Marine Weather and Tides
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
|Sunrise 5:23AM||Sunset 9:03PM||Wednesday June 20, 2018 7:57 PM CDT (00:57 UTC)||Moonrise 12:25PM||Moonset 12:31AM||Illumination 51%|
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7 Day Forecast for Marine Location Near Landfall, MNHourly EDIT Help
Area Discussion for - Twin Cities, MN  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus63 kmpx 202317|
area forecast discussion
national weather service twin cities chanhassen mn
617 pm cdt Wed jun 20 2018
Update For 00z aviation discussion below
Short term (this evening through Thursday)
issued at 310 pm cdt Wed jun 20 2018
main focus of the short term continues to obviously be the heavy
rainfall potential with the occluded low pressure system just to our
southwest. The model guidance today came in with a northward shift
in the QPF bullseye which is still focused across far northern iowa.
However, the risk has increased for significant rainfall through
tonight along the i-90 corridor due to this northward shift.
Precipitable water values of over 1.7 inches with ample lift but
limited CAPE will lead to efficient rainfall rates. On top of that,
the very slow moving nature of this system is key as the i-90
corridor will likely see steady rain nearly all night, leading to
the potential for several inches of rain.
The guidance today was in good agreement with the placement of the
heaviest rain. A blend of the hi-res guidance indicates a
realistic potential for 2-4" of rainfall near martin and
faribault counties, with localized higher amounts possible. Still
think the heavies will remain south of the iowa state line, but
did include these two counties in a flash flood watch through
tomorrow morning. This is definitely a long duration rainfall
event for far southern minnesota. As we head into tomorrow, the
occluded system will be very slowly working east-southeast with
time and lingering showers will likely last through the day across
Long term (Thursday night through Wednesday)
issued at 310 pm cdt Wed jun 20 2018
the upper-level low parked over the mid-missouri valley will finally
begin to move east Thursday night, with showers coming to an end
across far-southern minnesota. As the low departs a brief period of
high pressure moves in with dry & pleasant weather expected Friday
into Saturday afternoon.
Over the weekend, various weak perturbations in the upper level flow
will pass overhead which will provide enough support to generate at
least slight chances for scattered thunderstorms Saturday & Sunday.
The pattern looks to get more active Monday into mid-week as another
upper-level wave comes off the northern rockies. Large scale
southerly flow from a surface high over the eastern seaboard will
allow our dewpoints to increase into the upper 60s by Wednesday.
Cape values look to be greater than 1000-2000 j kg & pw values
approach 1.5" so the potential for severe weather & flooding will
have to be monitored. Models differ in timing of the upper-level
wave over our area so have capped pops in the 50% range mid-week.
Temperatures into next week will be relatively consistent &
seasonable, with highs around 80 & overnight lows around 60.
Aviation (for the 00z tafs through 00z Thursday evening)
issued at 618 pm cdt Wed jun 20 2018
an area of rain over northern iowa will continue to lift north
across southern minnesota tonight and early Thursday morning.
This rain should primarily affect krwf and kmkt, with attendant
MVFR conditions at worst. Elsewhere, mid high clouds will prevail
through the period. Winds will be predominately northeast through
the period at 6-10 knots with gusts into the mid upper teens at
southern sites (krwf and kmkt).
the area of rain will drift close to kmsp, but more likely not
impact the site. A slightly better chance arrives around daybreak
Thursday, but odds are still in the favor of a dry taf.
Outlook for kmsp
fri...VFR. Wind E 5 kts.
Sat...VFR. Chc -tsra. Wind NW 5 kts.
Sun...VFR. Slgt chc -tsra. Wind NE 5-10 kts.
Mpx watches warnings advisories
Mn... Flash flood watch through Thursday morning for mnz091-092.
Short term... Spd
long term... Eta
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Downtown Holman Field, MN||3 mi||65 min||E 7||10.00 mi||Overcast||77°F||59°F||54%||1009.6 hPa|
|Lake Elmo Airport, MN||9 mi||83 min||ENE 5||10.00 mi||Partly Cloudy||77°F||60°F||57%||1010.8 hPa|
|South St. Paul Municipal-Richard E. Flemi, MN||9 mi||83 min||E 6||10.00 mi||Overcast||76°F||58°F||55%||1010.2 hPa|
|Minneapolis, Minneapolis-St. Paul International Airport, MN||12 mi||65 min||ENE 11 G 23||10.00 mi||Overcast||78°F||59°F||52%||1009.5 hPa|
|Minneapolis / Blaine, MN||20 mi||2.2 hrs||E 10 G 18||10.00 mi||Mostly Cloudy||81°F||57°F||45%||1010.2 hPa|
|Minneapolis, Crystal Airport, MN||23 mi||65 min||ENE 7||10.00 mi||Overcast||78°F||57°F||48%||1009.4 hPa|
|Minneapolis, Airlake Airport, MN||23 mi||63 min||E 7||10.00 mi||Overcast||73°F||66°F||78%||1010.2 hPa|
Wind History from STP (wind in knots)
|1 day ago||NE||NE||E||NE||NE||NE|
|2 days ago||Calm||N||NW||NW||Calm||NW||N||N||N||N||N||N||N||N||N||N||NE||N||NE||NE||NE||NE||NE||NE |
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NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for Twin Cities, MN (20,4,5,8)(on/off)  Help
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