Alert archive / Minnesota / Severe Thunderstorm Warnings in 1988
Severe Thunderstorm Warning 40, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 2, 1988, 3:30 PM CDT for Sherburne County, Minnesota. It was in force for 30 min.
The area
The counties it named.
The facts
- Issued
- Aug 2, 1988, 3:30 PM CDT (20:30 UTC)
- Expired
- Aug 2, 1988, 4:00 PM CDT
- In force
- 30 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Sherburne County, MN
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
Minneapolis, MN (KSTC), launched 12:00Z, 8.5 hours before the alert went out and 67 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
- 328 J/kg
- Mixed-layer CIN
- -209 J/kg
- Mixed-layer LCL
- 1281 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- -36 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSTC 022030
SVRSTC
MNC141-022130-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST CLOUD MN
330 PM CDT TUE AUG 2 1988
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 430 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF
CENTRAL MINNESOTA:
SHERBURNE
INCLUDING THE CITIES OF
BIG LAKE...BECKER..CLEAR LAKE...ELK RIVER AND ZIMMERMAN.
AT 325 PM CDT RADAR WAS SHOWING A SEVERE THUNDERSTORM BETWEEN BUFFALO
AND MONTICELLO IN WRIGHT COUNTY...30 MILES NORTHWEST OF MINNEAPOLIS.
THIS SERVERE THUNDERSTORM WAS MOVING NORTHEAST AT 30 MPH.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAM_AGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY
LIGHTNING. BOATERS SHOULD MOVE OFF LAKES TO NEARBY SHELTER. PEOPLE
OUTSIDE SHOULD MOVE INSIDE STRONG BUILDINGS BUT STAY AWAY FROM
WINDOWS.
NISTLERWhat 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 2, 3:01 PM CDT, 29 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 250 PM CDT TUE AUG 2 1988 ...THUNDERSTORMS WITH HEAVY RAIN AND GUSTY WINDS DEVELOPNG WEST OF THE TWIN CITIES... AT 230 THIS AFTERNOON THUNDERSTORMS WERE INCREASING RAPIDLY WEST OF THE TWIN CITIES METROPOLITATN AREA FROM HUTCHINSON SOUTHWEST THROUGH REDWOOD FALLS AND WORTHINGTON IN SOUTHWEST MINNESOTA. THESE THUNDERSTORMS PRODUCED VERY HEAVY RAIN AND GUSTY WINDS JUST NORTHWEST OF HUTCHINSON ABOUT 50 MILES WEST OF DOWNTOWN MINNEAPOLIS. THESE THUNDERSTORMS ARE MOVING NORTHEAST AND ARE CECPECTED TO SPREAD THROUGH CARVER AND WRIGHT COUNTIES BETWEEN 30 AND 400 PM THEN EVENTUALLY OVER HENNEPIN AND THE REST OF THE METROPOLITAN AREA DURING THE REMAINDER OF THIS AFERNOON. THESE THUNDERSTORMS MAY PRODUCE DOWNPOURS..GUSTY WINDS AND HAIL. THOSE ON AREA LAKES ARE URGED TO ALLOW PLENTY OF TIME TO REACH A PLACE OF SAFETY. IT THREATENING WEATHERF APPRAOCHED BE PREPARED TO SEEK SHELTER. WJH
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 12:25 AM CDT | Severe Thunderstorm Warning | MPX | Todd | 50 min |
| Aug 2, 12:43 AM CDT | Severe Thunderstorm Warning | MPX | Morrison | 47 min |
| Aug 2, 3:08 PM CDT | Tornado Warning | MPX | Carver, Hennepin | 52 min |
| Aug 2, 3:32 PM CDT | Tornado Warning | MPX | Anoka, Hennepin | 28 min |
| Aug 2, 3:49 PM CDT | Tornado Warning | MPX | Anoka, Ramsey, Washington | 41 min |
| Aug 2, 4:30 PM CDT | Severe Thunderstorm Warning | MPX | Washington | 15 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1988Every severe thunderstorm warning in 1988
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.