Alert archive / South Dakota / Freeze Warnings in 2020

Freeze Warning 2, NWS Sioux Falls, SD

May 9, 20204 states

NWS Sioux Falls, SD issued this freeze warning at May 9, 2020, 3:38 AM CDT for 4 states. It took effect at May 10, 2020, 2:00 AM CDT. It was in force for 7 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
May 9, 2020, 3:38 AM CDT (08:38 UTC)
In effect from
May 10, 2020, 2:00 AM CDT
Expired
May 10, 2020, 9:00 AM CDT
In force
7 hr
Issued by
NWS Sioux Falls, SD
All 34 counties

Lyon County, IA, O'Brien County, IA, Osceola County, IA, Sioux County, IA, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Dixon County, NE, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brookings County, SD, Brule County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Sanborn County, SD, Turner County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 39 km from the middle of the area, began a volume at 08:41 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 8.6 hours before the alert went out and 169 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 2020-05-09Temperature 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 2020-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
2198 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
183 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

435 
WWUS73 KFSD 090838
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
338 AM CDT Sat May 9 2020

IAZ001-MNZ097-098-SDZ040-056-062-067-091645-
/O.NEW.KFSD.FZ.W.0002.200510T0700Z-200510T1300Z/
/O.CON.KFSD.FR.Y.0002.200509T0900Z-200509T1300Z/
Lyon-Pipestone-Rock-Brookings-Moody-Minnehaha-Lincoln-
338 AM CDT Sat May 9 2020

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING...
...FREEZE WARNING IN EFFECT FROM 2 AM TO 8 AM CDT SUNDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 30 expected. For the Frost Advisory, temperatures as low as
  30 to 35 with light winds will result in frost formation.

* WHERE...In South Dakota, Brookings, Moody, Minnehaha and 
  Lincoln Counties. In Iowa, Lyon County. In Minnesota, 
  Pipestone and Rock Counties.

* WHEN...For the Freeze Warning, from 2 AM to 8 AM CDT Sunday. 
  For the Frost Advisory, until 8 AM CDT this morning.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

SDZ038-039-050-052>055-057>061-063>066-068>070-091645-
/O.NEW.KFSD.FZ.W.0002.200510T0700Z-200510T1300Z/
Beadle-Kingsbury-Gregory-Jerauld-Sanborn-Miner-Lake-Brule-Aurora-
Davison-Hanson-McCook-Charles Mix-Douglas-Hutchinson-Turner-
Bon Homme-Yankton-Clay-
338 AM CDT Sat May 9 2020

...FREEZE WARNING IN EFFECT FROM 2 AM TO 8 AM CDT SUNDAY...

* WHAT...Sub-freezing temperatures as low as 29 expected.

* WHERE...Portions of central, east central, south central and 
  southeast South Dakota.

* WHEN...From 2 AM to 8 AM CDT Sunday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IAZ002-003-012>014-020>022-031-032-MNZ071-080-081-089-090-NEZ013-
014-SDZ071-091300-
/O.CON.KFSD.FR.Y.0002.200509T0900Z-200509T1300Z/
Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Lincoln-Murray-Cottonwood-Nobles-Jackson-
Dixon-Dakota-Union-
338 AM CDT Sat May 9 2020

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING...

* WHAT...Temperatures as low as 32 to 35 and light winds will 
  result in frost formation.

* WHERE...In South Dakota, Union County. In Nebraska, Dixon and
  Dakota Counties. In Minnesota, Lincoln, Murray, Cottonwood,
  Nobles and Jackson Counties. In Iowa, Buena Vista, Woodbury and
  Ida counties.

* WHEN...Until 8 AM CDT Saturday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/siouxfalls
8 follow-up statements
436 
WWUS73 KFSD 090854
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
354 AM CDT Sat May 9 2020

IAZ001-MNZ097-098-SDZ040-056-062-067-091700-
/O.CON.KFSD.FZ.W.0002.200510T0700Z-200510T1300Z/
/O.CON.KFSD.FR.Y.0002.200509T0900Z-200509T1300Z/
Lyon-Pipestone-Rock-Brookings-Moody-Minnehaha-Lincoln-
354 AM CDT Sat May 9 2020

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING...
...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT
SUNDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 30 expected. For the Frost Advisory, temperatures as 
  low as 30 to 35 with light winds will result in frost 
  formation.

* WHERE...In South Dakota, Brookings, Moody, Minnehaha and 
  Lincoln Counties. In Iowa, Lyon County. In Minnesota, 
  Pipestone and Rock Counties.

* WHEN...For the Freeze Warning, from 2 AM to 8 AM CDT Sunday. 
  For the Frost Advisory, until 8 AM CDT this morning.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

SDZ050-057-063-091700-
/O.NEW.KFSD.WI.Y.0013.200509T1900Z-200510T0100Z/
/O.CON.KFSD.FZ.W.0002.200510T0700Z-200510T1300Z/
Gregory-Brule-Charles Mix-
354 AM CDT Sat May 9 2020

...WIND ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM CDT
THIS EVENING...
...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT
SUNDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 28 expected. For the Wind Advisory, northwest winds 25 to 35
  mph with gusts up to 45 mph expected.

* WHERE...Gregory, Brule and Charles Mix Counties.

* WHEN...For the Freeze Warning, from 2 AM to 8 AM CDT Sunday. 
  For the Wind Advisory, from 2 PM this afternoon to 8 PM CDT 
  this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

SDZ038-039-052>055-058>061-064>066-068>070-091700-
/O.CON.KFSD.FZ.W.0002.200510T0700Z-200510T1300Z/
Beadle-Kingsbury-Jerauld-Sanborn-Miner-Lake-Aurora-Davison-Hanson-
McCook-Douglas-Hutchinson-Turner-Bon Homme-Yankton-Clay-
354 AM CDT Sat May 9 2020

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT
SUNDAY...

* WHAT...Sub-freezing temperatures as low as 29 expected.

* WHERE...Portions of central, east central, south central and 
  southeast South Dakota.

* WHEN...From 2 AM to 8 AM CDT Sunday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IAZ002-003-012>014-020>022-031-032-MNZ071-080-081-089-090-NEZ013-
014-SDZ071-091300-
/O.CON.KFSD.FR.Y.0002.200509T0900Z-200509T1300Z/
Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Lincoln-Murray-Cottonwood-Nobles-Jackson-
Dixon-Dakota-Union-
354 AM CDT Sat May 9 2020

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING...

* WHAT...Temperatures as low as 32 to 35 and light winds will 
  result in frost formation.

* WHERE...In South Dakota, Union County. In Nebraska, Dixon and 
  Dakota Counties. In Minnesota, Lincoln, Murray, Cottonwood, 
  Nobles and Jackson Counties. In Iowa, Buena Vista, Woodbury 
  and Ida counties.

* WHEN...Until 8 AM CDT Saturday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/siouxfalls
330 
WWUS73 KFSD 091146
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
646 AM CDT Sat May 9 2020

MNZ097-SDZ040-056-062-067-092000-
/O.CAN.KFSD.FR.Y.0002.000000T0000Z-200509T1300Z/
/O.CON.KFSD.FZ.W.0002.200510T0700Z-200510T1300Z/
Pipestone-Brookings-Moody-Minnehaha-Lincoln-
646 AM CDT Sat May 9 2020

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT
SUNDAY...
...FROST ADVISORY IS CANCELLED...

* WHAT...For the Freeze Warning tonight and early Sunday, sub-
  freezing temperatures as low as 30 expected. 

* WHERE...In South Dakota, Moody, Brookings, Lincoln and 
  Minnehaha Counties. In Minnesota, Pipestone County.

* WHEN...From 2 AM to 8 AM CDT Sunday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

MNZ071-NEZ013-091300-
/O.CAN.KFSD.FR.Y.0002.000000T0000Z-200509T1300Z/
Lincoln-Dixon-
646 AM CDT Sat May 9 2020

...FROST ADVISORY IS CANCELLED...

Temperatures have warmed with southerly winds starting early this
morning.

$$

IAZ001-MNZ098-092000-
/O.CON.KFSD.FZ.W.0002.200510T0700Z-200510T1300Z/
/O.CON.KFSD.FR.Y.0002.000000T0000Z-200509T1300Z/
Lyon-Rock-
646 AM CDT Sat May 9 2020

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING...
...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT
SUNDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 30 expected. For the Frost Advisory, temperatures as 
  low as 30 to 35 with light winds will result in frost 
  formation.

* WHERE...In South Dakota, Brookings, Moody, Minnehaha and 
  Lincoln Counties. In Iowa, Lyon County. In Minnesota, 
  Pipestone and Rock Counties.

* WHEN...For the Freeze Warning, from 2 AM to 8 AM CDT Sunday. 
  For the Frost Advisory, until 8 AM CDT this morning.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

SDZ050-057-063-092000-
/O.CON.KFSD.FZ.W.0002.200510T0700Z-200510T1300Z/
/O.CON.KFSD.WI.Y.0013.200509T1900Z-200510T0100Z/
Gregory-Brule-Charles Mix-
646 AM CDT Sat May 9 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
8 PM CDT THIS EVENING...
...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT
SUNDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 28 expected. For the Wind Advisory, northwest winds 25 
  to 35 mph with gusts up to 45 mph expected.

* WHERE...Gregory, Brule and Charles Mix Counties.

* WHEN...For the Freeze Warning, from 2 AM to 8 AM CDT Sunday. 
  For the Wind Advisory, from 2 PM this afternoon to 8 PM CDT 
  this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

SDZ038-039-052>055-058>061-064>066-068>070-092000-
/O.CON.KFSD.FZ.W.0002.200510T0700Z-200510T1300Z/
Beadle-Kingsbury-Jerauld-Sanborn-Miner-Lake-Aurora-Davison-Hanson-
McCook-Douglas-Hutchinson-Turner-Bon Homme-Yankton-Clay-
646 AM CDT Sat May 9 2020

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT
SUNDAY...

* WHAT...Sub-freezing temperatures as low as 29 expected.

* WHERE...Portions of central, east central, south central and 
  southeast South Dakota.

* WHEN...From 2 AM to 8 AM CDT Sunday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IAZ002-003-012>014-020>022-031-032-MNZ080-081-089-090-NEZ014-
SDZ071-091300-
/O.CON.KFSD.FR.Y.0002.000000T0000Z-200509T1300Z/
Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Murray-Cottonwood-Nobles-Jackson-Dakota-
Union-
646 AM CDT Sat May 9 2020

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING...

* WHAT...Temperatures as low as 32 to 35 and light winds will 
  result in frost formation.

* WHERE...In South Dakota, Union County. In Nebraska, Dixon and 
  Dakota Counties. In Minnesota, Lincoln, Murray, Cottonwood, 
  Nobles and Jackson Counties. In Iowa, Buena Vista, Woodbury 
  and Ida counties.

* WHEN...Until 8 AM CDT Saturday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/siouxfalls
421 
WWUS73 KFSD 091239
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
739 AM CDT Sat May 9 2020

IAZ001-MNZ098-100000-
/O.EXP.KFSD.FR.Y.0002.000000T0000Z-200509T1300Z/
/O.CON.KFSD.FZ.W.0002.200510T0700Z-200510T1300Z/
Lyon-Rock-
739 AM CDT Sat May 9 2020

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT
SUNDAY...
...FROST ADVISORY WILL EXPIRE AT 8 AM CDT THIS MORNING...

* WHAT...Sub-freezing temperatures as low as 31 expected.

* WHERE...In Iowa, Lyon County. In Minnesota, Rock County.

* WHEN...From 2 AM to 8 AM CDT Sunday.

* IMPACTS...Frost and freeze conditions may kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IAZ002-003-012>014-020>022-031-032-MNZ080-081-089-090-NEZ014-
SDZ071-091345-
/O.EXP.KFSD.FR.Y.0002.000000T0000Z-200509T1300Z/
Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Murray-Cottonwood-Nobles-Jackson-Dakota-
Union-
739 AM CDT Sat May 9 2020

...FROST ADVISORY WILL EXPIRE AT 8 AM CDT THIS MORNING...

Morning sunshine has begun to warm surface temperatures, therefore
the Frost Advisory will be allowed to expire.

$$

SDZ050-057-063-100000-
/O.CON.KFSD.FZ.W.0002.200510T0700Z-200510T1300Z/
/O.CON.KFSD.WI.Y.0013.200509T1900Z-200510T0100Z/
Gregory-Brule-Charles Mix-
739 AM CDT Sat May 9 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
8 PM CDT THIS EVENING...
...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT
SUNDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 28 expected. For the Wind Advisory, northwest winds 20 
  to 30 mph with gusts up to 45 mph expected.

* WHERE...Charles Mix, Brule and Gregory Counties.

* WHEN...For the Freeze Warning, from 2 AM to 8 AM CDT Sunday. 
  For the Wind Advisory, from 2 PM this afternoon to 8 PM CDT 
  this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. Frost
  and freeze conditions may kill crops, other sensitive 
  vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

MNZ097-SDZ038>040-052>056-058>062-064>070-100000-
/O.CON.KFSD.FZ.W.0002.200510T0700Z-200510T1300Z/
Pipestone-Beadle-Kingsbury-Brookings-Jerauld-Sanborn-Miner-Lake-
Moody-Aurora-Davison-Hanson-McCook-Minnehaha-Douglas-Hutchinson-
Turner-Lincoln-Bon Homme-Yankton-Clay-
739 AM CDT Sat May 9 2020

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT
SUNDAY...

* WHAT...Sub-freezing temperatures as low as 29 expected.

* WHERE...Portions of central, east central, south central and 
  southeast South Dakota and southwest Minnesota.

* WHEN...From 2 AM to 8 AM CDT Sunday.

* IMPACTS...Frost and freeze conditions may kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/siouxfalls
930 
WWUS73 KFSD 091724
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
1224 PM CDT Sat May 9 2020

SDZ038-039-052>054-058>060-064-065-068-100530-
/O.EXB.KFSD.WI.Y.0013.200509T1900Z-200510T0200Z/
/O.CON.KFSD.FZ.W.0002.200510T0700Z-200510T1300Z/
Beadle-Kingsbury-Jerauld-Sanborn-Miner-Aurora-Davison-Hanson-
Douglas-Hutchinson-Bon Homme-
1224 PM CDT Sat May 9 2020

...WIND ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING...
...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT
SUNDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 30 expected. For the Wind Advisory, northwest winds 20 
  to 30 mph with gusts up to 50 mph expected.

* WHERE...Portions of central, east central, south central and 
  southeast South Dakota.

* WHEN...For the Freeze Warning, from 2 AM to 8 AM CDT Sunday. 
  For the Wind Advisory, until 9 PM CDT this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Frost and freeze conditions may kill crops, other sensitive 
  vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

SDZ050-057-063-100530-
/O.EXT.KFSD.WI.Y.0013.200509T1900Z-200510T0200Z/
/O.CON.KFSD.FZ.W.0002.200510T0700Z-200510T1300Z/
Gregory-Brule-Charles Mix-
1224 PM CDT Sat May 9 2020

...WIND ADVISORY NOW IN EFFECT UNTIL 9 PM CDT THIS EVENING...
...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT
SUNDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 30 expected. For the Wind Advisory, northwest winds 20 
  to 30 mph with gusts up to 50 mph expected.

* WHERE...Charles Mix, Brule and Gregory Counties.

* WHEN...For the Freeze Warning, from 2 AM to 8 AM CDT Sunday. 
  For the Wind Advisory, until 9 PM CDT this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Frost and freeze conditions may kill crops, other sensitive 
  vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IAZ001-MNZ097-098-SDZ040-055-056-061-062-066-067-069-070-100530-
/O.CON.KFSD.FZ.W.0002.200510T0700Z-200510T1300Z/
Lyon-Pipestone-Rock-Brookings-Lake-Moody-McCook-Minnehaha-Turner-
Lincoln-Yankton-Clay-
1224 PM CDT Sat May 9 2020

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT
SUNDAY...

* WHAT...Sub-freezing temperatures as low as 30 expected.

* WHERE...Portions of east central and southeast South Dakota, 
  northwest Iowa and southwest Minnesota.

* WHEN...From 2 AM to 8 AM CDT Sunday.

* IMPACTS...Frost and freeze conditions may kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/siouxfalls
841 
WWUS73 KFSD 091929
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
229 PM CDT Sat May 9 2020

IAZ002-012-013-MNZ071-072-080-089-NEZ013-101400-
/O.EXB.KFSD.FZ.W.0002.200510T0700Z-200510T1400Z/
Osceola-Sioux-O'Brien-Lincoln-Lyon-Murray-Nobles-Dixon-
229 PM CDT Sat May 9 2020

...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM CDT SUNDAY...

* WHAT...Sub-freezing temperatures as low as 31 expected.

* WHERE...In Nebraska, Dixon County. In Iowa, Osceola, Sioux and 
  O'Brien Counties. In Minnesota, Lincoln, Lyon, Murray and 
  Nobles Counties.

* WHEN...From 2 AM to 9 AM CDT Sunday.

* IMPACTS...Frost and freeze conditions may kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

SDZ038-039-050-052>054-057>060-063>065-068-101400-
/O.EXT.KFSD.FZ.W.0002.200510T0700Z-200510T1400Z/
/O.CON.KFSD.WI.Y.0013.000000T0000Z-200510T0200Z/
Beadle-Kingsbury-Gregory-Jerauld-Sanborn-Miner-Brule-Aurora-
Davison-Hanson-Charles Mix-Douglas-Hutchinson-Bon Homme-
229 PM CDT Sat May 9 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING...
...FREEZE WARNING NOW IN EFFECT FROM 2 AM TO 9 AM CDT SUNDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 30 expected. For the Wind Advisory, northwest winds 20 
  to 30 mph with gusts up to 50 mph.

* WHERE...Portions of central, east central, south central and 
  southeast South Dakota.

* WHEN...For the Freeze Warning, from 2 AM to 9 AM CDT Sunday. 
  For the Wind Advisory, until 9 PM CDT this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. Frost
  and freeze conditions may kill crops, other sensitive 
  vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IAZ001-MNZ097-098-SDZ040-055-056-061-062-066-067-069-070-101400-
/O.EXT.KFSD.FZ.W.0002.200510T0700Z-200510T1400Z/
Lyon-Pipestone-Rock-Brookings-Lake-Moody-McCook-Minnehaha-Turner-
Lincoln-Yankton-Clay-
229 PM CDT Sat May 9 2020

...FREEZE WARNING NOW IN EFFECT FROM 2 AM TO 9 AM CDT SUNDAY...

* WHAT...Sub-freezing temperatures as low as 30 expected.

* WHERE...Portions of east central and southeast South Dakota, 
  northwest Iowa and southwest Minnesota.

* WHEN...From 2 AM to 9 AM CDT Sunday.

* IMPACTS...Frost and freeze conditions may kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/siouxfalls
215 
WWUS73 KFSD 100153
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
853 PM CDT Sat May 9 2020

SDZ038-039-050-052>054-057>060-063>065-068-101100-
/O.EXP.KFSD.WI.Y.0013.000000T0000Z-200510T0200Z/
/O.CON.KFSD.FZ.W.0002.200510T0700Z-200510T1400Z/
Beadle-Kingsbury-Gregory-Jerauld-Sanborn-Miner-Brule-Aurora-
Davison-Hanson-Charles Mix-Douglas-Hutchinson-Bon Homme-
853 PM CDT Sat May 9 2020

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM CDT
SUNDAY...
...WIND ADVISORY WILL EXPIRE AT 9 PM CDT THIS EVENING...

* WHAT...An isolated wind gust to 40 mph will be possible through
  10 pm. Sub- freezing temperatures as low as 31 expected.

* WHERE...Portions of central, east central, south central and 
  southeast South Dakota.

* WHEN...For the Freeze Warning, from 2 AM to 9 AM CDT Sunday. 
  For the Wind Advisory, until 9 PM CDT this evening.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IAZ001-002-012-013-MNZ071-072-080-089-097-098-NEZ013-SDZ040-055-
056-061-062-066-067-069-070-101100-
/O.CON.KFSD.FZ.W.0002.200510T0700Z-200510T1400Z/
Lyon-Osceola-Sioux-O'Brien-Lincoln-Murray-Nobles-Pipestone-Rock-
Dixon-Brookings-Lake-Moody-McCook-Minnehaha-Turner-Yankton-Clay-
853 PM CDT Sat May 9 2020

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM CDT
SUNDAY...

* WHAT...Sub-freezing temperatures as low as 30 expected.

* WHERE...Portions of east central and southeast South Dakota, 
  northwest Iowa and southwest Minnesota.

* WHEN...From 2 AM to 9 AM CDT Sunday.

* IMPACTS...Frost and freeze conditions may kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/siouxfalls
899 
WWUS73 KFSD 100920
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
420 AM CDT Sun May 10 2020

IAZ001-002-012-013-MNZ071-072-080-089-097-098-NEZ013-SDZ038>040-
050-052>070-101730-
/O.NEW.KFSD.FZ.W.0003.200511T0700Z-200511T1300Z/
/O.CON.KFSD.FZ.W.0002.000000T0000Z-200510T1400Z/
Lyon-Osceola-Sioux-O'Brien-Lincoln-Murray-Nobles-Pipestone-Rock-
Dixon-Beadle-Kingsbury-Brookings-Gregory-Jerauld-Sanborn-Miner-
Lake-Moody-Brule-Aurora-Davison-Hanson-McCook-Minnehaha-
Charles Mix-Douglas-Hutchinson-Turner-Bon Homme-Yankton-Clay-
420 AM CDT Sun May 10 2020

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING...
...FREEZE WARNING IN EFFECT FROM 2 AM TO 8 AM CDT MONDAY...

* WHAT...Sub-freezing temperatures as low as the upper 20s to
  around 30. 

* WHERE...Portions of central, east central, south central and 
  southeast South Dakota, northeast Nebraska, northwest Iowa and 
  southwest Minnesota.

* WHEN...For the first Freeze Warning, until 9 AM CDT this 
  morning. For the second Freeze Warning, from 2 AM to 8 AM CDT 
  Monday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IAZ003-014-020>022-031-032-MNZ081-090-NEZ014-SDZ071-101730-
/O.NEW.KFSD.FZ.W.0003.200511T0700Z-200511T1300Z/
Dickinson-Clay-Plymouth-Cherokee-Buena Vista-Woodbury-Ida-
Cottonwood-Jackson-Dakota-Union-
420 AM CDT Sun May 10 2020

...FREEZE WARNING IN EFFECT FROM 2 AM TO 8 AM CDT MONDAY...

* WHAT...Sub-freezing temperatures as low as 29 expected.

* WHERE...Portions of southeast South Dakota, northeast 
  Nebraska, northwest and west central Iowa and southwest 
  Minnesota.

* WHEN...From 2 AM to 8 AM CDT Monday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/siouxfalls
878 
WWUS73 KFSD 101335
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
835 AM CDT Sun May 10 2020

IAZ001-002-012-013-MNZ071-072-080-089-097-098-NEZ013-SDZ038>040-
050-052>070-102245-
/O.EXP.KFSD.FZ.W.0002.000000T0000Z-200510T1400Z/
/O.CON.KFSD.FZ.W.0003.200511T0700Z-200511T1300Z/
Lyon-Osceola-Sioux-O'Brien-Lincoln-Murray-Nobles-Pipestone-Rock-
Dixon-Beadle-Kingsbury-Brookings-Gregory-Jerauld-Sanborn-Miner-
Lake-Moody-Brule-Aurora-Davison-Hanson-McCook-Minnehaha-
Charles Mix-Douglas-Hutchinson-Turner-Bon Homme-Yankton-Clay-
835 AM CDT Sun May 10 2020

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT
MONDAY...
...FREEZE WARNING WILL EXPIRE AT 9 AM CDT THIS MORNING...

* WHAT...Sub-freezing temperatures as low as 28 expected.

* WHERE...Portions of central, east central, south central and 
  southeast South Dakota, northeast Nebraska, northwest Iowa and 
  southwest Minnesota.

* WHEN...From 2 AM to 8 AM CDT Monday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

IAZ003-014-020>022-031-032-MNZ081-090-NEZ014-SDZ071-102245-
/O.CON.KFSD.FZ.W.0003.200511T0700Z-200511T1300Z/
Dickinson-Clay-Plymouth-Cherokee-Buena Vista-Woodbury-Ida-
Cottonwood-Jackson-Dakota-Union-
835 AM CDT Sun May 10 2020

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT
MONDAY...

* WHAT...Sub-freezing temperatures as low as 29 expected.

* WHERE...Portions of southeast South Dakota, northeast 
  Nebraska, northwest and west central Iowa and southwest 
  Minnesota.

* WHEN...From 2 AM to 8 AM CDT Monday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/siouxfalls

What forecasters said that day

The local office's own words before this freeze warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Sioux Falls, SD wrote its last area forecast discussion before this freeze warning went out at May 8, 10:46 PM CDT, 4 hours 52 minutes earlier.

Area forecast discussion, May 8, 10:46 PM CDT, 4 hours 52 minutes before
AREA FORECAST DISCUSSION
National Weather Service Sioux Falls SD
1046 PM CDT Fri May 8 2020

.UPDATE...
Issued at 1042 PM CDT Fri May 8 2020

Update for 06Z TAF issuance

UPDATE Issued at 821 PM CDT Fri May 8 2020

Just a quick update to expand the frost advisory north to include
Brookings SD and Lincoln MN. Thinking areas of frost could develop
as temperatures fall into the mid 30s, but southwest winds
increasing will likely keep temperatures slightly warmer in Lyon
County due to the downslope effect from the Buffalo Ridge. Updated
temperature and headlines posted.

UPDATE Issued at 628 PM CDT Fri May 8 2020

Update for 00Z TAFs.

&&

.SHORT TERM...(This Evening through Saturday)
Issued at 345 PM CDT Fri May 8 2020

A cool start to the weekend with breezy north winds and afternoon
temperatures in the lower 50s despite mostly sunny skies. Breezy
northwest winds will decrease to 10 mph or less late this evening
as the pressure gradient weakens. Northwest flow aloft dominates
the region as a strong upper-level low moves across the Great
Lakes and farther west, a clipper-type system drops southeast into
North Dakota tonight. At the surface, clouds will be on the
increase as WAA begins to surge northward into the region,
bringing slightly warmer conditions west of I-29. Conditions will
be slightly different east of I-29 as clouds filter in later
overnight and light variable winds still dominate the area. This
will result in another cool night with the potential for frost.
Therefore, will continue with the Frost Advisory for northwest
Iowa. Have also expanded the advisory northward and westward to
include parts of southwest Minnesota and southeast SD.

Scattered rain showers become likely by late Saturday morning/early
afternoon as the aforementioned clipper-system approaches the
forecast region. Latest guidance and soundings indicate surface
temperatures remaining in the 50s and 60s through the day,
leading to rain as the main p-type. Instability looks weak through
the day with low rates and CAPE values; therefore, only rain
showers are expected. Rain amounts will be in the 0.05 to 0.25
inch range. As the system moves farther east Saturday evening,
colder air filters in from the northwest. This could result in
rain mixing with or changing to snow Saturday night into early
Sunday. Snow accumulations remain on the light side, with only a
couple of tenths of an inch. Best snow chances will be over higher
elevations, such as the Buffalo Ridge area. Another concern on
Saturday will be breezy to windy conditions, especially across
south central SD. With momentum transfer near 30 knots a the top
of the boundary layer west of the James river, gusts up to 35-40
mph cannot be ruled out.

.LONG TERM...(Saturday Night through Friday)
Issued at 345 PM CDT Fri May 8 2020

Mother's Day will start off with lingering light rain or flurries
during the morning hours as a secondary-weak shortwave drops
southward. The best chance for light showers/flurries will be east
of I-29. Sunday night is shaping up to be another cold night across
the region with lows dropping into the upper 20s and lower 30s.
Surface high pressure system builds in, resulting in light winds and
good radiational cooling. Will continue to monitor this period for
potential freeze warnings across parts of the region.

Flow aloft becomes more zonal on Monday night, bringing an active
pattern for the remainder of the week. The next shortwave looks to
move across the central Plains Tuesday into Wednesday. Latest
deterministic and GEFS/EPS ensembles are not in good agreement with
timing and PoP coverage of this system. The ECMWF looks stronger and
faster than the GFS/Canadian, bringing better rain/thunderstorm
chances late Tuesday night into Wednesday.

Besides multiple precipitation chances through the week, below
average temperatures continue across the region. Daytime
temperatures will range 10 to 20 degrees below average, at least
through Thursday.

&&

.AVIATION...(For the 06Z TAFS through 06Z Saturday night)
Issued at 1042 PM CDT Fri May 8 2020

VFR conditions through 18Z Saturday. Light winds overnight, but as
temperatures warm Saturday morning brisk southwest winds will mix
down from aloft creating gusty conditions. Rain showers will
spread from northwest to southeast across the region after 18Z
Saturday. MVFR ceilings are expected to follow suit towards 00Z,
and may see a few snowflakes mix into the show activity resulting
in temporarily reduced visibility Saturday evening.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
SD...Frost Advisory from 4 AM to 8 AM CDT Saturday for SDZ040-056-062-
     067-071.

MN...Frost Advisory from 4 AM to 8 AM CDT Saturday for MNZ071-080-081-
     089-090-097-098.

IA...Frost Advisory from 4 AM to 8 AM CDT Saturday for IAZ001>003-
     012>014-020>022-031-032.

NE...Frost Advisory from 4 AM to 8 AM CDT Saturday for NEZ013-014.

&&

UPDATE...BT
SHORT TERM...05
LONG TERM...05
AVIATION...BT
Hazardous weather outlook, May 8, 6:36 AM CDT, 21 hours 2 minutes before
Hazardous Weather Outlook
National Weather Service Sioux Falls SD
636 AM CDT Fri May 8 2020

MNZ071-072-080-097-098-SDZ038>040-050-052>067-091145-
Lincoln-Lyon-Murray-Pipestone-Rock-Beadle-Kingsbury-Brookings-
Gregory-Jerauld-Sanborn-Miner-Lake-Moody-Brule-Aurora-Davison-Hanson-
McCook-Minnehaha-Charles Mix-Douglas-Hutchinson-Turner-
636 AM CDT Fri May 8 2020

This Hazardous Weather Outlook is for southwest Minnesota, central
South Dakota, east central South Dakota, south central South Dakota
and southeast South Dakota.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Areas of frost or freezing temperatures are possible this weekend
with overnight low temperatures falling into the lower to mid 30s.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NEZ013-SDZ068>071-091145-
Dixon-Bon Homme-Yankton-Clay-Union-
636 AM CDT Fri May 8 2020

This Hazardous Weather Outlook is for northeast Nebraska and
southeast South Dakota.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Areas of frost or freezing temperatures are possible this weekend
with overnight low temperatures falling into the lower to mid 30s.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NEZ014-091145-
Dakota-
636 AM CDT Fri May 8 2020

This Hazardous Weather Outlook is for northeast Nebraska.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Areas of frost or freezing temperatures are possible this weekend
with overnight low temperatures falling into the lower to mid 30s.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

IAZ003-012>014-020-091145-
Dickinson-Sioux-O'Brien-Clay-Plymouth-
636 AM CDT Fri May 8 2020

This Hazardous Weather Outlook is for northwest Iowa.

.DAY ONE...Today and tonight.

Areas of frost are expected tonight as temperatures fall into the
lower to mid 30s.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Areas of frost or freezing temperatures are possible this weekend
with overnight low temperatures falling into the lower to mid 30s.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

IAZ021-022-031-032-091145-
Cherokee-Buena Vista-Woodbury-Ida-
636 AM CDT Fri May 8 2020

This Hazardous Weather Outlook is for northwest Iowa and west
central Iowa.

.DAY ONE...Today and tonight.

Areas of frost are expected tonight as temperatures fall into the
lower to mid 30s.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Areas of frost or freezing temperatures are possible this weekend
with overnight low temperatures falling into the lower to mid 30s.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

IAZ001-002-MNZ081-089-090-091145-
Lyon-Osceola-Cottonwood-Nobles-Jackson-
636 AM CDT Fri May 8 2020

This Hazardous Weather Outlook is for northwest Iowa and southwest
Minnesota.

.DAY ONE...Today and tonight.

Areas of frost are expected tonight as temperatures fall into the
lower to mid 30s.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Areas of frost or freezing temperatures are possible this weekend
with overnight low temperatures falling into the lower to mid 30s.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 9, 3:54 AM CDTWind AdvisoryFSDAurora, Beadle, Bon Homme, Brule, Charles Mix, Davison and 8 more17 hr

Nearby

Freeze Warnings in South Dakota, 2020Freeze Warnings in Minnesota, 2020Freeze Warnings in Iowa, 2020Every freeze warning in 2020

Sources

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