Alert archive / Nebraska / Tornado Watches in 2000
Tornado Watch 767
The Storm Prediction Center issued this tornado watch at Oct 28, 2000, 5:15 PM MDT for 15 counties in Nebraska. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 28, 2000, 5:15 PM MDT (23:15 UTC)
- Expired
- Oct 28, 2000, 10:00 PM MDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
Counties Chase County, NE, Custer County, NE, Dawson County, NE, Dundy County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Keith County, NE, Lincoln County, NE, Perkins County, NE, Phelps County, NE, Red Willow County, NE
The radar
The North Platte radar (KLNX), 131 km from the middle of the area, began a volume at 23:19 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.
Warnings issued inside it
2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 28, 5:24 PM MDT | Tornado Warning | GID | Furnas | 36 min |
| Oct 28, 5:42 PM MDT | Flash Flood Warning | GLD | Hitchcock, Red Willow | 6 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.3 hours before the alert went out and 48 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 764 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 211 m²/s²
- 0-3 km storm-relative helicity
- 266 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
134 WWUS9 KMKC 282257 SEL7 SEL7 MKC WW 282251 NEZ000-290400- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 767 STORM PREDICTION CENTER NORMAN OK 551 PM CDT SAT OCT 28 2000 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF SOUTHWEST AND SOUTH CENTRAL NEBRASKA EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 615 PM UNTIL 1100 PM CDT. TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 75 STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH NORTHWEST OF NORTH PLATTE NEBRASKA TO 15 MILES SOUTH OF MCCOOK NEBRASKA. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. OTHER WATCH INFORMATION... CONTINUE...WW 765...WW 766... DISCUSSION...LINE OF SEVERE STORMS WITH PRONOUNCED BOW ECHO SIGNATURE IS MOVING NNEWD ACROSS EXTREME NWRN KS...WITH ISOLATED CELLS EAST OF THE LINE MOVING NWD. STORM-RELATIVE VELOCITY DATA FROM DOPPLER RADAR SHOW INDICATIONS OF STORM ROTATION...WHICH IS CONSISTENT WITH VAD/PROFILER COMPUTATIONS OF HELICITY GREATER THAN 300 M2/S2. CONVECTION WILL CONTINUE TO MOVE NWD INTO NEB WHERE AIR MASS REMAINS MARGINALLY UNSTABLE. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1 INCH...EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION VECTOR 19035. ...WEISS 395,1020 412,1021 412,0992 395,0990
Nearby
Tornado Watches in Nebraska, 2000Every tornado watch 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.