Alert archive / Minnesota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 105, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 26, 1990, 12:36 AM CDT for Morrison County, Todd County, Minnesota. It was in force for 54 min.
The area
The counties it named.
The facts
- Issued
- Aug 26, 1990, 12:36 AM CDT (05:36 UTC)
- Expired
- Aug 26, 1990, 1:30 AM CDT
- In force
- 54 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Morrison County, MN, Todd 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 00:00Z, 5.6 hours before the alert went out and 153 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
- 3299 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 1021 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.2
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 25, 9:22 PM CDT, 3 hours 14 minutes before
MNZ011-260300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 923 PM CDT SAT AUG 26 1990 ...THUNDERSTORM WITH HEAVY RAINS MOVING ACROSS CENTRAL MINNESOTA... AT 920 PM CDT RADAR LOCATED AN INTENSE THUNDERSTORM WITH HEAVY RAIN AND SMALL HAIL ABOUT 4 MILES NORTH OF CUSHING MINNESOTA WHICH IS 48 MILES NORTHWEST OF ST CLOUD. THE THUNDERSTORM WAS MOVING EAST AT 30 MPH AND SHOULD MOVE THROUGH THE TOWN OF FORT RIPLEY AROUND 945 PM CDT. VC
Special weather statement, Aug 25, 10:37 PM CDT, 1 hour 59 minutes before
MNZ011-260410- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 1035 PM CDT SAT AUG 26 1990 ...THUNDERSTORM WITH HEAVY RAINS MOVING ACROSS CENTRAL MINNESOTA... AT 1030 PM CDT RADAR INDICATED AN INTENSE THUNDERSTORM WITH HEAVY RAIN AND SMALL HAIL. THE STORM WAS LOCATED ABOUT 3 MILES EAST OF LITTLE FALLS MINNESOTA...ABOUT 30 MILES NORTH OF ST CLOUD. THE THUNDERSTORM WAS MOVING EAST AT 30 MPH AND SHOULD MOVE THROUGH THE TOWN OF PIERZ AROUND 1050 PM CDT. PEOPLE IN THE PATH OF THIS STORM SHOULD MOVE INDOORS AND STAY AWAY FROM WINDOWS. DEADLY LIGHTNING...BRIEF GUSTY WINDS UP TO 40 MPH AND SMALL HAIL ARE LIKELY TO OCCUR WITH THIS STORM. VC
Special weather statement, Aug 25, 11:27 PM CDT, 1 hour 9 minutes before
MNZ011-260500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 1125 PM CDT SAT AUG 26 1990 ...A LINE OF THUNDERSTORMS WERE MOVING ACROSS WEST-CENTRAL MINNESOTA... AT 1020 PM CDT RADAR INDICATED A LINE OF THUNDERSTORMS WITH HEAVY RAIN...SMALL HAIL AND GUSTY WIND EXTENDING FROM ALEXANDRIA MINNESOTA SOUTH TO GRANITE FALLS ALONG THE MINNESOTA RIVER. THE THUNDERSTORMS WERE MOVING EAST AT 30 TO 35 MPH. PEOPLE IN 'THE PATH OF THESE STORMS SHOULD MOVE INDOORS AND STAY AWAY FROM WINDOWS. DEADLY LIGHTNING...BRIEF GUSTY WINDS UP TO 50 MPH AND SMALL HAIL ARE LIKELY TO OCCUR WITH THESE STORMS. VC
Special weather statement, Aug 25, 11:28 PM CDT, 1 hour 8 minutes before
MNZ011-260500- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE ST CLOUD MN 1125 PM CDT SAT AUG 26 1990 ...A LINE OF THUNDERSTORMS WERE MOVING ACROSS WEST-CENTRAL MINNESOTA... AT 1120 PM CDT RADAR INDICATED A LINE OF THUNDERSTORMS WITH HEAVY RAIN...SMALL HAIL AND GUSTY WIND EXTENDING FROM ALEXANDRIA MINNESOTA SOUTH TO GRANITE FALLS ALONG THE MINNESOTA RIVER. THE THUNDERSTORMS WERE MOVING EAST AT 30 TO 35 MPH. PEOPLE IN TH(E PATH OF THESE STORMS SHOULD MOVE INDOORS AND STAY AWAY FROM WINDOWS. DEADLY LIGHTNING...BRIEF GUSTY WINDS UP TO 50 MPH AND SMALL HAIL ARE LIKELY TO OCCUR WITH THESE STORMS. VC
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 8:05 PM CDT | Severe Thunderstorm Warning | MPX | Todd | 55 min |
| Aug 25, 11:07 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 53 min |
| Aug 25, 11:52 PM CDT | Severe Thunderstorm Warning | MPX | Pope | 38 min |
| Aug 26, 12:20 AM CDT | Severe Thunderstorm Warning | MPX | Stearns | 55 min |
| Aug 26, 12:52 AM CDT | Severe Thunderstorm Warning | MPX | Benton | 38 min |
| Aug 26, 1:11 AM CDT | Severe Thunderstorm Warning | MPX | Mille Lacs, Sherburne | 64 min |
| Aug 26, 3:06 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Hennepin | 54 min |
| Aug 26, 5:42 AM CDT | Severe Thunderstorm Warning | MPX | Olmsted, Wabasha | 63 min |
| Aug 26, 6:22 AM CDT | Severe Thunderstorm Warning | MPX | Winona | 53 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1990Every severe thunderstorm warning in 1990
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.