Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 76, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 3, 1986, 10:14 PM MDT for Sheridan County, Nebraska. It was in force for 26 min.
The area
The counties it named.
The facts
- Issued
- Aug 3, 1986, 10:14 PM MDT (04:14 UTC)
- Expired
- Aug 3, 1986, 10:40 PM MDT
- In force
- 26 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
Rapid City, SD (KRAP), launched 00:00Z, 4.2 hours before the alert went out and 178 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
- 1228 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 1957 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -43 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBFF 040414 SVRBFF NEC161-040440- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 1014 PM MDT SUN AUG 3 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1040 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTY OF PANHANDLE OF NEBRASKA...CENTRAL SHERIDAN AT 1010 PM MDT..RADAR INDICATED A SEVERE THUNDERSTORM 12 MILES SOUTH OF RUSHVILLE MOVING TO THE SOUTH AT 10 TO 15 MPH. REMEMBER A SEVERE THUNDERSTORM CAN PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH..LARGE HAIL..DEADLY LIGHTNING AND VERY HEAVY RAIN THAT CAN QUICKLY FLOOD LOW LYING AREAS. THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE WARNING..SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE TO A PLACE OF SAFETY IF ONE IS SPOTTED. HONTON
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 3, 7:34 PM MDT, 2 hours 40 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 730 PM MDT SUN AUG 3 1986 A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE EAST QUARTER OF WYOMING UNTIL 9 PM MDT THIS EVENING. NO SEVERE WEATHER HAS BEEN REPORTED IN SOUTHEAST WYOMING SINCE 630 PM. AT 725 PM RADAR INDICATED A LINE OF STRONG THUNDERSTORMS FROM NEAR SCOTTSBLUFF NEBRASKA TO SOUTH OF TORRINGTON WYOMING TO ABOUT 10 MILES SOUTHEAST OF WHEATLAND WYOMING. THIS LINE OF STORMS WAS MOVING SOUTHEAST AROUND 30 MPH. ALTHOUGH THESE STORMS WERE BELOW SEVERE LIMITS...THEY WERE STILL CAPABLE OF PRODUCING SMALL HAIL AND BRIEF HEAVY RAINS. ONLY ISOLATED THUNDERSHOWERS WERE NOTED OVER THE REST OF SOUTHEAST W YOMING AT 725 PM. THESE WERE ALSO MOVING SOUTHEAST AT 30 MPH. HATTEN
Special weather statement, Aug 3, 7:51 PM MDT, 2 hours 23 minutes before
RADAR SUMMARY NATIONAL WEATHER SERVICE ALLIANCE NE 735 PM MDT SUN AUG 3 1986 A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE NEBRASKA PANHANDLE UNTIL 8 PM MDT. AT 7.30 PM MDT A LINE OF VERY STRONG THUNDERSTORMS WAS MOVING ACROSS THE NEBRASKA PANHANDLE..THIS LINE OF STORMS WAS SHOWING SIGNS OF WEAKENING IN STRENGTH. THE STRONGEST THUNDERSTORMS WERE 5 TO 20 MILES WEST OF SCOTTSBLUFF 20 MILES NORTHWEST OF ALLIANCE AND 5 MILES NOR[THWEST OF RUSHVILLE. AND ALSO 10 MILES WEST AND NORTH OF SIDNEY. THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT 20 MILES AN HOUR. DOUGHERTY
Special weather statement, Aug 3, 8:00 PM MDT, 2 hours 14 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 800 PM MDT SUN AUG 3 1986 A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE EAST QUARTER OF WYOMING UNTIL 9 PM MDT THIS EVENING. AT 755 PM ONLY WIDELY SCATTERED THUNDERSTORMS WERE OCCURRING OVER SOUTHEAST WYOMING. MOST OF THESE WERE ALONG THE WYOMING/NEBRASKA STATE BORDER. ALL OF THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 30 MPH. ALTHOUGH THE STORMS WERE WELL BELOW SEVERE LIMITS...A FEW COULD STILL PRODUCE SMALL HAIL AND BRIEF HEAVY RAINS. HATTEN
Special weather statement, Aug 3, 8:01 PM MDT, 2 hours 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 800 PM MDT SUN AUG 3 1986 ...THE SEVERE THUNDERSTORM WARNING ISSUED FOR WESTERN BOX BUTTE.. WESTERN CHEYENNE..SOUTHERN SIOUX AND SCOTTS BLUFF COUNTIES IN THE NEBRASKA PANHANDLE HAS EXPIRED... ...A SEVERE THUNDERSTORM WATCH CONTINUES FOR THE NEBRASKA PANHANDLE UNTIL 9 PM MDT... AT 759 PM MDT...RADAR INDICATED THE THUNDERSTORMS OVER THE NEBRASKA PANHANDLE HAD WEAKENED. RADAR STILL SHOWED STRONG THUNDERSTROMS 30 MILES EAST OF CHADRON NEBRASKA..NEAR RUSHVILLE IN NORTHERN SHERIDAN COUNTY..AND ANOTHER STRONG STORM THAT WAS 11 MILES EAST OF SCOTTSBLUFF NEBRASKA. THESE STORMS WERE MOVING SOUTHEAST AT 20 MILES AN HaOUR. HEAVY RAIN..GUSTY WINDS AND SMALL HAIL ARE POSSIBLE WITH THESE STORMS OVER MORRILL AND SHERIDAN COUNTIES OF THE NEBRASKA PANHANDLE UNTIL 9 PM MDT. HONTON
Special weather statement, Aug 3, 8:55 PM MDT, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 850 PM MDT SUN AUG 3 1986 THE SEVERE THUNDERSTORM WATCH ISSUED EARLIER FOR THE EAST QUARTER OF WYOMING WILL BE ALLOWED TO EXPIRE AT 9 PM MDT. AT 845 PM ONLY WIDELY SCATTERED THUNDERSTORMS WERE OCCURRING OVER EASTERN WYOMING. ALL OF THESE WERE WELL BELOW SEVERE LIMITS. THE THUNDERSTORMS CONTINUED TO MOVE SOUTHEAST AT 25 MPH. MOST...IF NOT ALL...OF THE THUNDERSTORMS WI0LL HAVE DISSIPATED BY SHORTLY AFTER MIDNIGHT. HATTEN
Local storm report, Aug 3, 9:53 PM MDT, 21 minutes before
STORM REPORT NATIONAL WEATHER SERVICE CHEYENNE WY 950 PM MDT SUN AUG 3 1986 TIME-MDT EVENT/LOCATION 1506-1520 HAIL UP TO 1 IN...S CNTRL LARAMIE CNTY...2-4 S/SE CYS 1545 HAIL UP TO 3/4 IN...KS CNTRL LARAMIE CNTY...3/4 E CYS 1715 3/4 - 1 IN HAIL...GLENDO/NRN PLATTE CNTY...72 ESE CPR 1812 GOLFBALL HAIL...GUERNSEY/NE PLATTE CNTY...63 NW BFF DASELER/HATTEN
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 6:06 PM MDT | Severe Thunderstorm Warning | CYS | Sioux | 59 min |
| Aug 3, 7:06 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 54 min |
| Aug 3, 7:06 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Scotts Bluff, Sioux | 54 min |
| Aug 4, 3:31 PM MDT | Severe Thunderstorm Warning | CYS | Sheridan | 39 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1986Every severe thunderstorm warning in 1986
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.