Alert archive / Nebraska / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 62, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 29, 1989, 8:01 PM MDT for Sheridan County, Nebraska. It was in force for 59 min.
The area
The counties it named.
The facts
- Issued
- Aug 29, 1989, 8:01 PM MDT (02:01 UTC)
- Expired
- Aug 29, 1989, 9:00 PM MDT
- In force
- 59 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Sheridan 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
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.0 hours before the alert went out and 214 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
- 1929 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 897 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 143 m²/s²
- 0-3 km storm-relative helicity
- 205 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 8.2
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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.
In the hours before
Special weather statement, Aug 29, 3:35 PM MDT, 4 hours 26 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 335 PM MDT TUE AUG 29 1989 ....THUNDERSTORM OVER THE NORTHEAST NEBRASKA PANHANDLE... A THUNDERSTORM HAS DEVELOPED RAPIDLY OVER THE NORTHEAST CORNER OF THE NEBRASKA PANHANDLE THIS AFTERNOON. AT 330 PM MDT THE THUNDERSTORM WAS LOCATED ALONG THE NEBRASKA...SOUTH DAKOTA BOARDER TO THE NORTH OF GORDON NEBRASKA...OR 30 MILES NORTHEAST OF CHADRON. MOVEMENT WAS EAST AT 15 MPH. BwRIEF HEAVY RAIN...GUSTY WIND AND SMALL HAIL IS POSSIBLE WITH THIS STORM OVER NORTHEAST SHERIDAN COUNTY OF THE NEBRASKA PANHANDLE UNTIL 430 PM MDT. KOSEL
Special weather statement, Aug 29, 4:15 PM MDT, 3 hours 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE VALENTINE NE ISSUED BY SCOTTSBLUFF NE 415 PM MDT TUE AUG 29 1989 ...THUNDERSTORMS IN WEST CHERRY COUNTY OF NORTHCENTRAL NEBRASKA... AT 410 PM MDT...RADAR INDICATED THUNDERSTORMS IN WEST CHERRY COUNTY OF NORTHCENTRAL NEBRASKA. THE STRONGEST STORM WAS LOCATED 20 MILES WEST OF MERRIMAN...OR 75 MILES WEST OF VALENTINE NEBRASKA IN WEST CHERRY COUNTY. THE STORMS WERE MOVING EAST AT 15 MPH. BRIEF HEAVY RAIN...STRONG WINDS...AND HAIL ARE POSSIBLE WITH THESE STORMS AS THEY MOVE ACOSS WEST AND CENTRAL CHERRY COUNTY OF NORTHCENTRAL NEBRASKA UNTIL 530 PM MDT. PLISCHKE
Special weather statement, Aug 29, 4:16 PM MDT, 3 hours 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 415 PM MDT TUE AUG 29 1989 ...A STRONG THUNDERSTORM DEVLOPING OVER NORTHERN LARAMIE COUNTY... AT 405 PM MDT RADAR INDICATED AN ISOLATED BUT INTENSE THUNDERSTORM OVER NORTHERN LARAMIE COUNTY ABOUT 10 MILES SOUTHWEST OF LAGRANGE. IT WAS MOVING NORTHEAST AT ABOUT 20 MILES AN HOUR AN WILL PASS NEAR LAGRANGE WITHIN THE NEXT 45 MINUTES. BRIEF HEAVY RAIN...STRONG GUSTY WINDS AND SMALL HAIL ARE POSSIBLE WITH THIS STORM. RADAR ALSO SHOWED SOME OTHER THUNDERSTORMS DEVELOPING OVER LARAMIE COUNTY THAT COULD BECOME FAIRLY STRONG OVER THE NEXT FEW HOURS. PEOPLE OVER LARAMIE AND GOSHEN COUNTY SHOULD KEEP AN EYE TO THE SKY AND BE PREPARED TO SEEK SHELTER SHOULD THREATENING CONDITIONS OCCUR. EKB
Special weather statement, Aug 29, 5:06 PM MDT, 2 hours 55 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 505 PM MDT TUE AUG 29 1989 ....THUNDERSTORM IN THE SOUTHWEST NEBRASKA PANHANDLE... AT 500 PM MDT...RADAR INDICATED A THUNDERSTORM 20 MILES SOUTHWEST OF SCOTTSBLUFF NEBRASKA IN WEST BANNER COUNTY. THE STORM WAS MOVING NORTHEAST AT 15 MPH. BRIEF HEAVY RAIN...GUSTY WIND AND SMALL HAIL ARE POSSIBLE WITH THIS STORM AS IT MOVES ACROSS BANNER AND SCOTTSBLUFF COUNTY UNTIL 630 PM MDT. PLISCHKE
Special weather statement, Aug 29, 5:32 PM MDT, 2 hours 29 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE VALENTINE NE ISSUED BY SCOTTSBLUFF NE 530 PM MDT TUE AUG 29 1989 ...THUNDERSTORMS IN CHERRY COUNTY OF NORTHCENTRAL NEBRASKA... AT 525 PM MDT...RADAR INDICATED THUNDERSTORMS IN CHERRY COUNTY OF NORTHCENTRAL NEBRASKA. THE STRONGEST STORMS WERE LOCATED 15 MILES SOUTHWEST OF MERRIMAN...OR 65 MILES WEST OF VALENTINE NEBRASKA...AND 12 MILES NORTH OF VALENTINE NEBRASKA NEAR THE NEBRASKA/SOUTH DAKOTA BORDER. THE STORMS WERE MOVING SOUTHEAST AT 20 MPH. BRIEF HEAVY RAIN...STRONG WINDS...AND HAIL ARE POSSIBLE WITH THESE STORMS AS THEY MOVE ACROSS CHERRY COUNTY OF NORTHCENTRAL NEBRASKA UNTIL 730 PM MDT. PLISCHKE
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 9:06 PM MDT | Severe Thunderstorm Warning | CYS | Sheridan | 69 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1989Every severe thunderstorm warning in 1989
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.