The Ann Arbor plow truck public tracking page shows where the snow plows are out and about in Ann Arbor.
This view shows 4 of the 5 trucks that were out on Monday evening, January 2, 2012.
Plow routes are color coded, and plow trucks are numbered. One tip: if you are using Chrome, turn on and off the "label" field to get the trucks to show.
The system is build by Radio Satellite Integrators, and uses ESRI map technology. I don't have an explanation for the US-12 shield on Jackson Road.
THIS WEEK IN MAPS, for Sunday, October 30, 2011: A late October snowstorm is heading up the East Coast of the United States for Halloween. Here's maps of the affected areas, showing what parts of the electrical grid have had the worst impact from the heavy, wet snow in the forecast.
As of 2:00 a.m. Sunday, 32% of PSNH customers are without power.
NSTAR list of power outages by town (PDF) for midnight, Sunday; no map. The NSTAR outage center lists contacts. Over 52,000 customers without power out of 1.1 million served (5%).
National Grid at 1:30 a.m. on Monday shows substantial outages statewide.
Connecticut Light and Power, a Northeast Utilities company, has a map that shows that the outages from the storm are worse than from Hurricane Irene. Over 700,000 of CLP's 1.2 million customers are without power (56%) as seen on this map as of 1:38 a.m. Sunday, October 30. Area codes affected include 203, 475, and 860.
The Ridgefield Press storm live blog notes trees down, power outages, traffic accidents, electrical fires due to trees falling on live wires, and other storm-related damage in Ridgefield, CT.
More local news coverage of southwestern Connecticut news from papers in the Hersam Acorn Newspapers chain.
Power consumption, actual and forecast, from CT Energy Info.
The PhillyBurbs.com story about the outages has photos of the tree damages in Bucks and Montco counties. PECO spokesman spokesman Ben Armstrong told the paper that Saturday’s storm was the worst October storm in the utility’s history.
Is Your Power Out? Call 1-800-Allegheny (1-800-255-3443) and let us know.
Map as of 8:06 a.m., Saturday, October 29, 2011.
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== Updates == * Tue 8:30 a.m. PA, NJ, CT updates * Sun 2:25 a.m. More CT including Hersham Acorn news chain for SW CT * Sun 2:00 a.m. Connecticut Light and Power * Sat 8:21 a.m. start work on map collection for Sunday "publication"; Allegheny Electric
The Dayton Daily News notes an overnight frost quake centered around Darke County, Ohio on February 10, 2011.
The quake, or cryoseism as it’s known in scientific circles, occurs when moisture soaks into the soil and a quick freeze causes a sudden, even violent expansion and contraction. Darke County’s 911 director Brandon Redmond said the quakes erupted for eight hours Thursday, starting at 1 a.m. The heaviest reports were between 5:30-7:30 a.m.
No reports came through to the USGS Do you feel it service that I can locate (searches for Indiana and Ohio came up blank.)
A similar ice quake happened on Lake Mendota near the University of Wisconsin in 2008, close enough for a geology department seismograph to pick up a reading.
The Jan 31, 1986 This Week in NOAA describes the analysis of frost quake events in Maine.
The most thorough analysis I've found is Frost quakes as a particular class of seismic events: Observations within the East-European platform A. A. Nikonov , IZVESTIYA PHYSICS OF THE SOLID EARTH Volume 46, Number 3, 257-273, DOI: 10.1134/S1069351310030079 . Alas, subscription only; the abstract:
The group of quakes, which are caused by fast freezing of water-saturated soils or rocks at abrupt drop of winter temperatures often occurring in the middle and high latitudes of Eurasia, is considered. The review of little-known literature is given; the statistical data on the distribution of earthquakes in seasons and the time of day in various regions of Eurasia are presented. Special attention is paid to the East European Platform; using the data for this platform, with thorough consideration of reference quakes along with the weather conditions, the signs of a specific class of nontectonic seismic events are determined. The question concerning the necessity of the frost quakes’ discrimination in compilation of tectonic earthquake catalogues in certain regions is stated.
Translated from the original Russian, which is transliterated as Morozoboinye sotryaseniya kak osobyi klass seismicheskikh yavlenii (po materialam Vostochno-Evropeiskoi platformy). The dedication is
The tremors come, the tremors go, They love the wintry weather, With periods fast and periods slow – Perplexing altogether C.B. Hammond. The song of the seismologist. 1911.
The original Song of the Seismlologist is from the Bulletin of the Seismological Society of America.
More frost quake accounts, from 1908 in Connecticut
