Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 70, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Jul 17, 1990, 7:44 PM CDT for Knox County, Nebraska. It was in force for 46 min.
The area
The counties it named.
The facts
- Issued
- Jul 17, 1990, 7:44 PM CDT (00:44 UTC)
- Expired
- Jul 17, 1990, 8:30 PM CDT
- In force
- 46 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County Knox County, NE
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 0.7 hours before the alert went out and 193 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
- 3587 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 176 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KOFK 180044
SVROFK
NEC107-180130-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
744 PM CDT TUE JUL 17 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 830 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE NORTHEAST PART OF NEBRASKA
NORTHERN KNOX
AT 735 PM CDT NORFOLK RADAR SHOWED A SEVERE THUNDERSTORM 20 MILES
SOUTHWEST OF YANKTON OR NEAR LINDY IN KNOX COUNTY.
THE STORM WAS DRIFTING SOUTH.
COMMUNITIES AFFECTED... LINDY... CROFTON AND POSSIBLY CENTER.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...DEADLY
LIGHTNING AND VERY HEAVY RAIN THAT CAN QUICKLY FLOOD A LOW LYING
AREA. SEVERE THUNDERSTORMS CAN ALSO PRODUCE A TORNADO WITH LITTLE
OR NO WARNING.
IF YOU ARE OUTSIDE...TAKE SHELTER IN A STRONG BUILDING. REMAIN
INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. TAKE SHELTER
IN AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
SMITHWhat 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.
In the hours before
Special weather statement, Jul 17, 7:10 PM CDT, 34 minutes before
NEZ006-007-012-016-180015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 710 PM CDT TUE JUL 17 1990 ...THUNDERSTORMS BUILDIING ACROSS SOUTHWEST NEBRASKA. AT 7 PM CDT...THUNDERSTORMS WERE BUILDING ACROSS SOUTHWEST NEBRASKA. THESE THUNDERSTORMS WERE FROM 10 MILES NORTH OF BROKEN BOW IN CUSTER COUNTY OR 55 MILES NORTHEAST OF NORTH PLATTE NE. THE THUNDERSTORMS EXTEND SOUTHWEST INTO DUNDY COUNTY ABOUT 15 MILES WEST OF BENKELMAN OR 41 MILES NORTH OF GOODLAND KANSAS. THE STRONGES THUNDERSTORMS ARE IN LINCOLN COUNTY ABOUT 25 MILES SOUTHWEST OF NORTH PLATTE NE AND 10 MILES NORTH OF NORTH PLATTE NE. THE THUNDERSTORMS WERE MOVING SOUTH TO SOUTHEAST AT 15 MPH. BRIEF HEAVY RAIN...SMALL HAIL..GUSTY SURFACE WINDS OF 30 TO 40 MPH AS THESE THUNDERSTORMS MOVE ACROSS CHASE AND PERKINS COUNTY. SMALLFIELD
Special weather statement, Jul 17, 7:13 PM CDT, 31 minutes before
NEZ006-007-012-016-180015- SPECIAL WEATHER STATEMENT CORRECTION LAST PARAGRAH LAST LINE NATIONAL WEATHER SERVICE NORTH PLATTE NE 710 PM CDT TUE JUL 17 1990 ...THUNDERSTORMS BUILDIING ACROSS SOUTHWEST NEBRASKA. AT 7 PM CDT...THUNDERSTORMS WERE BUILDING ACROSS SOUTHWEST NEBRASKA. THESE THUNDERSTORMS WERE FROM 10 MILES NORTH OF BROKEN BOW IN CUSTER COUNTY OR 55 MILES NORTHEAST OF NORTH PLATTE NE. THE THUNDERSTORMS EXTEND SOUTHWEST INTO DUNDY COUNTY ABOUT 15 MILES WEST OF BENKELMAN OR 41 MILES NORTH OF GOODLAND KANSAS. THE STRONGES THUNDERSTORMS ARE IN LINCOLN COUNTY ABOUT 25 MILES SOUTHWEST OF NORTH PLATTE NE AND 10 MILES NORTH OF NORTH PLATTE NE. THE THUNDERSTORMS WERE MOVING SOUTH TO SOUTHEAST AT 15 MPH. BRIEF HEAVY RAIN...SMALL HAIL..GUSTY SURFACE WINDS OF 30 TO 40 MPH AS THESE THUNDERSTORMS MOVE ACROSS SIUTHWEST NEBRASKA. SMALLFIELD
Nearby
Severe Thunderstorm Warnings in Nebraska, 1990Every severe thunderstorm warning in 1990
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.