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COD Severe Weather Protocols

Storm Ready®: Status Message

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Current Conditions

College of DuPage SkyCam

Current Local Radar

Temperature
57°F
Feels Like:
57°F
Dew Point	Humidity
57°F	100%

Cloudy

Cloudy

Wind Strength
Light	Moderate	Strong
Northwest at 4 mph GUST: 5mph

Detailed Text Forecast

Due to staffing issues, forecast information from the COD Meteorology Department will be unavailable until further notice.

For detailed forecast information: See National Weather Service Forecast .

COD Weather Statistics

COD Weather Station Statistics

Time of Observation: 5/21/22 - 6:49:51 am
Latitude: 41.89°N
Longitude: -88.15°W
Elevation: 747.63 ft
Sunrise: 5:27am
Sunset: 8:10pm

Current Weather Conditions

Currently: Cloudy
Visibility: 9.73SM
Present Weather:
Cloud Cover: Cloudy

Temperature and Pressure

Air Temperature: 56.58°F
Dewpoint Temperature: 56.58°F
Wet-Bulb Temperature: 56.58°F
Humidity: 100.00%
Wind Chill:
Heat Index:
Pressure: 1011.85mb

Precipitation and Wind

Current Precipitation: N/A
Measured Liquid Precipitation: 0.05 Inches
Current Wind: From the NW at 3.87mph
Recent Peak Wind Gust: 4.82mph at 6:49am

Recent Station Records

Highest Temperature (Today): 59.51°F
Lowest Temperature (Today): 56.32°F

Highest Relative Humidity (Today): 100.00%
Lowest Relative Humidity (Today): 96.29%

Highest Pressure (Today): 1013.89mb
Lowest Pressure (Today): 1007.45mb

Measured Liquid Precip (Today): 0.05 Inches
Measured Liquid Precip (Month): 2.60 Inches
Measured Liquid Precip (Year): 5.07 Inches

Peak Wind Gust (Today): 11.61mph at 4:34am

SPC Convective Outlook Day 1

See Product Description

615
ACUS01 KWNS 210543
SWODY1
SPC AC 210541

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1241 AM CDT Sat May 21 2022

Valid 211200Z - 221200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM THE SOUTHERN
PLAINS THROUGH THE OHIO VALLEY INTO NORTHERN NEW ENGLAND...

...SUMMARY...
Scattered severe thunderstorms capable of producing both damaging
winds and large hail should develop Saturday afternoon and evening
from parts of the southern Plains into the mid Mississippi Valley,
Midwest, and Northeast.

...Discussion...

Large-scale pattern is not expected to change appreciably through
Saturday with a corridor of strong southwesterly flow at mid and
high levels forecast to extend from the central Rockies-mid MS
Valley-Great Lakes. Most of this stronger flow will remain along the
cool side of a notable cold front that will be oriented in a similar
fashion, but displaced 100-200 mi southeast of the jet.

Early this morning a weak short-wave trough was evident over UT.
This feature will shear northeast with minimal suppression to the
height field, except late in the period over northern latitudes. As
a result, warm-sector heating and weak low-level warm advection will
be the mechanisms instrumental in convective development. At 0530z,
scattered thunderstorms are gradually expanding north of the front
from northern OK-mid MS Valley-lower MI. Isentropic ascent will
continue to aid elevated convection through sunrise and hail remains
a threat with the most robust storms. With time, clusters may
ultimately evolve which could lead to locally enhanced convergence
for potentially strong/severe thunderstorms as the boundary layer
begins to warm by late morning. Models suggest a weak surface wave
may form near the Arklatex which could lead to more concentrated
storms just downstream over AR. With a weak LLJ focused across AR
into southern IL this may be a corridor where a tornado or two could
evolve if supercells form. At this time the scenario is not clear
enough to increase tornado probabilities across this region.

Otherwise, a seasonally moist PW plume will extend from TX-OH
Valley-northern New England. Scattered strong to potentially severe
thunderstorms are expected along this corridor where modest
shear/buoyancy will be noted. Isolated hail and locally strong winds
are the primary risks.

..Darrow/Moore.. 05/21/2022

$$

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

196
ACUS02 KWNS 210555
SWODY2
SPC AC 210553

Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1253 AM CDT Sat May 21 2022

Valid 221200Z - 231200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS CENTRAL
LOUISIANA...SOUTH-CENTRAL MISSISSIPPI AND WESTERN ALABAMA...

...SUMMARY...
Isolated severe storms with wind damage and hail will be possible
across parts of the Northeast on Sunday. A marginal severe threat
may also develop in parts of the lower Mississippi Valley and
central Gulf Coast states.

...Northeast/Mid-Atlantic...
West-southwest to southwesterly mid-level flow will be in place on
Sunday across much of the central and eastern U.S. A shortwave
trough will move northeastward across the lower Great Lakes. At the
surface, a cold front will advance southeastward across the
Northeast. Ahead of the front, surface dewpoints in the 60s F will
result in moderate destabilization by afternoon. Thunderstorms are
forecast to first develop near the front on the western edge of the
moist airmass in western and northern New York during the early
afternoon. The storms are expected to move quickly eastward from
eastern New York into western and northern New England by late
afternoon. Forecast soundings ahead of the front around 21Z from
central Maine southwestward into western New England have MLCAPE
peaking in the 2000 to 2500 J/kg range. 0-6 km shear is forecast to
be in 30 to 40 knot range along this corridor, with 0-3 km lapse
rates peaking near 8.0 C/km. This should be favorable for multicells
with wind damage potential. Supercells with isolated large hail will
also be possible in areas that heat up the most. The severe threat
should be closely tied to the front, with the threat moving from
west to east across the region during the late afternoon and early
evening.

Further to the south into the Mid-Atlantic, a corridor of moderate
instability is forecast to develop by afternoon. Although
large-scale ascent will remain weak, MLCAPE in the 2000 to 3000 J/kg
range and 0-3 km lapse rates exceeding 8.0 C/km should be favorable
for marginally severe wind gusts. Hail may occur with the stronger
updrafts as well.

...Lower Mississippi Valley/Central Gulf Coast States...
West-southwesterly mid-level flow will be in place across much of
the southern U.S. on Sunday. At the surface, a cold front will
advance southeastward into the lower Mississippi Valley and central
Gulf Coast states. Surface dewpoints ahead of the front in the 70s
F, should result in moderate instability by afternoon from Louisiana
northeastward into central Mississippi and western Alabama. This
combined with steep low-level lapse rates may be enough for a
marginal wind-damage threat, with storms that form along and near
the front late Sunday afternoon.

..Broyles.. 05/21/2022

$$

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

738
ACUS03 KWNS 210723
SWODY3
SPC AC 210722

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0222 AM CDT Sat May 21 2022

Valid 231200Z - 241200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
TEXAS...

...SUMMARY...
Isolated wind damage and large hail will be possible across parts of
central Texas Monday afternoon and evening. Marginally severe storms
with strong wind gusts and hail could also occur across parts of
north and east Texas.

...Texas...
An upper-level trough is forecast to move eastward into the southern
and central High Plains on Monday. At the surface, a trough is
forecast to develop across central Texas. Ahead of the surface
trough, a moist and unstable airmass will be in place with surface
dewpoints from the upper 60s to the mid 70s F. In response, moderate
instability is expected across much of the moist sector by
afternoon. Although thunderstorm development will be possible across
a large portion of the southern Plains, the strongest convection is
expected along the western edge of the moderately unstable airmass.
Thunderstorms are forecast to increase in coverage during the
afternoon and move eastward into the stronger instability across the
Texas Hill country and north Texas.

Forecast soundings Monday afternoon, near the axis of strongest
instability, have MLCAPE peaking in the 2500 to 3500 J/kg range. 0-6
km shear is forecast to range from about 30 knots in north Texas to
around 40 knots in the Texas Hill Country. This combined with steep
low to mid-level lapse rates should be sufficient for an isolated
severe threat. Wind damage would be the greatest of the threats if
an organized line segment can develop. If cells remain more
discrete, then supercell development will be possible. At this time,
the models show the best severe-weather parameters over southwest
and central Texas, where there could be a slightly greater potential
for wind damage and isolated large hail than further to the north.
If tomorrow's model runs continue to show more potential for severe
storms in central and southwest Texas on Monday, then a slight could
be added in an upcoming outlook.

..Broyles.. 05/21/2022

$$

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.