Alert archive / Minnesota / Frost Advisories in 2020
Frost Advisory 3, NWS Twin Cities, MN
NWS Twin Cities, MN issued this frost advisory at Sep 16, 2020, 3:43 AM CDT for 5 counties in Minnesota; Barron County, Polk County, Rusk County, Wisconsin. It took effect at Sep 17, 2020, 1:00 AM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Sep 16, 2020, 3:43 AM CDT (08:43 UTC)
- In effect from
- Sep 17, 2020, 1:00 AM CDT
- Expired
- Sep 17, 2020, 8:00 AM CDT
- In force
- 7 hr
- Issued by
- NWS Twin Cities, MN
Counties Chisago County, MN, Kanabec County, MN, Mille Lacs County, MN, Morrison County, MN, Todd County, MN, Barron County, WI, Polk County, WI, Rusk County, WI
The radar
The Minneapolis radar (KMPX), 106 km from the middle of the area, began a volume at 08:47 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 8.7 hours before the alert went out and 107 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
- 2073 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 237 m²/s²
- 0-3 km storm-relative helicity
- 305 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
546 WWUS73 KMPX 160843 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 343 AM CDT Wed Sep 16 2020 MNZ042>045-053-WIZ014>016-162045- /O.NEW.KMPX.FR.Y.0003.200917T0600Z-200917T1300Z/ Todd-Morrison-Mille Lacs-Kanabec-Chisago-Polk-Barron-Rusk- Including the cities of Long Prairie, Little Falls, Princeton, Mora, Center City, Osceola, Rice Lake, and Ladysmith 343 AM CDT Wed Sep 16 2020 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT THURSDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...In Wisconsin, Polk, Barron and Rusk Counties. In Minnesota, Todd, Morrison, Mille Lacs, Kanabec and Chisago Counties. * WHEN...From 1 AM to 8 AM CDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
4 follow-up statements
841 WWUS73 KMPX 161533 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 1033 AM CDT Wed Sep 16 2020 MNZ042>045-053-WIZ014>016-170000- /O.CON.KMPX.FR.Y.0003.200917T0600Z-200917T1300Z/ Todd-Morrison-Mille Lacs-Kanabec-Chisago-Polk-Barron-Rusk- Including the cities of Long Prairie, Little Falls, Princeton, Mora, Center City, Osceola, Rice Lake, and Ladysmith 1033 AM CDT Wed Sep 16 2020 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT THURSDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...In Wisconsin, Rusk, Barron and Polk Counties. In Minnesota, Chisago, Morrison, Todd, Kanabec and Mille Lacs Counties. * WHEN...From 1 AM to 8 AM CDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
163 WWUS73 KMPX 161956 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 256 PM CDT Wed Sep 16 2020 MNZ042>045-053-WIZ014>016-170600- /O.CON.KMPX.FR.Y.0003.200917T0600Z-200917T1300Z/ Todd-Morrison-Mille Lacs-Kanabec-Chisago-Polk-Barron-Rusk- Including the cities of Long Prairie, Little Falls, Princeton, Mora, Center City, Osceola, Rice Lake, and Ladysmith 256 PM CDT Wed Sep 16 2020 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT THURSDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...In Wisconsin, Rusk, Barron and Polk Counties. In Minnesota, Chisago, Morrison, Todd, Kanabec and Mille Lacs Counties. * WHEN...From 1 AM to 8 AM CDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
179 WWUS73 KMPX 170200 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 900 PM CDT Wed Sep 16 2020 MNZ042>045-053-WIZ014>016-171300- /O.CON.KMPX.FR.Y.0003.200917T0600Z-200917T1300Z/ Todd-Morrison-Mille Lacs-Kanabec-Chisago-Polk-Barron-Rusk- Including the cities of Long Prairie, Little Falls, Princeton, Mora, Center City, Osceola, Rice Lake, and Ladysmith 900 PM CDT Wed Sep 16 2020 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT THURSDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...In Wisconsin, Rusk, Barron and Polk Counties. In Minnesota, Chisago, Morrison, Todd, Kanabec and Mille Lacs Counties. * WHEN...From 1 AM to 8 AM CDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
045 WWUS73 KMPX 170811 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 311 AM CDT Thu Sep 17 2020 MNZ053-WIZ014>016-170915- /O.CAN.KMPX.FR.Y.0003.000000T0000Z-200917T1300Z/ Chisago-Polk-Barron-Rusk- Including the cities of Center City, Osceola, Rice Lake, and Ladysmith 311 AM CDT Thu Sep 17 2020 ...FROST ADVISORY IS CANCELLED... $$ MNZ042>045-171300- /O.CON.KMPX.FR.Y.0003.000000T0000Z-200917T1300Z/ Todd-Morrison-Mille Lacs-Kanabec- Including the cities of Long Prairie, Little Falls, Princeton, and Mora 311 AM CDT Thu Sep 17 2020 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...Morrison, Todd, Kanabec and Mille Lacs Counties. * WHEN...Until 8 AM CDT this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Borghoff
Nearby
Frost Advisories in Minnesota, 2020Frost Advisories in Wisconsin, 2020Every frost advisory in 2020
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; radar from the NEXRAD Level II archive.