Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS Hastings, NE

August 15, 2021Harlan County, Nebraska

NWS Hastings, NE issued this special weather statement at Aug 15, 2021, 12:37 AM CDT for Harlan County, Nebraska. It was in force for 38 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 15, 2021, 12:37 AM CDT (05:37 UTC)
Expired: Aug 15, 2021, 1:15 AM CDT
In force: 38 min
Issued by: NWS Hastings, NE
Hail: 0.50 in
Wind: 40

County Harlan County, NE

The radar

The Grand Island radar (KUEX), 82 km from the middle of the area, began a volume at 05:41 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, 5.6 hours before the alert went out and 165 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: 1783 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 1421 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 276 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 16.9

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 14, 6:17 PM CDT, 6 hours 20 minutes earlier.

Area forecast discussion, Aug 14, 6:17 PM CDT, 6 hours 20 minutes before

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</head>
<body>
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Hazardous weather outlook, Aug 14, 2:48 PM CDT, 9 hours 49 minutes before

Hazardous Weather Outlook
National Weather Service Hastings NE
248 PM CDT Sat Aug 14 2021

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
151200-
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-
248 PM CDT Sat Aug 14 2021

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

.DAY ONE...This Afternoon and Tonight.

Thunderstorms are possible for portions of the area tonight across
the outlook area. A few of these storms may be strong to severe,
mainly along and west of Highway 183.

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

There are on and off chances for thunderstorms Sunday through
Friday. A few storms may be strong to severe Sunday and Monday,
especially west of Highway 183.

.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

Heinlein

In the hours before

Special weather statement, Aug 15, 12:37 AM CDT, 0 minutes before

Special Weather Statement
National Weather Service Hastings NE
1237 AM CDT Sun Aug 15 2021

KSZ005-NEZ083-150615-
Phillips KS-Harlan NE-
1237 AM CDT Sun Aug 15 2021

...A strong thunderstorm will impact portions of northern Phillips
and southeastern Harlan Counties through 115 AM CDT...

At 1236 AM CDT, Doppler radar was tracking a strong thunderstorm over
Woodruff, or 19 miles north of Phillipsburg, moving east at 5 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

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

This strong thunderstorm will be near...
  Woodruff around 1250 AM CDT.
  Alma around 1255 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4000 9951 4025 9951 4021 9921 4006 9918
      4000 9918 4000 9919 3999 9918 3979 9920
      3980 9954
TIME...MOT...LOC 0536Z 288DEG 6KT 4001 9944

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Rossi

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 15, 2:21 AM CDT	Special Weather Statement	GID	Franklin	39 min
Aug 15, 2:35 AM CDT	Special Weather Statement	GID	Harlan	40 min
Aug 15, 3:53 AM CDT	Areal Flood Advisory	GID	Furnas, Harlan	6 hr
Aug 15, 4:03 AM CDT	Special Weather Statement	GID	Phelps	42 min
Aug 15, 6:31 AM CDT	Severe Thunderstorm Warning	GID	Adams	29 min
Aug 15, 6:55 AM CDT	Special Weather Statement	GID	Clay	35 min
Aug 15, 7:24 AM CDT	Special Weather Statement	GID	Hamilton	36 min
Aug 15, 8:03 AM CDT	Special Weather Statement	GID	York	27 min
Aug 15, 3:46 AM CDT	Special Weather Statement	GID	Phillips	44 min
Aug 15, 4:20 PM CDT	Special Weather Statement	GID	Mitchell	25 min
Aug 15, 5:08 PM CDT	Special Weather Statement	GID	Jewell	52 min

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.