Alert archive / Nebraska / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 38, NWS Hastings, NE

June 12, 2000Sherman County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jun 12, 2000, 10:36 PM CDT for Sherman County, Nebraska. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 12, 2000, 10:36 PM CDT (03:36 UTC)
Expired: Jun 12, 2000, 11:30 PM CDT
In force: 54 min
Issued by: NWS Hastings, NE
Area: Whole counties

County Sherman County, NE

The radar

The Grand Island radar (KUEX), 110 km from the middle of the area, began a volume at 03:38 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jun 12, 7:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 3.6 hours before the alert went out and 136 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: 1538 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 2700 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 169 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

216 
WUUS53 KGID 130336
SVRGRI
NEC163-130430-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
1036 PM CDT MON JUN 12 2000

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SHERMAN COUNTY IN CENTRAL NEBRASKA

* UNTIL 1130 PM CDT

* AT 1028 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 18 MILES NORTHWEST OF LITCHFIELD...OR ABOUT 12
  MILES SOUTHEAST OF BROKEN BOW...MOVING EAST AT 10 MPH.

SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE...

  LITCHFIELD
  HAZARD
  LOUP CITY
  ASHTON

PEOPLE IN SHERMAN COUNTY SHOULD SEEK SHELTER IN A STURDY STRUCTURE
AND STAY AWAY FROM WINDOWS. THE PRIMARY SEVERE WEATHER THREAT IS
STRONG AND DAMAGING WINDS.

$$

LAT...LON 4138 9919 4105 9918 4106 9875 4139 9874

NNNN

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 Jun 12, 2:51 PM CDT, 7 hours 45 minutes earlier.

Area forecast discussion, Jun 12, 2:51 PM CDT, 7 hours 45 minutes before

SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
251 PM CDT MON JUN 12 2000

...PRECIP CHANCES AND FRONTAL TIMING MAIN CONCERNS...

LAST NIGHTS CONVECTION WELL EAST OF AREA NOW LEAVING CLEAR SKIES IN
ITS WAKE.  STRONG SUBSIDENCE BEHIND WAVE LEADING TO STABLE CONDITIONS
WILL SLOWLY DESTABILIZE THIS AFTERNOON AND EVENING WITH SURFACE
HEATING AND MOISTURE ADVECTION.  AS THE MAIN TROUGH CONTINUES TO
PUNCH THROUGH THE NORTHERN ROCKIES TODAY LEE SIDE TROUGHING UNDERWAY.
THE FIRST ROUND OF CONVECTION...WHICH IS ALREADY UNDERWAY...SHOULD
MOVE EASTWARD THIS EVENING AND OVERNIGHT WHERE CONDITIONS ARE MORE
UNSTABLE.  A LLJ OF 40 TO 50 KNOTS SHOULD HELP TO KEEP THE CONVECTION
GOING THROUGH THE EVENING WITH SOME CHANCE OF SEVERE WEATHER THROUGH
THE NIGHT.  THE STRONGEST DYNAMICS APPEAR TO BE NORTH OF THE AREA BUT
STILL EXPECT STRONG TSTORMS TO MAKE IT INTO THE CWA LATE.  WILL WORD
40 POPS ACROSS REGION OVERNIGHT.

TOMORROW MORNING BIG QUESTION WILL BE HOW FAR SOUTH PREVIOUS
CONVECTION PUSHES MAIN BOUNDARY SOUTH IN CWA OR EVEN IF THE
CONVECTION DISSIPATES BEFORE THE COLD FRONT MOVES INTO THE CWA.
EXPECT INITIAL FRONTAL BOUNDARY TO MAKE DASH ACROSS WESTERN CWA IN
THE MID MORNING.  HOWEVER DUE TO DIURNAL TIMING WILL CONTINUE ONLY
CHANCE POPS WITHOUT MENTION OF STRONG STORMS THERE.  ETA/AVN TUESDAY
BRINGS FRONT THROUGH CENTRAL CWA BY 18Z THEN ENTIRE CWA BY 00Z.
STRONG TO SEVERE TSTORMS SHOULD ORGANIZE SOMEWHERE SOUTH AND EAST OF
HASTINGS IN THE AFTERNOON AND ROLL SOUTHEASTWARD.  EXPECT THE
HEAVIEST STUFF TO BE OUT OF THE AREA BY 00Z.

GUIDANCE TEMPS SEEM REASONABLE THROUGHOUT.

ONCE FRONT PASSES STRONG NW WINDS DEVELOP AND CONTINUE THROUGH
WEDNESDAY AND WEDNESDAY NIGHT.  COOLER DRIER AIR WILL BE ON TAP
THROUGH THURSDAY.  THURSDAY NIGHT SOME QUESTION WHETHER TO CALL FOR
CHANCES.  MEDIUM RANGE INDICATES SECONDARY STRONG NW SYSTEM CARVING
OUT TROUGH OVER THE REGION LATE THURSDAY NIGHT INTO FRIDAY MORNING.
WILL INTRODUCE CHANCES HERE.  THEN COOLER TEMPS FOR SATURDAY.

GID...NONE.

10

In the hours before

Local storm report, Jun 12, 9:42 PM CDT, 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
942 PM CDT MON JUN 12 2000

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0937 PM    7 NNW GOTHENBURG          NE    .75 INCH HAIL
06/12/00   DAWSON

Local storm report, Jun 12, 10:04 PM CDT, 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
1004 PM CDT MON JUN 12 2000

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0930 PM    GOTHENBURG                NE    .75 INCH HAIL
06/12/00   DAWSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 9:06 PM CDT	Severe Thunderstorm Warning	GID	Dawson	39 min
Jun 12, 9:45 PM CDT	Severe Thunderstorm Warning	GID	Dawson	60 min
Jun 12, 10:25 PM CDT	Severe Thunderstorm Warning	GID	Valley	50 min
Jun 12, 10:53 PM CDT	Severe Thunderstorm Warning	GID	Greeley	67 min
Jun 13, 12:15 AM CDT	Severe Thunderstorm Warning	GID	Merrick, Nance	45 min
Jun 13, 6:56 AM CDT	Severe Thunderstorm Warning	GID	Valley	34 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2000 Every severe thunderstorm warning in 2000

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.