Showing posts with label flash foods. Show all posts
Showing posts with label flash foods. Show all posts

Friday, September 26, 2014

Last week rainfall events-Hurricane Odile

During the past week, starting Tuesday 16th, Hurricane Odile and moisture from the remnants produced heavy rainfall and caused flooding over the Baja California area and the southwestern United States.  We had a significant amount of rain in a relatively short period of time. The soil quickly gets saturated and water starts to accumulate.  Here, in New Mexico, we do not have a lot of natural hazards but flooding tops out on the list and causes inconvenience.




Photo 1-Heavy runoff in North of Rodeo, NM. Photo by David DuBois


Photo 2-Heavy runoff in North of Rodeo, NM. Photo by David DuBois
Photo 3-Playa West of Lordsburg, NM. Photo by David DuBois


Flash flood concerned portions of Eastern New Mexico and Western Texas ,but at the same time it eased the droughts in some zones of the Southwest region, where some areas have been experiencing extreme to exceptional drought conditions.  The NM Drought Monitoring Work Group met past Tuesday, 23 of September, for their monthly meeting and they agree in modify the current U.S. Drought Monitor map for New Mexico. According to the Drought Summary from the National Weather Service, Albuquerque NM, drought was removed from portions of southeast New Mexico, but 63% of the state is still in moderate to extreme drought and 30% is still in severe to extreme drought. The none drought category increases from 3 to 16%, which reflects about 13% of improvement in Southwest of New Mexico (figures 1 and 2).




Figure 1: U.S. Drought Monitor Weekly Comparison. Left map shows data from September 16, 2014 and right map shows September 23, 2014.
Source: U.S. Drought Monitor


Figure 2: U.S. Drought Monitor for September 23, 2014.
Source: U.S. Drought Monitor


Monsoon has been active late in the Monsoon season and provided moisture during the past weeks. Input from Hurricane Odile impulsed more humidity this last week.
 Time Lapse of the Organ Mountains on September 19, 2014. Video by D. DuBois




-Cristina Gonzalez

Thursday, July 25, 2013

Monsoon Storms Causing Issues Across New Mexico

The past two days have been rainy ones in New Mexico. Thunderstorms in the southern and central parts of the state have brought much-needed moisture, and while residents are grateful to see some rain falling, the storms have brought along some nasty side effects.

The CoCoRaHS precipitation map for today shows rainfall amounts recorded throughout the state for the last 24 hours. CoCoRaHS volunteer observers record the amounts present in rain gauges at 7 am (or thereabouts). Many New Mexico residents reported that they experienced the rain and thunderstorms in the evening and throughout the night, times when rain is a little more likely to fall during monsoon season. Notice that only two of the counties with stations sending in reports show no precipitation falling over the last 24 hours (five counties show no stations reporting for the day, as of this morning).

Precipitation amounts for the 24 hours leading up to 7 am on July 25 for New Mexico. Source: cocorahs.org


The precipitation map for July 24, showing precipitation accumulation for the previous 24 hours prior to 7 am on Tuesday, shows rainfall in fewer areas of the state, with the most significant rainfall occurring in the southwestern part of the state.

Precipitation amounts for the 24 hours leading up to 7 am on July 24 for New Mexico. Source: cocorahs.org

News sources have reported on the impacts of thunderstorms that occurred throughout the state yesterday. These reports clearly show some of the weather hazards that can come with the monsoon season. The TV station KRQE out of Albuquerque reported that a car was struck by lightning while driving in Torrance County yesterday; luckily, no one was injured. Last night, many in Dona Ana County experienced a few hours straight of thunder and lightning activity. The map below shows the lightning strike frequency from 6 am on July 24 to 6 am on July 25, 2013. The red and orange colors show the highest frequencies of strikes (greater than 14 and from 8 to 13, respectively). Notice just how much of the state received lightning strikes over the past 24 hours.
Map from the Predictive Services Program. Source: http://psgeodata.fs.fed.us/lightning_frequency.html

New Mexicans do see an increase in lightning and thunder this time of year. In fact, according to a report from NOAA, the region impacted by the Mexican Monsoon sees the most lightning activity in July and August of any area in the Western Hemisphere. And New Mexico has the highest rate of deaths from lightning strikes in the country at nearly two deaths per million people. NOAA has a lightning safety page to help you stay safe during thunderstorms.

The Albuquerque Journal reported that as much as two inches of rain fell in Guadalupe County yesterday and that flooding closed part of a road in Rio Rancho. KFOX 14 TV news out of El Paso reported on flooding in Vado in southern Dona Ana County. They included video of the flooding, showing the water running up to the porch of a trailer home and running in torrents down the street. Families had to be evacuated from their homes in this instance. Flash floods are a chief danger during monsoon season. They can develop and become dangerous very quickly. Today, all of southwestern and parts of central-western and central New Mexico are still under a flash flood watch. See the National Weather Service website for the latest warnings and advisories for your area.

Perhaps the most striking weather event to occur over the last few days was on Tuesday, when a microburst damaged homes and businesses in Columbus, a village in Luna County 30 miles south of Deming. A microburst is a type of downburst, which occurs when a wind rapidly descends from a thunderstorm and spreads out when it impacts the earth; a microburst is a downburst of less then 2.5 miles in diameter. This particular microburst had winds of up to 90 mph and did damage to some 29 structures in the village. No injuries were reported. Downburst winds are one of the leading causes of weather-related damage in the state.

So while you're enjoying the rain that's falling this monsoon season don't forget to be on the lookout for any potential dangers that can come with the thunderstorms, winds and lightning shows.