Alert archive / Minnesota / Red Flag Warnings in 2020
Red Flag Warning 1, NWS Twin Cities, MN
NWS Twin Cities, MN issued this red flag warning at Apr 20, 2020, 3:49 AM CDT for 42 counties in Minnesota. It took effect at Apr 20, 2020, 8:00 AM CDT. It was in force for 10 hr. 33 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 20, 2020, 3:49 AM CDT (08:49 UTC)
- In effect from
- Apr 20, 2020, 8:00 AM CDT
- Expired
- Apr 20, 2020, 6:00 PM CDT
- In force
- 10 hr
- Issued by
- NWS Twin Cities, MN
All 42 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
The radar
The Minneapolis radar (KMPX), 50 km from the middle of the area, began a volume at 08:52 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 20, 2:33 PM CDT | NON-TSTM WND GST 43 | 3 Nnw Owatonna, MN | AWOS STATION KOWA OWATONNA AP. |
| Apr 20, 2:35 PM CDT | NON-TSTM WND GST 44 | 3 Wsw Waseca, MN | AWOS STATION KACQ WASECA AP. |
| Apr 20, 2:36 PM CDT | NON-TSTM WND GST 44 | 1 Ese Round Prairie, MN | AWOS STATION K14Y LONG PRAIRIE AP. |
| Apr 20, 2:40 PM CDT | NON-TSTM WND GST 52 | 2 Sse Waseca, MN | MESONET STATION MN039 WASECA 1SSE. |
| Apr 20, 2:50 PM CDT | NON-TSTM WND GST 49 | 1 N Rice, MN | MESONET STATION MN064 RICE 1NNW. |
| Apr 20, 3:01 PM CDT | TSTM WND GST 44 | 6 E St. Cloud, MN | ASOS STATION KSTC ST. CLOUD AP. |
| Apr 20, 3:01 PM CDT | NON-TSTM WND GST 44 | 6 E St. Cloud, MN | ASOS STATION KSTC ST. CLOUD AP. |
| Apr 20, 3:04 PM CDT | NON-TSTM WND GST 48 | 3 Ese Fairmont, MN | AWOS STATION KFRM FAIRMONT AP. |
| Apr 20, 3:07 PM CDT | NON-TSTM WND GST 46 | 2 Sw Alexandria, MN | ASOS STATION KAXN ALEXANDRIA MN ASOS. |
| Apr 20, 3:08 PM CDT | NON-TSTM WND GST 44 | 2 W Benson, MN | AWOS STATION KBBB BENSON AP. |
| Apr 20, 3:20 PM CDT | TSTM WND GST 44 | 2 Se Clearwater, MN | MESONET STATION MN017 CLEARWATER 1SE. |
| Apr 20, 3:20 PM CDT | NON-TSTM WND GST 44 | 2 Se Clearwater, MN | MESONET STATION MN017 CLEARWATER 1SE. |
| Apr 20, 3:35 PM CDT | TSTM WND GST 44 | 1 Nne Rush City, MN | ASOS STATION KROS RUSH CITY AP. |
| Apr 20, 3:35 PM CDT | NON-TSTM WND GST 44 | 1 Nne Rush City, MN | ASOS STATION KROS RUSH CITY AP. |
| Apr 20, 3:39 PM CDT | TSTM WND GST 47 | 3 Ne Winsted, MN | MESONET STATION FW4584 WINSTED. |
| Apr 20, 3:39 PM CDT | NON-TSTM WND GST 47 | 3 Ne Winsted, MN | MESONET STATION FW4584 WINSTED. |
| Apr 20, 3:41 PM CDT | TSTM WND GST 47 | 3 Sse Dayton, MN | MESONET STATION HPN27 DAYTON. |
| Apr 20, 3:41 PM CDT | NON-TSTM WND GST 47 | 3 Sse Dayton, MN | MESONET STATION HPN27 DAYTON. |
| Apr 20, 3:50 PM CDT | TSTM WND GST 53 | Coon Rapids, MN | MESONET STATION CW0561 COON RAPIDS. |
| Apr 20, 3:50 PM CDT | NON-TSTM WND GST 53 | Coon Rapids, MN | MESONET STATION CW0561 COON RAPIDS. |
| Apr 20, 3:51 PM CDT | TSTM WND GST 43 | 1 Ne Appleton, MN | AWOS STATION KAQP APPLETON AP. |
| Apr 20, 3:51 PM CDT | NON-TSTM WND GST 43 | 1 Ne Appleton, MN | AWOS STATION KAQP APPLETON AP. |
| Apr 20, 4:04 PM CDT | TSTM WND GST 51 | 1 Wnw Carver, MN | . |
| Apr 20, 4:04 PM CDT | TSTM WND GST 51 | 1 Wnw Carver, MN | |
| Apr 20, 4:04 PM CDT | NON-TSTM WND GST 51 | 1 Wnw Carver, MN | |
| Apr 20, 4:12 PM CDT | TSTM WND GST 56 | 2 Ese St. Paul, MN | ASOS STATION KSTP ST. PAUL DWTN AP. |
| Apr 20, 4:15 PM CDT | TSTM WND GST 54 | 5 Sw Prior Lake, MN | MESONET STATION EW0600 LYDIA. |
| Apr 20, 4:15 PM CDT | TSTM WND GST 55 | 1 Sw Bloomington, MN | . |
| Apr 20, 4:15 PM CDT | TSTM WND GST 55 | 1 Sw Bloomington, MN | |
| Apr 20, 4:15 PM CDT | NON-TSTM WND GST 55 | 1 Sw Bloomington, MN | |
| Apr 20, 4:47 PM CDT | HAIL 0.25 | 1 Sw Rosemount, MN | |
| Apr 20, 4:52 PM CDT | HAIL 0.25 | 1 W Circle Pines, MN | |
| Apr 20, 5:25 PM CDT | HAIL 0.5 | 3 S Burnsville, MN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 8.8 hours before the alert went out and 47 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
- 2501 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
089 WWUS83 KMPX 200849 RFWMPX URGENT - FIRE WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 349 AM CDT Mon Apr 20 2020 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED TODAY ACROSS THE SOUTHERN HALF OF MINNESOTA... .Strong westerly winds with gusts in the 35 to 40 mph range, combined with minimum humidity values in the 20s to low 30s, will create critical fire weather conditions today. The lowest humidity values are expected across western and southern Minnesota. Scattered to numerous showers and a few thunderstorms are expected across central and eastern Minnesota later this afternoon, but after critical fire conditions are met. MNZ041>045-047>070-073>078-082>085-091>093-201700- /O.UPG.KMPX.FW.A.0001.200420T1300Z-200420T2300Z/ /O.NEW.KMPX.FW.W.0001.200420T1300Z-200420T2300Z/ 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- 349 AM CDT Mon Apr 20 2020 ...RED FLAG WARNING IN EFFECT FROM 8 AM THIS MORNING TO 6 PM CDT THIS EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR CENTRAL AND SOUTHERN MINNESOTA... The National Weather Service in Twin Cities/Chanhassen has issued a Red Flag Warning, which is in effect from 8 AM this morning to 6 PM CDT this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Locations south of a line from Alexandria, to Little Falls, Mora, and Rush City. * WIND...West to northwest sustained near 25 mph this afternoon, with gusts of 35 to 40 mph. * HUMIDITY...25 to 32 percent. * THUNDERSTORMS...Slight chance late this afternoon. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ Borghoff
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 20, 9:44 AM CDT | Wind Advisory | MPX | Brown, Chippewa, Kandiyohi, Lac qui Parle, Martin, Pope and 6 more | 9 hr |
| Apr 20, 4:08 PM CDT | Special Weather Statement | MPX | Hennepin | 37 min |
| Apr 20, 4:16 PM CDT | Special Weather Statement | MPX | Washington | 44 min |
| Apr 20, 4:31 PM CDT | Special Weather Statement | MPX | Dakota | 29 min |
| Apr 20, 4:59 PM CDT | Special Weather Statement | MPX | Scott | 31 min |
| Apr 20, 5:43 PM CDT | Special Weather Statement | MPX | Goodhue | 47 min |
Nearby
Red Flag Warnings in Minnesota, 2020Every red flag warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.