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Tropical Storm Imelda

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Tropical Depression Imelda
Current storm status
Tropical depression (1-min mean)
Satellite image
Forecast map
As of:10:00 a.m. CDT (15:00 UTC) September 19
Location:30°30′N 95°30′W / 30.5°N 95.5°W / 30.5; -95.5 (Tropical Depression Imelda)
About 55 mi (90 km) N of Houston, TX
About 55 mi (85 km) E of College Station, TX
Sustained winds:20 kn (25 mph; 35 km/h) (1-min mean)
Pressure:1009 mbar (29.80 inHg)
Movement:N at 5 kn (6 mph; 9 km/h)
See more detailed information.

Tropical Storm Imelda is currently a weak tropical cyclone causing catastrophic flooding in the southeastern Texas area. The eleventh tropical cyclone and tenth named storm of the 2019 Atlantic hurricane season, Imelda formed out of an upper-level low that developed in the Gulf of Mexico and moved westward. Little development occurred until the system was near the Texas coastline, where it quickly developed into a tropical storm, before Imelda moved ashore shortly afterward.

Beginning on September 17, as it made landfall, Imelda brought heavy rain and dangerous flooding to parts of southeastern Texas as its motion slowed. Dozens of water rescues began to occur on September 19 as areas became overwhelmed by the rainfall, with some areas experiencing over 40 inches (100 cm).

Meteorological history

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
Saffir–Simpson scale
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
triangle Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

On September 14, the NHC began monitoring an upper-level low of the west coast of Florida for possible tropical development.[1] During the next several days, the system moved westward across the Gulf of Mexico, though the NHC gave the disturbance only a low chance of development. By September 17, the system had reached the east coast of Texas.[2] Soon afterward, organization in the system rapidly increased, and at 17:00 UTC that day, the system organized into Tropical Depression 11, just off the coast of Texas.[3] The storm continued strengthening while approaching land, becoming Tropical Storm Imelda at 17:45 UTC.[4] Shortly thereafter, at 18:30 UTC, Imelda made landfall near Freeport, Texas at peak intensity, with maximum 1-minute sustained winds of 40 mph (65 km/h) and a minimum central pressure of 1,005 millibars (29.7 inHg).[5] Imelda weakened after landfall, becoming a tropical depression at 03:00 UTC on the next day. At that time, the NHC passed on the responsibility for issuing advisories to the Weather Prediction Center (WPC).[6]

Current storm information

As of 4:00 a.m. CDT (09:00 UTC) September 19, Tropical Depression Imelda is located near 31°18′N 95°30′W / 31.3°N 95.5°W / 31.3; -95.5 (Imelda), about 110 mi (180 km) north of Houston, Texas and about 70 mi (115 km) northeast of College Station, Texas. Maximum sustained winds are 25 kn (30 mph; 45 km/h), with stronger gusts. The minimum barometric pressure is 1009 mbar (29.80 inHg), and the system is moving north-northwest at 4 kn (5 mph; 7 km/h).

For latest official information see:

Impacts

Throughout the morning of September 19, Imelda caused widespread flooding to SE Texas and the Houston Area, causing many of the local bayous to overtop their banks and flood residential areas. More than 1,000 people have been rescued from floodwaters. All bus and rail services have been temporarily shut down in Houston. A roof of a United States Postal Service building collapsed, leaving three people with minor injuries. The George Bush Intercontinental Airport closed for about 90 minutes due to flooding on the runways, cancelling 655 flights.[7] Over 38 inches (97 cm) of rain fell in Beaumont.[8] 41.81 inches (106.2 cm) inches of rain were reported on I-10 between Winnie and Beaumont, with nearly 30 inches (76 cm) falling in just 12 hours. Rain fell at over 5 inches (13 cm) per hour in several places.[9]

See also

References

  1. ^ Jack Beven (September 14, 2019). "Two-Day Graphical Tropical Weather Outlook". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved September 19, 2019.
  2. ^ Stacy R. Stewart (September 17, 2019). "Two=Day Graphical Tropical Weather Outlook". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved September 17, 2019.
  3. ^ Daniel Brown (September 17, 2019). "Tropical Depression Eleven Special Discussion Number 1". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved September 17, 2019.
  4. ^ Michael Brennan; Daniel Brown (September 17, 2019). "Tropical Storm Imelda Tropical Cyclone Update". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved September 19, 2019.
  5. ^ David Zelinsky; Daniel Brown (September 17, 2019). "Tropical Storm Imelda Tropical Cyclone Update". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved September 19, 2019.
  6. ^ Richard Pasch (September 18, 2019). "Tropical Depression Imelda Discussion Number 3". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved September 19, 2019.
  7. ^ "Houston Bush Intercontinental Airport reopens: Rains prompt 650+ canceled flights". USA Today. Retrieved 2019-09-19.
  8. ^ "Imelda slams southeast Texas, bringing flash floods and mandatory evacuations". NBC News. Retrieved 2019-09-19.
  9. ^ "Tropical Depression Imelda Has Dumped More Than 40 Inches of Rain on the Texas Gulf Coast". Earther. Retrieved 2019-09-19.
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