Alert archive / Nebraska / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 60, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 10, 1987, 5:51 AM CDT for Dakota County, Dixon County, Thurston County, Nebraska. It was in force for 54 min.
The area
The counties it named.
The facts
- Issued
- Jul 10, 1987, 5:51 AM CDT (10:51 UTC)
- Expired
- Jul 10, 1987, 6:45 AM CDT
- In force
- 54 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Dakota County, NE, Dixon County, NE, Thurston 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, 10.9 hours before the alert went out and 117 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
- 3634 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 101 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 KSUX 101051
SVRSUX
NEC043-051-173-101145-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX CITY IA
551 AM CDT FRI JUL 10 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 645 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN NORTHEAST NEBRASKA
...DAKOTA...DIXON...THURSTON
AT 545 AM RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS MOVING
ACROSS DIXON...DAKOTA...AND THURSTON COUNTIES. THESE STORMS WERE
MOVING EAST AT ABOUT 25 MILES AN HOUR.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
SHERLINWhat 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 10, 3:00 AM CDT, 2 hours 51 minutes before
^DSMSPSSUX SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 258 AM CDT FRI JUL 10 1987 ...FLASH FLOOD WATCH REST OF TONIGHT... ...SEVERE THUNDERSTORM WATCH UNTIL 5 AM FRIDAY MORNING... AT 255 AM CDT RADAR SHOWED A LINE OF STRONG THUNDERSTORMS MOVING ACROSS DIXON...DAKOTA...AND THURSTON COUNTIES IN NORTHEAST NEBRASKA. THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT 20 MILES AN HOUR. THESE THUNDERSTORMS HAVE THE POTENTIAL FOR DA;NGEROUS LIGHTNING...HEAVY SHOWERS...STRONG GUSTY WINDS AND SMALL HAIL. RESIDENTS OF DIXON... DAKOTA AND THURSTON COUNTIES SHOULD BE ON THE LOOKOUT FOR ANY SEVERE WEATHER AND TAKE SHELTER IMMEDIATELY IF IT IS OBSERVED. SHERLIN
Special weather statement, Jul 10, 3:33 AM CDT, 2 hours 18 minutes before
^DSMSPSSUX SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 330 AM CDT FRI JUL 10 1987 ...FLASH FLOOD WATCH REST OF TONIGHT... ...SEVERE THUNDERSTORM WATCH UNTIL 5 AM FRIDAY MORNING... AT 325 AM CDT RADAR SHOWED A LINE OF VERY STRONG THUNDERSTORMS WAS MOVING ACROSS DIXON...DAKOTA AND THURSTON COUNTIES IN NORTHEAST NEBRASKA AND MONONA COUNTY IN WESTERN IOWA. THE STORMS WERE MOVING EAST AT 25 MILES AN HOUR. THESE THUNDERSTORMS HAVE THE POTENTIAL FOR DANGEROUS LIGHTNING...HEAVY SHOWERS...STRONG GUSTY WINDS AND SMALL HAIL. RESIDENTS OF DIXON... DAKOTA...THURSTON AND MONONA COUNTIES SHOULD BE ON THE LOOKOUT FOR ANY SEVERE WEATHER AND TAKE SHELTER IMMEDIATELY IF IT IS OBSSERVED. SHERLIN
Special weather statement, Jul 10, 3:44 AM CDT, 2 hours 7 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 335 AM CDT FRI JUL 10 1987 AT 330 AM CDT...NUMEROUS INTENSE THUNDERSTORMS CONTINUED OVER PARTS OF EXTREME NORTHEAST NEBRASKA WHILE NUMEROUS HEAVY THUNDERSTORMS CONTINUED OVER PARTS OF NORTHWEST IOWA. THE INTENSE STORMS WERE JUST SOUTH OF THE SOUTH DAKOTA-NEBRASKA BORDER WITH THE HEAVIEST STORMS LOCATED ON A LINE FROM 25 MILES SOUTH OF YANKTON TO 30 MILES SOUTHEAST OF PICKSTOWN. THESE STORMS ARE CAPABLE OF PRODUCING HAIL...STRONG GUSTY WINDS...VERY HEAVY RAIN AND DANGEROUS LIGHTNING. PERSONS IN THE LEWIS AND CLARK LAKE AREA SHOULD REMAIN ALERT FOR THREATENING WEATHER CONDITIONS AS THESE STORMS PAS.S JUST TO THE SOUTH. MOVEMENT WAS EAST AT 25 MILES AN HOUR. PFEIFFER
Special weather statement, Jul 10, 4:48 AM CDT, 1 hour 3 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 435 AM CDT FRI JUL 10 1987 AT 430 AM CDT...SCATTERED INTENSE THUNDERSTORMS CONTINUED OVER PARTS OF EXTREME SOUTHEAST SOUTH DAKOTA...NORTHEAST NEBRASKA AND INTO NORTHWEST IOWA. THESE STORMS WERE MOSTLY SOUTH OF THE SOUTH DAKOTA-NEBRASKA BORDER WITH THE HEAVIEST STORMS LOCATED 10 MILES EAST AND 10 MILES SOUTHWEST OF ELK POINT...ON LINE FROM 15 MILES SOUTH OF VERMILLION TO 30 MILES SOUTHWEST OF YANKTON AND 30 MILES SOUTH OF PICKSTOWN. THESE STORMS ARE CAPABLE OF PRODUCING HAIL...STRONG GUSTY WINDS...VERY HEAVY RAIN AND DANGEROUS LIGHTNING. PERSONS IN EXTREME SOUTHEAST SOUTH DAKOTA SHOULD REMAIN ALER@T FOR THREATENING WEATHER CONDITIONS. MOVEMENT WAS EAST AT 25 MILES AN HOUR. PFEIFFER
Special weather statement, Jul 10, 4:52 AM CDT, 59 minutes before
^DSMSPSSUX SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 450 AM CDT FRI JUL 10 1987 ...SEVERE THUNDERSTORM WATCH FOR SIOUXLAND AREA HAS BEEN CANCELLED... AT 445 AM CDT RADAR SHOWED AN AREA OF VERY STRONG THUNDERSTORMS MOVING INTO DIXON COUNTY NEBRASKA AND UNION COUNTY SOUTH DAKOTA. THE CLOSEST THUNDERSTORM TO SIOUX CITY...IN THIS AREA. IS ABOUT 20 MILES TO THE NORTHEAST. A SECOND AREA OF VERY STRONG THUNDERSTORMS IS MOVING ACROSS EASTERN THURSTON COUNTY...ABOUT 18 MILES SOUTHWEST OF SIOUX CITY...AND ALL OF MONONA COUNTY IOWA. BOTH OF THESE AREAS WERE MOVING EAST AT ABOUT 30 MILES AN HOUR AND PRODUCING DANGEROUS LIGHTNING...BRIEF HEAVY SHOWERS AND STRONG WIND GUSTS. STRONG THUNDERSTORMS WILL CONTINUE TO MOVE ACROSS THE SIOUXLAND AREA UNTIL ABOUT 700 AM CDT. SHERLIN
Special weather statement, Jul 10, 5:17 AM CDT, 34 minutes before
^DSMSPSSUX SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 515 AM CDT FRI JUL 10 1987 ...CONTINUOUS LIGHTNING ACROSS SIOUXLAND THIS MORNING... BETWEEN 515 AND 600 AM CDT...AN AREA OF VERY STRONG THUNDERSTORMS WILL MOVE ACROSS THE SIOUX CITY METROPOLITAN AREA. THESE THUNDERSTORMS WILL PRODUCE NEAR CONTINUOUS LIGHTNING...BRIEF HEAVY SHOWERS AND STRONG WIND GUSTS. THE THUNDERSTORMS WERE MOVING SOUTHEAST AT AROUND 30 MILES AN HOUR. RESIDENTS OF SIOUX CITY...AND THE SURROUNDING AREA...WHO LIVE IN LOW LYING AREAS SHOULD WATCH OUT FOR THE HEAVY SHOWERS AS THEY COULD QUICKLY FLOOD SOME LOW LYING AREAS. SHERLIN
Nearby
Severe Thunderstorm Warnings in Nebraska, 1987Every severe thunderstorm warning in 1987
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.