Calor y Humedad en los Estados Unidos

Hoy (18 Jueves 2013), el Servicio Meteorológico Nacional ha emitido una alerta sobre las condiciones extremas en el norte y este de los Estados Unidos.  Los estados que verán afectados serán los de North Dakota hasta Massachusetts.  Este aviso de calor es en efecto porque las temperaturas en estas regiones están extremamente altas.

Hace mucho calor en varios estados de los Estados Unidos, especialmente en el nordeste, con temperaturas de sobre 30 grados centígrados

No solo está el calor,  pero también la humedad.  La combinación puede tener un efecto negativo en la salud de los residentes de estas áreas.  Se recomienda que las personas que están trabajando fuera en el sol tomen descansos frecuentes. En Nueva York, la temperatura de 36 grados centígrados, pero, el promedio ha sido solamente 29.  Boston tiene una temperatura de 34 grados centígrados, ocho grados más que el promedio.



From Drought to Flood Threat: U.S. Southern Plains

The National Weather Service has outlined flash flood watches throughout most of central Texas and into areas of the Four Corners. In the next 24 hours, 2 to 4 inches of rain are expected in central Texas, with 1 to 2 inches northeast into the Four Corners region.

Flood watches issued by NWS covering Texas and portions of the Four Corners

This rain will provide relief for SW regions where dry air and high temperatures have been persistent. As of July 9th, 2013, the U.S. Drought Monitor classified these areas as having extreme to exceptional drought conditions. Now, rain here is even expected to become a flood threat.

Not only will these arid regions see moisture, but they are also expected to see cooler temperatures. Average triple-digit temperatures will not likely be seen again until after the storms pass. Rather, highs near 80 degrees are in the forecast through midweek.

1-2 inches of rain are expected in the SW Plains, with up to 6 inches in parts of Texas over the next 2 days

Overall, 1 to 3 inches of rain are expected over these regions, with 4 to 6 possible in some areas. Thunderstorms bringing this downpour will also bring lightning strikes and gusty winds. Flash flooding is a potential threat, especially as rain accumulates more throughout the week and into next week. In the next 7 days, more showers are expected and floods here could become dangers, as they can easily carry debris and cause lowlands to become impassable. Residents of these regions are warned to take precaution in the event of flash flooding, and to avoid afternoon hiking on ridges in order to avoid being struck by lightning.



Typhoon Soulik-Closing Eye

Typhoon Soulik is experiencing what meteorologists call an eyewall replacement cycle.  Major hurricanes commonly undergo this transformation when winds exceed 100 knots (115 mph/185 kph).  An outer eyewall can develop as the eye becomes smaller in size and surrounding thunderstorms intensify.  Soulik has weakened due to the outer wall overtaking the inner wall and closing the eye.  If the eye closes completely, the storm has a chance of strengthening once again.  This westward moving system, with winds of 95 knots (109 mph/175 kph) and higher gusts, remains a major threat to nearby regions.  It is expected to hit the southern end of Ishigaki-jima Island tomorrow morning (July 12, 2013), northern Taiwan later tomorrow, and China on Saturday (July 13, 2013).

Soulik's eye is was still open early this morning (July 11, 2013), but is becoming less distinguishable.

Soulik’s eye was still open early this morning (July 11, 2013), but was becoming less distinguishable.

12 hours later, clouds have closed in on Soulik's eye.

12 hours later, clouds have closed in on Soulik’s eye.

Typhoon Soulik-Extreme Winds

Typhoon Soulik is expected to maintain strong winds on it's northwestern path through Friday, July 12, 2013

Typhoon Soulik is expected to maintain extremely strong winds on its northwestern path through Friday, July 12, 2013. (CNNi Weather Team)

Powerful Typhoon Soulik continues moving northwest toward the northern tip of Taiwan. As of 2100 UTC (4 pm EDT), this immense tropical system has reached Category 4 status with maximum sustained winds of 115 knots (132 mph/213 kph) and higher gusts. It is likely to reach Super Typhoon status with winds exceeding 137 knots (157 mph/252 kph) later this week. As announced by CNNi Meteorologist Tom Sater, Soulik is expected to hit Taiwan by Friday morning and China on Saturday. These intense winds could cause tremendous damage leading to blackouts and heavy flooding, thus warnings for this region have been issued.

Thousands Evacuated in China Landslide

According to local officials, 30 to 40 people have been buried in the Djiangyan landslide in China’s Sichuan province.  Continuous rain accumulation and intense flooding led to unstable ground and landslide conditions. On Tuesday, the Qinglian bridge in Jiangyou collapsed, leaving 12 people missing.  Since then, the floods have overtaken another bridge in Jiangyou, along with a bridge in Deyang.

Picture taken July 9, 2013 of  dangerous flooding through China's Sichuan province (AFP/Getty Images)

Picture taken July 9, 2013 of dangerous flooding through China’s Sichuan province (AFP/Getty Images)

Xinhua news agency reports almost 37,000 people have relocated, with over 300 homes destroyed in Sichuan and nearby Yunnan.  Hundreds of Southwestern China’s residents are killed annually by landslides, and the soil erosion conditions in this area are only worsening.  Already, more than 81,000 acres of crops have been affected by the extreme rain, while economic losses have toppled over $40 million. Heavy rain is expected to continue through Friday and may contribute to intensifying flood conditions.

Typhoon Soulik-Headed for China

The tropical system named Soulik nearing the Philippines has been classified as an intensifying Typhoon.   At 1500 UTC (11 am EDT) today, the eye of the storm was located about 678 nautical miles east-southeast of Kadena Air Base in the northwestern Pacific Ocean. Winds have quickly risen to 95 knots (109 mph/175 kph), with gusts up to 115 knots (135 mph/215 kph).  Soulik is expected to strengthen throughout this week as it continues on its west-northwest path.

As of 1500 UTC Tuesday, July 9, 2013 Soulik had winds of 175 kph (110 mph) with higher gusts and heavy rain.

Models predict the storm will reach Category 4 Saffir-Simpson wind scale conditions Thursday or Friday.  Extreme winds and flooding rain are expected to hit The Philippines, Taiwan, and portions along the eastern portion of south-central China by Thursday and into Friday. Fujian and Zhejiang would be the main regions of China affected, with Shanghai only slightly north. High gusts and extreme rain from Soulik early this weekend would have a devastating impact on these densely populated areas.