Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 44, NWS Hastings, NE

May 8, 2021Nuckolls County, Thayer County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at May 8, 2021, 7:20 PM CDT for Nuckolls County, Thayer County, Nebraska. It was in force for 40 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 8, 2021, 7:20 PM CDT (00:20 UTC)
Expired: May 8, 2021, 8:00 PM CDT
In force: 40 min
Issued by: NWS Hastings, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Nuckolls County, NE, Thayer County, NE

The radar

The Grand Island radar (KUEX), 61 km from the middle of the area, began a volume at 00:24 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.

What was reported inside it

Time	Report	Where	Remark
May 8, 7:30 PM CDT	TSTM WND GST 60	4 Ne Ruskin, NE
May 8, 7:34 PM CDT	TSTM WND DMG	3 Wnw Byron, NE	SPOTTER NETWORK REPORTS OVERTURNED PIVOT ALONG NE HWY 8, 3 MILES WEST OF BYRON.
May 8, 7:46 PM CDT	TSTM WND DMG	Chester, NE	PRELIMINARY REPORT OF WIND DAMAGE IN CHESTER, NE. GAS STATION WINDOW BLOWN OUT, POWER OUTAGES AND POSSIBLE WIDESPREAD TREE DAMAGE. 10 TO 12 INCH DIAMETER BRANCHES DOWN. DIME TO NICKLE SIZED HAIL. BLOWING DUST ALONG GUST FRONT LOWERED VISIBILITY TO LESS THAN 1/
May 8, 7:49 PM CDT	HAIL 1.75	Chester, NE	THAYER COUNTY DEPUTY REPORTS GOLF BALL SIZE HAIL IN CHESTER, NE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 5 storm reports to this severe thunderstorm warning; the first came 8 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 8, 4:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 0.3 hours before the alert went out and 178 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1451 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 264 m²/s²
0-3 km storm-relative helicity: 535 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

As transmitted.

917 
WUUS53 KGID 090020
SVRGID
NEC129-169-090100-
/O.NEW.KGID.SV.W.0044.210509T0020Z-210509T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Hastings NE
720 PM CDT Sat May 8 2021

The National Weather Service in Hastings has issued a

* Severe Thunderstorm Warning for...
  Eastern Nuckolls County in south central Nebraska...
  Thayer County in south central Nebraska...

* Until 800 PM CDT.

* At 719 PM CDT, a severe thunderstorm was located over Nora, or 28
  miles northwest of Belleville, moving east at 35 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...
  Hebron, Deshler, Chester, Alexandria, Hardy, Ruskin, Carleton,
  Byron, Hubbell, Oak, Belvidere, Gilead and Nora.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4000 9803 4026 9804 4034 9737 4000 9737
TIME...MOT...LOC 0019Z 266DEG 31KT 4016 9793 

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

Rossi

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 May 8, 6:27 PM CDT, 53 minutes earlier.

Area forecast discussion, May 8, 6:27 PM CDT, 53 minutes before

AREA FORECAST DISCUSSION
National Weather Service Hastings NE
627 PM CDT Sat May 8 2021

.DISCUSSION...(This evening through Saturday)
Issued at 242 PM CDT Sat May 8 2021

A few light returns are evident on radar this afternoon along a
warm frontal boundary draped across the northwestern fringes of
the local area. The dryline is located across western
Kansas...and into southwestern Nebraska. So far...little if any
precipitation from the light returns is reaching the ground...but
continue to expect the radar to get more active over the next few
hours as the associated area of low pressure across southeastern
Colorado tracks east and a cold front crosses the local area late
this afternoon through evening. This front is expected to be the
focus of thunderstorm activity this evening as it rapidly tracks
southeast and largely through the local area by around midnight
tonight.

At 3 PM...SPC mesoanalysis indicates around 500 J/KG of CAPE
across south central Nebraska...increasing to near 2000 J/KG
across north central Kansas. With the best shear values across
north central Kansas and eastern fringes of the area...expect the
strongest storms to be located where these parameters
overlap...with all modes of severe weather possible...although
large hail and damaging wind gusts remain the most favored. Latest
NAM and CAMS are initiating convection a bit further
northwest than previous runs...which makes sense given the
current location of the front. As a result...expect convection to
fire up in the 5 to 7 PM time frame stretching from Dawson to
Valley county...rapidly intensifying and tracking east southeast
as it crosses the tri-cities during the early evening hours.
Again, while some hail and strong wind gusts cannot be ruled out
with this initial convection, the more widespread and better
changes for severe weather look to be just southeast of the tri-
cities and into north central Kansas this evening where the
combination of best shear and instability exist.

With the quick progression of this system...expect the chance for
thunderstorms to diminish rapidly behind the cold front...and for
any post frontal precipitation to be winding down by daybreak
Sunday. That said...Sunday still does not appear to be the nicest
day as clouds are expected to linger along with breezy north winds
and temperatures 15-25 degrees below recent days. In fact...Sunday
will mark the first day of a prolonged stretch of below normal
temperatures across the local area through at least mid week...as
a trough aloft continues across the plains with off and on again
small chances for light rain showers. Later in the week...expect
high pressure to begin to nudge across the area from the
west...with temperatures returning closer to normal and at least
the chance for a few afternoon and evening thunderstorms Thursday
through Saturday.

&&

.AVIATION...(For the 00Z KGRI/KEAR TAFS through 00Z Monday)
Issued at 622 PM CDT Sat May 8 2021

Thunderstorms have started to develop this evening. Most of the
storms are to the south or southeast of the terminals at this
time. Expect there to be more thunderstorms developing during the
evening, but they should be mainly moved out of the area around
midnight or a little after. Expect IFR ceilings through the night,
perhaps lifting a little during the morning.

&&

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

DISCUSSION...Rossi
AVIATION...JCB

Hazardous weather outlook, May 8, 2:40 PM CDT, 4 hours 40 minutes before

Hazardous Weather Outlook
National Weather Service Hastings NE
240 PM CDT Sat May 8 2021

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
091945-
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-
240 PM CDT Sat May 8 2021

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

.DAY ONE...This Afternoon and Tonight.

Thunderstorms are expected to develop across portions of the area
this afternoon and evening. Some of these storms could be severe,
mainly for areas along and south of a line extending from Alma,
to Hastings, to York, NE. The primary threats will be large hail
to around the size of golf balls and damaging winds to around 60
mph. An isolated tornado cannot be ruled out, especially across
north central Kansas.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of frost are possible Sunday night and Monday morning,
primarily for areas north of Interstate 80 and west of Highway
281.

Additional thunderstorm chances return to portions of the area
Thursday evening, and again Friday afternoon and evening.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and evening.
Reports of damaging wind gusts, hail of any size as well as
funnel clouds or tornadoes are always appreciated.

&&

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

Rossi

In the hours before

Local storm report, May 8, 6:46 PM CDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
646 PM CDT SAT MAY 8 2021

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

0637 PM     HAIL             6 NW NATOMA             39.25N 99.09W
05/08/2021  E1.00 INCH       ROOKS              KS   TRAINED SPOTTER

&&

REED

Local storm report, May 8, 6:47 PM CDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
647 PM CDT SAT MAY 8 2021

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

0641 PM     HAIL             LAWRENCE                40.29N 98.26W
05/08/2021  E1.00 INCH       NUCKOLLS           NE   PUBLIC

            REPORT FROM MPING: QUARTER (1.00 IN.).

&&

REED

Local storm report, May 8, 6:48 PM CDT, 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
648 PM CDT SAT MAY 8 2021

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

0615 PM     HAIL             COWLES                  40.18N 98.45W
05/08/2021  M1.00 INCH       WEBSTER            NE   PUBLIC

            NICKLE TO QUARTER FB REPORT.

&&

Local storm report, May 8, 7:02 PM CDT, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
702 PM CDT SAT MAY 8 2021

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

0654 PM     HAIL             6 NW NATOMA             39.25N 99.10W
05/08/2021  M1.50 INCH       ROOKS              KS   TRAINED SPOTTER

&&

REED

Local storm report, May 8, 7:11 PM CDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
711 PM CDT SAT MAY 8 2021

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

0703 PM     TSTM WND GST     2 N SUPERIOR            40.04N 98.06W
05/08/2021  M61 MPH          NUCKOLLS           NE   MESONET

&&

Local storm report, May 8, 7:14 PM CDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
714 PM CDT SAT MAY 8 2021

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

0630 PM     HAIL             4 WSW COWLES            40.15N 98.52W
05/08/2021  M1.25 INCH       WEBSTER            NE   PUBLIC

            FB REPORT OF QUARTER TO HALF DOLLAR HAIL.

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 7:14 PM CDT	Areal Flood Advisory	GID	Clay, Nuckolls, Webster	5 hr
May 8, 7:44 PM CDT	Severe Thunderstorm Warning	GID	Thayer	46 min
May 8, 7:56 PM CDT	Severe Thunderstorm Warning	GID	Thayer	34 min
May 8, 8:16 PM CDT	Special Weather Statement	GID	Thayer	29 min
May 8, 8:30 PM CDT	Special Weather Statement	GID	Webster	30 min
May 8, 8:39 PM CDT	Severe Thunderstorm Warning	GID	Franklin, Webster	51 min
May 8, 8:56 PM CDT	Special Weather Statement	GID	Nuckolls	49 min
May 8, 9:23 PM CDT	Special Weather Statement	GID	Webster	52 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2021 Every severe thunderstorm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.