Alert archive / Nebraska / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 6, NWS Hastings, NE

May 8, 2000Hamilton County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at May 8, 2000, 12:49 AM CDT for Hamilton 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
May 8, 2000, 12:49 AM CDT (05:49 UTC)
Expired
May 8, 2000, 1:30 AM CDT
In force
41 min
Issued by
NWS Hastings, NE
Area
Whole counties

County Hamilton County, NE

The radar

The Grand Island radar (KUEX), 71 km from the middle of the area, began a volume at 05:50 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
May 8, 1:00 AM CDTHail 1.5Giltner, 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 watch it was issued in

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

IssuedProductOfficeLasted
May 7, 10:00 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 5.8 hours before the alert went out and 147 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 00:00Z on 2000-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2120 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 00:00Z on 2000-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
2120 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1168 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KGID 080550
SVRGRI
NEC081-080630-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
1249 AM CDT MON MAY 8 2000

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HAMILTON COUNTY IN SOUTH CENTRAL NEBRASKA

* UNTIL 130 AM CDT

* AT 1249 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 11
  MILES SOUTH OF GRAND ISLAND...OR 11 MILES WEST OF GILTNER...MOVING
  EAST AT 25 MPH.

PHILLIPS...GILTNER AND AURORA ARE IN THE PATH OF THIS STORM.

WEATHER SPOTTERS REPORTED WALNUT SIZED HAIL JUST SOUTH OF GRAND ISLAND
AT ABOUT 1245 AM. 

PEOPLE IN HAMILTON COUNTY SHOULD SEEK SHELTER IN A STURDYv STRUCTURE
AND STAY AWAY FROM WINDOWS. THE PRIMARY SEVERE WEATHER THREAT IS
LARGE HAIL.

$$

&

LAT...LON 4089 9826 4070 9826 4071 9783 4114 9783

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 May 7, 3:34 PM CDT, 9 hours 15 minutes earlier.

Area forecast discussion, May 7, 3:34 PM CDT, 9 hours 15 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
333 PM CDT SAT MAY 6 2000

ONCE AGAIN GID CWFA WAS THE MAGNET FOR ANOTHER DAY OF LOW CLOUDS
AND FOG. SOME CLEARING NOW TAKING PLACE FROM THE THE SOUTH AND
SOUTHWEST. EVENING PORTIONS OF ZONES REFLECT THAT. DAWSON COUNTY
INCLUDED IN TORNADO WATCH UNTIL 9 PM...BUT ON THE FAR SOUTHEAST
FRINGE OF THE BOX AREA.

CAN'T REALLY ARGUE WITH THE PARAMETERS COMING TOGETHER FOR
PRECIPITATION EVENT TONIGHT. THE 18Z ETA NOW COMING IN IS FURTHER
SOUTH - ABOUT I-80 OR SO - WITH QPF. MM5 CHARTS SUGGESTS RAINFALL
THAT AREA COULD RANGE FROM 1/3 TO 2/3RDS OF AN INCH. EXPECT SEVERE
STORMS TO BE WIDESPREAD IN WESTERN NEBRASKA AND THEN ORGANIZE
ALONG THE SOUTHEAST MOVING COLD FRONT LATE THIS EVENING AND DURING
THE EARLY MORNING HOURS OF MONDAY. STRONG CAP IN PLACE IN SOUTHERN
ZONES WILL BE TOUGH TO OVERCOME DESPITE POTENTIAL WHICH EXISTS.
EXPECT AN INCREASING LOW LEVEL JET TO FEED INTO THIS SYSTEM WITH
DAMAGING WINDS THE LIKELY THREAT...ESPECIALLY IN NORTHERN AREAS.
SHIFTING WINDS OVERNIGHT WITH FRONTAL PASSAGE.

GENERAL AGREEMENT WITH ETA AND SURROUNDING OFFICES IN EXPECTING
FRONT TO PUSH THROUGH AND SOUTH OF CWFA MONDAY. DECENT SUBSIDENCE
AND H85 FLOW SUGGEST BREEZY CONDITIONS FOR A TIME MONDAY. INCLUDE
SMALL MONDAY EVENING CHANCE OF THUNDERSTORMS IN NORTH CENTRAL BUT
BELIEVE MUCH OF CONVECTION ACTIVITY WILL BE SOUTH OF CWFA. SEASONAL
TEMPERATURES THE NEXT TWO DAYS WILL GIVE WAY TO A WARMING TREND
BY WEEK/S END.

.GID...TORNADO WATCH UNTIL 9 PM FOR DAWSON COUNTY.

MORITZ

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 9:51 PM CDTSevere Thunderstorm WarningGIDDawson69 min
May 7, 10:56 PM CDTSevere Thunderstorm WarningGIDDawson64 min
May 8, 12:03 AM CDTSevere Thunderstorm WarningGIDBuffalo57 min
May 8, 12:17 AM CDTSevere Thunderstorm WarningGIDHall, Howard58 min

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.