Alert archive / Minnesota / Heat Advisories in 2018

Heat Advisory 1, NWS Twin Cities, MN

May 26, 201833 counties in Minnesota

NWS Twin Cities, MN issued this heat advisory at May 26, 2018, 2:24 PM CDT for 33 counties in Minnesota. It took effect at May 27, 2018, 1:00 PM CDT. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued
May 26, 2018, 2:24 PM CDT (19:24 UTC)
In effect from
May 27, 2018, 1:00 PM CDT
Expired
May 28, 2018, 1:00 PM CDT
In force
24 hr
Issued by
NWS Twin Cities, MN
All 33 counties

Anoka County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Dakota County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Nicollet County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Steele County, MN, Swift County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Wright County, MN, Yellow Medicine County, MN

The radar

The Minneapolis radar (KMPX), 46 km from the middle of the area, began a volume at 19:26 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

Minneapolis, MN (KMPX), launched 12:00Z, 7.4 hours before the alert went out and 43 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, Minneapolis, MN at 12:00Z on 2018-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 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, Minneapolis, MN at 12:00Z on 2018-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 square meters per square second.193958Sfc1 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
1 J/kg
Mixed-layer CIN
-283 J/kg
Mixed-layer LCL
2221 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
105 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

651 
WWUS73 KMPX 261924
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
224 PM CDT Sat May 26 2018

MNZ060-062-270400-
/O.NEW.KMPX.HT.Y.0001.180527T1800Z-180528T0100Z/
Hennepin-Ramsey-
Including the cities of Minneapolis and St Paul
224 PM CDT Sat May 26 2018

...HEAT ADVISORY IN EFFECT FROM 1 PM TO 8 PM CDT SUNDAY...

The National Weather Service in Twin Cities/Chanhassen has issued
a Heat Advisory, which is in effect from 1 PM to 8 PM CDT Sunday.

* TEMPERATURE...Heat index values climbing to between 95 and 100
  degrees within the Twin Cities.

* IMPACTS...Heat illnesses are possible for those active outdoors
  or those susceptible to heat illnesses, such as children and the
  elderly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids...stay in an air-conditioned
room...stay out of the sun...and check up on relatives and
neighbors.

   Take extra precautions...if you work or spend time outside.
When possible...reschedule strenuous activities to early morning
or evening. Know the signs and symptoms of heat exhaustion and
heat stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

   To reduce risk during outdoor work...the occupational safety
and health administration recommends scheduling frequent rest
breaks in shaded or air conditioned environments. Anyone overcome
by heat should be moved to a cool and shaded location.   Heat
stroke is an emergency...call 9 1 1.

&&

$$
8 follow-up statements
500 
WWUS73 KMPX 270418
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
1118 PM CDT Sat May 26 2018


MNZ060-062-271230-
/O.CON.KMPX.HT.Y.0001.180527T1800Z-180528T0100Z/
Hennepin-Ramsey-
Including the cities of Minneapolis and St Paul
1118 PM CDT Sat May 26 2018

...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM TO 8 PM CDT SUNDAY...

* TEMPERATURE...Heat index values climbing to between 95 and 100 
  degrees within the Twin Cities. 

* IMPACTS...Heat illnesses are possible for those active 
  outdoors or those susceptible to heat illnesses, such as 
  children and the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids...stay in an air-conditioned
room...stay out of the sun...and check up on relatives and
neighbors.

  Take extra precautions...if you work or spend time outside.
When possible...reschedule strenuous activities to early morning
or evening. Know the signs and symptoms of heat exhaustion and
heat stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

  To reduce risk during outdoor work...the occupational safety
and health administration recommends scheduling frequent rest
breaks in shaded or air conditioned environments. Anyone overcome
by heat should be moved to a cool and shaded location.   Heat
stroke is an emergency...call 9 1 1.

&&

$$
539 
WWUS73 KMPX 270833
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
333 AM CDT Sun May 27 2018


MNZ051>059-061-063>070-073>078-082>085-091>093-271700-
/O.EXA.KMPX.HT.Y.0001.180527T1800Z-180528T0100Z/
Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-Kandiyohi-
Meeker-Wright-Anoka-Washington-Yellow Medicine-Renville-McLeod-
Sibley-Carver-Scott-Dakota-Redwood-Brown-Nicollet-Le Sueur-Rice-
Goodhue-Watonwan-Blue Earth-Waseca-Steele-Martin-Faribault-
Freeborn-
Including the cities of Elk River, Cambridge, Center City, 
Madison, Benson, Montevideo, Willmar, Litchfield, Monticello, 
Blaine, Stillwater, Granite Falls, Olivia, Hutchinson, Gaylord, 
Chaska, Shakopee, Hastings, Redwood Falls, New Ulm, St Peter, 
Le Sueur, Faribault, Red Wing, St James, Mankato, Waseca, 
Owatonna, Fairmont, Blue Earth, and Albert Lea
333 AM CDT Sun May 27 2018

...HEAT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM CDT
THIS EVENING...

The National Weather Service in Twin Cities/Chanhassen has issued
a Heat Advisory, which is in effect from 1 PM this afternoon to
8 PM CDT this evening. 

* TEMPERATURE...Heat index values will reach 95 to 100 degrees
  this afternoon. This will be exacerbated by relatively light 
  southerly winds of 5 to 15 mph, which will provide little 
  cooling relief.

* IMPACTS...Heat illnesses are possible for those active 
  outdoors or those susceptible to heat illnesses, such as 
  children and the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids...stay in an air-conditioned
room...stay out of the sun...and check up on relatives and
neighbors.

Take extra precautions...if you work or spend time outside. When 
possible...reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear light weight and loose fitting clothing when possible
and drink plenty of water.

To reduce risk during outdoor work...the occupational safety and 
health administration recommends scheduling frequent rest breaks 
in shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an 
emergency...call 9 1 1.

&&

$$

MNZ060-062-271700-
/O.CON.KMPX.HT.Y.0001.180527T1800Z-180528T0100Z/
Hennepin-Ramsey-
Including the cities of Minneapolis and St Paul
333 AM CDT Sun May 27 2018

...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
8 PM CDT THIS EVENING...

* TEMPERATURE...Heat index values will reach 95 to 100 degrees
  this afternoon. This will be exacerbated by relatively light
  southerly winds of 5 to 15 mph, which will provide little 
  cooling relief.

* IMPACTS...Heat illnesses are possible for those active 
  outdoors or those susceptible to heat illnesses, such as 
  children and the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids...stay in an air-conditioned
room...stay out of the sun...and check up on relatives and
neighbors.

 Take extra precautions...if you work or spend time outside.
When possible...reschedule strenuous activities to early morning
or evening. Know the signs and symptoms of heat exhaustion and
heat stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

 To reduce risk during outdoor work...the occupational safety
and health administration recommends scheduling frequent rest
breaks in shaded or air conditioned environments. Anyone overcome
by heat should be moved to a cool and shaded location.   Heat
stroke is an emergency...call 9 1 1.

&&

$$
047 
WWUS73 KMPX 271742
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
1242 PM CDT Sun May 27 2018

MNZ051>070-073>078-082>085-091>093-280100-
/O.CON.KMPX.HT.Y.0001.180527T1800Z-180528T0100Z/
Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-Kandiyohi-
Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-Yellow Medicine-
Renville-McLeod-Sibley-Carver-Scott-Dakota-Redwood-Brown-Nicollet-
Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-Waseca-Steele-Martin-
Faribault-Freeborn-
Including the cities of Elk River, Cambridge, Center City, 
Madison, Benson, Montevideo, Willmar, Litchfield, Monticello, 
Minneapolis, Blaine, St Paul, Stillwater, Granite Falls, Olivia, 
Hutchinson, Gaylord, Chaska, Shakopee, Hastings, Redwood Falls, 
New Ulm, St Peter, Le Sueur, Faribault, Red Wing, St James, 
Mankato, Waseca, Owatonna, Fairmont, Blue Earth, and Albert Lea
1242 PM CDT Sun May 27 2018

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...

* TEMPERATURE...Clouds will clear out and heat index values will 
  reach 95 to 100 degrees by late this afternoon. This will be 
  exacerbated by relatively light southerly winds of 5 to 15 mph, 
  which will provide little cooling relief. 

* IMPACTS...Heat illnesses are possible for those active 
  outdoors or those susceptible to heat illnesses, such as 
  children and the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids...stay in an air-conditioned
room...stay out of the sun...and check up on relatives and
neighbors.

Take extra precautions...if you work or spend time outside. When
possible...reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

To reduce risk during outdoor work...the occupational safety and
health administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by
heat should be moved to a cool and shaded location. Heat stroke
is an emergency...call 9 1 1.

&&

$$

Borghoff
958 
WWUS73 KMPX 272052
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
352 PM CDT Sun May 27 2018

MNZ051>059-064>067-073>078-082>085-091>093-280500-
/O.NEW.KMPX.HT.Y.0002.180528T1800Z-180529T0000Z/
/O.CON.KMPX.HT.Y.0001.000000T0000Z-180528T0100Z/
Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-Kandiyohi-
Meeker-Wright-Yellow Medicine-Renville-McLeod-Sibley-Redwood-
Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-Waseca-
Steele-Martin-Faribault-Freeborn-
Including the cities of Elk River, Cambridge, Center City, 
Madison, Benson, Montevideo, Willmar, Litchfield, Monticello, 
Granite Falls, Olivia, Hutchinson, Gaylord, Redwood Falls, 
New Ulm, St Peter, Le Sueur, Faribault, Red Wing, St James, 
Mankato, Waseca, Owatonna, Fairmont, Blue Earth, and Albert Lea
352 PM CDT Sun May 27 2018

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 1 PM TO 7 PM CDT MONDAY...

The National Weather Service in Twin Cities/Chanhassen has issued
a Heat Advisory, which is in effect from 1 PM to 7 PM CDT Monday.

* TEMPERATURE...Highs Monday will likely reach the upper 90s. 
  Humidity is expected to be higher than today, resulting in peak 
  heat indices around 100 by afternoon. 

* IMPACTS...Heat illnesses are possible for those active outdoors
  or those susceptible to heat illnesses, such as children and 
  the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids...stay in an air-conditioned
room...stay out of the sun...and check up on relatives and
neighbors.

Take extra precautions...if you work or spend time outside. When
possible...reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

To reduce risk during outdoor work...the occupational safety and
health administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by
heat should be moved to a cool and shaded location. Heat stroke
is an emergency...call 9 1 1.

&&

$$

WIZ023-024-280500-
/O.NEW.KMPX.HT.Y.0002.180528T1800Z-180529T0000Z/
St. Croix-Pierce-
Including the cities of Hudson, River Falls, and Prescott
352 PM CDT Sun May 27 2018

...HEAT ADVISORY IN EFFECT FROM 1 PM TO 7 PM CDT MONDAY...

The National Weather Service in Twin Cities/Chanhassen has issued
a Heat Advisory, which is in effect from 1 PM to 7 PM CDT Monday.

* TEMPERATURE...Highs Monday will likely reach the mid 90s.
  Humidity is expected to be higher than today, resulting in peak
  heat indices in the upper 90s by afternoon.

* IMPACTS...Heat illnesses are possible for those active outdoors
  or those susceptible to heat illnesses, such as children and 
  the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids...stay in an air-conditioned
room...stay out of the sun...and check up on relatives and
neighbors.

Take extra precautions...if you work or spend time outside. When 
possible...reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear light weight and loose fitting clothing when possible
and drink plenty of water.

To reduce risk during outdoor work...the occupational safety and 
health administration recommends scheduling frequent rest breaks 
in shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an 
emergency...call 9 1 1.

&&

$$

MNZ060>063-068>070-280500-
/O.NEW.KMPX.EH.A.0001.180528T1800Z-180529T0000Z/
/O.EXT.KMPX.HT.Y.0001.000000T0000Z-180528T1800Z/
Hennepin-Anoka-Ramsey-Washington-Carver-Scott-Dakota-
Including the cities of Minneapolis, Blaine, St Paul, Stillwater,
Chaska, Shakopee, and Hastings
352 PM CDT Sun May 27 2018

...HEAT ADVISORY NOW IN EFFECT UNTIL 1 PM CDT MONDAY...
...EXCESSIVE HEAT WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
MONDAY EVENING...

The National Weather Service in Twin Cities/Chanhassen has issued
an Excessive Heat Watch, which is in effect from Monday afternoon
through Monday evening. 

* TEMPERATURE...Mid 90s are still expected late this afternoon.
  Temperatures will only cool into the low to mid 70s tonight,
  especially downtown, so the Heat Advisory has been extended
  through the night. Highs Monday will likely reach the upper 90s.
  The humidity will also be higher than today, resulting in peak 
  heat indices possibly in the lower 100s by afternoon. 

* IMPACTS...Heat illnesses are possible for those active 
  outdoors or those susceptible to heat illnesses, such as 
  children and the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids...stay in an air-conditioned
room...stay out of the sun...and check up on relatives and
neighbors.

Take extra precautions...if you work or spend time outside. When
possible...reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

To reduce risk during outdoor work...the occupational safety and
health administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by
heat should be moved to a cool and shaded location. Heat stroke
is an emergency...call 9 1 1.

An Excessive Heat Watch means that a prolonged period of hot
temperatures is expected. The combination of hot temperatures and
high humidity will combine to create a dangerous situation in
which heat illnesses are possible. Drink plenty of fluids...stay
in an air-conditioned room...stay out of the sun...and check up
on relatives and neighbors.

&&

$$

Borghoff
306 
WWUS73 KMPX 280122
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
822 PM CDT Sun May 27 2018

MNZ051>059-064>067-073>078-082>085-091>093-280930-
/O.EXP.KMPX.HT.Y.0001.000000T0000Z-180528T0100Z/
/O.CON.KMPX.HT.Y.0002.180528T1800Z-180529T0000Z/
Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-Kandiyohi-
Meeker-Wright-Yellow Medicine-Renville-McLeod-Sibley-Redwood-
Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-Waseca-
Steele-Martin-Faribault-Freeborn-
Including the cities of Elk River, Cambridge, Center City, 
Madison, Benson, Montevideo, Willmar, Litchfield, Monticello, 
Granite Falls, Olivia, Hutchinson, Gaylord, Redwood Falls, 
New Ulm, St Peter, Le Sueur, Faribault, Red Wing, St James, 
Mankato, Waseca, Owatonna, Fairmont, Blue Earth, and Albert Lea
822 PM CDT Sun May 27 2018

...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM TO 7 PM CDT MONDAY...

* TEMPERATURE...Highs Monday will likely reach the upper 90s. 
  Humidity is expected to be higher than today, resulting in 
  peak heat indices around 100 by afternoon. 

* IMPACTS...Heat illnesses are possible for those active 
  outdoors or those susceptible to heat illnesses, such as 
  children and the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids...stay in an air-conditioned
room...stay out of the sun...and check up on relatives and
neighbors.

   Take extra precautions...if you work or spend time outside.
When possible...reschedule strenuous activities to early morning
or evening. Know the signs and symptoms of heat exhaustion and
heat stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

   To reduce risk during outdoor work...the occupational safety
and health administration recommends scheduling frequent rest
breaks in shaded or air conditioned environments. Anyone overcome
by heat should be moved to a cool and shaded location.   Heat
stroke is an emergency...call 9 1 1.

&&

$$

MNZ060>063-068>070-280930-
/O.CON.KMPX.HT.Y.0001.000000T0000Z-180528T1800Z/
/O.CON.KMPX.EH.A.0001.180528T1800Z-180529T0000Z/
Hennepin-Anoka-Ramsey-Washington-Carver-Scott-Dakota-
Including the cities of Minneapolis, Blaine, St Paul, Stillwater,
Chaska, Shakopee, and Hastings
822 PM CDT Sun May 27 2018

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT MONDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON
THROUGH MONDAY EVENING...

* TEMPERATURE...Mid 90s are still expected late this afternoon. 
  Temperatures will only cool into the low to mid 70s tonight, 
  especially downtown, so the Heat Advisory has been extended 
  through the night. Highs Monday will likely reach the upper 
  90s. The humidity will also be higher than today, resulting in 
  peak heat indices possibly in the lower 100s by afternoon. 

* IMPACTS...Heat illnesses are possible for those active 
  outdoors or those susceptible to heat illnesses, such as 
  children and the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids...stay in an air-conditioned
room...stay out of the sun...and check up on relatives and
neighbors.

Take extra precautions...if you work or spend time outside. When
possible...reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

To reduce risk during outdoor work...the occupational safety and
health administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by
heat should be moved to a cool and shaded location. Heat stroke
is an emergency...call 9 1 1.

An Excessive Heat Watch means that a prolonged period of hot
temperatures is expected. The combination of hot temperatures and
high humidity will combine to create a dangerous situation in
which heat illnesses are possible. Drink plenty of fluids...stay
in an air-conditioned room...stay out of the sun...and check up
on relatives and neighbors.

&&

$$

WIZ023-024-280930-
/O.CON.KMPX.HT.Y.0002.180528T1800Z-180529T0000Z/
St. Croix-Pierce-
Including the cities of Hudson, River Falls, and Prescott
822 PM CDT Sun May 27 2018

...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM TO 7 PM CDT MONDAY...

* TEMPERATURE...Highs Monday will likely reach the mid 90s. 
  Humidity is expected to be higher than today, resulting in 
  peak heat indices in the upper 90s by afternoon. 

* IMPACTS...Heat illnesses are possible for those active 
  outdoors or those susceptible to heat illnesses, such as 
  children and the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids...stay in an air-conditioned
room...stay out of the sun...and check up on relatives and
neighbors.

Take extra precautions...if you work or spend time outside. When
possible...reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

To reduce risk during outdoor work...the occupational safety and
health administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by
heat should be moved to a cool and shaded location. Heat stroke
is an emergency...call 9 1 1.

&&

$$

jrb
628 
WWUS73 KMPX 280850
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
350 AM CDT Mon May 28 2018


MNZ060>063-068>070-281700-
/O.UPG.KMPX.EH.A.0001.180528T1800Z-180529T0000Z/
/O.NEW.KMPX.EH.W.0001.180528T1800Z-180529T0000Z/
/O.CON.KMPX.HT.Y.0001.000000T0000Z-180528T1800Z/
Hennepin-Anoka-Ramsey-Washington-Carver-Scott-Dakota-
Including the cities of Minneapolis, Blaine, St Paul, Stillwater,
Chaska, Shakopee, and Hastings
350 AM CDT Mon May 28 2018

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...
...EXCESSIVE HEAT WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO
7 PM CDT THIS EVENING...

The National Weather Service in Twin Cities/Chanhassen has issued
an Excessive Heat Warning, which is in effect from 1 PM this
afternoon to 7 PM CDT this evening. The Excessive Heat Watch is
no longer in effect. 

* TEMPERATURE...Low temperatures in the 70s provided little relief
  from the heat overnight, and will be followed by forecast highs
  today in the upper 90s. Increasing humidity will result in peak
  heat indices of 100 to 105 degrees during the afternoon. 

* IMPACTS...Heat illnesses are possible for those active 
  outdoors or those susceptible to heat illnesses, such as 
  children and the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take extra precautions...if you work or spend time outside. When
possible...reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

An Excessive Heat Warning means that a prolonged period of 
dangerously hot temperatures will occur. The combination of hot 
temperatures and high humidity will combine to create a dangerous 
situation in which heat illnesses are likely. Drink plenty of 
fluids...stay in an air-conditioned room...stay out of the sun... 
and check up on relatives and neighbors.

&&

$$

WIZ025>028-281700-
/O.EXA.KMPX.HT.Y.0002.180528T1800Z-180529T0000Z/
Dunn-Pepin-Chippewa-Eau Claire-
Including the cities of Menomonie, Durand, Chippewa Falls, 
and Eau Claire
350 AM CDT Mon May 28 2018

...HEAT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM CDT
THIS EVENING...

The National Weather Service in Twin Cities/Chanhassen has issued
a Heat Advisory, which is in effect from 1 PM this afternoon to
7 PM CDT this evening. 

* TEMPERATURE...Highs today will likely reach the upper 90s.
  Humidity is expected to be higher today, resulting in peak heat
  indices around 100 by afternoon. 

* IMPACTS...Heat illnesses are possible for those active 
  outdoors or those susceptible to heat illnesses, such as 
  children and the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids...stay in an air-conditioned
room...stay out of the sun...and check up on relatives and
neighbors.

  Take extra precautions...if you work or spend time outside.
When possible...reschedule strenuous activities to early morning
or evening. Know the signs and symptoms of heat exhaustion and
heat stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

&&

$$

MNZ051>059-064>067-073>078-082>085-091>093-WIZ023-024-281700-
/O.CON.KMPX.HT.Y.0002.180528T1800Z-180529T0000Z/
Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-Kandiyohi-
Meeker-Wright-Yellow Medicine-Renville-McLeod-Sibley-Redwood-
Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-Waseca-
Steele-Martin-Faribault-Freeborn-St. Croix-Pierce-
Including the cities of Elk River, Cambridge, Center City, 
Madison, Benson, Montevideo, Willmar, Litchfield, Monticello, 
Granite Falls, Olivia, Hutchinson, Gaylord, Redwood Falls, 
New Ulm, St Peter, Le Sueur, Faribault, Red Wing, St James, 
Mankato, Waseca, Owatonna, Fairmont, Blue Earth, Albert Lea, 
Hudson, River Falls, and Prescott
350 AM CDT Mon May 28 2018

...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
7 PM CDT THIS EVENING...

* TEMPERATURE...Highs today will likely reach the upper 90s.
  Humidity is expected to be higher today, resulting in peak heat
  indices around 100 by afternoon. 

* IMPACTS...Heat illnesses are possible for those active 
  outdoors or those susceptible to heat illnesses, such as 
  children and the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids...stay in an air-conditioned
room...stay out of the sun...and check up on relatives and
neighbors.

  Take extra precautions...if you work or spend time outside.
When possible...reschedule strenuous activities to early morning
or evening. Know the signs and symptoms of heat exhaustion and
heat stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

&&

$$
824 
WWUS73 KMPX 281548
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
1048 AM CDT Mon May 28 2018

MNZ060>063-068>070-290000-
/O.CON.KMPX.EH.W.0001.180528T1800Z-180529T0000Z/
/O.CON.KMPX.HT.Y.0001.000000T0000Z-180528T1800Z/
Hennepin-Anoka-Ramsey-Washington-Carver-Scott-Dakota-
Including the cities of Minneapolis, Blaine, St Paul, Stillwater,
Chaska, Shakopee, and Hastings
1048 AM CDT Mon May 28 2018

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* TEMPERATURE...Highs this afternoon will likely reach the upper
  90s. Humidity levels are expected to be higher, resulting in 
  peak heat indices of 100 to 105 in the inner core of the Twin 
  Cities metro area this afternoon.
  
* IMPACTS...Heat illnesses are possible for those active 
  outdoors or those susceptible to heat illnesses, such as 
  children and the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take extra precautions...if you work or spend time outside. When
possible...reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to create a dangerous
situation in which heat illnesses are likely. Drink plenty of
fluids...stay in an air-conditioned room...stay out of the sun...
and check up on relatives and neighbors.

&&

$$

MNZ051>059-064>067-073>078-082>085-091>093-WIZ023>028-290000-
/O.CON.KMPX.HT.Y.0002.180528T1800Z-180529T0000Z/
Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-Kandiyohi-
Meeker-Wright-Yellow Medicine-Renville-McLeod-Sibley-Redwood-
Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-Waseca-
Steele-Martin-Faribault-Freeborn-St. Croix-Pierce-Dunn-Pepin-
Eau Claire-
Including the cities of Elk River, Cambridge, Center City, 
Madison, Benson, Montevideo, Willmar, Litchfield, Monticello, 
Granite Falls, Olivia, Hutchinson, Gaylord, Redwood Falls, 
New Ulm, St Peter, Le Sueur, Faribault, Red Wing, St James, 
Mankato, Waseca, Owatonna, Fairmont, Blue Earth, Albert Lea, 
Hudson, River Falls, Prescott, Menomonie, Durand, Chippewa Falls,
and Eau Claire
1048 AM CDT Mon May 28 2018

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* TEMPERATURE...Highs this afternoon will likely reach the upper
  90s. Humidity levels are expected to be higher, resulting in
  peak heat indices around 100 during the afternoon. 

* IMPACTS...Heat illnesses are possible for those active 
  outdoors or those susceptible to heat illnesses, such as 
  children and the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids...stay in an air-conditioned
room...stay out of the sun...and check up on relatives and
neighbors.

 Take extra precautions...if you work or spend time outside.
When possible...reschedule strenuous activities to early morning
or evening. Know the signs and symptoms of heat exhaustion and
heat stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

&&

$$
076 
WWUS73 KMPX 281812
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
112 PM CDT Mon May 28 2018

MNZ060>063-068>070-290000-
/O.EXP.KMPX.HT.Y.0001.000000T0000Z-180528T1800Z/
/O.CON.KMPX.EH.W.0001.000000T0000Z-180529T0000Z/
Hennepin-Anoka-Ramsey-Washington-Carver-Scott-Dakota-
Including the cities of Minneapolis, Blaine, St Paul, Stillwater,
Chaska, Shakopee, and Hastings
112 PM CDT Mon May 28 2018

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* TEMPERATURE...Highs this afternoon will likely reach the upper 
  90s. Humidity levels are expected to be higher, resulting in 
  peak heat indices of 100 to 105 in the inner core of the Twin 
  Cities metro area this afternoon. 

* IMPACTS...Heat illnesses are possible for those active 
  outdoors or those susceptible to heat illnesses, such as 
  children and the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Excessive Heat Warning means that a prolonged period of 
dangerously hot temperatures will occur. The combination of hot 
temperatures and high humidity will combine to create a dangerous 
situation in which heat illnesses are likely. Drink plenty of 
fluids...stay in an air-conditioned room...stay out of the sun... 
and check up on relatives and neighbors.

Young children and pets should never be left unattended in 
vehicles under any circumstances. This is especially true during 
warm or hot weather when car interiors can reach lethal 
temperatures in a matter of minutes.

&&

$$

MNZ051>059-064>067-073>078-082>085-091>093-WIZ023>028-290000-
/O.CON.KMPX.HT.Y.0002.000000T0000Z-180529T0000Z/
Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-Kandiyohi-
Meeker-Wright-Yellow Medicine-Renville-McLeod-Sibley-Redwood-
Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-Waseca-
Steele-Martin-Faribault-Freeborn-St. Croix-Pierce-Dunn-Pepin-
Eau Claire-
Including the cities of Elk River, Cambridge, Center City, 
Madison, Benson, Montevideo, Willmar, Litchfield, Monticello, 
Granite Falls, Olivia, Hutchinson, Gaylord, Redwood Falls, 
New Ulm, St Peter, Le Sueur, Faribault, Red Wing, St James, 
Mankato, Waseca, Owatonna, Fairmont, Blue Earth, Albert Lea, 
Hudson, River Falls, Prescott, Menomonie, Durand, Chippewa Falls,
and Eau Claire
112 PM CDT Mon May 28 2018

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* TEMPERATURE...Highs this afternoon will likely reach the upper 
  90s. Humidity levels are expected to be higher, resulting in 
  peak heat indices around 100 during the afternoon. 

* IMPACTS...Heat illnesses are possible for those active 
  outdoors or those susceptible to heat illnesses, such as 
  children and the elderly. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take extra precautions...if you work or spend time outside. When 
possible...reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear light weight and loose fitting clothing when possible
and drink plenty of water.

&&

$$

What forecasters said that day

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

NWS Twin Cities, MN wrote its last area forecast discussion before this heat advisory went out at May 26, 12:16 PM CDT, 2 hours 8 minutes earlier.

Area forecast discussion, May 26, 12:16 PM CDT, 2 hours 8 minutes before
Area Forecast Discussion
National Weather Service Twin Cities/Chanhassen MN
1216 PM CDT Sat May 26 2018

.UPDATE...
Issued at 1209 PM CDT Sat May 26 2018

Updated to include 18z aviation discussion below.

&&

.SHORT TERM...(Today and tonight)
Issued at 405 AM CDT Sat May 26 2018

Upper level ridging begins building into the region today, but a
shortwave trough will continue traveling eastward through Southern
Saskatchewan with weak vorticity over Northern WI. As a result,
the NAM, HRRR, and other hi-res models develop convection this
afternoon in the Eastern WI counties of the CWA. MUCAPE values are
forecast to reach near 1500 J/kg and effective bulk wind shear
should reach near 30 kts. So, there is a possibility for some
isolated strong updrafts and a few strong wind gusts and hail.
Otherwise, the bulk of the thunderstorm activity should occur to
the east and north of the CWA.

Another concern for the Memorial Day Weekend is the unseasonably
warm temperatures. Mostly clear skies and diurnal heating will
allow mixing through about 700 mb by late Saturday afternoon. This
will allow temperatures to reach the lower to mid 90s with the
warmest temperatures expected on the Buffalo Ridge. A few record
high temperatures for May 26th may be broken. The record highs
are: 96 at MSP (1978), 93 at STC (1914), and 93 at EAU (1914).
Relative humidity will be lower than Friday as values are expected
to drop into the upper 20s to lower 30s with dewpoints in the
50s. Thus, heat index values are not expected to differ very much
from the temperatures. Westerly winds will be near 5-10 kts during
peak heating. Then, temperatures overnight into Sunday are
anticipated to fall into the 60s with the TC metro being closer to
70 degrees.

.LONG TERM...(Sunday through Friday)
Issued at 405 AM CDT Sat May 26 2018

The heat builds on Sunday, with relief not expected until the last
half of the upcoming week when shower and thunderstorm chances
also return.

The omega block will be fully in place on Sunday, with mid/upper
ridging reaching its peak. At daybreak, there looks to be the
potential for nocturnally-driven convection over the Dakotas to be
knocking on the doorstep of western MN, per NSSL-WRF and NAMnest
solutions. Have included a small area of 20-30 POPS over west
central MN, but may need to expand this area spatially if the
signal proves to be consistent. H85 temps look to moderate to
around +22C on Sunday afternoon. Other than a few cumulus clouds,
ample sunshine will combine with southerly winds and mixing to
700-750mb. Model guidance has come in a bit warmer than previous
runs, thus giving more credence to the potential for highs from
90-100 degrees. Dewpoints will also be up around 60 degrees, which
will push heat indices close to advisory criteria. Will continue
to monitor trends, but a heat advisory is a strong possibility for
Sunday.

Still have reservations about an entirely dry forecast for Sunday,
given progged 700mb temperatures are only around +10C, which is
borderline as far as a CAP is concerned. There won't be much in
the way of a triggering mechanism provided any ripples of energy
topping the ridge stay north, but wouldn't be surprised if
instability proves sufficient to yield pop-up, isolated activity.

Sunday night into Monday the low over the Great Basin begins to
progress eastward. Warm/moist air advection ahead of this feature
noses into central MN/WI on Sunday night. Have included 20-30 POPS
primarily along/north of Interstate 94, with any activity expected
to wane Monday morning.

More widespread shower and thunderstorm activity is expected late
Monday night through Wednesday as the aforementioned low ejects
across the area while weakening. After that, we look to be dry
overall to finish the week, with more tolerable highs in the mid
70s to mid 80s.

&&

.AVIATION...(For the 18Z TAFS through 18Z Sunday afternoon)
Issued at 1209 PM CDT Sat May 26 2018

VFR conditions are forecast for this period. Aside from a few
passing high clouds this afternoon, SKC conditions are expected.
Westerly winds will increase to near 10 kts this afternoon then
become light overnight into Sunday then pick up from the
southeast to south near 10 kts.

KMSP... No concerns.

/OUTLOOK FOR KMSP/
MON...VFR. Wind S 5 kts.
TUE-WED...Mainly VFR. Chc -SHRA/-TSRA. Wind SE 5-10 kts.
THU...VFR. Wind NW 5-10 kts.

&&

.MPX WATCHES/WARNINGS/ADVISORIES...
WI...None.
MN...None.
&&

UPDATE...JPC
SHORT TERM...AMK
LONG TERM...LS
AVIATION...JPC
Hazardous weather outlook, May 26, 12:32 PM CDT, 1 hour 52 minutes before
Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
1232 PM CDT Sat May 26 2018

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
271100-
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns-
Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-
Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota-
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-Polk-Barron-Rusk-
St. Croix-Pierce-Dunn-Pepin-Eau Claire-
1232 PM CDT Sat May 26 2018

This Hazardous Weather Outlook is for portions of central and
southern Minnesota...and west central Wisconsin.

.DAY ONE...This Afternoon and Tonight

High temperatures and heat indices will warm into the 90s this
afternoon. The very warm temperatures and elevated humidity will
combine to create a heightened risk for heat illnesses, especially
for those who are active or working outdoors.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Elevated heat and humidity will continue through Memorial Day.
High temperatures and peak heat indices will be in the mid to
upper 90s Sunday and Monday. The very warm temperatures and high
humidity will combine to create a heightened risk for heat
illnesses, especially for those who are active or working
outdoors.

Scattered to numerous thunderstorms will be possible Tuesday
through Wednesday. At this time, severe storms are not expected.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotter activation will not be needed.

Nearby

Heat Advisories in Minnesota, 2018Every heat advisory in 2018

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.