Alert archive / Nebraska / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 154, NWS Hastings, NE

August 7, 2000Thayer County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Aug 7, 2000, 5:19 PM CDT for Thayer County, Nebraska. It was in force for 41 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 7, 2000, 5:19 PM CDT (22:19 UTC)
Expired
Aug 7, 2000, 6:00 PM CDT
In force
41 min
Issued by
NWS Hastings, NE
Area
Whole counties

County Thayer County, NE

The radar

The Grand Island radar (KUEX), 74 km from the middle of the area, began a volume at 22:20 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

TimeReportWhereRemark
Aug 7, 5:40 PM CDTHail 1Belvidere, NE

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.3 hours before the alert went out and 164 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, Omaha, NE at 12:00Z on 2000-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 400 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, Omaha, NE at 12:00Z on 2000-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 170 square meters per square second.19395878Sfc1 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
400 J/kg
Mixed-layer CIN
-302 J/kg
Mixed-layer LCL
1847 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
170 m²/s²
0-3 km storm-relative helicity
183 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KGID 072220
SVRGRI
NEC169-072300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
519 PM CDT MON AUG 7 2000

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN THAYER COUNTY IN SOUTH CENTRAL NEBRASKA

* UNTIL 600 PM CDT

* AT 515 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A SEVERE THUNDERSTORM JUST SOUTHEAST OF HEBRON...OR ABOUT 35 MILES 
  NORTH OF CONCORDIA...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GILEAD AT 525 PM CDT
  ALEXANDRIA AT 540 PM CDT

PEOPLE IN EASTERN THAYER COUNTY SHOULD SEEK SHELTER IN A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS. THE PRIMARY SEVERE WEATHER
THREAT IS LARGE HAIL TO ONE INCH IN DIAMETER.

$$

LAT...LON 4012 9765 3999 9748 4021 9737 4036 9738

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 Aug 7, 2:03 PM CDT, 3 hours 16 minutes earlier.

Area forecast discussion, Aug 7, 2:03 PM CDT, 3 hours 16 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
203 PM CDT MON AUG 7 2000

MODELS IN FAIRLY GOOD AGREEMENT WITH THE OVERALL PATTERN AS ZONAL
FLOW IN THE MID AND UPPER LEVELS UNDERGOES SOME AMPLIFICATION
DURING THE PD AND WE END UP UNDER NW FLOW AGAIN. HOWEVER THEIR BIG
DEFICIENCY IS HANDLING OF LOW LEVEL MOISTURE...EACH OF THE MODELS
BEING WAY TOO DRY. THIS HAS SOME IMPACT WITH A GENERAL LACK OF QPF
THROUGH THE FP.

UPPER SHORTWAVE TROF WELL DEFINED IN MORNING UAA AND IN PROFILERS
THIS AFTERNOON MOVING THROUGH WRN SDAK. THIS WAVE WILL MARCH EWD
WITH BEST RAIN CHANCES TO OUR NORTH. HOWEVER MID LEVEL LAPSE RATES
WILL BE QUITE STEEP EVEN ACRS THE NERN COUNTIES AND THINK THAT SOME
EXTENSION OF TSRA DOWN THE TROUGH IS POSSIBLE. TO THE SOUTH SHEAR
AXIS FROM OLD SW TX UPPER LOW HANGING IN FROM SW TX TO NC KS.
REMNANTS OF OLD CONVECTION FROM WRN KS LAST STILL DEPOSITING SOME
SPRINKLES AND WIDESPREAD ACCAS ACRS SRN ZONES. THINK EFFECTS WILL
LINGER TONIGHT AND WILL THUS KEEP SMALL POPS GOING THERE. TO THE WEST
AM LEANING TWD DRY...ALTHOUGH SOME WEAK DYNAMICS APPARENT ON UAA
AND SATELLITE IMAGERY MAY KICK OFF SOME ISOLATED STORMS OUT WEST.

AFTERWARDS...DYNAMICS MUCH WEAKER AS UPPER RIDGE BUILDS. WILL STILL
HAVE BOUNDARY IN AREA OF NEBR ZONES AND WITH MORE LOW LEVEL
MOISTURE EXPECTED TO BE BETTER THAN MODELS PROG AND STEEP MID LEVEL
LAPSE RATES SAGGING SOUTH THINK SOME TSRA NOT OUT OF QUESTION...
MAINLY LATE AFTERNOON/OVERNIGHT SCENARIO. EXCEPTION IS SERN 1/4
WHERE WILL KEEP DRY. TEMPS TO CONTINUE ON THE WARM SIDE. NEAR
GUIDANCE LOOKS REASONABLE.

EXTENDED...RIDGE BEGINS TO EXPAND EWD. DECENT WAVE PROGGED WED NIGHT
AND WITH BOUNDARY STILL AROUND WILL KEEP POPS GOING. THEN DRY WITH
VERY SMALL CHC OF RAIN AS UPPER HEIGHTS BUILD.

.GID...NONE.

BARRITT

Nearby

Severe Thunderstorm Warnings in Nebraska, 2000Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.