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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
341 AM EDT Thu Jul 18 2019

MIZ037>040-043>046-050>052-056>059-064>067-071>074-190745-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
341 AM EDT Thu Jul 18 2019

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

Showers and thunderstorms are possible from late morning to early
afternoon. A low chance exists for the thunderstorms to produce
gusty winds and torrential rainfall, mainly south of I-96.

Heat indices this afternoon will approach 100 degrees.

Additional thunderstorms are expected late tonight with
torrential rainfall and frequent cloud to ground lightning.
Localized ponding on roadways and in low-lying areas is possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Heat indices above 100 degrees Friday and Saturday with low
temperatures in the 70s may lead to heat-related illnesses,
especially along and south of I-96.

Additional showers and thunderstorms are possible Saturday night
into early Sunday with torrential downpours, frequent cloud to
ground lightning, and localized flooding possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$



Hydrologic Outlook

Hydrologic Outlook
MIC005-015-025-035-037-045-057-065-067-073-075-077-081-085-105-
107-117-121-123-127-133-139-159-190745-

Hydrologic Outlook
National Weather Service Grand Rapids MI
331 AM EDT Thu Jul 18 2019

...Rises in smalls streams and ponding of water on roads and low-
lying areas possible tonight...

Heavy rain-producing showers and thunderstorms are possible
tonight, especially after midnight. Localized total rainfall
amounts in excess of 2 inches are possible which will be enough to
cause small streams to rise and water to pond on roadways and in
low- lying areas. It is possible some small streams may briefly
overflow their banks if the heaviest rain tracks over the same
areas repeatedly.

Additional heavy rain is possible Saturday night into Sunday,
which may cause renewed flooding concerns if the same areas are
hit repeatedly.

The latest observations and forecasts are always available at
www.weather.gov/grr.

$$

BORCHARDT




Excessive Heat Warning

URGENT - WEATHER MESSAGE
National Weather Service Grand Rapids MI
327 AM EDT Thu Jul 18 2019

MIZ056>059-064>067-071>074-181530-
/O.NEW.KGRR.EH.W.0001.190718T1600Z-190721T0000Z/
Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-Ingham-Van Buren-
Kalamazoo-Calhoun-Jackson-
Including the cities of Grand Haven, Jenison, Grand Rapids,
Ionia, St. Johns, Holland, Hastings, Charlotte, Lansing,
South Haven, Kalamazoo, Battle Creek, and Jackson
327 AM EDT Thu Jul 18 2019

...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT
SATURDAY...

The National Weather Service in Grand Rapids has issued an
Excessive Heat Warning...which is in effect from noon today to
8 PM EDT Saturday.

HAZARDOUS WEATHER...

 * Heat indices will approach 100 degrees today and exceed 105
   degrees Friday and Saturday.

 * Overnight low temperatures in the mid to upper 70s with
   continued muggy conditions will provide little relief from the
   heat.

IMPACTS...

 * Heat illnesses are likely for those spending prolonged periods
   outside or in non-air conditioned environments. The heat is
   most dangerous to the elderly and young children.

 * Non-air conditioned car interiors will reach lethal
   temperatures in minutes.

 * Direct sun on pets and other animals will accentuate chances
   for heat illnesses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

 * Take extra precautions if you work or spend time outside. When
   possible...reschedule strenuous activities to early morning or
   evening. Know the signs and symptoms of heat exhaustion and
   heat stroke. Wear light weight and loose fitting clothing when
   possible and drink plenty of water.

 * To reduce risk during outdoor work the Occupational Safety
   and Health Administration recommends scheduling frequent rest
   breaks in shaded or air Conditioned environments. Anyone
   overcome by heat should be moved to a cool and shaded
   location. Heat stroke is an emergency...call 9 1 1.

 * Weather Preparedness Information is available on line at
   www.ready.gov/heat.

&&

$$



U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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