Wind Advisory 5, NWS Des Moines, IA

224 
WWUS73 KDMX 171017
NPWDMX

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
517 AM CDT Wed Jun 17 2026

IAZ092>097-171800-
/O.CON.KDMX.WI.Y.0005.260617T1200Z-260617T1800Z/
Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis-
Including the cities of Humeston, Lamoni, Seymour, Allerton,
Lenox, Leon, Centerville, Mount Ayr, Bloomfield, Corydon,
Bedford, and New Market
517 AM CDT Wed Jun 17 2026

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

* WHAT...Southwest winds 25 to 35 mph with gusts over 45 mph 
  expected.

* WHERE...Appanoose, Decatur, Ringgold, Wayne, Davis, and Taylor 
  Counties.

* WHEN...Until 1 PM CDT this afternoon.

* 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.

&&

$$

IAZ004-015-023-033-034-044-172030-
/O.CON.KDMX.WI.Y.0005.260617T1800Z-260618T0200Z/
Emmet-Palo Alto-Pocahontas-Sac-Calhoun-Crawford-
Including the cities of Rolfe, Wall Lake, Lake City, Pomeroy,
Denison, Gilmore City, Sac City, Pocahontas, Schaller, Manson,
Rockwell City, Estherville, Laurens, Emmetsburg, Lake View,
Early, Odebolt, and Fonda
517 AM CDT Wed Jun 17 2026

...WIND ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM 
CDT THIS EVENING...

* WHAT...Northwest winds 25 to 35 mph with gusts over 45 mph 
  expected.

* WHERE...Emmet, Palo Alto, Pocahontas, Calhoun, Crawford, and Sac 
  Counties.

* WHEN...From 1 PM this afternoon to 9 PM CDT 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.

&&

$$

Lee

886 
WWUS73 KDMX 171551
NPWDMX

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
1051 AM CDT Wed Jun 17 2026

IAZ092>097-171800-
/O.CON.KDMX.WI.Y.0005.000000T0000Z-260617T1800Z/
Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis-
Including the cities of Humeston, Lamoni, Seymour, Allerton,
Lenox, Leon, Centerville, Mount Ayr, Bloomfield, Corydon,
Bedford, and New Market
1051 AM CDT Wed Jun 17 2026

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

* WHAT...Southwest winds 20 to 30 mph with gusts near 45 mph 
  expected.

* WHERE...Appanoose, Decatur, Ringgold, Wayne, Davis, and Taylor 
  Counties.

* WHEN...Until 1 PM CDT this afternoon.

* 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.

&&

$$

IAZ004-015-023-033-034-044-180200-
/O.CON.KDMX.WI.Y.0005.260617T1800Z-260618T0200Z/
Emmet-Palo Alto-Pocahontas-Sac-Calhoun-Crawford-
Including the cities of Rolfe, Wall Lake, Lake City, Pomeroy,
Denison, Gilmore City, Sac City, Pocahontas, Schaller, Manson,
Rockwell City, Estherville, Laurens, Emmetsburg, Lake View,
Early, Odebolt, and Fonda
1051 AM CDT Wed Jun 17 2026

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING...

* WHAT...West northwest winds 25 to 35 mph with gusts over 45 mph 
  expected.

* WHERE...Emmet, Palo Alto, Pocahontas, Calhoun, Crawford, and Sac 
  Counties.

* WHEN...Until 9 PM CDT 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.

&&

$$

Lee

393 
WWUS73 KDMX 171959
NPWDMX

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
259 PM CDT Wed Jun 17 2026

IAZ004-015-023-033-034-044-180200-
/O.CON.KDMX.WI.Y.0005.000000T0000Z-260618T0200Z/
Emmet-Palo Alto-Pocahontas-Sac-Calhoun-Crawford-
Including the cities of Early, Rolfe, Lake City, Wall Lake,
Laurens, Sac City, Denison, Gilmore City, Fonda, Schaller, Lake
View, Manson, Emmetsburg, Pomeroy, Estherville, Rockwell City,
Pocahontas, and Odebolt
259 PM CDT Wed Jun 17 2026

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 45 mph.

* WHERE...Emmet, Palo Alto, Pocahontas, Calhoun, Crawford, and Sac 
  Counties.

* WHEN...Until 9 PM CDT 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.

&&

$$

584 
WWUS73 KDMX 180057
NPWDMX

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
757 PM CDT Wed Jun 17 2026

IAZ004-015-023-033-034-044-180200-
/O.CAN.KDMX.WI.Y.0005.000000T0000Z-260618T0200Z/
Emmet-Palo Alto-Pocahontas-Sac-Calhoun-Crawford-
Including the cities of Rolfe, Estherville, Emmetsburg, Pomeroy,
Sac City, Laurens, Wall Lake, Schaller, Early, Lake City,
Rockwell City, Denison, Fonda, Pocahontas, Odebolt, Manson, Lake
View, and Gilmore City
757 PM CDT Wed Jun 17 2026

...WIND ADVISORY IS CANCELLED...

Wind speeds have diminished and thus the Advisory has been 
cancelled. Wind gusts up to 35-40 MPH will be possible at times 
through the evening.

$$

Hagenhoff

Area Forecast Discussion...CORRECTED
National Weather Service Des Moines IA
1050 PM CDT Tue Jun 16 2026

 ...Updated for the 06z Aviation Discussion...

.KEY MESSAGES...

- Strong to severe storms early Wednesday morning. Large hail
  and damaging wind gusts are the main hazards.

- Severe storms redevelop Wednesday afternoon across eastern
  half of Iowa. Very large hail, damaging winds and a few
  tornadoes are possible.

- Strong winds behind the storms on Wednesday gusting 35-40 mph
  at times.

&&

.SHORT TERM /THROUGH THURSDAY/...
Issued at 241 PM CDT Tue Jun 16 2026

Breezy northwest winds this afternoon thanks to an enhanced pressure
gradient across central to eastern Iowa and dry air allowing for
deeper mixing. Upstream water vapor imagery shows the beginnings of
development across the northern plans that will drop across the
midwest early tomorrow morning. Overnight a strong 65+ kt low level
jet will set across the plains with the nose reaching far
northwestern Iowa. While showers may swing across the area late this
evening, the low level jet looks to ramp up around 06z and
intensification will occur early Wednesday morning on the nose of
the jet in northern Iowa the sliding southeast as the jet is shunted
into southeast Iowa. The upper level jet is also very strong (125+
kts) and perpendicular to the LLJ, creating an area of enhanced
lift. Expect that strengthening storms will develop across northern
Iowa around 10z as the strong LLJ brings strong moisture and theta e
advection into the area. Large, looping hodographs have unheard of
levels of SRH, mainly owed to the very high shear. When accounting
for the effective layer inflow that the storms may actually ingest,
250-300 m2/s2 is likely still available and more than enough
for strongly rotating updrafts. By 10z mid level lapse rates are
at 8 C/km, 0-6 km shear is 50-60 kts, and a pool of 1500+ J/kg
MUCAPE reaches to northern Iowa. Storms are expected to move
along this gradient into eastern and southeast Iowa through the
morning hours. All of the ingredients are in place for strong
rotating updrafts sustaining large hail growth. While storms are
largely elevated, wind is also a concern, especially with dry
sub-cloud layers that may have wet hail falling through,
enhancing the evaporative cooling and pulling strong gusts to
the surface. As such, a wind driven hail threat is possible.
This activity should push east of the area by around 15z.

After a midday lull, redevelopment is expected on the boundary
in southeast Iowa in the afternoon in the 18-20z window. This
will quickly race to the east and clear the area by 00z. The
environment south is deeply unstable with 3000+ J/kg MUCAPE and
60 kts of 0-6 km shear. Hodographs are straight which may reduce,
but not completely eliminate, the tornado threat in Iowa. The
other area to watch in the afternoon is northern Iowa with a
surface low skimming southern Minnesota and creating a tornado
risk in the vicinity of the triple point. The environment is
less unstable there, but may still result in a brief window for
sever storms in northeast Iowa.

Outside of the convective risk, Wednesday will also be quite breezy.
Winds in southern Iowa will gust 35+ mph behind the morning
convection. Then in the afternoon to early evening northern Iowa
gets breezy with 35-40 mph gusts behind the storms. In both cases
the area for strongest gusts is outside of the area (south and west
in the morning or west in the afternoon), so have not issued a wind
advisory at this time.

&&

.LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/...
Issued at 241 PM CDT Tue Jun 16 2026

Thursday and Friday will be mild and quiet with highs in the upper
70s to low 80s. A quick moving, weak embedded shortwave may move
across the area on Thursday and bring a quick shot for precipitation,
otherwise conditions will remain dry. Attention will then turn
to the deepening low pressure that will move into the area late
Saturday into Sunday. This is expected to bring another round of
storms, some severe, to Iowa. Details on this system will be
better determined in the days ahead.

&&

.AVIATION /06Z TAFS THROUGH 06Z THURSDAY/...
Issued at 1037 PM CDT Tue Jun 16 2026

VFR TAFs remain on tap for the 06Z issuance; however, light
rain showers are moving across KMCW but zero impact is being
reported in the obs. Winds have diminished and are starting to
shift to the south; however, a low-level jet will begin to ramp
up overnight, LLWS is forecast to develop around 09Z with all
sites experiencing LLWS through 12Z before turbulent mixing
negates LLWS. Showers and thunderstorms are expected to develop
along a boundary through the overnight and dive southeast across
northern Iowa. KFOD, KMCW and KALO will start to see an
increase in shower and storm chances mainly after 09Z. KDSM and
KOTM have seen increases shower and storm chances with the
latest guidance and opted to go prevailing showers and storms
mainly after 12Z. Overnight/morning convection is forecast to
wane after 16Z with a lull in activity before redevelopment
occurs late in the forecast period. PROB30 was added to KFOD and
KMCW for afternoon convective redevelopment. Strong winds are
progged to persist through the period. Sustained winds from 15 to
20 knots with wind gusts ranging between 25 to 30 knots are likely
especially at KFOD, KMCW, KDSM and KOTM after 15Z and persisting
through the remainder of the TAF period. Any convection that
develops Wednesday afternoon will diminish with sunset and winds
will start to diminish as well.

&&

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

&&

SHORT TERM...Hagenhoff
LONG TERM...Hagenhoff
AVIATION...Vorst

Hazardous Weather Outlook
National Weather Service Des Moines IA
315 PM CDT Tue Jun 16 2026

IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-
081>086-092>097-172015-
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-
315 PM CDT Tue Jun 16 2026

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...This afternoon and tonight

Thunderstorms are expected late tonight (early Wednesday
morning) in north central Iowa moving into eastern Iowa through
the morning Wednesday. These storms may become severe with large
hail and damaging winds the main threats.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Thunderstorms may redevelop Wednesday afternoon across the eastern
half of Iowa. Very large hail, damaging winds, and a few tornadoes
are possible.

Strong winds are expected on Wednesday ahead of the storms in
southern Iowa and behind the storms in northern to portions of
central and eastern Iowa with gusts to 30-40 mph or more at
times.

.SPOTTER INFORMATION STATEMENT...

Any storm reports Wednesday are appreciated.