Alert archive / South Dakota / Red Flag Warnings in 2021
Red Flag Warning 3, NWS Rapid City, SD
NWS Rapid City, SD issued this red flag warning at Mar 28, 2021, 1:59 PM MDT for 5 counties in South Dakota. It took effect at Mar 29, 2021, 11:00 AM MDT. It was in force for 33 hr. 60 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
- Mar 28, 2021, 1:59 PM MDT (19:59 UTC)
- In effect from
- Mar 29, 2021, 11:00 AM MDT
- Expired
- Mar 30, 2021, 8:00 PM MDT
- In force
- 33 hr
- Issued by
- NWS Rapid City, SD
Counties Haakon County, SD, Jackson County, SD, Meade County, SD, Pennington County, SD, Ziebach County, SD
The radar
The Rapid City radar (KUDX), 64 km from the middle of the area, began a volume at 20:01 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 |
|---|---|---|---|
| Mar 29, 11:05 AM MDT | NON-TSTM WND GST 51 | 7 E Sturgis, SD | |
| Mar 29, 11:08 AM MDT | HIGH SUST WINDS 51 | Rapid City Arpt, SD | |
| Mar 29, 11:09 AM MDT | NON-TSTM WND GST 57 | 3 W Union Center, SD | |
| Mar 29, 11:09 AM MDT | NON-TSTM WND GST 59 | 4 E Cactus Flat, SD | |
| Mar 29, 11:09 AM MDT | NON-TSTM WND GST 61 | 9 Ene Belvidere, SD | |
| Mar 29, 11:09 AM MDT | NON-TSTM WND GST 75 | 3 Nw Wasta, SD | |
| Mar 29, 11:14 AM MDT | HIGH SUST WINDS 47 | 1 E Dwtn Rapid City, SD | |
| Mar 29, 11:14 AM MDT | HIGH SUST WINDS 55 | 3 Nw Wasta, SD | |
| Mar 29, 11:14 AM MDT | NON-TSTM WND GST 58 | 2 Sw Bridger, SD | |
| Mar 29, 11:14 AM MDT | NON-TSTM WND GST 68 | 1 E Dwtn Rapid City, SD | |
| Mar 29, 11:19 AM MDT | HIGH SUST WINDS 45 | 4 E Cactus Flat, SD | |
| Mar 29, 11:24 AM MDT | HIGH SUST WINDS 43 | 3 W Union Center, SD | |
| Mar 29, 11:24 AM MDT | HIGH SUST WINDS 45 | 9 Ene Belvidere, SD | |
| Mar 29, 11:24 AM MDT | HIGH SUST WINDS 49 | Ellsworth Afb, SD | |
| Mar 29, 11:24 AM MDT | HIGH SUST WINDS 51 | 1 W Box Elder, SD | |
| Mar 29, 11:24 AM MDT | NON-TSTM WND GST 61 | Ellsworth Afb, SD | |
| Mar 29, 11:24 AM MDT | NON-TSTM WND GST 66 | 5 Wnw New Underwood, SD | |
| Mar 29, 11:29 AM MDT | NON-TSTM WND GST 62 | 1 Ene Mud Butte, SD | |
| Mar 29, 11:31 AM MDT | NON-TSTM WND GST 74 | Rapid City Arpt, SD | |
| Mar 29, 11:33 AM MDT | NON-TSTM WND GST 58 | 4 S Dwtn Rapid City, SD | |
| Mar 29, 11:34 AM MDT | HIGH SUST WINDS 46 | 1 Ne Midland, SD | |
| Mar 29, 11:34 AM MDT | HIGH SUST WINDS 47 | 1 Ene Mud Butte, SD | |
| Mar 29, 11:34 AM MDT | HIGH SUST WINDS 47 | 5 Wnw New Underwood, SD | |
| Mar 29, 11:34 AM MDT | NON-TSTM WND GST 68 | 1 W Box Elder, SD | |
| Mar 29, 11:39 AM MDT | HIGH SUST WINDS 54 | 7 E Wanblee, SD | |
| Mar 29, 11:39 AM MDT | NON-TSTM WND GST 63 | 1 Ne Midland, SD | |
| Mar 29, 11:39 AM MDT | NON-TSTM WND GST 67 | 7 E Wanblee, SD | |
| Mar 29, 11:40 AM MDT | NON-TSTM WND GST 64 | 1 Nne Faith, SD | |
| Mar 29, 11:44 AM MDT | HIGH SUST WINDS 51 | 3 Nnw Scenic, SD | |
| Mar 29, 11:50 AM MDT | NON-TSTM WND GST 59 | 3 E Philip, SD | |
| Mar 29, 11:51 AM MDT | NON-TSTM WND GST 67 | 3 Nnw Scenic, SD | |
| Mar 29, 11:53 AM MDT | HIGH SUST WINDS 51 | 1 Wsw Red Elm, SD | |
| Mar 29, 11:53 AM MDT | NON-TSTM WND GST 68 | 1 Wsw Red Elm, SD | |
| Mar 29, 11:55 AM MDT | HIGH SUST WINDS 40 | 3 E Philip, SD | |
| Mar 29, 11:56 AM MDT | HIGH SUST WINDS 44 | 1 Nne Faith, SD | |
| Mar 29, 12:03 PM MDT | HIGH SUST WINDS 43 | 3 E Philip, SD | |
| Mar 29, 12:04 PM MDT | NON-TSTM WND GST 52 | 4 S Dwtn Rapid City, SD | |
| Mar 29, 12:05 PM MDT | HIGH SUST WINDS 46 | 5 Wnw New Underwood, SD | |
| Mar 29, 12:05 PM MDT | NON-TSTM WND GST 53 | 2 Sw Bridger, SD | |
| Mar 29, 12:08 PM MDT | HIGH SUST WINDS 53 | 3 Nw Wasta, SD | |
| Mar 29, 12:09 PM MDT | HIGH SUST WINDS 40 | 1 E Dwtn Rapid City, SD | |
| Mar 29, 12:09 PM MDT | NON-TSTM WND GST 67 | 5 Wnw New Underwood, SD | |
| Mar 29, 12:13 PM MDT | HIGH SUST WINDS 46 | 9 Ene Belvidere, SD | |
| Mar 29, 12:13 PM MDT | HIGH SUST WINDS 49 | 4 E Cactus Flat, SD | |
| Mar 29, 12:13 PM MDT | HIGH SUST WINDS 54 | 1 Ne Midland, SD | |
| Mar 29, 12:13 PM MDT | NON-TSTM WND GST 63 | 4 E Cactus Flat, SD | |
| Mar 29, 12:13 PM MDT | NON-TSTM WND GST 66 | Ellsworth Afb, SD | |
| Mar 29, 12:15 PM MDT | HIGH SUST WINDS 40 | 2 E Cottonwood, SD | |
| Mar 29, 12:18 PM MDT | NON-TSTM WND GST 72 | 1 Ne Midland, SD | |
| Mar 29, 12:19 PM MDT | NON-TSTM WND GST 65 | 1 Wsw Red Elm, SD | |
| Mar 29, 12:19 PM MDT | NON-TSTM WND GST 70 | 3 Nw Wasta, SD | |
| Mar 29, 12:20 PM MDT | HIGH SUST WINDS 45 | 8 S Wall, SD | |
| Mar 29, 12:20 PM MDT | HIGH SUST WINDS 51 | 7 E Wanblee, SD | |
| Mar 29, 12:20 PM MDT | NON-TSTM WND GST 59 | 8 S Wall, SD | |
| Mar 29, 12:22 PM MDT | HIGH SUST WINDS 51 | Ellsworth Afb, SD | |
| Mar 29, 12:22 PM MDT | NON-TSTM WND GST 63 | 1 Nne Faith, SD | |
| Mar 29, 12:23 PM MDT | HIGH SUST WINDS 48 | 1 Ene Mud Butte, SD | |
| Mar 29, 12:23 PM MDT | HIGH SUST WINDS 56 | 3 Nnw Scenic, SD | |
| Mar 29, 12:23 PM MDT | NON-TSTM WND GST 59 | 1 Ene Mud Butte, SD | |
| Mar 29, 12:23 PM MDT | NON-TSTM WND GST 65 | 9 Ene Belvidere, SD |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Rapid City, SD (KUNR), launched 12:00Z, 8.0 hours before the alert went out and 69 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
- 1627 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 258 m²/s²
- 0-3 km storm-relative helicity
- 248 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
131 WWUS83 KUNR 281959 RFWUNR URGENT - FIRE WEATHER MESSAGE National Weather Service Rapid City SD 159 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING AND THEN 11 AM TO 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... ...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM CDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 334 AND 335... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 322, 326, 332, AND 333... ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 327 AND 328... ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 314, 316, 318, 323, AND 324... .Gusty west to northwest winds, low relative humidity, and dry fuels will support critical fire weather conditions this afternoon across far northeast Wyoming into northwest South Dakota. Gusty northwest winds behind a strong cold front will bring low relative humidity on the South Dakota plains Monday afternoon leading to critical fire weather conditions in concert with dry fuels. SDZ329>331-291100- /O.NEW.KUNR.FW.W.0003.210329T1700Z-210330T0000Z/ /O.CON.KUNR.FW.W.0002.000000T0000Z-210329T0000Z/ West Central Plains-Ziebach County-Haakon County Area- 159 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... The National Weather Service in Rapid City has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 11 AM to 6 PM MDT Monday. * AFFECTED AREA...Fire Weather Zones 329 West Central Plains, 330 Ziebach County and 331 Haakon County Area. * WINDS...Northwest 15 to 30 mph with gusts to 45 mph this afternoon. West to northwest 25 to 45 mph with gusts up to 65 mph Monday. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. 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. && $$ SDZ334-335-291100- /O.UPG.KUNR.FW.A.0003.210329T1700Z-210330T0000Z/ /O.EXB.KUNR.FW.W.0002.210329T1700Z-210330T0000Z/ Mellette and Todd Counties-Tripp County- 259 PM CDT Sun Mar 28 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM CDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 334 AND 335... The National Weather Service in Rapid City has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from noon to 7 PM CDT Monday. * AFFECTED AREA...Fire Weather Zones 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...West 35 to 45 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ SDZ322-326-332-333-291100- /O.EXB.KUNR.FW.W.0002.210329T1700Z-210330T0000Z/ Fall River County Area-Pine Ridge Area-Badlands Area- Bennett County Area- 159 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 322, 326, 332, AND 333... The National Weather Service in Rapid City has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 11 AM to 6 PM MDT Monday. * AFFECTED AREA...Fire Weather Zones 322 Fall River County Area, 326 Pine Ridge Area, 332 Badlands Area and 333 Bennett County Area. * WINDS...Northwest 30 to 40 mph with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. 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. && $$ SDZ327-328-291100- /O.CON.KUNR.FW.W.0002.000000T0000Z-210330T0000Z/ Butte County Area-Perkins County- 159 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 327 AND 328... * AFFECTED AREA...Fire Weather Zones 327 Butte County Area and 328 Perkins County. * WINDS...West 15 to 30 mph this afternoon and then west 35 to 45 mph with gusts up to 65 mph Monday. * RELATIVE HUMIDITY...As low as 14 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ SDZ323-324-WYZ314-316-318-290000- /O.CON.KUNR.FW.W.0002.000000T0000Z-210329T0000Z/ Northern Foot Hills-Eastern Foot Hills-Northern Campbell- Crook County Plains-Wyoming Black Hills- 159 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 314, 316, 318, 323, AND 324... * AFFECTED AREA...Fire Weather Zones 314 Northern Campbell, 316 Crook County Plains, 318 Wyoming Black Hills, 323 Northern Foot Hills and 324 Eastern Foot Hills. * WINDS...West 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. 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. && $$
10 follow-up statements
055 WWUS83 KUNR 282346 RFWUNR URGENT - FIRE WEATHER MESSAGE National Weather Service Rapid City SD 546 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING AND THEN 11 AM TO 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... ...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM CDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 334 AND 335... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 322, 326, 332, AND 333... ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 327 AND 328... ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 314, 316, 318, 323, AND 324... .Gusty northwest winds behind a strong cold front will bring low relative humidity on the South Dakota plains Monday afternoon leading to critical fire weather conditions in concert with dry fuels. SDZ329>331-291500- /O.EXP.KUNR.FW.W.0002.000000T0000Z-210329T0000Z/ /O.CON.KUNR.FW.W.0003.210329T1700Z-210330T0000Z/ West Central Plains-Ziebach County-Haakon County Area- 546 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... ...RED FLAG WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... * AFFECTED AREA...Fire Weather Zones 329 West Central Plains, 330 Ziebach County and 331 Haakon County Area. * WINDS...West 35 to 45 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. 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. && $$ SDZ323-324-WYZ314-316-318-290100- /O.EXP.KUNR.FW.W.0002.000000T0000Z-210329T0000Z/ Northern Foot Hills-Eastern Foot Hills-Northern Campbell- Crook County Plains-Wyoming Black Hills- 546 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 314, 316, 318, 323, AND 324... While winds will continue to be strong overnight, relative humidity will begin a meager recovery this evening and overnight. Dry, downslope winds will likely result in elevated fire weather concerns overnight tonight. However, critical RH is not expected tonight. Strong winds continue behind a dry cold front Monday will result in another day of near- critical fire weather danger. $$ SDZ327-328-291500- /O.CON.KUNR.FW.W.0002.000000T0000Z-210330T0000Z/ Butte County Area-Perkins County- 546 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 327 AND 328... * AFFECTED AREA...Fire Weather Zones 327 Butte County Area and 328 Perkins County. * WINDS...West 35 to 45 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ SDZ322-326-332>335-291500- /O.CON.KUNR.FW.W.0002.210329T1700Z-210330T0000Z/ Fall River County Area-Pine Ridge Area-Badlands Area- Bennett County Area-Mellette and Todd Counties-Tripp County- 546 PM MDT Sun Mar 28 2021 /646 PM CDT Sun Mar 28 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM MDT /NOON CDT/ TO 6 PM MDT /7 PM CDT/ MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 322, 326, 332, 333, 334, AND 335... * AFFECTED AREA...Fire Weather Zones 322 Fall River County Area, 326 Pine Ridge Area, 332 Badlands Area, 333 Bennett County Area, 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...West 35 to 45 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. 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. && $$
343 WWUS83 KUNR 290017 RFWUNR URGENT - FIRE WEATHER MESSAGE National Weather Service Rapid City SD 617 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... ...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM CDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 334 AND 335... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 322, 326, 332, AND 333... ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 327 AND 328... ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 314, 316, 318, 323, AND 324... .Gusty northwest winds behind a strong cold front will bring low relative humidity on the South Dakota plains Monday afternoon leading to critical fire weather conditions in concert with dry fuels. SDZ327-328-291530- /O.CON.KUNR.FW.W.0002.000000T0000Z-210330T0000Z/ Butte County Area-Perkins County- 617 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 327 AND 328... * AFFECTED AREA...Fire Weather Zones 327 Butte County Area and 328 Perkins County. * WINDS...West 35 to 45 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ SDZ322-326-332>335-291530- /O.CON.KUNR.FW.W.0002.210329T1700Z-210330T0000Z/ Fall River County Area-Pine Ridge Area-Badlands Area- Bennett County Area-Mellette and Todd Counties-Tripp County- 617 PM MDT Sun Mar 28 2021 /717 PM CDT Sun Mar 28 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM MDT /NOON CDT/ TO 6 PM MDT /7 PM CDT/ MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 322, 326, 332, 333, 334, AND 335... * AFFECTED AREA...Fire Weather Zones 322 Fall River County Area, 326 Pine Ridge Area, 332 Badlands Area, 333 Bennett County Area, 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...West 35 to 45 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. 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. && $$ SDZ329>331-291530- /O.CON.KUNR.FW.W.0003.210329T1700Z-210330T0000Z/ West Central Plains-Ziebach County-Haakon County Area- 617 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... * AFFECTED AREA...Fire Weather Zones 329 West Central Plains, 330 Ziebach County and 331 Haakon County Area. * WINDS...Northwest 35 to 45 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
838 WWUS83 KUNR 290020 RFWUNR URGENT - FIRE WEATHER MESSAGE National Weather Service Rapid City SD 620 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... ...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM CDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 334 AND 335... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 322, 326, 332, AND 333... ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 327 AND 328... .Gusty northwest winds behind a strong cold front will bring low relative humidity on the South Dakota plains Monday afternoon leading to critical fire weather conditions in concert with dry fuels. SDZ327-328-291530- /O.CON.KUNR.FW.W.0002.000000T0000Z-210330T0000Z/ Butte County Area-Perkins County- 620 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 327 AND 328... * AFFECTED AREA...Fire Weather Zones 327 Butte County Area and 328 Perkins County. * WINDS...West 35 to 45 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 14 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. 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. && $$ SDZ322-326-332>335-291530- /O.CON.KUNR.FW.W.0002.210329T1700Z-210330T0000Z/ Fall River County Area-Pine Ridge Area-Badlands Area- Bennett County Area-Mellette and Todd Counties-Tripp County- 620 PM MDT Sun Mar 28 2021 /720 PM CDT Sun Mar 28 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM MDT /NOON CDT/ TO 6 PM MDT /7 PM CDT/ MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 322, 326, 332, 333, 334, AND 335... * AFFECTED AREA...Fire Weather Zones 322 Fall River County Area, 326 Pine Ridge Area, 332 Badlands Area, 333 Bennett County Area, 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...West 35 to 45 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ SDZ329>331-291530- /O.CON.KUNR.FW.W.0003.210329T1700Z-210330T0000Z/ West Central Plains-Ziebach County-Haakon County Area- 620 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 6 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... * AFFECTED AREA...Fire Weather Zones 329 West Central Plains, 330 Ziebach County and 331 Haakon County Area. * WINDS...Northwest 35 to 45 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. 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. && $$
592 WWUS83 KUNR 290831 RFWUNR URGENT - FIRE WEATHER MESSAGE National Weather Service Rapid City SD 231 AM MDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 327 AND 328... ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM MDT /NOON CDT/ THIS MORNING TO 6 PM MDT /7 PM CDT/ THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 322, 326, 332, 333, 334, AND 335... ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... .Gusty northwest winds behind a strong cold front, combined with low relative humidity and dry fuels will lead to critical fire weather conditions on the South Dakota plains today. SDZ327-328-300000- /O.CON.KUNR.FW.W.0002.000000T0000Z-210330T0000Z/ Butte County Area-Perkins County- 231 AM MDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 327 AND 328... * AFFECTED AREA...Fire Weather Zones 327 Butte County Area and 328 Perkins County. * WINDS...West 35 to 45 mph with gusts up to 70 mph. * RELATIVE HUMIDITY...As low as 18 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ SDZ322-326-332>335-300000- /O.CON.KUNR.FW.W.0002.210329T1700Z-210330T0000Z/ Fall River County Area-Pine Ridge Area-Badlands Area- Bennett County Area-Mellette and Todd Counties-Tripp County- 231 AM MDT Mon Mar 29 2021 /331 AM CDT Mon Mar 29 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM MDT /NOON CDT/ THIS MORNING TO 6 PM MDT /7 PM CDT/ THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 322, 326, 332, 333, 334, AND 335... * AFFECTED AREA...Fire Weather Zones 322 Fall River County Area, 326 Pine Ridge Area, 332 Badlands Area, 333 Bennett County Area, 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...West 25 to 35 mph with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 16 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. 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. && $$ SDZ329>331-300000- /O.CON.KUNR.FW.W.0003.210329T1700Z-210330T0000Z/ West Central Plains-Ziebach County-Haakon County Area- 231 AM MDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... * AFFECTED AREA...Fire Weather Zones 329 West Central Plains, 330 Ziebach County and 331 Haakon County Area. * WINDS...Northwest 35 to 40 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 16 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
833 WWUS83 KUNR 291430 RFWUNR URGENT - FIRE WEATHER MESSAGE National Weather Service Rapid City SD 830 AM MDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 327 AND 328... ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM MDT /NOON CDT/ THIS MORNING TO 6 PM MDT /7 PM CDT/ THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 322, 326, 332, 333, 334, AND 335... ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... .Gusty northwest winds behind a strong cold front, combined with low relative humidity and dry fuels will lead to critical fire weather conditions on the South Dakota plains today. SDZ327-328-300000- /O.CON.KUNR.FW.W.0002.000000T0000Z-210330T0000Z/ Butte County Area-Perkins County- 830 AM MDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 327 AND 328... * AFFECTED AREA...Fire Weather Zones 327 Butte County Area and 328 Perkins County. * WINDS...West 35 to 45 mph with gusts up to 70 mph. * RELATIVE HUMIDITY...As low as 18 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. 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. && $$ SDZ322-326-332>335-300000- /O.CON.KUNR.FW.W.0002.210329T1700Z-210330T0000Z/ Fall River County Area-Pine Ridge Area-Badlands Area- Bennett County Area-Mellette and Todd Counties-Tripp County- 830 AM MDT Mon Mar 29 2021 /930 AM CDT Mon Mar 29 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT /7 PM CDT/ THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 322, 326, 332, 333, 334, AND 335... * AFFECTED AREA...Fire Weather Zones 322 Fall River County Area, 326 Pine Ridge Area, 332 Badlands Area, 333 Bennett County Area, 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...West 25 to 35 mph with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ SDZ329>331-300000- /O.CON.KUNR.FW.W.0003.210329T1700Z-210330T0000Z/ West Central Plains-Ziebach County-Haakon County Area- 830 AM MDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... * AFFECTED AREA...Fire Weather Zones 329 West Central Plains, 330 Ziebach County and 331 Haakon County Area. * WINDS...West 30 to 40 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. 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. && $$
909 WWUS83 KUNR 292041 RFWUNR URGENT - FIRE WEATHER MESSAGE National Weather Service Rapid City SD 241 PM MDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 322...327 AND 328... ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT /9 PM CDT/ TUESDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 326, 329, 330, 331, 332, 333, 334, AND 335... .Gusty northwest winds behind a strong cold front, combined with low relative humidity and dry fuels will lead to critical fire weather conditions on the South Dakota plains today. SDZ329>331-301145- /O.EXT.KUNR.FW.W.0003.000000T0000Z-210331T0200Z/ West Central Plains-Ziebach County-Haakon County Area- 241 PM MDT Mon Mar 29 2021 ...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM MDT TUESDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... * AFFECTED AREA...Fire Weather Zones 329 West Central Plains, 330 Ziebach County and 331 Haakon County Area. * WINDS...Northwest 35 to 45 mph with gusts up to 60 mph this afternoon, decreasing this evening, and then increasing to 25 to 35 mph with gusts to 45 mph Tuesday. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ SDZ326-332>335-301145- /O.EXT.KUNR.FW.W.0002.000000T0000Z-210331T0200Z/ Pine Ridge Area-Badlands Area-Bennett County Area- Mellette and Todd Counties-Tripp County- 241 PM MDT Mon Mar 29 2021 /341 PM CDT Mon Mar 29 2021/ ...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM MDT /9 PM CDT/ TUESDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 326, 332, 333, 334, AND 335... * AFFECTED AREA...Fire Weather Zones 326 Pine Ridge Area, 332 Badlands Area, 333 Bennett County Area, 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...Northwest 35 to 45 mph with gusts up to 60 mph this afternoon, decreasing this evening, and then increasing to 25 to 35 mph with gusts to 45 mph Tuesday. * RELATIVE HUMIDITY...As low as 11 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. 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. && $$ SDZ327-328-300000- /O.CON.KUNR.FW.W.0002.000000T0000Z-210330T0000Z/ Butte County Area-Perkins County- 241 PM MDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 327 AND 328... * AFFECTED AREA...Fire Weather Zones 327 Butte County Area and 328 Perkins County. * WINDS...West 30 to 40 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 17 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ SDZ322-300000- /O.CON.KUNR.FW.W.0002.000000T0000Z-210330T0000Z/ Fall River County Area- 241 PM MDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 322... * AFFECTED AREA...Fire Weather Zone 322 Fall River County Area. * WINDS...Northwest 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 14 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. 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. && $$
347 WWUS83 KUNR 300000 RFWUNR URGENT - FIRE WEATHER MESSAGE National Weather Service Rapid City SD 600 PM MDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT /9 PM CDT/ TUESDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 326, 329, 330, 331, 332, 333, 334, AND 335... .Gusty northwest winds behind a strong cold front, combined with low relative humidity and dry fuels will lead to critical fire weather conditions on the South Dakota plains today. SDZ327-328-300100- /O.EXP.KUNR.FW.W.0002.000000T0000Z-210330T0000Z/ Butte County Area-Perkins County- 600 PM MDT Mon Mar 29 2021 ...RED FLAG WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 327 AND 328... Relative humidity is increasing; however, winds will remain breezy through Tuesday. $$ SDZ322-300100- /O.EXP.KUNR.FW.W.0002.000000T0000Z-210330T0000Z/ Fall River County Area- 600 PM MDT Mon Mar 29 2021 ...RED FLAG WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 322... Relative humidity is increasing, and winds are diminishing. $$ SDZ329>331-301500- /O.CON.KUNR.FW.W.0003.000000T0000Z-210331T0200Z/ West Central Plains-Ziebach County-Haakon County Area- 600 PM MDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT TUESDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... * AFFECTED AREA...Fire Weather Zones 329 West Central Plains, 330 Ziebach County and 331 Haakon County Area. * WINDS...Northwest 35 to 45 mph with gusts up to 60 mph this evening, decreasing overnight, and then increasing to 25 to 35 mph with gusts to 45 mph Tuesday. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ SDZ326-332>335-301500- /O.CON.KUNR.FW.W.0002.000000T0000Z-210331T0200Z/ Pine Ridge Area-Badlands Area-Bennett County Area- Mellette and Todd Counties-Tripp County- 600 PM MDT Mon Mar 29 2021 /700 PM CDT Mon Mar 29 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT /9 PM CDT/ TUESDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 326, 332, 333, 334, AND 335... * AFFECTED AREA...Fire Weather Zones 326 Pine Ridge Area, 332 Badlands Area, 333 Bennett County Area, 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...Northwest 35 to 45 mph with gusts up to 60 mph this evening, decreasing overnight, and then increasing to 25 to 35 mph with gusts to 45 mph Tuesday. * RELATIVE HUMIDITY...As low as 11 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. 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. && $$
086 WWUS83 KUNR 300853 RFWUNR URGENT - FIRE WEATHER MESSAGE National Weather Service Rapid City SD Issued by National Weather Service North Platte NE 253 AM MDT Tue Mar 30 2021 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT /9 PM CDT/ TUESDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 326, 327, 328, 329, 330, 331, 332, 333, 334, AND 335... .Strong northwest winds and extremely dry air behind a cold front will support critical fire weather conditions today on most of the SD plains. Predicted high temperatures, in the 30s to lower 40s, will lessen the fire weather concerns somewhat from levels experienced Monday. SDZ327-328-310000- /O.EXA.KUNR.FW.W.0002.000000T0000Z-210331T0200Z/ Butte County Area-Perkins County- 253 AM MDT Tue Mar 30 2021 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 327 AND 328... The National Weather Service in Rapid City has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect until 8 PM MDT this evening. * AFFECTED AREA...Fire Weather Zones 327 Butte County Area and 328 Perkins County. * WINDS...Northwest 30 to 40 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 18 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ SDZ329>331-310000- /O.CON.KUNR.FW.W.0003.000000T0000Z-210331T0200Z/ West Central Plains-Ziebach County-Haakon County Area- 253 AM MDT Tue Mar 30 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... * AFFECTED AREA...Fire Weather Zones 329 West Central Plains, 330 Ziebach County and 331 Haakon County Area. * WINDS...Northwest 25 to 35 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 17 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. 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. && $$ SDZ326-332>335-310000- /O.CON.KUNR.FW.W.0002.000000T0000Z-210331T0200Z/ Pine Ridge Area-Badlands Area-Bennett County Area- Mellette and Todd Counties-Tripp County- 253 AM MDT Tue Mar 30 2021 /353 AM CDT Tue Mar 30 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT /9 PM CDT/ THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 326, 332, 333, 334, AND 335... * AFFECTED AREA...Fire Weather Zones 326 Pine Ridge Area, 332 Badlands Area, 333 Bennett County Area, 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...Northwest 25 to 35 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 17 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
648 WWUS83 KUNR 302043 RFWUNR URGENT - FIRE WEATHER MESSAGE National Weather Service Rapid City SD 243 PM MDT Tue Mar 30 2021 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT /9 PM CDT/ TUESDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 326, 327, 328, 329, 330, 331, 332, 333, 334, AND 335... .Strong northwest winds and extremely dry air continues to support critical fire weather conditions through this evening across most of the SD plains. The strong winds will begin to subside around sunset tonight. SDZ326>328-332>335-310200- /O.CON.KUNR.FW.W.0002.000000T0000Z-210331T0200Z/ Pine Ridge Area-Butte County Area-Perkins County-Badlands Area- Bennett County Area-Mellette and Todd Counties-Tripp County- 243 PM MDT Tue Mar 30 2021 /343 PM CDT Tue Mar 30 2021/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT /9 PM CDT/ THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 326, 327, 328, 332, 333, 334, AND 335... * AFFECTED AREA...Fire Weather Zones 326 Pine Ridge Area, 327 Butte County Area, 328 Perkins County, 332 Badlands Area, 333 Bennett County Area, 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...Northwest 25 to 35 mph with gusts up to 55 mph. * RELATIVE HUMIDITY...As low as 17 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. 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. && $$ SDZ329>331-310200- /O.CON.KUNR.FW.W.0003.000000T0000Z-210331T0200Z/ West Central Plains-Ziebach County-Haakon County Area- 243 PM MDT Tue Mar 30 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... * AFFECTED AREA...Fire Weather Zones 329 West Central Plains, 330 Ziebach County and 331 Haakon County Area. * WINDS...Northwest 25 to 35 mph with gusts up to 55 mph. * RELATIVE HUMIDITY...As low as 18 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
073 WWUS83 KUNR 310202 RFWUNR URGENT - FIRE WEATHER MESSAGE National Weather Service Rapid City SD 802 PM MDT Tue Mar 30 2021 SDZ329>331-310315- /O.EXP.KUNR.FW.W.0003.000000T0000Z-210331T0200Z/ West Central Plains-Ziebach County-Haakon County Area- 802 PM MDT Tue Mar 30 2021 ...RED FLAG WARNING HAS EXPIRED FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329, 330, AND 331... Winds have decreased rapidly this evening with the loss of daytime heating, and relative humidity is slowly recovering. As a result, the red flag warning has been allowed to expire. $$ SDZ326>328-332>335-310315- /O.EXP.KUNR.FW.W.0002.000000T0000Z-210331T0200Z/ Pine Ridge Area-Butte County Area-Perkins County-Badlands Area- Bennett County Area-Mellette and Todd Counties-Tripp County- 802 PM MDT Tue Mar 30 2021 /902 PM CDT Tue Mar 30 2021/ ...RED FLAG WARNING HAS EXPIRED FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 326, 327, 328, 332, 333, 334, AND 335... Winds have decreased rapidly this evening with the loss of daytime heating, and relative humidity is slowly recovering. As a result, the red flag warning has been allowed to expire. $$
What forecasters said that day
The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Rapid City, SD wrote its last area forecast discussion before this red flag warning went out at Mar 28, 11:35 AM MDT, 2 hours 24 minutes earlier.
Area forecast discussion, Mar 28, 11:35 AM MDT, 2 hours 24 minutes before
Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
1135 AM MDT Sun Mar 28 2021
.DISCUSSION...(Today Through Saturday)
Issued at 217 AM MDT Sun Mar 28 2021
Potent upper trough is in the process of digging into the Pac NW,
with associated downstream ridging. This system will support a
widespread high wind event across the FA Monday, along with a
increased fire weather concerns. WAA is ensuing aloft, which will
spread east today via breezy westerly winds. Much warmer conds
expected today with highs in the 60s and few 70s. Increasing SW
flow ahead of the fast moving upper trough combined with a
standing mountain wave over the Black Hills and ongoing pressure
falls will support a decent downslope wind event late tonight in
the eastern Black Hills and adjacent foothills. Expect fluctuating
sustained winds of 25 to 40 mph with gusts over 60 mph there.
Strong SW flow will also mix down across the high plains of NE WY
(southern Campbell county). Given high confidence, have decided to
upgrade these areas to a high wind warning tonight, running it
through Monday for post frontal winds. Staunch sfc cyclone will
develop with this strong upper trough, supporting a strong cold
front. This front will rapidly advect through the region Monday
morning, clearing half if not more of the FA by noon. Strong
pressure rises, steep LL lapse rates, and vigorous CAA will
support a classic setup for very strong winds over much of the FA,
esp NW SD. Expect to see wind gusts over 70 mph in NW SD and in
the lee of the Black Hills. Hence, have upgraded this area to a
high wind warning. Given lower confidence, have left a portion of
the high wind watch out for the remainder of the area, mainly the
southern third and the rest of NE WY. Very dry air will wrap into
this system with not much precip expected. The only area that will
see some chances for rain/snow will be NE WY and the northern
Black Hills. Gusty winds will persist through Monday night and
into Tues, with adv level winds possible Tues over NW SD. Brief
period of cooler temps on track into mid week, with another sig
warm up toward the end of the week as another large upper ridge
pushes east supporting very warm temps. Dry conds will also
prevail in this period.
&&
.AVIATION...For the 18Z TAFS Through 18Z Monday
Issued At 1127 AM MDT Sun Mar 28 2021
Gusty southwest winds will continue through the afternoon. While
the winds will decrease across most of the area this evening,
they will increase over northeastern WY and the northern/eastern
parts of the Black Hills. A cold front will move through the area
Monday morning, with winds switching to the northwest and
increasing to 25 to 45 kt with gusts to 55 to 65 kt, especially
over the northwest SD plains. Sky/visibility will remain VFR.
&&
.FIRE WEATHER...
Issued At 217 AM MDT Sun Mar 28 2021
Warm temps with gusty westerly winds and low relative humidity
will support critical fire weather conditions today across much of
NE WY and NW SD and potentially Monday across south central SD.
Have extended the red flag warning across NW SD today, and issued
a fire weather watch for scentral SD Monday where very dry air and
lingering warmer temps and gusty winds may support a window of
critical fire weather conditions there. Otherwise, forecast models
continue to trend toward a quicker arrival of the cold front
Monday, which looks to limit critical fire weather conds over the
remainder of the area, although extreme grassland is forecast for
all of western SD given dry fuels and strong winds.
&&
.UNR WATCHES/WARNINGS/ADVISORIES...
SD...Red Flag Warning until 6 PM MDT this evening for SDZ323-324-
329>331.
High Wind Watch from Monday afternoon through Monday evening for
SDZ027-041>044-046-047-049.
Fire Weather Watch from Monday afternoon through Monday evening
for SDZ334-335.
High Wind Warning from 6 AM Monday to midnight MDT Monday night
for SDZ001-002-012>014-030>032-073.
Red Flag Warning until 6 PM MDT Monday for SDZ327-328.
High Wind Warning from midnight tonight to 6 PM MDT Monday for
SDZ024>026-028-029-072-074.
WY...Red Flag Warning until 6 PM MDT this evening for WYZ314-316-318.
High Wind Watch from Monday morning through Monday afternoon for
WYZ054-056>058-071.
High Wind Warning from midnight tonight to 6 PM MDT Monday for
WYZ055.
&&
DISCUSSION...JC
AVIATION...55
FIRE WEATHER...JCHazardous weather outlook, Mar 28, 6:47 AM MDT, 7 hours 12 minutes before
Hazardous Weather Outlook National Weather Service Rapid City SD 647 AM MDT Sun Mar 28 2021 SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058- 071-291300- Harding-Perkins-Butte-Northern Meade Co Plains-Ziebach- Northern Black Hills-Northern Foot Hills-Rapid City- Southern Foot Hills-Central Black Hills-Southern Black Hills- Custer Co Plains-Pennington Co Plains-Haakon-Fall River- Oglala Lakota-Jackson-Bennett-Mellette-Todd-Tripp- Sturgis/Piedmont Foot Hills-Southern Meade Co Plains- Hermosa Foot Hills-Northern Campbell-Southern Campbell- Western Crook-Wyoming Black Hills-Weston-Northeastern Crook- 647 AM MDT Sun Mar 28 2021 /747 AM CDT Sun Mar 28 2021/ This Hazardous Weather Outlook is for portions of western South Dakota and northeastern Wyoming. .DAY ONE...Today and Tonight Gusty winds and low humidity will bring critical fire weather conditions today. See the latest Fire Weather Message (RFWUNR) and Rangeland Fire Danger Statement (RFDUNR) for details. Very strong winds are possible over portions of northeast Wyoming and the Black Hills tonight. See the latest Non-Precipitation Weather Message (NPWUNR) for details. .DAYS TWO THROUGH SEVEN...Monday through Saturday Gusty winds and low humidity will bring critical fire weather conditions again Monday. See the latest Fire Weather Message (RFWUNR) and Rangeland Fire Danger Statement (RFDUNR) for details. Very strong winds are possible over western South Dakota Monday. See the latest Non-Precipitation Weather Message (NPWUNR) for details. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today. && Stay tuned to NOAA weather radio for further updates...or check our web site at weather.gov/rapidcity
The office that day
Everything else NWS Rapid City, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 2:23 AM MDT | High Wind Warning | UNR | Bennett, Butte, Custer, Fall River, Haakon, Harding and 10 more | 46 hr |
| Mar 28, 2:32 AM MDT | Fire Weather Watch | UNR | Mellette, Todd, Tripp | 11 hr |
Nearby
Red Flag Warnings in South Dakota, 2021Every red flag warning in 2021
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.