Alert archive / Minnesota / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 123, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 26, 1986, 5:15 PM CDT for Chippewa County, Minnesota. It was in force for 60 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 26, 1986, 5:15 PM CDT (22:15 UTC)
- Expired
- Jul 26, 1986, 6:15 PM CDT
- In force
- 60 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Chippewa County, MN
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 26, 6:00 PM CDT | Hail 1.75 | Chippewa, MN | |
| Jul 26, 6:15 PM CDT | Tornado F1 | Chippewa, MN |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 10.3 hours before the alert went out and 156 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
- 970 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 93 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 KMSP 262215 SVRSTC MNC023-262315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SAINT CLOUD MN ISSUED BY MINNEAPOLIS MN 515 PM CDT SAT JUL 26 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 615 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF WEST CENTRAL MINNESOTA...CHIPPEWA AT 510 PM CDT A SEVERE THUNDERSTORM WAS LOCATED IN WESTERN CHIPPEWA COUNTY IN SOUTHWEST MINNESOTA...ABOUT 105 MILES WEST OF THE TWIN CITIES. THE SEVERE THUNDERTORM WAS MOVING TOWARD THE NORTHEAST AT 10 TO 15 MPH. EXPECT LARGE HAIL..DAMAGING WINDS..TORRENTIAL DOWNPOURS AND DEADLY LIGHTNING STRIKES WITH THIS SEVERE THUNDERSTORM. REMEMBER SEVERE THUNDERSTORMS PRODUCE STRONG DAMAGING WINDS..LARGE HAIL AND FREQUENT LIGHTNING STRIKES. ALSO SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE WARNING..SO BE ON THE LOOKOUT AND BE PREPARED TO MOV5E TO A PLACE OF SAFETY IF ONE IS SPOTTED. NAME
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 6:15 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa | 60 min |
| Jul 26, 6:45 PM CDT | Tornado Warning | MPX | Chippewa | 30 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.