76 F. average high on September 6.
81 F. high on September 6, 2012.
Trace of rain yesterday from early morning showers.
Mid-90s possible Monday (with strong T-storms nearby). Heat Advisory may be issued.
40-degree dew points return the latter half of next week, more September-like temperatures.
- August rainfall totals were below historical averages in most MInnesota counties. In many communities, especially in east central Minnesota counties, August precipitation totals fell short of long-term averages by two or more inches.
- Across much of the southern three-quarters of Minnesota, July-plus-August rainfall totals were 4-6" below normal. Rainfall deficits, along with very hot late-August temperatures, led to a rapidly developing drought situation across much of the Midwest.
- The U.S. Drought Monitor places an area of central MInnesota in the "Severe Drought" category. Large sections of the rest of MInnesota are rated n the "Moderate Drought" category.
- Ample autumn rains will be required to refill the soil moisture profile and to recharge groundwater and surface water systems.
Long Overdue For A (Major) Hurricane. It's been 8 years since America has been struck by a Category 3 or stronger hurricane (Wilma in 2005). If we go 4 more days without a hurricane we'll set a new record (for latest-first hurricane in the Atlantic basin). But it's still early to call the hurricane season a bust. Gustav formed on September 11, 2002, followed by 3 more hurricanes. Erin didn't form until September 9, 2001. It was one of 9 hurricanes that year, 4 of them major Category 3 storms. Graphics: WeatherNation TV.
Image credit above: "This satellite image of shows tropical storm Gabrielle moving east toward the Dominican Republic Wednesday. The storm has since been downgraded to a tropical depression." NASA GOES Project/Reuters.
Photo credit above: AP. "This file photo shows thousands of cars that were damaged in Superstorm Sandy and stored on the runways at Calverton Executive Airpark in Calverton, N.Y. USAA totaled some 4,000 customer vehicles that had been damaged, but officials for the San Antonio-based insurer now admit that some vehicles that had been totaled instead were resold and put back on the road. USAA had earmarked 174 vehicles to be sold for parts only, but has found that some were fraudulently given clean titles."
* the August 2013 Global Catastrophe Recap PDF from Aon Benfield is here.
* USA Today takes a look at how frequency of extreme heat and coastal flooding have changed in recent decades.
Diffenbaugh and Scherer found strong evidence that the high levels of greenhouse gases now in the atmosphere have increased the likelihood of severe heat such as occurred in the United States in 2012.
Read more at: http://phys.org/news/2013-09-global-scientists.html#jCp
The record-setting impacts of Sandy were largely attributable to the massive storm surge and resulting inundation from the onshore-directed storm path coincident with high tide. However, climate-change related increases in sea level have nearly doubled today’s annual probability of a Sandy-level flood recurrence as compared to 1950. Ongoing natural and human-induced forcing of sea level ensures that Sandy-level inundation events will occur more frequently in the future from storms with less intensity and lower storm surge than Sandy..."
* Climate Central has more on the doubling risk of Sandy-scope storm surges.
Photo credit above:
* the full report, all 104 pages (PDF) of the report referenced above is here, courtesy of the AMS, the American Meteorological Society.