along a line
extending from near Shelby to near Benedict, and are nearly
stationary.
 
HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Stromsburg, Shelby, Benedict, Gresham and Thayer. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Intense thunderstorm along a boundary can produce brief tornadoes. 
Although a tornado is not immediately likely, it is best to move to 
an interior room on the lowest floor of a building. These storms may 
cause serious injury and significant property damage.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4089 9756 4099 9776 4128 9738 4127 9737
      4102 9737
TIME...MOT...LOC 0122Z 322DEG 1KT 4116 9738 4096 9766 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

ADP

069 
WWUS53 KGID 030135
SVSGID

Severe Weather Statement
National Weather Service Hastings NE
835 PM CDT Sun May 2 2021

NEC143-185-030145-
/O.CON.KGID.SV.W.0026.000000T0000Z-210503T0145Z/
York NE-Polk NE-
835 PM CDT Sun May 2 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR NORTHERN YORK AND SOUTHEASTERN POLK COUNTIES...

At 835 PM CDT, severe thunderstorms were located along a line
extending from near Gresham to near York, moving southeast at 5 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Stromsburg, Shelby, Benedict, Gresham and Thayer. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Intense thunderstorms along boundaries can produce brief tornadoes. 
Although a tornado is not immediately likely, it is best to move to 
an interior room on the lowest floor of a building. These storms may 
cause serious injury and significant property damage.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4089 9756 4099 9776 4128 9738 4127 9737
      4102 9737
TIME...MOT...LOC 0135Z 326DEG 6KT 4110 9737 4093 9763 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

ADP

AREA FORECAST DISCUSSION
National Weather Service Hastings NE
641 PM CDT Sun May 2 2021

...AVIATION UPDATE...

.DISCUSSION...(This evening through Sunday)
Issued at 325 PM CDT Sun May 2 2021

Focus is on thunderstorms/severe weather late this evening/tonight...

The pattern aloft featured west/southwest flow ahead of a couple
shortwave troughs translating through the northern/central Rockies
towards the plains. At the surface, low pressure was centered in
southeast CO with a dry line extending to the south, and a cold
front was oriented to the north into far southwest Neb on into
central South Dakota. Moisture advected north into our region in
southerly flow ahead of the front and dps have risen into the upper
50s/around 60F across much of our cwa. The morning low cloud cover
has become more scattered this aftn, allowing for increasing
insolation and destabilization. The latest SPC meso page shows
instability around 1500 j/kg already and models prog instability
around 2000 j/kg by evening before the cold front arrives.

The progressing cold frontal boundary will provide the focus/lift
for showers/thunderstorms as we head through the evening/overnight
hours with latest CAMs showing initial storm development as early as
5 PM but more so 7-8 PM or after. Storms are expected to align
along the boundary while western convection along the front
range/high plains rolls eastward...with a complex of storms
impacting our region into tonight. Conditions will be favorable
for strong to severe storms...bringing a primary damaging wind
threat with 70 mph winds possible along a line of storms...and
storms will also be capable of producing large hail around the
size of ping pong balls. The latest SPC Day 1 outlook has upgraded
portions of north central KS to an enhanced severe weather risk
and the slight risk extends into southwest Neb.

Heavy rainfall is also a concern from the storms given the moisture
availability with dps around 60F and precipitable water values
ranging from 0.75" to 1.25" (which average 1-2 standard deviations
above normal for this time of year). Our current QPF ranges from
roughly a third of an inch on the low end to around 2" on the high
end and as is the nature of convection...there will be winners and
losers on rainfall with some locations seeing little rain and other
areas could exceed the 2" amount. There is still some uncertainty on
where the axis of heavy rain will align and overall trends have
shifted a little farther to the south/southwest.

Also tonight, the cold frontal passage will be a noticeable one.
Aside from the storms, the front will bring an abrupt wind shift to
the north and wind speeds will ramp up behind the boundary. Wind
gusts of 35-40 mph are expected to be common and would not be
surprised if a few locations see gusts near 50 mph.

For the most part, the convection is expected to depart by daybreak
Monday with perhaps some lingering showers/storms in our eastern or
far southern zones. Monday's weather is not looking overly nice with
noticeably cooler temps, strong/gusty north winds and clouds around.

Towards Monday night, an upper trough moving out of the Central
Rockies is expected to bring another round of precip to portions of
the Southern and Central Plains region, mainly to our south across
KS and have carried buffer pops. Temperaturewise, our northwest
zones are forecast to see some chilly overnight low temps Monday
night/Tuesday morning with readings in the low/mid 30s and some
frost development is possible.

Our region generally stays in a cooler pattern under the influence
of an upper trough for much of the upcoming week, with several days
of highs in the 60s and lows in the 30s/40s. Small chances for
precip return around the middle of the workweek and and return again
intermittently for next weekend. Temps looks to moderate to some
degree late in the week/next weekend with high temps closer to the
70 degree mark.

&&

.AVIATION...(For the 00Z KGRI/KEAR TAFS through 00Z Tuesday)
Issued at 634 PM CDT Sun May 2 2021

Strong to severe thunderstorms are expected throughout this
evening and into the overnight hours with the passage of a cold
front. The main concerns are strong winds, heavy rain, and
frequent lightning. There is also the possibility for some small
hail, though the environment doesn't look to be as supportive of a
hail threat. Winds are expected to increase over the next few
hours and continue to be breezy throughout tomorrow. Winds could
get up to around 20-25kt sustained with gusts up to around
30-35kts at times.

&&

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

DISCUSSION...Fay
AVIATION...Shawkey

Hazardous Weather Outlook
National Weather Service Hastings NE
558 PM CDT Sun May 2 2021

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
031200-
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-
558 PM CDT Sun May 2 2021

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

.DAY ONE...Tonight.

Strong to severe thunderstorms are possible this evening and
tonight as a cold frontal boundary crosses the outlook area.
Storms are expected to develop between 6 and 8 pm and continue
into the overnight hours. The storms will be capable of producing
damaging winds of 70 mph and large hail the size of golf balls.
The greater threat for severe storms is focused across north
central Kansas into far southern Nebraska. In addition, heavy
rainfall in excess of one and two inches could cause localized
flooding.

Also tonight, strong north winds may gust near 50 mph behind a
cold front.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

More chances for thunderstorms exist for portions of the outlook
area Wednesday afternoon and evening, and then Friday night into
Saturday night. At this time, the threat for severe storms
appears low for Wednesday, but it is too early to confidently
assess the severe storm potential Friday night into Saturday.

Early Tuesday morning, it could get just cold enough to allow
some frost to develop, mainly for locations west of a line from
Cambridge to Loup City to Greeley. However, sub-freezing
temperatures are not anticipated.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report hail, severe winds or instances
of flooding this evening and tonight.

&&

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

Special Weather Statement
National Weather Service Hastings NE
735 PM CDT Sun May 2 2021

NEZ049-030100-
Polk NE-
735 PM CDT Sun May 2 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN POLK COUNTY UNTIL
800 PM CDT...

At 735 PM CDT, Doppler radar was tracking a strong thunderstorm near
Shelby, or 18 miles south of Columbus, moving northeast at 15 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Shelby.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Hastings.

&&

A Severe Thunderstorm Watch remains in effect until midnight CDT for
east central Nebraska.

LAT...LON 4106 9748 4117 9752 4124 9737 4108 9737
TIME...MOT...LOC 0035Z 240DEG 13KT 4116 9738

ADP

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
736 PM CDT SUN MAY 2 2021

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

0732 PM     TSTM WND GST     1 WSW CAMBRIDGE         40.28N 100.19W
05/02/2021  M64 MPH          FURNAS             NE   STORM CHASER

            MEASURED WITH A HAND HELD ANEMOMETER.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
747 PM CDT SUN MAY 2 2021

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

0745 PM     HAIL             MINDEN                  40.50N 98.95W
05/02/2021  E1.25 INCH       KEARNEY            NE   AMATEUR RADIO

&&

Special Weather Statement
National Weather Service Hastings NE
750 PM CDT Sun May 2 2021

NEZ049-063-064-076-030115-
Hamilton NE-Clay NE-York NE-Polk NE-
750 PM CDT Sun May 2 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN YORK...SOUTHERN
HAMILTON AND SOUTH CENTRAL POLK COUNTIES UNTIL 815 PM CDT...

At 750 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Stromsburg to near Aurora. Movement was
southeast at 5 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
these storms.

Locations impacted include...
Aurora, Stromsburg, Hampton, Giltner, Bradshaw and Benedict.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

A Severe Thunderstorm Watch remains in effect until midnight CDT for
south central and east central Nebraska.

LAT...LON 4079 9782 4066 9823 4074 9828 4117 9754
      4106 9749 4104 9746
TIME...MOT...LOC 0050Z 299DEG 6KT 4110 9751 4082 9796

ADP

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
753 PM CDT SUN MAY 2 2021

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

0748 PM     HAIL             MINDEN                  40.50N 98.95W
05/02/2021  E1.75 INCH       KEARNEY            NE   AMATEUR RADIO

&&

Special Weather Statement
National Weather Service Hastings NE
807 PM CDT Sun May 2 2021

The National Weather Service in Hastings has issued a

* Special Weather Statement for...
  Central Merrick County in central Nebraska...
  Southeastern Buffalo County in south central Nebraska...
  Northern Adams County in south central Nebraska...
  Hamilton County in south central Nebraska...
  Southern Hall County in south central Nebraska...
  Northwestern Clay County in south central Nebraska...
  Phelps County in south central Nebraska...
  Northern York County in east central Nebraska...
  Kearney County in south central Nebraska...
  Polk County in east central Nebraska...

* Until 845 PM CDT.

* At 805 PM CDT, conditions are favorable for the development of
  landspouts in and close to the highlighted area.

  HAZARD...Landspouts are possible with the storms; however...at
           this time it is unknown which if any storm would produce
           a landspout.

  IMPACT...Any landspouts which develop are expected to pose a
           limited threat.

* Locations impacted include...
  Grand Island, Kearney, Hastings, York, Holdrege, Aurora, Minden,
  Gibbon, Wood River, Stromsburg, Shelton, Henderson, Kenesaw,
  Osceola, Doniphan, Juniata, Axtell, Shelby, Alda and Hampton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Landspout tornadoes can form with a developing thunderstorm before
rain, hail, and even thunder is observed. Landspout tornadoes are not
usually associated with a wall cloud and are often difficult to
detect with weather radar.

&&

LAT...LON 4066 9809 4039 9898 4035 9961 4059 9962
      4083 9858 4102 9796 4134 9760 4139 9737
      4095 9737

Fay