Alert archive / South Dakota / Red Flag Warnings in 2021

Red Flag Warning 3, NWS Rapid City, SD

March 28, 20215 counties in South Dakota

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

TimeReportWhereRemark
Mar 29, 11:05 AM MDTNON-TSTM WND GST 517 E Sturgis, SD
Mar 29, 11:08 AM MDTHIGH SUST WINDS 51Rapid City Arpt, SD
Mar 29, 11:09 AM MDTNON-TSTM WND GST 573 W Union Center, SD
Mar 29, 11:09 AM MDTNON-TSTM WND GST 594 E Cactus Flat, SD
Mar 29, 11:09 AM MDTNON-TSTM WND GST 619 Ene Belvidere, SD
Mar 29, 11:09 AM MDTNON-TSTM WND GST 753 Nw Wasta, SD
Mar 29, 11:14 AM MDTHIGH SUST WINDS 471 E Dwtn Rapid City, SD
Mar 29, 11:14 AM MDTHIGH SUST WINDS 553 Nw Wasta, SD
Mar 29, 11:14 AM MDTNON-TSTM WND GST 582 Sw Bridger, SD
Mar 29, 11:14 AM MDTNON-TSTM WND GST 681 E Dwtn Rapid City, SD
Mar 29, 11:19 AM MDTHIGH SUST WINDS 454 E Cactus Flat, SD
Mar 29, 11:24 AM MDTHIGH SUST WINDS 433 W Union Center, SD
Mar 29, 11:24 AM MDTHIGH SUST WINDS 459 Ene Belvidere, SD
Mar 29, 11:24 AM MDTHIGH SUST WINDS 49Ellsworth Afb, SD
Mar 29, 11:24 AM MDTHIGH SUST WINDS 511 W Box Elder, SD
Mar 29, 11:24 AM MDTNON-TSTM WND GST 61Ellsworth Afb, SD
Mar 29, 11:24 AM MDTNON-TSTM WND GST 665 Wnw New Underwood, SD
Mar 29, 11:29 AM MDTNON-TSTM WND GST 621 Ene Mud Butte, SD
Mar 29, 11:31 AM MDTNON-TSTM WND GST 74Rapid City Arpt, SD
Mar 29, 11:33 AM MDTNON-TSTM WND GST 584 S Dwtn Rapid City, SD
Mar 29, 11:34 AM MDTHIGH SUST WINDS 461 Ne Midland, SD
Mar 29, 11:34 AM MDTHIGH SUST WINDS 471 Ene Mud Butte, SD
Mar 29, 11:34 AM MDTHIGH SUST WINDS 475 Wnw New Underwood, SD
Mar 29, 11:34 AM MDTNON-TSTM WND GST 681 W Box Elder, SD
Mar 29, 11:39 AM MDTHIGH SUST WINDS 547 E Wanblee, SD
Mar 29, 11:39 AM MDTNON-TSTM WND GST 631 Ne Midland, SD
Mar 29, 11:39 AM MDTNON-TSTM WND GST 677 E Wanblee, SD
Mar 29, 11:40 AM MDTNON-TSTM WND GST 641 Nne Faith, SD
Mar 29, 11:44 AM MDTHIGH SUST WINDS 513 Nnw Scenic, SD
Mar 29, 11:50 AM MDTNON-TSTM WND GST 593 E Philip, SD
Mar 29, 11:51 AM MDTNON-TSTM WND GST 673 Nnw Scenic, SD
Mar 29, 11:53 AM MDTHIGH SUST WINDS 511 Wsw Red Elm, SD
Mar 29, 11:53 AM MDTNON-TSTM WND GST 681 Wsw Red Elm, SD
Mar 29, 11:55 AM MDTHIGH SUST WINDS 403 E Philip, SD
Mar 29, 11:56 AM MDTHIGH SUST WINDS 441 Nne Faith, SD
Mar 29, 12:03 PM MDTHIGH SUST WINDS 433 E Philip, SD
Mar 29, 12:04 PM MDTNON-TSTM WND GST 524 S Dwtn Rapid City, SD
Mar 29, 12:05 PM MDTHIGH SUST WINDS 465 Wnw New Underwood, SD
Mar 29, 12:05 PM MDTNON-TSTM WND GST 532 Sw Bridger, SD
Mar 29, 12:08 PM MDTHIGH SUST WINDS 533 Nw Wasta, SD
Mar 29, 12:09 PM MDTHIGH SUST WINDS 401 E Dwtn Rapid City, SD
Mar 29, 12:09 PM MDTNON-TSTM WND GST 675 Wnw New Underwood, SD
Mar 29, 12:13 PM MDTHIGH SUST WINDS 469 Ene Belvidere, SD
Mar 29, 12:13 PM MDTHIGH SUST WINDS 494 E Cactus Flat, SD
Mar 29, 12:13 PM MDTHIGH SUST WINDS 541 Ne Midland, SD
Mar 29, 12:13 PM MDTNON-TSTM WND GST 634 E Cactus Flat, SD
Mar 29, 12:13 PM MDTNON-TSTM WND GST 66Ellsworth Afb, SD
Mar 29, 12:15 PM MDTHIGH SUST WINDS 402 E Cottonwood, SD
Mar 29, 12:18 PM MDTNON-TSTM WND GST 721 Ne Midland, SD
Mar 29, 12:19 PM MDTNON-TSTM WND GST 651 Wsw Red Elm, SD
Mar 29, 12:19 PM MDTNON-TSTM WND GST 703 Nw Wasta, SD
Mar 29, 12:20 PM MDTHIGH SUST WINDS 458 S Wall, SD
Mar 29, 12:20 PM MDTHIGH SUST WINDS 517 E Wanblee, SD
Mar 29, 12:20 PM MDTNON-TSTM WND GST 598 S Wall, SD
Mar 29, 12:22 PM MDTHIGH SUST WINDS 51Ellsworth Afb, SD
Mar 29, 12:22 PM MDTNON-TSTM WND GST 631 Nne Faith, SD
Mar 29, 12:23 PM MDTHIGH SUST WINDS 481 Ene Mud Butte, SD
Mar 29, 12:23 PM MDTHIGH SUST WINDS 563 Nnw Scenic, SD
Mar 29, 12:23 PM MDTNON-TSTM WND GST 591 Ene Mud Butte, SD
Mar 29, 12:23 PM MDTNON-TSTM WND GST 659 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.

Skew-T log-pSkew-T log-p diagram, Rapid City, SD at 12:00Z on 2021-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Rapid City, SD at 12:00Z on 2021-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 258 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

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...JC
Hazardous 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.

IssuedProductOfficeCountiesLasted
Mar 28, 2:23 AM MDTHigh Wind WarningUNRBennett, Butte, Custer, Fall River, Haakon, Harding and 10 more46 hr
Mar 28, 2:32 AM MDTFire Weather WatchUNRMellette, Todd, Tripp11 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.