Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS Hastings, NE

August 9, 2021Dawson County, Nebraska

NWS Hastings, NE issued this special weather statement at Aug 9, 2021, 8:45 PM CDT for Dawson County, Nebraska. It was in force for 30 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: Aug 9, 2021, 8:45 PM CDT (01:45 UTC)
Expired: Aug 9, 2021, 9:15 PM CDT
In force: 30 min
Issued by: NWS Hastings, NE
Hail: 0.00 in
Wind: 50

County Dawson County, NE

The radar

The Grand Island radar (KUEX), 122 km from the middle of the area, began a volume at 01:48 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 00:00Z, 1.8 hours before the alert went out and 81 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: 529 J/kg
Mixed-layer CIN: -167 J/kg
Mixed-layer LCL: 3343 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 68 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 9, 6:44 PM CDT, 2 hours 1 minute earlier.

Area forecast discussion, Aug 9, 6:44 PM CDT, 2 hours 1 minute before

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Hazardous weather outlook, Aug 9, 3:26 PM CDT, 5 hours 19 minutes before

Hazardous Weather Outlook
National Weather Service Hastings NE
326 PM CDT Mon Aug 9 2021

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
102030-
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-
326 PM CDT Mon Aug 9 2021

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

.DAY ONE...This Afternoon and Tonight.

A Heat Advisory is in effect for areas along and east of a line
from Kearney Nebraska to Osborne Kansas this afternoon and
evening as heat index values are expected to peak in the 102 to
107 degree range. The Heat Advisory remains in effect through
Tuesday evening for areas along and southeast of a line from
Smith Center, KS to Hebron, NE. Heat index values of up to 107 are
possible. Heat index values may top out near 100 degrees in north
central Kansas and along the Highway 81 corridor in Nebraska again
Wednesday.

A weak cold front will bring the chance for thunderstorms to the
area late this afternoon and into the overnight. The best chances
currently look to be west and south of the Tri Cities, mainly in
the 5PM to midnight time frame. Quarter size hail and wind gusts
up to 60 MPH are the main threats.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The Heat Advisory remains in effect through Tuesday evening for
areas along and southeast of a line from Smith Center, KS to
Hebron, NE. Heat index values of up to 107 are possible. Heat
index values may top out near 100 degrees in north central Kansas
and along the Highway 81 corridor in Nebraska again Wednesday.

Chances for thunderstorms return Tuesday afternoon and evening,
primarily to areas east and southeast of the Tri Cities. Again,
some of these storms may be strong to marginally severe.

Occasional low-end chances for thunderstorms are in the forecast
Thursday night through the weekend.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

&&

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

Billings Wright

In the hours before

Special weather statement, Aug 9, 5:34 PM CDT, 3 hours 11 minutes before

Special Weather Statement
National Weather Service Hastings NE
534 PM CDT Mon Aug 9 2021

NEZ060-092315-
Dawson NE-
534 PM CDT Mon Aug 9 2021

...Strong thunderstorms will impact portions of western Dawson County
through 615 PM CDT...

At 533 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Gothenburg to 9 miles north of Moorefield.
Movement was east at 15 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Strong thunderstorms will be near...
  Gothenburg around 540 PM CDT.

Other locations in the path of these storms include Willow Island and
Cozad.

This includes Interstate 80 between mile markers 209 and 223.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4105 10022 4105 9973 4070 10013 4070 10022
TIME...MOT...LOC 2233Z 282DEG 12KT 4099 10015 4083 10038

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

Mangels

Local storm report, Aug 9, 5:54 PM CDT, 2 hours 51 minutes before

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Special weather statement, Aug 9, 8:45 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Hastings NE
845 PM CDT Mon Aug 9 2021

NEZ060-072-100215-
Dawson NE-Gosper NE-
845 PM CDT Mon Aug 9 2021

...A strong thunderstorm will impact portions of northeastern Gosper
and Dawson Counties through 915 PM CDT...

At 844 PM CDT, Doppler radar was tracking a showers and
thunderstorms across Dawson county producing strong downdraft winds.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

This storm will remain over mainly rural areas of Dawson and
northeastern Gosper Counties, including the following locations...
Farnam.

This includes Interstate 80 between mile markers 209 and 254.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4104 10022 4105 9943 4070 9943 4070 9942
      4067 9942 4069 9963 4068 9964 4057 9965
      4057 9998 4070 9998 4070 10022
TIME...MOT...LOC 0144Z 213DEG 14KT 4088 10000

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Mangels

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 11:06 PM CDT	Special Weather Statement	GID	Buffalo	39 min
Aug 10, 2:59 AM CDT	Special Weather Statement	GID	Webster	31 min
Aug 10, 3:39 AM CDT	Special Weather Statement	GID	Clay	36 min
Aug 10, 4:24 AM CDT	Special Weather Statement	GID	Clay, Fillmore	36 min
Aug 10, 12:20 AM CDT	Special Weather Statement	GID	Phillips	25 min
Aug 10, 12:39 AM CDT	Severe Thunderstorm Warning	GID	Phillips, Rooks	51 min
Aug 10, 1:06 AM CDT	Severe Thunderstorm Warning Considerable damage threat	GID	Osborne, Phillips, Rooks, Smith	39 min
Aug 10, 1:43 AM CDT	Severe Thunderstorm Warning	GID	Osborne, Phillips, Rooks, Smith	47 min
Aug 10, 2:16 AM CDT	Severe Thunderstorm Warning	GID	Jewell, Mitchell, Osborne, Smith	29 min
Aug 10, 2:44 AM CDT	Special Weather Statement	GID	Mitchell	46 min
Aug 10, 3:03 AM CDT	Severe Thunderstorm Warning	GID	Jewell, Mitchell	42 min
Aug 10, 3:55 PM CDT	Heat Advisory	GID	Jewell, Mitchell, Osborne, Rooks	29 hr

Nearby

Special Weather Statements in Nebraska, 2021 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.