Scattered thunderstorms still possible this afternoon and early evening; heat advisory includes metro area
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The first batch of thunderstorms moved through much of Minnesota and the Twin Cities metro area this morning.
Some serious storm damage was reported in Bemidji:
More at:
It should be noted that straight-line thunderstorm winds can knock over trees and cause garages to collapse. A NWS survey team typically visits a storm damage site to determine whether it was a tornado or straight-line wind damage.
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Round two of thunderstorms will move across parts of Minnesota this afternoon and early evening.
A severe thunderstorm will be possible, so be aware of what county you are in during your 4th of July celebrations.
The Storm Prediction Center of the NWS has portions of southern Minnesota in a slight risk of severe weather this afternoon and tonight:
The Twin Cities metro area is in the SPC marginal risk of severe weather this afternoon and tonight, meaning that an isolated severe thunderstorm is possible.
Slight risk indicates that scattered severe thunderstorms are possible:
One forecast model shows that most of the thunderstorms will be out of Minnesota by fireworks time, but check forecast updates.
Updated weather information can be heard on the Minnesota Public Radio Network, and updates are also posted on the MPR News live weather blog.
Heat advisory this afternoon
The morning thunderstorms will keep our highs in check a bit this afternoon, but we'll still reach the upper 80s to around 90 in parts of southern Minnesota. Dew point temperatures will be in the sticky 70s.
A heat advisory includes the Twin Cities metro and parts of southern Minnesota and west-central Wisconsin until 8 p.m. this Wednesday evening:
Details of the heat advisory:
URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
1120 AM CDT Wed Jul 4 2018
...HOT AND HUMID WEATHER WILL RETURN LATER THIS AFTERNOON...
MNZ060-062-050030-
/O.CAN.KMPX.EH.W.0004.180704T1700Z-180705T0100Z/
/O.EXA.KMPX.HT.Y.0010.180704T1700Z-180705T0100Z/
Hennepin-Ramsey-
Including the cities of Minneapolis and St Paul
1120 AM CDT Wed Jul 4 2018
...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...EXCESSIVE HEAT WARNING IS CANCELLED...
The National Weather Service in Twin Cities/Chanhassen has issued
a Heat Advisory, which is in effect until 8 PM CDT this evening.
The Excessive Heat Warning has been cancelled.
* TEMPERATURE...after morning storms, temperatures will warm back
into the 80s early this afternoon, then reach 90 during mid and
late afternoon. Dew points will rise back into the lower 70s
this afternoon. This will result in heat indices in the mid and
upper 90s from mid afternoon into the early evening.
* IMPACTS...Heat illnesses are possible for those active
outdoors or those susceptible to heat illnesses, such as
children and the elderly.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids...stay in an air-conditioned
room...stay out of the sun...and check up on relatives and
neighbors.
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.
I hope that you have a great 4th of July!