Alert archive / Minnesota / Frost Advisories in 2012
Frost Advisory 2, NWS Twin Cities, MN
NWS Twin Cities, MN issued this frost advisory at Sep 17, 2012, 2:16 PM CDT for 23 counties in Minnesota; Barron County, Polk County, Wisconsin. It took effect at Sep 18, 2012, 12:00 AM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Sep 17, 2012, 2:16 PM CDT (19:16 UTC)
- In effect from
- Sep 18, 2012, 12:00 AM CDT
- Expired
- Sep 18, 2012, 7:00 AM CDT
- In force
- 7 hr
- Issued by
- NWS Twin Cities, MN
All 25 counties
Benton County, MN, Brown County, MN, Chippewa County, MN, Chisago County, MN, Douglas County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Martin County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Pope County, MN, Redwood County, MN, Renville County, MN, Sherburne County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Watonwan County, MN, Yellow Medicine County, MN, Barron County, WI, Polk County, WI
The radar
The Minneapolis radar (KMPX), 86 km from the middle of the area, began a volume at 19:19 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 12:00Z, 7.3 hours before the alert went out and 84 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
- 722 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- -82 m²/s²
- 0-3 km storm-relative helicity
- -37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
528 WWUS73 KMPX 171916 NPWMPX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 216 PM CDT MON SEP 17 2012 ...FROST FOR PARTS OF THE REGION TONIGHT... .A FROST ADVISORY HAS BEEN ISSUED FOR TONIGHT FOR MUCH OF CENTRAL...WEST CENTRAL AND SOUTHWEST MINNESOTA...AS WELL AS FOR A SMALL PART OF WEST CENTRAL WISCONSIN. THE FROST ADVISORY IS GENERALLY WEST OF A LINE FROM FAIRMONT TO ST CLOUD AND NORTH OF A LINE FROM ST CLOUD TO RICE LAKE. HIGH PRESSURE WILL BUILD OVER THE REGION TONIGHT WITH SKIES CLEARING ACROSS THE ADVISORY AREA ALONG WITH DIMINISHING WIND. WIDESPREAD FROST IS EXPECTED BY DAYBREAK TUESDAY WITH LOWS IN THE LOWER 30S. MNZ041>045-047>058-064-065-073-074-082-091-WIZ014-015-180330- /O.NEW.KMPX.FR.Y.0002.120918T0500Z-120918T1200Z/ DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS- BENTON-SHERBURNE-ISANTI-CHISAGO-LAC QUI PARLE-SWIFT-CHIPPEWA- KANDIYOHI-MEEKER-YELLOW MEDICINE-RENVILLE-REDWOOD-BROWN-WATONWAN- MARTIN-POLK-BARRON- INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE... LITTLE FALLS...PRINCETON...MORA...MORRIS...GLENWOOD...ST. CLOUD... FOLEY...ELK RIVER...CAMBRIDGE...CENTER CITY...MADISON...BENSON... MONTEVIDEO...WILLMAR...LITCHFIELD...GRANITE FALLS...OLIVIA... REDWOOD FALLS...NEW ULM...ST. JAMES...FAIRMONT...AMERY... BALSAM LAKE...RICE LAKE...BARRON 216 PM CDT MON SEP 17 2012 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM CDT TUESDAY... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM CDT TUESDAY. * TIMING...LATE TONIGHT AND EARLY TUESDAY MORNING. * TEMPERATURE...LOWS IN THE LOWER 30S. * IMPACTS...SENSITIVE VEGETATION MAY BE DAMAGED IF LEFT UNCOVERED TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ RAH
1 follow-up statement
846 WWUS73 KMPX 180441 NPWMPX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1141 PM CDT MON SEP 17 2012 ...FROST FOR PARTS OF THE REGION TONIGHT... .A FROST ADVISORY REMAINS IN EFFECT FOR TONIGHT FOR MUCH OF CENTRAL...WEST CENTRAL AND SOUTHWEST MINNESOTA...AS WELL AS FOR A SMALL PART OF WEST CENTRAL WISCONSIN. THE FROST ADVISORY IS GENERALLY WEST OF A LINE FROM FAIRMONT TO ST CLOUD AND NORTH OF A LINE FROM ST CLOUD TO RICE LAKE. HIGH PRESSURE WILL BUILD OVER THE REGION TONIGHT WITH SKIES CLEARING ACROSS THE ADVISORY AREA ALONG WITH DIMINISHING WIND. WIDESPREAD FROST IS EXPECTED BY DAYBREAK TUESDAY WITH LOWS IN THE LOWER 30S. MNZ041>045-047>058-064-065-073-074-082-091-WIZ014-015-181200- /O.CON.KMPX.FR.Y.0002.120918T0500Z-120918T1200Z/ DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS- BENTON-SHERBURNE-ISANTI-CHISAGO-LAC QUI PARLE-SWIFT-CHIPPEWA- KANDIYOHI-MEEKER-YELLOW MEDICINE-RENVILLE-REDWOOD-BROWN-WATONWAN- MARTIN-POLK-BARRON- INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE... LITTLE FALLS...PRINCETON...MORA...MORRIS...GLENWOOD...ST. CLOUD... FOLEY...ELK RIVER...CAMBRIDGE...CENTER CITY...MADISON...BENSON... MONTEVIDEO...WILLMAR...LITCHFIELD...GRANITE FALLS...OLIVIA... REDWOOD FALLS...NEW ULM...ST. JAMES...FAIRMONT...AMERY... BALSAM LAKE...RICE LAKE...BARRON 1141 PM CDT MON SEP 17 2012 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT TUESDAY... * TIMING...LATE TONIGHT AND EARLY TUESDAY MORNING. * TEMPERATURE...LOWS IN THE LOWER 30S. * IMPACTS...SENSITIVE VEGETATION MAY BE DAMAGED IF LEFT UNCOVERED TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$
Nearby
Frost Advisories in Minnesota, 2012Frost Advisories in Wisconsin, 2012Every frost advisory in 2012
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.