Tropical storms Amanda and Cristobal

Cristobal then made landfall in the Mexican state of Campeche on the Yucatán Peninsula at 13:35 UTC on June 3, 2020, with 1-minute sustained winds of 60 mph (97 km/h),[b] causing torrential rainfall throughout the region.

The system progressed north through the Mississippi Valley, managing to survive over land as a tropical depression, before finally becoming extratropical over southern Wisconsin at 03:00 UTC on June 10.

Tropical Storm Amanda produced torrential rainfall across Guatemala and severely impacted El Salvador, causing the worst natural disaster in the country since Hurricane Mitch in 1998; rivers overflowed and swept away buildings, damaging 900 homes and displacing over 1,200 people.

[4] Furthermore, several other factors were favorable during the formation of Amanda, most notably a Kelvin wave traversing east over the far eastern portion of the basin and a mid-to-upper-level low forming off the coast of Mexico, both of which were enhanced large-scale convective activity.

[4] As the tropical wave emerged into the Pacific, it caused the pre-existing disturbance that was being enhanced by a Central American Gyre (CAG) to become more organized.

[4][5] By May 30, the system attained a closed and defined low-level circulation and was considered sufficiently organized enough to be designated as Tropical Depression Two-E later that same day, remaining embedded within the eastern side of a Central American Gyre.

[7] Amanda's appearance quickly deteriorated over land due to the mountainous landscape, and its low-level circulation center dissipated at 18:00 UTC on May 31.

[1][4][8][9][10][11] On June 1, as the system moved northward toward the Yucatán Peninsula, the NHC advised that in all likelihood, it would develop into an Atlantic tropical depression within the next few days.

[6] At 21:00 UTC that same day, the system developed a new low-level circulation center and acquired enough convection to be designated as Tropical Depression Three in the North Atlantic basin, with maximum sustained winds of 30 mph (48 km/h).

Later, at 13:35 UTC on June 3, reports from a Hurricane Hunter aircraft indicated that Cristobal had made landfall at peak intensity near Atasta, Mexico, just to the west of Ciudad del Carmen, with sustained winds of 60 mph (95 km/h) and a central barometric pressure of 994 millibars (29.4 inHg).

[17] Cristobal, beginning to lose its convective activity, began to slowly weaken as the day went on while it pushed further southeast into the Mexican state of Campeche.

The depression lost most of its banding features due to prolonged interaction with land, and most of its convection was limited to the northeastern quadrant of the circulation.

The weakening storm moved directly over the New Orleans metropolitan area and clipped the southwest corner of Mississippi before dropping to tropical depression status by 12:00 UTC on June 8 while centered near the Louisiana-Mississippi border.

The blocking high was then pushed eastward by advancing deep-layer trough over the Rocky Mountains, and Cristobal accelerated northward along the Mississippi Valley, passing over Arkansas, Missouri, Illinois, and Iowa.

Six hours later, Cristobal became extratropical at 00:00 UTC on June 10, while situated over northeastern Iowa, the farthest northwest a fully-tropical system had traveled over North America in recorded history.

[23] A peak gust of 50 knots (93 km/h; 58 mph) was recorded at the Stannard Rock Lighthouse, just southeast of the Keweenaw Peninsula, as the storm moved across Lake Superior toward Northern Ontario, Canada.

[23][25] At 12:00 UTC on June 10, Cristobal reached an extratropical peak of 982 millibars (29.0 inHg), as a tropical storm-force low, before weakening on the next day.

The Puerto Isla del Carmen terminal at the mouth of the Grijalva River was closed for vessels of all types as Cristobal approached; waves there reached up to 10 feet (3.0 meters) high on June 2.

[37] The combined effects of Tropical storms Amanda and Cristobal brought torrential rains to a large swath of Central America and Mexico.

According to the National Hurricane Center, parts of the Pacific coasts of El Salvador, Guatemala, and Mexico's Chiapas state picked up 20 in (510 mm) of rainfall.

[45] In El Salvador, torrential rainfall caused significant damage along coastal cities in the country as rivers overflowed and swept away buildings.

[58][59][60] Despite being located relatively far away from where Amanda made landfall, five people died in Honduras due to the storm, including a brother and sister whose car was swept away by a current in Tegucigalpa.

[40] Cristobal also caused minor damage to a PEMEX oil platform in the Gulf of Mexico and to the terminal at Isla del Carmen (near where it made landfall).

[40] Further east, in Lázaro Cárdenas, Quintana Roo, the heavy rain from Cristobal caused flooding and damaged 10 hectares (25 acres) of papaya.

[42] Ahead of the storm's landfall, two children died in Louisiana after being pulled to sea by a rip current,[67] and a third drowned in Texas due to the rough surf.

[69] A large portion of Louisiana Highway 1 was completely flooded and inaccessible throughout June 7, and around 4,000 power outages occurred across New Orleans on that same day.

[67][71] A destructive EF1 tornado struck areas just east of Downtown Orlando, starting as a waterspout over Lake Conway before moving ashore and damaging or uprooting multiple trees, some of which fell onto homes.

[1] However, the heavy rainfall from Cristobal relieved a seasonal drought in the state, where some parts of North Florida recorded over 10 inches (250 mm) of rain in just a day.

[74] In Mississippi near where Cristobal made landfall, several weather observation sites reported strong tropical storm-force winds.

[77] Downgraded to a tropical depression, Cristobal merged with another storm system coming from the west, bringing torrential rainfall and gusty winds across the Midwestern states.

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
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
Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
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
Tropical Storm Cristobal re-intensifying just north of the Yucatán Peninsula on June 5
Tropical Storm Cristobal as a tropical depression over the United States undergoing extratropical transition
The precursor disturbance of Amanda shortly before being declared a tropical depression on May 30
9-day rainfall totals across Central America from Tropical Storm Amanda and its Atlantic continuation, Tropical Storm Cristobal.
Tropical Storm Cristobal nearing landfall in Louisiana on June 7
Cristobal early on June 10, shortly after transitioning into an extratropical cyclone, while bringing severe thunderstorms to Michigan and Ontario.