Wind Advisory 2, NWS Des Moines, IA

Audubon County, IA, Black Hawk County, IA, Boone County, IA, Bremer County, IA, Butler County, IA, Calhoun County, IA, Carroll County, IA, Cerro Gordo County, IA, Crawford County, IA, Dallas County, IA, Emmet County, IA, Franklin County, IA, Greene County, IA, Grundy County, IA, Guthrie County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Humboldt County, IA, Jasper County, IA, Kossuth County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Palo Alto County, IA, Pocahontas County, IA, Polk County, IA, Poweshiek County, IA, Sac County, IA, Story County, IA, Tama County, IA, Warren County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA

010 
WWUS73 KDMX 280215
NPWDMX

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
815 PM CST Thu Feb 27 2025

IAZ004>007-015>017-023>028-033>039-044>050-057>062-073>075-281215-
/O.CON.KDMX.WI.Y.0002.250228T1600Z-250301T0000Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-
Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene-
Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-
Poweshiek-Warren-Marion-Mahaska-
Including the cities of Manson, Exira, Carlisle, Ackley, Norwalk,
Clarksville, Newton, Schaller, Denison, Audubon, Waterloo, Lake
City, Webster City, Fort Dodge, Algona, Humboldt, Iowa Falls,
Cedar Falls, Eagle Grove, Northwood, Mason City, Belmond,
Waverly, Grundy Center, Dysart, Rockwell City, Dike, Knoxville,
Dumont, Clear Lake, Clarion, Pomeroy, Rolfe, Toledo, Manly, Adel,
Lake Mills, Reinbeck, Lake View, Casey, Emmetsburg, Grinnell,
Marshalltown, Odebolt, Wall Lake, Garner, Laurens, Hampton,
Panora, Wellsburg, Pella, Guthrie Center, Gladbrook, Estherville,
Shell Rock, Conrad, Aplington, Bayard, Britt, Indianola,
Pocahontas, Perry, Waukee, Carroll, Sac City, Parkersburg,
Gilmore City, Traer, Eldora, Oskaloosa, Tama, Jefferson, Boone,
Des Moines, Greene, Ames, Early, Fonda, Allison, Forest City, and
Kanawha
815 PM CST Thu Feb 27 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM TO 6 PM CST FRIDAY...

* WHAT...Northwest winds 25 to 35 mph with widespread gusts 40 to 45 
  mph, and gusts 50 mph or more possible north.

* WHERE...Much of central and northern Iowa.

* WHEN...From 10 AM to 6 PM CST Friday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...Dry conditions have also created critical to 
  near critical fire weather conditions. A Red Flag Warning is also 
  in effect for most of the area along and south of the Highway 3 
  corridor. Please see that product for more details.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution. Open burning is discouraged.

Secure outdoor objects.

&&

$$

Small

352 
WWUS73 KDMX 281105
NPWDMX

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
505 AM CST Fri Feb 28 2025

IAZ004>007-015>017-023>028-033>039-044>050-057>062-073>075-282115-
/O.CON.KDMX.WI.Y.0002.250228T1600Z-250301T0000Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-
Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene-
Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-
Poweshiek-Warren-Marion-Mahaska-
Including the cities of Dysart, Dumont, Guthrie Center, Laurens,
Cedar Falls, Reinbeck, Grinnell, Newton, Wellsburg, Emmetsburg,
Allison, Boone, Lake Mills, Humboldt, Ackley, Lake View, Belmond,
Perry, Shell Rock, Toledo, Rockwell City, Hampton, Gilmore City,
Iowa Falls, Gladbrook, Fort Dodge, Carlisle, Mason City,
Pocahontas, Eagle Grove, Clarion, Casey, Waverly, Britt, Eldora,
Northwood, Clarksville, Carroll, Ames, Garner, Jefferson, Greene,
Exira, Clear Lake, Pomeroy, Dike, Schaller, Norwalk, Denison,
Audubon, Aplington, Early, Conrad, Marshalltown, Waterloo, Tama,
Panora, Waukee, Forest City, Manly, Oskaloosa, Sac City, Lake
City, Manson, Adel, Estherville, Wall Lake, Grundy Center, Des
Moines, Pella, Rolfe, Algona, Knoxville, Traer, Kanawha,
Parkersburg, Webster City, Indianola, Fonda, Odebolt, and Bayard
505 AM CST Fri Feb 28 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM 
CST THIS EVENING...

* WHAT...Northwest winds 25 to 35 mph with widespread gusts 40 to 45 
  mph, and gusts 50 mph or more possible north.

* WHERE...Much of central and northern Iowa.

* WHEN...From 10 AM this morning to 6 PM CST this evening.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...Dry conditions have also created critical to 
  near critical fire weather conditions. A Red Flag Warning is also 
  in effect for most of the area along and south of the Highway 3 
  corridor. Please see that product for more details.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

Secure outdoor objects.

&&

$$

Hagenhoff

312 
WWUS73 KDMX 281702
NPWDMX

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
1102 AM CST Fri Feb 28 2025

IAZ004>007-015>017-023>028-033>039-044>050-057>062-073>075-010000-
/O.CON.KDMX.WI.Y.0002.000000T0000Z-250301T0000Z/
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-
Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene-
Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-
Poweshiek-Warren-Marion-Mahaska-
Including the cities of Shell Rock, Ames, Tama, Wellsburg, Exira,
Knoxville, Toledo, Pella, Britt, Guthrie Center, Pomeroy, Boone,
Garner, Manson, Emmetsburg, Webster City, Belmond, Aplington,
Bayard, Schaller, Odebolt, Early, Clarksville, Conrad,
Pocahontas, Gladbrook, Adel, Fonda, Reinbeck, Lake City, Casey,
Denison, Newton, Dike, Lake Mills, Grundy Center, Lake View, Wall
Lake, Fort Dodge, Algona, Indianola, Laurens, Norwalk, Rockwell
City, Waterloo, Sac City, Waukee, Traer, Gilmore City, Manly,
Iowa Falls, Hampton, Humboldt, Northwood, Grinnell, Waverly,
Audubon, Perry, Parkersburg, Carroll, Mason City, Cedar Falls,
Dumont, Carlisle, Oskaloosa, Des Moines, Forest City, Allison,
Panora, Estherville, Clear Lake, Greene, Dysart, Clarion, Eldora,
Rolfe, Ackley, Marshalltown, Kanawha, Jefferson, and Eagle Grove
1102 AM CST Fri Feb 28 2025

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING...

* WHAT...Northwest winds 25 to 35 mph with widespread gusts 40 to 45 
  mph, and gusts 50 mph or more possible north.

* WHERE...Portions of central, north central, northeast, northwest, 
  south central, and west central Iowa.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...Dry conditions have also created critical to 
  near critical fire weather conditions. A Red Flag Warning is also 
  in effect for most of the area along and south of the Highway 3 
  corridor. Please see that product for more details.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution. Open burning is discouraged.

Secure outdoor objects.

&&

$$

Donavon

788 
WWUS73 KDMX 282012
NPWDMX

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
212 PM CST Fri Feb 28 2025

IAZ004-005-015>017-024>028-036>039-048>050-010000-
/O.UPG.KDMX.WI.Y.0002.000000T0000Z-250301T0000Z/
/O.NEW.KDMX.HW.W.0001.250228T2012Z-250301T0000Z/
Emmet-Kossuth-Palo Alto-Hancock-Cerro Gordo-Humboldt-Wright-
Franklin-Butler-Bremer-Hamilton-Hardin-Grundy-Black Hawk-Story-
Marshall-Tama-
Including the cities of Waverly, Iowa Falls, Eagle Grove,
Gladbrook, Wellsburg, Algona, Shell Rock, Emmetsburg,
Clarksville, Ackley, Dysart, Traer, Reinbeck, Webster City, Ames,
Britt, Waterloo, Toledo, Parkersburg, Humboldt, Dumont,
Estherville, Dike, Aplington, Cedar Falls, Marshalltown, Mason
City, Clear Lake, Belmond, Kanawha, Hampton, Greene, Eldora,
Clarion, Grundy Center, Conrad, Allison, Tama, and Garner
212 PM CST Fri Feb 28 2025

...HIGH WIND WARNING IN EFFECT UNTIL 6 PM CST THIS EVENING...

* WHAT...Northwest winds 40 to 45 mph with gusts up to 60 mph.

* WHERE...Portions of central, north central, northeast, and 
  northwest Iowa.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be difficult, 
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain in the lower levels of your home during the windstorm, and 
avoid windows. Watch for falling debris and tree limbs. Use caution 
if you must drive.

&&

$$

IAZ006-007-023-033>035-044>047-057>062-073>075-010000-
/O.CON.KDMX.WI.Y.0002.000000T0000Z-250301T0000Z/
Winnebago-Worth-Pocahontas-Sac-Calhoun-Webster-Crawford-Carroll-
Greene-Boone-Audubon-Guthrie-Dallas-Polk-Jasper-Poweshiek-Warren-
Marion-Mahaska-
Including the cities of Manly, Waukee, Gilmore City, Adel,
Newton, Fonda, Carroll, Audubon, Carlisle, Grinnell, Forest City,
Guthrie Center, Northwood, Oskaloosa, Lake City, Pocahontas,
Perry, Denison, Knoxville, Sac City, Pomeroy, Manson, Laurens,
Boone, Panora, Casey, Lake View, Exira, Norwalk, Des Moines,
Early, Fort Dodge, Rockwell City, Lake Mills, Schaller,
Indianola, Bayard, Rolfe, Wall Lake, Jefferson, Odebolt, and
Pella
212 PM CST Fri Feb 28 2025

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING...

* WHAT...Northwest winds 25 to 30 mph with gusts up to 55 mph.

* WHERE...Portions of central, north central, northwest, south 
  central, and west central Iowa.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

Secure outdoor objects.

&&

$$

REV

552 
WWUS73 KDMX 282357
NPWDMX

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
557 PM CST Fri Feb 28 2025

IAZ004-005-015>017-024>028-036>039-048>050-010100-
/O.EXP.KDMX.HW.W.0001.000000T0000Z-250301T0000Z/
Emmet-Kossuth-Palo Alto-Hancock-Cerro Gordo-Humboldt-Wright-
Franklin-Butler-Bremer-Hamilton-Hardin-Grundy-Black Hawk-Story-
Marshall-Tama-
Including the cities of Britt, Parkersburg, Grundy Center,
Gladbrook, Clarksville, Dysart, Webster City, Clarion, Algona,
Ackley, Dumont, Mason City, Conrad, Estherville, Cedar Falls,
Eagle Grove, Iowa Falls, Toledo, Kanawha, Belmond, Reinbeck,
Waverly, Wellsburg, Shell Rock, Humboldt, Eldora, Hampton,
Aplington, Marshalltown, Allison, Tama, Emmetsburg, Clear Lake,
Ames, Greene, Dike, Traer, Waterloo, and Garner
557 PM CST Fri Feb 28 2025

...HIGH WIND WARNING WILL EXPIRE AT 6 PM CST THIS EVENING...

The strongest winds and wind gusts have ended. The wind will 
continue to be gusty from the northwest with gusts up to around 40 
MPH for a few more hours before decreasing further overnight.

$$

IAZ006-007-023-033>035-044>047-057>062-073>075-010100-
/O.EXP.KDMX.WI.Y.0002.000000T0000Z-250301T0000Z/
Winnebago-Worth-Pocahontas-Sac-Calhoun-Webster-Crawford-Carroll-
Greene-Boone-Audubon-Guthrie-Dallas-Polk-Jasper-Poweshiek-Warren-
Marion-Mahaska-
Including the cities of Guthrie Center, Manly, Rolfe, Grinnell,
Pocahontas, Carroll, Fort Dodge, Schaller, Early, Denison,
Panora, Fonda, Jefferson, Adel, Norwalk, Indianola, Lake City,
Exira, Wall Lake, Rockwell City, Newton, Carlisle, Des Moines,
Northwood, Waukee, Pomeroy, Manson, Casey, Odebolt, Sac City,
Forest City, Laurens, Lake Mills, Audubon, Oskaloosa, Lake View,
Pella, Bayard, Perry, Gilmore City, Boone, and Knoxville
557 PM CST Fri Feb 28 2025

...WIND ADVISORY WILL EXPIRE AT 6 PM CST THIS EVENING...

Wind speeds have diminished and thus the advisory will be allowed to 
expire. Wind gusts up to 40 MPH will be possible at times through 
the rest of the evening.

$$

Hahn

Area Forecast Discussion
National Weather Service Des Moines IA
1145 AM CST Thu Feb 27 2025

 ...Updated for the 18z Aviation Discussion...

.KEY MESSAGES...

- Breezy and mild again today with plenty of sunshine. Elevated
  fire weather conditions once again.

- Windy Friday with wind headlines likely needed. Near critical
  to critical fire weather conditions expected areawide due to
  strong winds, lowering relative humidity, and cured fuels.

- Dry and cooler this weekend, with a more active pattern next
 week with rain likely, possibly mixing or changing to snow
 mid/late week.

&&

.DISCUSSION...
Issued at 255 AM CST Thu Feb 27 2025

Today and Tonight...

A fairly amplified upper air pattern noted over the CONUS with
ridging over the intermountain west with upper troughing over
the Great Lakes region. As a result, much of the upper Midwest
will remain in a dry n/nwly flow regime today and tonight.
Typically, this could result in a cool-ish pattern, however the
deep, dry adiabatic mixed layer in the PBL will extend to about
850mb which will allow temperatures to again climb well above
seasonal averages, with highs in 50s expected again. This deeper
mixed profile will also support breezy conditions again today,
with NW winds of 15 to 25 mph common, along with a few gusts
over 30 mph. These dry and breezy conditions will again support
high to very high grassland fire danger, and we recently have
seen an uptick in grass fires per dry fuels. Plenty of sunshine
expected, with clear to partly cloudy skies. Mostly clear and
mild conditions expected tonight, with winds aloft ramping up
after midnight, with breezes continuing through the overnight.
Lows will remain mild, only falling into the 30s.

Friday and Friday Night...

A stronger and deepening upper shortwave will track from ND
into the Great Lakes area on Friday. The strongest synoptic
scale QG forcing and lift, and resultant precipitation shield
should remain well north and east of our forecast area on
Friday. However, very strong W/NWLY winds south of the
deepening 850mb low will increase over IA with 850mb winds at or
above 50kts likely through Friday. Winds will begin to increase
in earnest by mid-morning Friday as mixing depth increases. An
accompanying cold front will then drop swd through the region
after 18z, resulting in a secondary push of wind per increasing
subsidence and modest CAA. Very windy conditions will occur on
Friday with a high probability (>70% chance) of sustained winds
exceeding 30 mph, and wind gusts exceeding 40 mph. The various
GEFS and ECMWF ensemble guidance, along with NBM percentile data
is also suggesting portions of the the CWA north of US 20 could
very well see wind gust values exceed 50 mph, especially in the
typical wind prone areas /e.g. KEST and KMCW/. While confidence
for wind headlines is relatively high for Friday, per
coordination with neighboring WFOs we decided to hold off
issuance on this shift to better fine tune the exact area and
proper headline.

Temperatures on Friday are also expected to trend upward as the
thermal ridge pushes through the area ahead of the cold front. Highs
are expected to rise into the lower 50s far north to the lower 60s
south. This combination of seasonally warm and windy conditions
will also lead to fire weather concerns once again. The tricky
part of the fire weather equation is the RH forecast. Model
soundings show clouds increasing in the north along and ahead of
the cold front /with even a few high based showers possible/,
and this could impact the depth of vertical mixing, along with
extent of heating. Currently we have MinRH values dropping to
the mid 40s north, to around 30% in the south. These values are
close to, but still above our Red Flag Warning criteria /RH <
25%/. If it becomes more evident that RH values will fall closer
to criteria, fire wx headlines will also need to be considered.
Winds will gradually diminish Friday night, but colder
conditions will return, albeit closer to seasonal avgs. Lows on
Friday night will fall back into the teens and 20s.

This weekend into early next week...

Dry and cooler conditions are on tap for Saturday with highs in the
30s to lower 40s  A weak upper low should pass well to the south of
the area on Sunday and Monday, but as winds turn around to more
southwesterly, modest WAA will again lead to warming trend.
There is a low chance for a few showers on Monday per the weak
WAA/isentropic lift regime. The 00Z deterministic models and
ensembles are in decent agreement showing a much stronger system
impacting much of the Midwest on Tuesday through Wednesday
night. The latest guidance suggests about a 30-60% chance of
rainfall amounts > 0.50" - potentially one of the wetter systems
in some time. Depending on the track of the system, there is
potential that the precip type may transition to snow, or a
rain/snow mix in the deformation zone on the backside of the
system. Plenty of time to fine tune details, but the system
bears watching next week.

&&

.AVIATION /18Z TAFS THROUGH 18Z FRIDAY/...
Issued at 1145 AM CST Thu Feb 27 2025

Main concern will be winds aft 12z and wind shear aft 06z and
lasting through around 12-15z. Rather deep mixing is anticipated
from 15z Friday through 00z Saturday (next forecast period),
with some gusts occasionally reaching 40 to 45kts 18z through
00z Saturday - just a heads up. Trough passage around 12z
signals a wind shift to west followed by a northwest wind aft
15z through remainder of period. /rev

&&

.DMX WATCHES/WARNINGS/ADVISORIES...
None.

&&

DISCUSSION...Fowle
AVIATION...REV

Hazardous Weather Outlook
National Weather Service Des Moines IA
446 AM CST Thu Feb 27 2025

IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-
081>086-092>097-281100-
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-
Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene-
Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-
Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union-
Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne-
Appanoose-Davis-
446 AM CST Thu Feb 27 2025

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Today and tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Windy conditions are expected Friday with gusts 40 to 50 mph,
particularly in northern Iowa during the afternoon. These winds
will likely lead to elevated fire weather conditions on Friday as
well.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

Hagenhoff