SPC Convective Outlook Day 1

See Product Description

567
ACUS01 KWNS 290100
SWODY1
SPC AC 290058

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0758 PM CDT Sat Mar 28 2020

Valid 290100Z - 291200Z

...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM A PORTION
OF THE TENNESSEE AND OHIO VALLEYS INTO THE MIDWEST REGION...

...SUMMARY...
Scattered severe storms posing a threat for tornadoes, damaging wind
and large hail will continue this evening into the overnight from a
portion of the Tennessee and Ohio Valleys into the Midwest region.

...Midwest region...

The warm sector is in the process of being pinched off across
northeast IA suggesting the tornado threat in this region should end
by 02Z. However...additional storms are developing farther south
across northwestern and west central IL and will move eastward into
central and eastern IL where the 00Z RAOB from Lincoln indicated
around 800 J/kg MLCAPE, large low-level hodographs and 80 kt
effective bulk shear. This environment will continue to support
organized storms incuding supercells capable of producing tornadoes,
a couple of which could be strong this evening.

...Tennessee and Ohio Valleys...

A secondary branch of the low-level jet is forecast to strengthen
tonight from middle TN into the OH Valley in association with a
strong upper jet moving through the base of a progressive trough
situated across the Midwest. This will contribute to modest
low-level theta-e advection with MUCAPE from 500 to 1000 J/kg as
well as large hodographs with 300-400 m2/s2 0-1 km storm-relative
helicity within an otherwise strongly sheared environment. The band
of scattered storms developing along the warm conveyor belt from
southwest IN into western TN and northwest MS will likely maintain
embedded organized structures including supercells and bowing
segments capable of tornadoes, damaging wind and large hail as they
develop eastward into the overnight.

..Dial.. 03/29/2020

$$

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.

Hazardous Weather Outlook

See Product Description

973
FLUS43 KLOT 281956
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
256 PM CDT Sat Mar 28 2020

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-292000-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
256 PM CDT Sat Mar 28 2020 /356 PM EDT Sat Mar 28 2020/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Significant Thunderstorm Risk...with an associated:
Significant Tornado risk.
Significant hail risk...up to tennis ball size.
Elevated damaging wind risk...up to 60 mph.
Limited Flooding Risk.

DISCUSSION...

An outbreak of severe thunderstorms remains possible this afternoon
and evening, with the potential for very large hail and tornadoes,
including some threat of significant tornadoes. While the threat
of severe weather will exist across the entire outlook area, the
greatest threat for tornadoes will be around and southwest of a
line from Dixon to Dwight to Watseka. Thunderstorm movement will
be rapidly to the northeast.

Late tonight, strong southwest to west winds will develop, with
gusts to 45 mph expected by morning.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday...
Elevated Non Thunderstorm Wind Risk.

DISCUSSION:

Strong west to southwest winds gusting up to 45 mph are expected
Sunday.

.SPOTTER INFORMATION STATEMENT...

Any reports of severe weather will be greatly appreciated this
afternoon and evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the northeast at 50 to 60 mph.

$$

LMZ740>745-292000-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
256 PM CDT Sat Mar 28 2020

This Hazardous Weather Outlook is for portions of the Illinois
nearshore waters of Lake Michigan and the Indiana nearshore
waters of Lake Michigan.

.DAY ONE...Tonight.

Weather hazards expected...

Gale force winds and or very hazardous waves.
Significant Thunderstorm Risk...with an associated:
Significant hail risk...up to half dollar size.
Elevated thunderstorm wind gust risk...up to 60 mph.
Elevated Fog Risk.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday...
Gale force winds and or very hazardous waves are likely.
Friday...
Hazardous conditions for small craft are likely.

$$

Kluber

Visit us at http://weather.gov/chicago

Follow us on Facebook, Twitter, and Youtube at:
www.facebook.com/nwschicago
www.twitter.com/nwschicago
www.youtube.com/nwschicago

The "Hazardous Weather Outlook" contains information regarding any and all weather expected to occur within the region that could be hazardous to travel, life or property. This is one of our most highly recommended products to check on a daily basis, and it some cases multiple times per day should significant weather be expected to affect DuPage county.

SPC Convective Outlook Day 2

See Product Description

572
ACUS02 KWNS 290535
SWODY2
SPC AC 290534

Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1234 AM CDT Sun Mar 29 2020

Valid 301200Z - 311200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR NORTHERN
LOUISIANA INTO WEST-CENTRAL MISSISSIPPI...

...SUMMARY...
Isolated to scattered severe thunderstorms are possible across parts
of the lower Mississippi Valley during the evening and overnight.

...Synopsis...
A mid-level disturbance will move from AZ/NM eastward during the
period and reach the OK/AR border by early Tuesday morning. A
frontal zone initially in the northern Gulf of Mexico will advance
northward through parts of TX during the day as a surface low
develops over west-central TX by early evening. An inverted surface
trough will extend northwest through the TX Panhandle into the
central High Plains during the day. After dark, a cold front will
sweep east across much of TX as the surface low develops eastward
into MS at daybreak Tuesday.

...Southern Great Plains into the lower MS Valley...
Strengthening southerly low-level flow and increasing moisture from
the northwest Gulf will spread north through TX during the day.
Considerable cloud cover will likely limit destabilization across
east TX within a moist/marginally unstable warm advection zone.
Farther west over the TX Panhandle, isolated storms are forecast by
late afternoon within a northwest-southeast corridor. Steepening
tropospheric lapse rates will support a few strong to severe
thunderstorms potentially capable of a hail/wind risk. This
diurnally driven activity will likely weaken by sunset. Farther
south over northwest and into central TX, uncertainty remains
whether a few storms can manage to form during the late afternoon.
Wind profiles would support updraft rotation but a paucity of storm
coverage implied by model convective schemes, casts doubt whether
more than a storm or two will develop.

During the evening into the overnight, increasing mid-level height
falls will overspread east TX into the lower MS Valley. Storm
coverage will likely increase concurrent with a strengthening warm
conveyor and mid-level DCVA. Forecast soundings show a relatively
deep/moist boundary layer with strong deep shear. The more vigorous
storms may organize into a few small clusters/bands with an
accompanying damaging wind hazard being the primary concern near and
south of the warm front. This activity will likely spread east
across the MS River late Monday night into early Tuesday morning.

..Smith.. 03/29/2020

$$

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

602
ACUS03 KWNS 280718
SWODY3
SPC AC 280717

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0217 AM CDT Sat Mar 28 2020

Valid 301200Z - 311200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR NORTHEAST
TEXAS...SOUTHERN ARKANSAS AND NORTHERN LOUISIANA...AND INTO
WEST-CENTRAL MISSISSIPPI...

...SUMMARY...
Isolated to scattered severe thunderstorms are possible across parts
of the southern Great Plains during the late afternoon and evening
Monday, with the risk shifting into the Arklatex and lower
Mississippi Valley during the evening and overnight.

...Synopsis...
A mid-level shortwave trough will move from the Desert Southwest and
into the southern High Plains by the late afternoon, before moving
into the lower MS Valley by daybreak Tuesday. A residual frontal
zone from the weekend draped along the Gulf Coast will advance
northward across parts of TX as a surface low develops in the
southern High Plains during the day. The surface low is forecast to
develop eastward from northwest TX and along the Red River before
reaching southern AR by early Tuesday morning. A dryline/Pacific
cold front will sweep east across TX primarily after dark.

...Southern Great Plains into the lower MS Valley...
As cyclogenesis occurs over the southern High Plains during the day,
strengthening low-level southeasterlies will advect moisture
north/northwestward into northwest TX/western OK. Although moisture
will likely remain relatively stunted (surface dewpoints in the 50s
deg F), cooling mid-level temperatures resulting in steepening
700-500mb lapse rates, and strong heating near/west of the arcing
frontal zone and dryline, will contribute to weak destabilization.
Veering/strengthening wind profiles with height will support updraft
rotation and a risk for large hail with the stronger updrafts.
Elevated, marginally severe storms are possible farther east to the
north of the warm front over OK and AR during the evening and
overnight hours, as large-scale ascent spreads east.

Farther south in TX, isolated to scattered thunderstorms are
possible mainly during the late afternoon/early evening. There is
still uncertainty regarding storm initiation (e.g., dryline, warm
conveyor farther east). A hail/wind risk would likely accompany the
stronger storms, but yet-to-be-resolved mesoscale details preclude
higher severe probabilities. Model run-to-run continuity lends
confidence in greater storm coverage after dark from parts of north
TX east into MS as a LLJ strengthens. Forecast soundings suggest
organized storm structures including bowing segments and supercells
are possible with the activity Monday night. Hail and wind appear
to be the primary risks but a tornado risk could develop as
low-level shear intensifies late.

..Smith.. 03/28/2020

$$

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.

Special Weather Statement

See Product Description

No active Special Weather Statement for DuPage County.

The "Special Weather Statement" details notable weather either occuring or expected to occur, but does not necessarily have to be considered severe or hazardous. This is a supplementary product issued by the National Weather Service to help describe noteworthy weather. It's terminology should be reasonably easy to understand by the general public.

Watch County Notification

See Product Description

No active Watch County Notification for DuPage County.

The "Watch County Notification" will contain updates regarding active severe weather watches that pertain to DuPage county. This may be for a newly issued watch, or the cancelation of an existing watch. Severe weather watches come in two forms; Severe Thunderstorm and Tornado, and it should be noted that a Severe Thunderstorm Watch does NOT rule out the possibility of tornadoes occuring. It generally means that the tornado threat is minimal while damaging winds and hail are still likely. See our "Watch, Warning, and Advisory Criteria" for more detailed information on the differences and critera for watches, warnings and advisory for all forms of weather.

Winter Weather Statement

See Product Description

No active Winter Weather Statement for DuPage County.

The "Winter Weather Statement" is a product aimed at the general public that will discuss impacts caused by winter weather. This may include information about watches, warnings and advisories as well as details about impactful winter weather that may not warrant the issuance of a watch, warning or advisory.

Severe Weather Statement

See Product Description

No active Severe Weather Statement for DuPage County.

The "Severe Weather Statement" is a product aimed at the general public that will discuss impacts caused by severe thunderstorms. This may include information about watches and warnings as well as details about impactful "sub-severe" weather that may not warrant the issuance of a watch or warning which sometimes may come when a watch or warning has been canceled.

Non-Precip Statement

See Product Description

889
WWUS73 KLOT 281943
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
243 PM CDT Sat Mar 28 2020

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-290345-
/O.NEW.KLOT.WI.Y.0004.200329T0900Z-200330T0000Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, Lake in the Hills, McHenry, Woodstock, Cary, Waukegan,
Buffalo Grove, North Chicago, Highland Park, Mundelein, Gurnee,
Round Lake Beach, Rochelle, Oregon, Mount Morris, Byron, Polo,
Dixon, DeKalb, Sycamore, Aurora, Elgin, Naperville, Wheaton,
Downers Grove, Elmhurst, Lombard, Carol Stream, Addison, Ottawa,
Streator, Peru, La Salle, Mendota, Marseilles, Oswego,
Boulder Hill, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Onarga, Paxton, Gibson City, Evanston,
Des Plaines, Schaumburg, Palatine, Northbrook, Chicago, Cicero,
Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest, Lemont,
Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, Wilmington, Crete, Peotone,
Beecher, Gary, Hammond, East Chicago, Merrillville, Portage,
Valparaiso, Chesterton, Roselawn, Kentland, Morocco, Goodland,
Brook, Rensselaer, DeMotte, Fowler, Otterbein, Oxford,
and Boswell
243 PM CDT Sat Mar 28 2020 /343 PM EDT Sat Mar 28 2020/

...WIND ADVISORY IN EFFECT FROM 4 AM CDT /5 AM EDT/ TO 7 PM CDT
/8 PM EDT/ SUNDAY...

The National Weather Service in Chicago has issued a Wind
Advisory, which is in effect from 4 AM CDT /5 AM EDT/ to 7 PM CDT
/8 PM EDT/ Sunday.

* TIMING...late tonight through Sunday afternoon.

* WINDS...Southwest winds 20 to 30 mph with gusts to 50 mph.

* IMPACTS...Unsecured tents would be susceptible to collapse with
winds of these speeds. Gusty winds could blow around unsecured
objects. Tree limbs could be blown down and a few power outages
may result. In addition, driving will be difficult for high
profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 mph and/or wind
gusts of 45 mph are expected. Winds this strong can make driving
difficult...especially for high profile vehicles. Use extra
caution.

&&

$$

KMD

The "Non-Precip Statement" is aimed at the general public and will detail notable weather that is either occuring or expected to occur, but does not relate to any form of precipitation. These would include but are not limited to high winds, reduced visibility or extreme temperatures.

Active Weather Warnings

Tornado Warnings

No active Tornado Warnings.

Severe Thunderstorm Warnings

No active Severe Thunderstorm Warnings.

Flood Warnings

No active Flood Warnings.

General Tornado/Severe Weather Safety

1. A Tornado or Severe Thunderstorm Warning is issued when it has been reported, or when it has been detected via National Weather Service radar. It is to be interpreted that this event is occuring and is expected to affect all warned areas. Those within the warning need to take action immediately.
2. If under a warning remain calm and if it is necessary to seek shelter. Students and Employees should head to their nearest designated shelter area. The route to these shelter areas are posted in all rooms on campus and signs are placed in the hallways to direct you to the nearest shelter area. Review these instructions and be familiar with where your nearest shelter is. Stay indoors, away from windows and large unsupported ceilings. Faculty should account for their students and Supervisors should account for their areas employees.
3. If outside, take shelter in the nearest building.
4. After the storm has passed, dial Police at 911 to report any injuries or damage to buildings.
5. If the building is severely damaged, evacuate the building as soon as possible after the storm has passed.