Alert archive / Minnesota / Frost Advisories in 2011
Frost Advisory 1, NWS Twin Cities, MN
NWS Twin Cities, MN issued this frost advisory at May 15, 2011, 2:28 PM CDT for 42 counties in Minnesota; 9 counties in Wisconsin. It took effect at May 16, 2011, 3:00 AM CDT. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- May 15, 2011, 2:28 PM CDT (19:28 UTC)
- In effect from
- May 16, 2011, 3:00 AM CDT
- Expired
- May 16, 2011, 7:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS Twin Cities, MN
All 51 counties
Anoka County, MN, Benton County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Dakota County, MN, Douglas County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Nicollet County, MN, Pope County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Wright County, MN, Yellow Medicine County, MN, Barron County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Rusk County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 20 km from the middle of the area, began a volume at 19:32 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, 7.5 hours before the alert went out and 17 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
- 2545 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
318 WWUS73 KMPX 151928 NPWMPX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 228 PM CDT SUN MAY 15 2011 ...FROST POTENTIAL OVERNIGHT... .A FROST ADVISORY HAS BEEN ISSUED FOR PORTIONS OF CENTRAL AND SOUTHERN MINNESOTA...AS WELL AS PORTIONS OF WEST CENTRAL WISCONSIN FROM 3 AM TO 7 AM MONDAY MORNING. WINDS WILL BEGIN TO DECREASE THIS EVENING...AND WITH CLEAR SKIES...TEMPERATURES WILL BEGIN TO DROP INTO THE 30S AFTER MIDNIGHT. SOME OF THE MORE SHELTERED AREAS IN MINNESOTA AND WISCONSIN MAY DROP TO NEAR OR BELOW FREEZING BEFORE SUNRISE. ALTHOUGH A WIDESPREAD FROST IS NOT LIKELY IN THE INNER CITY OF MINNEAPOLIS AND ST PAUL...MAINLY DUE TO THE HEAT ISLAND EFFECT...PEOPLE SHOULD BE ON THE CAUTION SIDE AND COVER UP ANY VEGETATION. MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028- 160330- /O.NEW.KMPX.FR.Y.0001.110516T0800Z-110516T1200Z/ DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS- BENTON-SHERBURNE-ISANTI-CHISAGO-LAC QUI PARLE-SWIFT-CHIPPEWA- KANDIYOHI-MEEKER-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON- YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-CARVER-SCOTT-DAKOTA- REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE-WATONWAN-BLUE EARTH- WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-POLK-BARRON-RUSK- ST. CROIX-PIERCE-DUNN-PEPIN-EAU CLAIRE- 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...MONTICELLO...MINNEAPOLIS... BLAINE...ST. PAUL...STILLWATER...GRANITE FALLS...OLIVIA... HUTCHINSON...GAYLORD...CHASKA...SHAKOPEE...BURNSVILLE... REDWOOD FALLS...NEW ULM...ST. PETER...LE SUEUR...FARIBAULT... RED WING...ST. JAMES...MANKATO...WASECA...OWATONNA...FAIRMONT... BLUE EARTH...ALBERT LEA...AMERY...BALSAM LAKE...RICE LAKE... BARRON...LADYSMITH...HUDSON...NEW RICHMOND...RIVER FALLS... PRESCOTT...MENOMONIE...BOYCEVILLE...DURAND...PEPIN... CHIPPEWA FALLS...BLOOMER...EAU CLAIRE...ALTOONA 228 PM CDT SUN MAY 15 2011 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 7 AM CDT MONDAY... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 3 AM TO 7 AM CDT MONDAY. * TIMING...TEMPERATURES WILL FALL INTO THE 30S AFTER MIDNIGHT...AND BELOW 36 DEGREES FOR MOST OF SOUTHERN...CENTRAL...AS WELL AS WEST CENTRAL WISCONSIN AFTER 3 AM. * TEMPERATURE...FALLING TO NEAR OR SLIGHTLY ABOVE FREEZING BY MORNING. * IMPACTS...SENSITIVE OUTDOOR PLANTS MAY BE HARMED IF LEFT UNCOVERED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ JLT
2 follow-up statements
167 WWUS73 KMPX 151942 CCA NPWMPX URGENT - WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 242 PM CDT SUN MAY 15 2011 ...FROST POTENTIAL OVERNIGHT... .A FROST ADVISORY HAS BEEN ISSUED FOR PORTIONS OF CENTRAL AND SOUTHERN MINNESOTA...AS WELL AS PORTIONS OF WEST CENTRAL WISCONSIN FROM 3 AM TO 7 AM MONDAY MORNING. WINDS WILL BEGIN TO DECREASE THIS EVENING...AND WITH CLEAR SKIES...TEMPERATURES WILL BEGIN TO DROP INTO THE 30S AFTER MIDNIGHT. SOME OF THE MORE SHELTERED AREAS IN MINNESOTA AND WISCONSIN MAY DROP TO NEAR OR BELOW FREEZING BEFORE SUNRISE. ALTHOUGH A WIDESPREAD FROST IS NOT LIKELY IN THE INNER CITY OF MINNEAPOLIS AND ST PAUL...MAINLY DUE TO THE HEAT ISLAND EFFECT...PEOPLE SHOULD BE ON THE CAUTION SIDE AND COVER UP ANY VEGETATION. MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028- 160400- /O.COR.KMPX.FR.Y.0001.110516T0800Z-110516T1200Z/ DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS- BENTON-SHERBURNE-ISANTI-CHISAGO-LAC QUI PARLE-SWIFT-CHIPPEWA- KANDIYOHI-MEEKER-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON- YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-CARVER-SCOTT-DAKOTA- REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE-WATONWAN-BLUE EARTH- WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-POLK-BARRON-RUSK- ST. CROIX-PIERCE-DUNN-PEPIN-EAU CLAIRE- 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...MONTICELLO...MINNEAPOLIS... BLAINE...ST. PAUL...STILLWATER...GRANITE FALLS...OLIVIA... HUTCHINSON...GAYLORD...CHASKA...SHAKOPEE...BURNSVILLE... REDWOOD FALLS...NEW ULM...ST. PETER...LE SUEUR...FARIBAULT... RED WING...ST. JAMES...MANKATO...WASECA...OWATONNA...FAIRMONT... BLUE EARTH...ALBERT LEA...AMERY...BALSAM LAKE...RICE LAKE... BARRON...LADYSMITH...HUDSON...NEW RICHMOND...RIVER FALLS... PRESCOTT...MENOMONIE...BOYCEVILLE...DURAND...PEPIN... CHIPPEWA FALLS...BLOOMER...EAU CLAIRE...ALTOONA 242 PM CDT SUN MAY 15 2011 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 7 AM CDT MONDAY... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 3 AM TO 7 AM CDT MONDAY. * TIMING...TEMPERATURES WILL FALL INTO THE 30S AFTER MIDNIGHT...AND BELOW 36 DEGREES FOR MOST OF SOUTHERN...CENTRAL MINNESOTA...AS WELL AS WEST CENTRAL WISCONSIN AFTER 3 AM. * TEMPERATURE...FALLING TO NEAR OR SLIGHTLY ABOVE FREEZING BY MORNING. * IMPACTS...SENSITIVE OUTDOOR PLANTS MAY BE HARMED IF LEFT UNCOVERED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ JLT
339 WWUS73 KMPX 160444 NPWMPX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1144 PM CDT SUN MAY 15 2011 ...FROST POTENTIAL OVERNIGHT... .A FROST ADVISORY REMAINS IN EFFECT LATE TONIGHT FOR PORTIONS OF CENTRAL AND SOUTHERN MINNESOTA...AS WELL AS PORTIONS OF WEST CENTRAL WISCONSIN. WINDS HAVE DECREASED ACROSS THE AREA... AND WILL BE NEARLY CALM IN PORTIONS OF WEST CENTRAL...SOUTHWEST... CENTRAL AND EAST CENTRAL MINNESOTA...AND ALSO IN PORTIONS OF WEST CENTRAL WISCONSIN. WITH CLEAR SKIES...TEMPERATURES WILL DROP INTO THE 30S LATE TONIGHT. SOME OF THE MORE SHELTERED AREAS IN MINNESOTA AND WISCONSIN MAY DROP TO NEAR OR BELOW FREEZING BEFORE SUNRISE. FOR SOUTH CENTRAL MINNESOTA TO THE TWIN CITIES AND EAU CLAIRE... TEMPERATURES MAY STAY IN THE UPPER 30S TONIGHT...DUE TO WINDS REMAINING AROUND 5 OR 8 MPH. ALTHOUGH A WIDESPREAD FROST IS NOT LIKELY IN THESE AREAS... PEOPLE SHOULD BE ON THE CAUTIOUS SIDE AND COVER UP ANY VEGETATION. MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028- 161200- /O.CON.KMPX.FR.Y.0001.110516T0800Z-110516T1200Z/ DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS- BENTON-SHERBURNE-ISANTI-CHISAGO-LAC QUI PARLE-SWIFT-CHIPPEWA- KANDIYOHI-MEEKER-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON- YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-CARVER-SCOTT-DAKOTA- REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE-WATONWAN-BLUE EARTH- WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-POLK-BARRON-RUSK- ST. CROIX-PIERCE-DUNN-PEPIN-EAU CLAIRE- 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...MONTICELLO...MINNEAPOLIS... BLAINE...ST. PAUL...STILLWATER...GRANITE FALLS...OLIVIA... HUTCHINSON...GAYLORD...CHASKA...SHAKOPEE...BURNSVILLE... REDWOOD FALLS...NEW ULM...ST. PETER...LE SUEUR...FARIBAULT... RED WING...ST. JAMES...MANKATO...WASECA...OWATONNA...FAIRMONT... BLUE EARTH...ALBERT LEA...AMERY...BALSAM LAKE...RICE LAKE... BARRON...LADYSMITH...HUDSON...NEW RICHMOND...RIVER FALLS... PRESCOTT...MENOMONIE...BOYCEVILLE...DURAND...PEPIN... CHIPPEWA FALLS...BLOOMER...EAU CLAIRE...ALTOONA 1144 PM CDT SUN MAY 15 2011 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 7 AM CDT MONDAY... A FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 7 AM CDT MONDAY. * TIMING...TEMPERATURES WILL FALL INTO THE 30S LATE TONIGHT... AND BELOW 36 DEGREES FOR MOST OF CENTRAL MINNESOTA... AS WELL AS PORTIONS OF SOUTHWEST MINNESOTA AND WEST CENTRAL WISCONSIN. * TEMPERATURE...FALLING TO NEAR OR SLIGHTLY ABOVE FREEZING BY MORNING FROM APPLETON MINNESOTA TO ST CLOUD AND LADYSMITH WISCONSIN. UPPER 30S ARE EXPECTED FOR SOUTH CENTRAL MINNESOTA TO THE TWIN CITIES SUBURBS... TO EAU CLAIRE. * IMPACTS...SENSITIVE OUTDOOR PLANTS MAY BE HARMED IF LEFT UNCOVERED. 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, 2011Frost Advisories in Wisconsin, 2011Every frost advisory in 2011
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.