Flash flooding possible across parts of Great Basin and southern Plains
A very wet pattern will persist across the Great Basin and into the southern Plains on Tuesday. Heavy rainfall is expected from southeastern Wyoming across Colorado, northeastern New Mexico into the Texas Panhandle and western Oklahoma. Isolated rainfall rates of 1-2 inches per hour will bring a risk of flash flooding to these areas
Hazardous Weather Conditions
25NM WSW Grand Haven MI
Marine Point Forecast [NOTICE]
High and low forecast temperature values represent air temperature.
Water temperature forecast is experimental.
Associated Zone Forecast which includes this point
Last Update: 11:02 am CDT Jul 29, 2014
Forecast Valid: 1pm CDT Jul 29, 2014-6pm CDT Aug 4, 2014
WAVES ARE PROVIDED AS A RANGE OF SIGNIFICANT WAVE HEIGHTS...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES...ALONG WITH THE AVERAGE HEIGHT OF THE HIGHEST 10 PERCENT OF THE WAVES WHICH WILL OCCASIONALLY BE ENCOUNTERED.
- SynopsisHIGH PRESSURE OF 30.2 INCHES ACROSS THE NORTHERN AND
CENTRAL PLAINS WILL GRADUALLY WEAKEN TO 30.0 INCHES BY WEDNESDAY
AFTERNOON. MEANWHILE...LOW PRESSURE OF 29.9 INCHES WILL DEVELOP
ACROSS FAR EASTERN ONTARIO BY LATE THIS AFTERNOON AND MOVE TO
NEAR LAKE HURON BY TONIGHT. THIS LOW WILL STEER A WEAK COOL FRONT
SOUTHWARD DOWN THE LAKE TONIGHT INTO EARLY WEDNESDAY MORNING.
ANOTHER LOW OF SIMILAR MAGNITUDE WILL MOVE SOUTHWARD AND MERGE
WITH THIS LOW ON WEDNESDAY. THESE LOWS WILL EVENTUALLY BECOME A
COMBINED LOW NEAR 29.8 INCHES THAT WILL MOVE SLOWLY INTO QUEBEC ON
THURSDAY AND INTO FRIDAY. A WEAK COOL FRONT EXTENDING FROM THIS
LOW WILL MOVE SOUTHWARD ACROSS THE GREAT LAKES REGION FRIDAY
NIGHT. HIGH PRESSURE OF 30.2 INCHES WILL THEN BUILD OVER THE GREAT
LAKES REGION DURING SATURDAY NIGHT INTO SUNDAY.
- This Afternoon WNW wind around 10 kt. Isolated thunderstorms after 5pm. Waves around 1 ft.
- Tonight WNW wind 5 to 10 kt. Isolated showers and thunderstorms before 8pm, then isolated showers between 8pm and 4am. Waves 1 ft or less.
- Wednesday NW wind 5 to 10 kt. Mostly sunny. Waves 1 ft or less.
- Wednesday Night Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.
- Thursday W wind around 10 kt. Mostly sunny. Waves 1 ft or less.
- Thursday Night SSW wind around 10 kt. Partly cloudy. Waves 1 ft or less.
- Friday SW wind 5 to 10 kt. A slight chance of showers between 8am and 2pm. Waves 1 ft or less.
- Friday Night SW wind 5 to 10 kt. A slight chance of showers. Waves 1 ft or less.
- Saturday WNW wind 5 to 10 kt. A slight chance of showers. Waves 1 ft or less.
This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area.
Forecast information for a larger area can be found within the zone
forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc.
These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
HOURLY WEATHER GRAPH
NATIONAL DIGITAL FORECAST DATABASE