Alert archive / Kansas / Special Weather Statements in 2021

Special Weather Statement, NWS Hastings, NE

September 2, 2021Osborne County, Kansas

NWS Hastings, NE issued this special weather statement at Sep 2, 2021, 4:21 PM CDT for Osborne County, Kansas. 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
Sep 2, 2021, 4:21 PM CDT (21:21 UTC)
Expired
Sep 2, 2021, 5:00 PM CDT
In force
39 min
Issued by
NWS Hastings, NE
Hail
0.50 in
Wind
40

County Osborne County, KS

The radar

The Grand Island radar (KUEX), 106 km from the middle of the area, began a volume at 21:24 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.

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 9.4 hours before the alert went out and 211 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-pSkew-T log-p diagram, Dodge City, at 12:00Z on 2021-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 713 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 12:00Z on 2021-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 178 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
713 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
1170 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
178 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.0

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 Sep 2, 4:18 PM CDT, 3 minutes earlier.

Area forecast discussion, Sep 2, 4:18 PM CDT, 3 minutes before
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Hazardous weather outlook, Sep 2, 3:11 PM CDT, 1 hour 10 minutes before
Hazardous Weather Outlook
National Weather Service Hastings NE
311 PM CDT Thu Sep 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-
311 PM CDT Thu Sep 2 2021

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

.DAY ONE...This Afternoon and Tonight.

Scattered thunderstorms are expected to develop along and ahead of
a cold front late this afternoon across areas along and west of a
line from Ord to Phillipsburg. These thunderstorms could become
severe with large hail near 1 inch in diameter, damaging wind
gusts near 60 MPH, and isolated tornadoes all possible. By this
evening, thunderstorms should congeal into a line and move east
and southeast through the remainder of the forecast area. Large
hail and damaging winds will remain a concern through about 11PM.
Localized areas of heavy rain are also possible, which could lead
to mainly minor, short term flooding issues, particularly in
areas that have seen recent heavy rainfall. Lingering weak
thunderstorms will remain possible along and south of the state
line through the remainder of the overnight.

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

During the day Friday, small chances for thunderstorms continue
mainly south of the Nebraska-Kansas border, but most of the
outlook area should be storm-free. Then Friday evening into
Saturday morning, at least small chances for storms expand
northward to include the entire outlook area, but with the highest
chances favoring north central Kansas, where another round of
locally heavy rain and perhaps a few strong storms could occur.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed, mainly between 4PM and 11PM. Any
reports of large hail, damaging winds, and heavy rain are greatly
appreciated.

&&

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

Thies

In the hours before

Special weather statement, Sep 2, 4:21 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Hastings NE
421 PM CDT Thu Sep 2 2021

KSZ018-019-022200-
Osborne KS-Mitchell KS-
421 PM CDT Thu Sep 2 2021

...A strong thunderstorm will impact portions of northwestern
Mitchell and eastern Osborne Counties through 500 PM CDT...

At 421 PM CDT, Doppler radar was tracking a strong thunderstorm 10
miles southwest of Osborne, or 28 miles north of Russell, moving
northeast at 35 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...
  Osborne around 440 PM CDT.

Other locations in the path of this storm include Tipton, Downs and
Cawker City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3917 9879 3932 9892 3957 9854 3957 9832
      3944 9820
TIME...MOT...LOC 2121Z 234DEG 28KT 3929 9878

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

Heinlein

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 5:52 PM CDTTornado WarningGIDKearney, Phelps23 min
Sep 2, 6:14 PM CDTSevere Thunderstorm WarningGIDBuffalo, Kearney, Phelps46 min
Sep 2, 6:20 PM CDTTornado WarningGIDHarlan25 min
Sep 2, 6:48 PM CDTAreal Flood AdvisoryGIDBuffalo, Dawson, Gosper, Phelps3 hr
Sep 2, 6:49 PM CDTSpecial Weather StatementGIDHarlan26 min
Sep 2, 5:08 PM CDTSpecial Weather StatementGIDMitchell52 min

Nearby

Special Weather Statements in Kansas, 2021Every 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.