Alert archive / Minnesota / Red Flag Warnings in 2017

Red Flag Warning 4, NWS Sioux Falls, SD

April 16, 2017Lincoln County, Lyon County, Minnesota

NWS Sioux Falls, SD issued this red flag warning at Apr 16, 2017, 3:11 AM CDT for Lincoln County, Lyon County, Minnesota. It took effect at Apr 16, 2017, 12:00 PM CDT. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 16, 2017, 3:11 AM CDT (08:11 UTC)
In effect from
Apr 16, 2017, 12:00 PM CDT
Expired
Apr 16, 2017, 8:00 PM CDT
In force
8 hr
Issued by
NWS Sioux Falls, SD

Counties Lincoln County, MN, Lyon County, MN

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 8.2 hours before the alert went out and 193 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, Aberdeen, SD at 00:00Z on 2017-04-16Temperature 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, Aberdeen, SD at 00:00Z on 2017-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -60 square meters per square second.19395878Sfc1 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
2354 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
-60 m²/s²
0-3 km storm-relative helicity
-17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

610 
WWUS83 KFSD 160811
RFWFSD

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sioux Falls SD
311 AM CDT Sun Apr 16 2017

...A Red Flag Warning has been issued for Minnesota fire weather 
zones 071 and 072, which is Lincoln and Lyon counties, Sunday 
afternoon and early evening, for strong west winds and dry 
humidity...

MNZ071-072-161615-
/O.UPG.KFSD.FW.A.0003.170416T1700Z-170417T0100Z/
/O.NEW.KFSD.FW.W.0004.170416T1700Z-170417T0100Z/
Lincoln MN-Lyon MN-
311 AM CDT Sun Apr 16 2017

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS
EVENING FOR STRONG WEST WINDS AND DRY HUMIDITY FOR FIRE WEATHER 
ZONES 071 AND 072...

The National Weather Service in Sioux Falls has issued a Red Flag
Warning, which is in effect from noon today to 8 PM CDT this
evening. The Fire Weather Watch is no longer in effect. 

* WIND...West northwest winds will average 20 to 25 mph with 
  gusts to 30 mph. 

* HUMIDITY...Minimum humidity values will near 25 percent.

* IMPACTS...Any fires that develop will likely spread rapidly.
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$
1 follow-up statement
717 
WWUS83 KFSD 170049
RFWFSD

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sioux Falls SD
749 PM CDT Sun Apr 16 2017

MNZ071-072-170200-
/O.EXP.KFSD.FW.W.0004.000000T0000Z-170417T0100Z/
Lincoln MN-Lyon MN-
749 PM CDT Sun Apr 16 2017

...RED FLAG WARNING WILL EXPIRE AT 8 PM CDT THIS EVENING FOR
STRONG WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 071 AND 
072...

Winds continue to diminish and humidity is on the rise. Therefore,
red flag conditions are no longer expected.

$$

Nearby

Red Flag Warnings in Minnesota, 2017Every red flag warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.