Alert archive / Minnesota / Frost Advisories in 2014
Frost Advisory 4, NWS Twin Cities, MN
NWS Twin Cities, MN issued this frost advisory at Sep 11, 2014, 9:37 PM CDT for 8 counties in Minnesota; Barron County, Polk County, Rusk County, Wisconsin. It took effect at Sep 12, 2014, 3:00 AM CDT. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Sep 11, 2014, 9:37 PM CDT (02:37 UTC)
- In effect from
- Sep 12, 2014, 3:00 AM CDT
- Expired
- Sep 12, 2014, 6:22 AM CDT
- In force
- 3 hr
- Issued by
- NWS Twin Cities, MN
Counties Benton County, MN, Chisago County, MN, Douglas County, MN, Isanti 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), 99 km from the middle of the area, began a volume at 02:37 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, 2.6 hours before the alert went out and 99 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
- 6 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 1321 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- -71 m²/s²
- 0-3 km storm-relative helicity
- 13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
529 WWUS73 KMPX 120237 NPWMPX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 937 PM CDT THU SEP 11 2014 ...AREAS OF FROST EARLY FRIDAY MORNING OVER PORTIONS OF CENTRAL MINNESOTA AND NORTHWESTERN WISCONSIN... .AREAS OF FROST ARE EXPECTED TO DEVELOP DURING THE EARLY MORNING HOURS ON FRIDAY AS TEMPERATURES DROP INTO THE MIDDLE 30S AND WINDS BECOME NEARLY CALM. AREAS OF FROST CAN BE EXPECTED ALONG AND NORTH OF A LINE FROM ALEXANDRIA TO LITTLE FALLS TO CAMBRIDGE TO CENTER CITY IN MINNESOTA...AND FROM BALSAM LAKE TO LADYSMITH IN WISCONSIN. SENSITIVE OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. MNZ041>045-050-052-053-WIZ014>016-121300- /O.NEW.KMPX.FR.Y.0004.140912T0800Z-140912T1300Z/ DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-BENTON-ISANTI-CHISAGO- POLK-BARRON-RUSK- INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE... LITTLE FALLS...PRINCETON...MORA...FOLEY...CAMBRIDGE... CENTER CITY...AMERY...BALSAM LAKE...RICE LAKE...BARRON... LADYSMITH 937 PM CDT THU SEP 11 2014 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM CDT FRIDAY... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 3 AM TO 8 AM CDT FRIDAY. * TEMPERATURE...LOWS 34 TO 38. * IMPACTS...SENSITIVE OUTDOOR PLANTS AND VEGETATION MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$
2 follow-up statements
338 WWUS73 KMPX 120836 NPWMPX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 336 AM CDT FRI SEP 12 2014 ...PATCHY FROST EARLY OVER PORTIONS OF CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN... .PATCHY FROST IS LIKELY IN PORTIONS OF CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN THROUGH 8 AM. HOWEVER WIDESPREAD FROST IS NOT EXPECTED DUE TO INCREASING CLOUD COVER AND TEMPERATURES HOLDING IN THE MID TO UPPER 30S. THE MAIN AREA OF FROST WILL BE ALONG AND NORTH OF A LINE FROM ALEXANDRIA TO LITTLE FALLS TO CAMBRIDGE TO CENTER CITY IN MINNESOTA...AND FROM BALSAM LAKE TO LADYSMITH IN WISCONSIN. SENSITIVE OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. MNZ041>045-050-052-053-WIZ014>016-121300- /O.CON.KMPX.FR.Y.0004.000000T0000Z-140912T1300Z/ DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-BENTON-ISANTI-CHISAGO- POLK-BARRON-RUSK- INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE... LITTLE FALLS...PRINCETON...MORA...FOLEY...CAMBRIDGE... CENTER CITY...AMERY...BALSAM LAKE...RICE LAKE...BARRON... LADYSMITH 336 AM CDT FRI SEP 12 2014 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... A FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING. * TEMPERATURE...LOWS 34 TO 38. * IMPACTS...SENSITIVE OUTDOOR PLANTS AND VEGETATION MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ JLT
860 WWUS73 KMPX 121122 NPWMPX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 622 AM CDT FRI SEP 12 2014 ...FROST ADVISORY CANCELLED... .AN INCREASE IN CLOUDS EARLY THIS MORNING WILL ALLOW TEMPERATURES TO REMAIN IN THE UPPER 30S OR GREATER. THEREFORE FROST IS NO LONGER A CONCERN AND THE ADVISORY HAS BEEN CANCELLED. MNZ041>045-050-052-053-WIZ014>016-121230- /O.CAN.KMPX.FR.Y.0004.000000T0000Z-140912T1300Z/ DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-BENTON-ISANTI-CHISAGO- POLK-BARRON-RUSK- INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE... LITTLE FALLS...PRINCETON...MORA...FOLEY...CAMBRIDGE... CENTER CITY...AMERY...BALSAM LAKE...RICE LAKE...BARRON... LADYSMITH 622 AM CDT FRI SEP 12 2014 ...FROST ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS CANCELLED THE FROST ADVISORY. AN INCREASE IN CLOUDS EARLY THIS MORNING WILL ALLOW TEMPERATURES TO REMAIN IN THE UPPER 30S OR GREATER. THEREFORE FROST IS NO LONGER A CONCERN AND THE ADVISORY HAS BEEN CANCELLED. $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 12, 2:08 PM CDT | Frost Advisory | MPX | Anoka, Benton, Blue Earth, Brown, Carver, Chippewa and 36 more | 18 hr |
Nearby
Frost Advisories in Minnesota, 2014Frost Advisories in Wisconsin, 2014Every frost advisory in 2014
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.