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Current Conditions

A message from COD Meteorology

Current Local Radar

Temperature
76°F
Feels Like:
76°F
Dew Point	Humidity
45°F	33%

Mostly Cloudy

Wind Strength
Light	Moderate	Strong
Northeast at 7 mph

Local Graphical Forecast (Updated: 05/28/23 10:11 am)

Sunday (5/28)
Day	Night


High	Low
78	56

Monday (5/29)
Day	Night


High	Low
82	58

Tuesday (5/30)
Day	Night


High	Low
87	64

Wednesday (5/31)
Day	Night


High	Low
89	66

Thursday (6/1)
Day	Night


High	Low
89	64

Friday (6/2)
Day	Night


High	Low
87	63

Saturday (6/3)
Day	Night


High	Low
84

Detailed Text Forecast (Updated: 05/28/23 10:11 am)

Sunday: Mostly sunny, with a high near 78. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

Sunday Night: Partly cloudy, with a low around 56. Northeast wind 5 to 10 mph.

Monday: Mostly sunny, with a high near 82. East wind 5 to 10 mph.

Monday Night: Mostly clear, with a low around 58. East northeast wind around 5 mph, with gusts as high as 10 mph.

Tuesday: Sunny, with a high near 87. East wind 5 to 10 mph.

Tuesday Night: Partly cloudy, with a low around 64.

Wednesday: Sunny, with a high near 89.

Wednesday Night: Mostly clear, with a low around 66.

Thursday: Sunny, with a high near 89.

Thursday Night: Mostly clear, with a low around 64.

Friday: Sunny, with a high near 87.

Friday Night: Partly cloudy, with a low around 63.

Saturday: Sunny, with a high near 84.

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Copyright © 2023

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Phone: 630-942-2590
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SPC Convective Outlook Day 1

See Product Description

101
ACUS01 KWNS 281631
SWODY1
SPC AC 281629

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1129 AM CDT Sun May 28 2023

Valid 281630Z - 291200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
WESTERN KANSAS...THE TEXAS PANHANDLE...AND WESTERN OKLAHOMA...

...SUMMARY...
Isolated strong to severe thunderstorms are possible across western
portions of the Great Plains this afternoon and evening. Hail and
severe gusts will be the main hazards.

...Central High Plains...
Relatively weak westerly mid-level winds are present today
throughout the Plains states, with a trough moving across NE/KS. A
band of slightly stronger flow aloft wraps around the south side of
the trough across parts of southern KS/northern OK (25-30 knots at
500mb). This region is likely to see widely scattered afternoon
thunderstorm development - focused near several weak surface
boundaries and instability gradients. CAM guidance is diverse in
the details of these storms, but there may be sufficient vertical
shear for isolated organized multicell or perhaps supercell storms
capable of large hail and damaging winds for a few hours.

...Dakotas to Texas...
Surrounding the SLGT risk area, scattered thunderstorms are expected
this afternoon and evening across much of the Plains region from the
Dakotas to west Texas. It is likely that small areas within this
corridor will see occasional strong to severe storms capable of
gusty winds and hail. However, a combination of weak forcing
mechanisms and only marginally favorable environment result in
considerable uncertainty of timing/placement details. Therefore
will cover region with a broad MRGL risk.

...Eastern NC...
A well defined surface low is currently just west of Cape Fear.
Visible satellite imagery shows clearing skies in the northeast
quadrant of the low, where dewpoints in the low 70s will yield at
least marginal CAPE values later today. However, water vapor
imagery shows considerable dry mid-level air wrapping into the
system, and forecast soundings show slow warming of the 800-600mb
layer. This should tend to suppress robust convective development
today.

..Hart/Weinman.. 05/28/2023

$$

The "Convective Outlooks" issued by SPC can be thought of as a detailed discussion of the Severe Thunderstorm threat and it's associated risks nationwide. Risk levels range from Marginal to Slight, Enhanced, Moderate, and High and are issued based on the likelihood of 3 major severe weather threats; the risk of tornadoes, damaging winds, and hail. These discussions are often heavily laced meteorological terminology that may be difficult to understand without a background in the field. However understanding these discussions shouldn't be thought of as necessary. Instead, should DuPage county fall under one of these threat levels for severe weather, the response should be to have a heightened level of awareness about the deveoloping weather. Keep an eye on the "Watch County Notification" for any active severe weather watches issued for DuPage county; the "Hazardous Weather Outlook" and "Severe Weather Statement" can also be helpful in explaining the developing risk; additionally, watch for "Active Weather Warnings" and keep an eye on our "Regional Satellite and Radar" products which can be viewed with active watches/warnings or lightning activity.

SPC Convective Outlook Day 2

See Product Description

608
ACUS02 KWNS 280543
SWODY2
SPC AC 280541

Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1241 AM CDT Sun May 28 2023

Valid 291200Z - 301200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS NORTHEAST
COLORADO...FAR NORTHWEST KANSAS...WESTERN NEBRASKA...MUCH OF SOUTH
DAKOTA AND PARTS OF SOUTHERN NORTH DAKOTA...

...SUMMARY...
Isolated strong to severe thunderstorms capable of producing hail
and gusty winds will be possible across parts of the central High
Plains into the Dakotas vicinity Monday afternoon and evening.

...Northern/Central Plains...

A weak mid/upper shortwave trough will develop east across the
northern Plains, while another weak shortwave trough moves across TX
on Monday. Deep-layer flow will remain modest across the Plains,
similar to the previous several days. A surface trough associated
with a low over Ontario will shift east across the Dakotas. The
surface trough will weaken with southward extent, with a rather
nondescript surface pattern over the central Plains. Southerly
low-level flow will maintain 50s to low 60s F dewpoints. With a lack
of strong mid/upper level forcing and limited surface features to
focus convection, scattered thunderstorms are expected to develop
across much of the Plains. Most of this activity will likely remain
disorganized and limited in intensity. However, areas of steep
midlevel lapse rates and modest vertical shear could support
sporadic strong storms. Some increased severe potential could
develop across parts of the Dakotas, southwest toward northeast CO,
beneath the influence of the weak upper shortwave trough, and along
the better defined surface trough. Stronger instability and
somewhat stronger vertical shear will overlap across this area, with
hail and strong gusts being the main hazards associated any
organized and longer-lived convection.

...South Texas vicinity...

Some guidance suggests an MCV from remnant overnight convection may
move across southern portions of Texas on Monday. Seasonal moisture
will be in place with mid/upper 60s F surface dewpoints forecast.
Lingering morning convection and cloud cover may limit stronger
heating, which may result in only weak diurnal destabilization.
Given uncertainty in the forecast of the MCV and concern over
instability amid generally weak vertical shear, severe probabilities
will not be included at this time, though may become necessary in
later outlooks depending on trends in forecast guidance and
observational trends.

..Leitman.. 05/28/2023

$$

The "Convective Outlooks" issued by SPC can be thought of as a detailed discussion of the Severe Thunderstorm threat and it's associated risks nationwide. Risk levels range from Marginal to Slight, Enhanced, Moderate, and High and are issued based on the likelihood of 3 major severe weather threats; the risk of tornadoes, damaging winds, and hail. These discussions are often heavily laced meteorological terminology that may be difficult to understand without a background in the field. However understanding these discussions shouldn't be thought of as necessary. Instead, should DuPage county fall under one of these threat levels for severe weather, the response should be to have a heightened level of awareness about the deveoloping weather. Keep an eye on the "Watch County Notification" for any active severe weather watches issued for DuPage county; the "Hazardous Weather Outlook" and "Severe Weather Statement" can also be helpful in explaining the developing risk; additionally, watch for "Active Weather Warnings" and keep an eye on our "Regional Satellite and Radar" products which can be viewed with active watches/warnings or lightning activity.

SPC Convective Outlook Day 3

See Product Description

734
ACUS03 KWNS 280730
SWODY3
SPC AC 280728

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0228 AM CDT Sun May 28 2023

Valid 301200Z - 311200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS
OF THE CENTRAL AND NORTHERN PLAINS...

...SUMMARY...
Isolated strong to severe thunderstorms capable of strong gusts and
sporadic hail will be possible across parts of the central into the
northern Plains vicinity on Tuesday.

...Central to Northern Plains vicinity...

An upper ridge centered over the southern Rockies/High Plains
vicinity will result in modest northwesterly mid/upper flow from NE
southward into OK/TX on Tuesday. Several midlevel vorticity maxima
are forecast to migrate through this northwesterly flow across parts
of the central Plains. Upper 50s to low 60s F surface dewpoints and
strong heating will support moderate instability (1500-2500 J/kg
MLCAPE) from eastern CO into KS, southward into the TX
Panhandle/northwest OK. Vertical shear will remain modest. However,
steep low-level lapse rates and a deep, well-mixed boundary layer
could support strong downdrafts capable of isolated strong/severe
gusts gusts. Some potential for forward propagating clusters is
possible toward evening as a low-level jet modestly increases and
some better organized structures may develop via storm
interactions/consolidating outflows.

Further north, a mid/upper shortwave trough over the eastern Dakotas
vicinity will weaken and lift northeast through the day. Vertical
shear will remain weak, but 60s F surface dewpoints amid strong
heating and steep midlevel lapse rates will support moderate
instability. Isolated strong to severe thunderstorms capable of
strong gusts and hail (in any longer lived updrafts) will be
possible during the afternoon/early evening.

..Leitman.. 05/28/2023

$$

The "Convective Outlooks" issued by SPC can be thought of as a detailed discussion of the Severe Thunderstorm threat and it's associated risks nationwide. Risk levels range from Marginal to Slight, Enhanced, Moderate, and High and are issued based on the likelihood of 3 major severe weather threats; the risk of tornadoes, damaging winds, and hail. These discussions are often heavily laced meteorological terminology that may be difficult to understand without a background in the field. However understanding these discussions shouldn't be thought of as necessary. Instead, should DuPage county fall under one of these threat levels for severe weather, the response should be to have a heightened level of awareness about the deveoloping weather. Keep an eye on the "Watch County Notification" for any active severe weather watches issued for DuPage county; the "Hazardous Weather Outlook" and "Severe Weather Statement" can also be helpful in explaining the developing risk; additionally, watch for "Active Weather Warnings" and keep an eye on our "Regional Satellite and Radar" products which can be viewed with active watches/warnings or lightning activity.