Alert archive / Nebraska / Tornado Warnings in 1991
Tornado Warning 16, NWS North Platte, NE
NWS North Platte, NE issued this tornado warning at May 30, 1991, 9:37 PM CDT for Custer County, Nebraska. It was in force for 38 min.
The area
The counties it named.
The facts
- Issued
- May 30, 1991, 9:37 PM CDT (02:37 UTC)
- Expired
- May 30, 1991, 10:15 PM CDT
- In force
- 38 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County Custer County, NE
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.6 hours before the alert went out and 79 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
- 2074 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1228 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 194 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 9.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLBF 310240 TORLBF NEC041-310315- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 937 PM CDT THU MAY 30 1991 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 1015 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN CENTRAL NEBRASKA ...NORTHEASTERN CUSTER COUNTY AT 931 PM CDT RADAR SHOWED A POSSIBLE TORNADO LOCATED 5 MILES SOUTHEAST OF BROKEN BOW NEBRASKA...WHICH IS 49 MILES EAST NORTHEAST OF NORTH PLATTE. THE TORNADO WAS MOVING NORTH AT 25 MPH. PERSONS IN COMSTOCK...WESTERVILLE AND SARGENT SHOULD TAKE COVER. THIS WARNING SUPERCEDES THE EARLIER SEVERE THUNDERSTORM ISSUED EARLIER FOR EASTERN CUSTER COUNTY. IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS... OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS. SC
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, May 30, 8:57 PM CDT, 40 minutes before
NEZ007-310255- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 855 PM CDT THU MAY 30 1991 ...THUNDERSTORMS DEVELOPING ACROSS SOUTHEAST CUSTER COUNTY... LATEST RADAR OBSERVATIONS SHOWED THUNDERSTORMS DEVELOPING RAPIDLY ACROSS NORTHEAST DAWSON COUNTY ABOUT 30 MILES SOUTH OF BROKEN BOW NEBRASKA. THESE THUNDERSTORMS WILL BE MOVING NORTH AT 25 MILES AN HOUR INTO SOUTHERN CUSTER COUNTY. PERSONS IN THE TOWN OF ANSLEY SHOULD PREPARE FOR THUNDERSTORMS WITH VERY HEAVY RAIN...STRONG GUSTY WINDS...LARGE HAIL AND POSSIBLE TORNADOES BY 940 PM CDT. ANOTHER THUNDERSTORM WAS DEVELOPING NEAR THE TOWN OF OCONTO...WHICH IS 40 MILES EAST OF NORTH PLATTE. REMEMBER A TORNADO WATCH REMAIXNS IN EFFECT FOR MUCH OF SOUTHWEST AND WEST CENTRAL NEBRASKA UNTIL 2 AM CDT. SC
Special weather statement, May 30, 9:00 PM CDT, 37 minutes before
NEZ007-310255- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 855 PM CDT THU MAY 30 1991 ...THUNDERSTORMS DEVELOPING ACROSS SOUTHEAST CUSTER COUNTY... AT 850 PM CDT...LATEST RADAR OBSERVATIONS SHOWED THUNDERSTORMS DEVELOPING RAPIDLY ACROSS NORTHEAST DAWSON COUNTY ABOUT 30 MILES SOUTH OF BROKEN BOW NEBRASKA. THESE THUNDERSTORMS WILL BE MOVING NORTH AT 25 MILES AN HOUR INTO SOUTHERN CUSTER COUNTY. PERSONS IN THE TOWN OF ANSLEY SHOULD PREPARE FOR THUNDERSTORMS WITH VERY HEAVY RAIN...STRONG GUSTY WINDS...LARGE HAIL AND POSSIBLE TORNADOES BY 940 PM CDT. ANOTHER THUNDERSTORM WAS DEVELOPING NEAR THE TOWN OF OCONTO...WHICH IS 40 MILES EAST OF NORTH PLATTE. REMEMBER A_ TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF SOUTHWEST AND WEST CENTRAL NEBRASKA UNTIL 2 AM CDT. SC
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 9:25 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 65 min |
| May 30, 9:45 PM CDT | Severe Thunderstorm Warning | LBF | Garfield, Loup | 60 min |
| May 30, 10:02 PM CDT | Tornado Warning | LBF | Garfield, Loup | 28 min |
| May 30, 10:16 PM CDT | Tornado Warning | LBF | Custer | 29 min |
| May 30, 10:38 PM CDT | Severe Thunderstorm Warning | LBF | Garfield, Holt, Loup | 67 min |
| May 30, 10:50 PM CDT | Tornado Warning | LBF | Custer | 10 min |
| May 30, 10:53 PM CDT | Tornado Warning | LBF | Garfield, Loup | 37 min |
| May 30, 11:58 PM CDT | Severe Thunderstorm Warning | LBF | Madison | 32 min |
| May 31, 12:08 AM CDT | Tornado Warning | LBF | Madison, Stanton | 37 min |
| May 31, 12:52 AM CDT | Tornado Warning | LBF | Madison, Stanton | 23 min |
Nearby
Tornado Warnings in Nebraska, 1991Every tornado warning in 1991Tornadoes in 1991
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.