Alert archive / Minnesota / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 22, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 28, 1987, 5:02 PM CDT for Anoka County, Hennepin County, Minnesota. It was in force for 38 min. 3 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
- Jun 28, 1987, 5:02 PM CDT (22:02 UTC)
- Expired
- Jun 28, 1987, 5:40 PM CDT
- In force
- 38 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Anoka County, MN, Hennepin 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 |
|---|---|---|---|
| Jun 28, 5:07 PM CDT | Thunderstorm Wind 0 | Anoka, MN | |
| Jun 28, 5:10 PM CDT | Thunderstorm Wind 0 | Hennepin, MN | |
| Jun 28, 5:29 PM CDT | Hail 1.5 | Hennepin, 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, 10.0 hours before the alert went out and 37 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
- 139 J/kg
- Mixed-layer CIN
- -151 J/kg
- Mixed-layer LCL
- 1385 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 126 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 282202 SVRMSP MNC053-003-282240- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MINNEAPOLIS MN 502 PM CDT SUN JUN 28 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 540 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF EAST CENTRAL MINNESOTA... NORTHERN HENNEPIN AND WESTERN ANOKA AT 450 PM RADAR INDICATED TWO SEVERE THUINDERSTORMS..ONE NEAR ELK RIVER OR 30 MILES NORTHWEST OF DOWNTOWN MINNEAPOLIS..ANOTHER NEAR MONTROSE ABOUT 35 MILES WEST OF DOWNTOWN MINNEAPOLIS. GREATER THAN 50 MILE AN HOUR WINDS AND PEA SIZED HAIL WERE REPORTED FROM BUFFALO MINNESOTA. THESE STORMS WERE MOVING EAST AT ABOUT 35 MILES AN HOUR AND SHOULD BE MOVING TOWARD THE CITIES OF ANOKA..ROCKFORD..AND MOUND INCLUDING LAKE MINNETONKA. REMEMBER SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH..DESTRUCTIVE HAIL..DEADLY LIGHTNING AND VERY HEAVY RAIN. 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 MOVE TO A PLACE OF SAFETY IF ONE IS SPOTTED. TND
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, Jun 28, 3:23 PM CDT, 1 hour 39 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST. CLOUD MN 320 PM CDT SUN JUN 28 1987 ...SEVERE THUNDERSTORM WATCH UNTIL 900 PM CDT FOR PORTIONS OF SOUTHERN MINNESOTA... AT 310 PM CDT STRONG THUNDERSTORMS WERE LOCATED IN LAC QUI PARLE AND YELLOW MEDICINE AND CHIPPEWA COUNTIES OF SOUTHWEST MINNESOTA. PEA SIZE HAIL AND BRIEF HEAVY RAIN WAS REPORTED AT DAWSON IN LAC QUI PARLE COUNTY...50 MILES SOUTHWEST OF WILLMAR...AT 300 PM CDT BY THE SHERIFF DEPARTMENT OF CHIPPEWA COUNTY. RADAR SHOWED THESE STORMS MOVING EAST AT 30 MILES AN HOUR. BE PREPARED TO MOVE TO A PLACE OF SAFETY IF SEVERE WEATHER MOVES INTO YOUR AREA AND LISTEN FOR FURTHER STATEMENTS OR WARNINGS. FRASER
Special weather statement, Jun 28, 4:03 PM CDT, 59 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST. CLOUD MN 400 PM CDT SUN JUN 28 1987 ...SEVERE THUNDERSTORM WATCH UNTIL 900 PM CDT FOR PORTIONS OF SOUTHERN MINNESOTA... AT 355 PM CDT STRONG THUNDERSTORMS WERE LOCATED IN SOUTHERN CHIPPEWA AND SOUTHERN KANDIYOHI COUNTIES OF SOUTHWEST MINNESOTA. AT 328 PM CDT PEA SIZE HAIL AND HEAVY RAIN WAS REPORTED 8 MILES NORTH 0F CLARKFIELD IN YELLOW MEDICINE COUNTY...40 MILES SOUTHWEST OF WILLMAR. PEA SIZE HAIL ALSO REPORTED AT PRINSBURG IN KANDIYOHI COUNTY...13 MILES SOUTHWEST OF WILLMAR...AT 333 PM CDT. RADAR SHOWED THESE STORMS MOVING EAST AT 30 MILES AN HOUR. BE PREPARED TO MOVE TO A PLACE OF SAFETY IF SEVERE WEATHER MOVES INTO YOUR AREA AND LISTEN FOR FURTHER STATEMENTS OR WARNINGS. RUBIN/FRASER
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 4:25 PM CDT | Tornado Warning | MPX | Lac qui Parle, Yellow Medicine | 35 min |
| Jun 28, 5:12 PM CDT | Tornado Warning | MPX | Anoka, Hennepin, Ramsey | 28 min |
| Jun 28, 5:43 PM CDT | Tornado Warning | MPX | Hennepin | 27 min |
| Jun 28, 5:43 PM CDT | Tornado Warning | MPX | Anoka, Dakota, Ramsey, Washington | 27 min |
| Jun 28, 6:01 PM CDT | Severe Thunderstorm Warning | MPX | Scott | 44 min |
| Jun 28, 6:18 PM CDT | Severe Thunderstorm Warning | MPX | Dakota | 57 min |
| Jun 28, 6:34 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue, Wabasha | 56 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.