sweetapricity/bridgedeck-noaa huggingface dataset:
A frontal boundary, coupled with an extremely warm and humid environment, produced another day of slow moving, torrential downpour producing thunderstorms over Central New York. Approximately, 1 to 3 inches of rain fell in a short amount of time. The Southern Tier was again hit with major impacts from flash flooding of local creeks, streams and overwhelmed storm drainage systems.

Flash Flood in STEUBEN, NEW YORK
From 12-JUL-21 16:00:00 to 12-JUL-21 18:15:00 (EST-5)
Location: YOUNG HICKORY
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Roads were reported to be flooded and washed out.

Flash Flood in STEUBEN, NEW YORK
From 12-JUL-21 16:15:00 to 12-JUL-21 18:30:00 (EST-5)
Location: GREENWOOD
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

Several roads reported to be flooded in the area.

Flash Flood in BROOME, NEW YORK
From 12-JUL-21 17:53:00 to 12-JUL-21 20:30:00 (EST-5)
Location: TRACY CREEK
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Several roads were flooded.

Flash Flood in DELAWARE, NEW YORK
From 12-JUL-21 20:15:00 to 12-JUL-21 21:20:00 (EST-5)
Location: HANCOCK
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Widespread flooding of streets and poor drainage areas within the Village of Hancock. A State of Emergency was declared.
Warm, humid conditions supported a quickly destabilizing atmosphere during the afternoon. This allowed for scattered thunderstorms to develop across Northeastern Pennsylvania. One storm became severe, knocking down a tree onto a roadway.

Thunderstorm Wind in LACKAWANNA, PENNSYLVANIA
From 08-JUL-21 17:55:00 to 08-JUL-21 17:55:00 (EST-5)
Location: RICHMONDALE
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Strong thunderstorm winds knocked down a tree onto roadway.
An upper-level disturbance interacted with a warm front across northwest Tennessee resulting in a cluster of storms during the early evening hours of April 28th. The storms traveled east along the warm front and produced a tornado across parts of Henry County.

Thunderstorm Wind in OBION, TENNESSEE
From 28-APR-21 16:20:00 to 28-APR-21 16:25:00 (CST-6)
Location: UNION CITY
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Branches greater than a foot in diameter were torn from trees.

Thunderstorm Wind in HENRY, TENNESSEE
From 28-APR-21 17:52:00 to 28-APR-21 18:10:00 (CST-6)
Location: INDIA
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: NWS Employee

A swath of straight-line wind damage associated with the rear flank downdraft occurred south of the tornado track. A few trees were uprooted and many large branches were knocked down.

Tornado in HENRY, TENNESSEE
From 28-APR-21 17:53:00 to 28-APR-21 18:09:00 (CST-6)
Location: NOBLES
Tornado F-scale: EF1
Property damage: 600.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The first damage from the tornado was observed just west of Shady Grove Road, where large tree branches were broken. As the tornado crossed Buchanan Road, several homes suffered roof damage and a large storage shed was destroyed. The tornado uprooted trees and snapped tree trunks in this area. Further east, along Scarborough Lane, the tornado uprooted trees and removed the metal roof from an event venue. The tornado damaged several mobile homes just west of Log Cabin Road. Two of the mobile homes were rolled on their sides. The injury was reported in one of these mobile homes. The tornado crossed U.S. Highway 79 and appeared to reach maximum intensity in the area of Sulphur Wells Academy Road and Friendship Road. A large metal building was destroyed, and numerous trees were uprooted or had their trunks snapped. The tornado was weakening as it crossed Oak Grove Road, and the last observed damage was east of Antioch Road. In total three mobile homes and two commercial businesses were destroyed. Three homes suffered major damage from trees and 23 homes suffered minor damage. Peak winds were estimated at 95-100 mph.
A lightning strike ignited a wildfire 15 miles south of Eagle near Sylvan State Park.

Wildfire in GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS, COLORADO
From 20-JUN-21 14:15:00 to 30-JUN-21 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

The Sylvan Fire began in mid June due to lightning, 15 miles south of Eagle near Sylvan State Park, and grew to 3,792 acres before it was contained in mid October.
A warm and humid airmass remained stagnant over Central New York on this day. A weak upper level disturbance moved through the region, triggering heavy rain producing thunderstorms. Steering winds were very weak, therefore, thunderstorms lingered over the same areas resulting in urban and small stream flash flooding.

Flash Flood in ONEIDA, NEW YORK
From 19-JUL-21 15:12:00 to 19-JUL-21 17:30:00 (EST-5)
Location: DUNN BROOK
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: State Official

A tree was reported to be blocking a culvert causing the road to flood.

Flash Flood in ONEIDA, NEW YORK
From 19-JUL-21 15:15:00 to 19-JUL-21 17:30:00 (EST-5)
Location: AVA
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: State Official

Flint Town Rd. is washed out. Flooding occurring in nearby home.

Flash Flood in ONEIDA, NEW YORK
From 19-JUL-21 15:40:00 to 19-JUL-21 17:30:00 (EST-5)
Location: HILLSIDE
Flood cause: Heavy Rain
Property damage: 75.00K
Crop damage: 0.00K
Reported by: State Official

Homes are flooded and water rescues are underway.

Flash Flood in ONEIDA, NEW YORK
From 19-JUL-21 16:55:00 to 19-JUL-21 17:44:00 (EST-5)
Location: NORTH WESTERN
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: State Official

River Road and Route 46 are closed due to flash flooding.
A strong pressure gradient behind a cold front across much of the CWA coupled with good cold air advection produced high winds across the region.

High Wind in MORTON, KANSAS
From 27-OCT-21 10:04:00 to 27-OCT-21 10:04:00 (CST-6)
Magnitude: 52.00 MG
Reported by: Mesonet

High Wind in FORD, KANSAS
From 27-OCT-21 11:52:00 to 27-OCT-21 11:52:00 (CST-6)
Magnitude: 50.00 MG
Reported by: ASOS

High Wind in SEWARD, KANSAS
From 27-OCT-21 12:29:00 to 27-OCT-21 12:29:00 (CST-6)
Magnitude: 50.00 MG
Reported by: Mesonet

High Wind in SEWARD, KANSAS
From 27-OCT-21 13:16:00 to 27-OCT-21 13:16:00 (CST-6)
Magnitude: 52.00 MG
Reported by: Mesonet
Scattered thunderstorms associated with low pressure and a frontal boundary produced heavy rain which caused flash flooding across portions of central Virginia.

Flash Flood in HOPEWELL (C), VIRGINIA
From 20-AUG-21 02:40:00 to 20-AUG-21 05:45:00 (EST-5)
Location: HOPEWELL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Portions of Randolph Road was closed due to high water.
A cluster of strong thunderstorms formed in northeast Missouri early in the morning, August 11th, 2021.  These storms expanded and moved northeast into northern Illinois, with a swath of damaging winds, hail, and very heavy rainfall. Some flash flooding was reported in southeast Iowa. As the storms approached the Mississippi River, a large swath of strong winds developed behind the storms, resulting in sustained winds of 40 to 60 mph, and damage through the Quad Cities metro area. This type of event is due to a wake low pressure system, behind the storms.

High Wind in SCOTT, IOWA
From 11-AUG-21 07:30:00 to 11-AUG-21 08:00:00 (CST-6)
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

County EMA reported widespread winds of 40 to 60 mph through the county, with areas of tree limb damage, and minor property damage such as trampolines blown over.  These winds occurred after the storm had ended.

Flash Flood in DES MOINES, IOWA
From 11-AUG-21 06:00:00 to 11-AUG-21 07:00:00 (CST-6)
Location: WEST BURLINGTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The fire department reported water deep enough that vehicles could not pass through on Mt Pleasant street and West Burlington Avenue.

Flash Flood in DES MOINES, IOWA
From 11-AUG-21 06:40:00 to 11-AUG-21 07:40:00 (CST-6)
Location: LENOX PARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported that Highway 61 in Burlington was impassable and 3 vehicles were stranded.

Hail in DES MOINES, IOWA
From 11-AUG-21 05:25:00 to 11-AUG-21 05:25:00 (CST-6)
Location: WEST BURLINGTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public
A ridge of high pressure and southwesterly flow allowed heat and humidity to build across the region.

Heat in PRINCE WILLIAM, VIRGINIA
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.

Heat in FAIRFAX, VIRGINIA
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.

Heat in STAFFORD, VIRGINIA
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.

Heat in SPOTSYLVANIA, VIRGINIA
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.

Heat in KING GEORGE, VIRGINIA
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.

Heat in NORTHERN FAUQUIER, VIRGINIA
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.

Heat in SOUTHERN FAUQUIER, VIRGINIA
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.

Heat in WESTERN LOUDOUN, VIRGINIA
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.

Heat in EASTERN LOUDOUN, VIRGINIA
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.
A ridge of high pressure and southwesterly flow allowed heat and humidity to build across the region.

Heat in NORTHERN BALTIMORE, MARYLAND
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.

Heat in CECIL, MARYLAND
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.

Heat in SOUTHERN BALTIMORE, MARYLAND
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.

Heat in CHARLES, MARYLAND
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.

Heat in ST. MARY'S, MARYLAND
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.

Heat in CALVERT, MARYLAND
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.

Heat in NORTHWEST HARFORD, MARYLAND
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.

Heat in SOUTHEAST HARFORD, MARYLAND
From 11-AUG-21 11:00:00 to 11-AUG-21 18:00:00 (EST-5)
Reported by: AWOS

Heat indices rose to between 105 and 110 degrees.
Multiple supercell thunderstorms developed in the vicinity of a warm front across the South Carolina Piedmont throughout the afternoon. Despite exhibiting intense rotation at times, severe weather from these storms was limited to one brief, weak tornado, isolated large hail, and straight line wind gusts as high as 85 mph.

Thunderstorm Wind in LAURENS, SOUTH CAROLINA
From 25-MAR-21 15:24:00 to 25-MAR-21 15:24:00 (EST-5)
Location: HICKORY TAVERN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported multiple trees blown down along Wilsontown Rd.

Thunderstorm Wind in UNION, SOUTH CAROLINA
From 25-MAR-21 16:03:00 to 25-MAR-21 16:09:00 (EST-5)
Location: DELTA
Magnitude: 75.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

NWS storm survey found multiple trees snapped or uprooted roughly along and just north of Highway 72 from the Newberry County line to near Carlisle.

Thunderstorm Wind in CHESTER, SOUTH CAROLINA
From 25-MAR-21 16:50:00 to 25-MAR-21 16:50:00 (EST-5)
Location: RICHBURG
Magnitude: 60.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported a section of roof torn off a  mobile home on Old Mill Rd.

Hail in UNION, SOUTH CAROLINA
From 25-MAR-21 16:10:00 to 25-MAR-21 16:10:00 (EST-5)
Location: SANTUC
Magnitude: 1.00 
Reported by: Public

Public reported quarter size hail.

Hail in LAURENS, SOUTH CAROLINA
From 25-MAR-21 15:36:00 to 25-MAR-21 15:36:00 (EST-5)
Location: WATTS MILLS
Magnitude: 1.00 
Reported by: Public

Public reported quarter size hail in the Wattsville community.

Tornado in LAURENS, SOUTH CAROLINA
From 25-MAR-21 15:59:00 to 25-MAR-21 16:02:00 (EST-5)
Location: RENNO
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

NWS storm survey found the path of a weak tornado along Highway 72 in extreme eastern Laurens County. Damage was limited to multiple trees uprooted or snapped in this very rural area.
A wildfire burned 337 acres in in Glade Township, Warren County from April 8-13, 2021. Rain showers during the early morning hours of April 13 aided firefighters in the containment of the wildfire.

Wildfire in WARREN, PENNSYLVANIA
From 08-APR-21 14:00:00 to 13-APR-21 11:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A wildfire burned 337 acres in the vicinity of 3735 Hemlock Road in Glade Township, Warren County from April 8-13, 2021.
Late in the afternoon, and through the evening hours on June 24 a cluster of storms over southeast Nebraska congealed into a line of thunderstorms that then pushed southeast into northeast Kansas with isolated severe weather consisting of 1 inch hail and isolated wind damage. Rainfall was the other big story with this event as some areas received 6 to 10 inches of rain. Despite the excessive rain, the flash flooding was rather minor.

Hail in WYANDOTTE, KANSAS
From 25-JUN-21 15:03:00 to 25-JUN-21 15:04:00 (CST-6)
Location: TURNER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in LEAVENWORTH, KANSAS
From 25-JUN-21 03:45:00 to 25-JUN-21 03:48:00 (CST-6)
Location: LOWEMONT
Magnitude: 56.00 EG
Reported by: Emergency Manager

A 30 foot by 40 foot barn was blown down and large tree limbs around 12 inches in diameter snapped due to strong winds.

Hail in JOHNSON, KANSAS
From 25-JUN-21 14:50:00 to 25-JUN-21 14:51:00 (CST-6)
Location: HOLLIDAY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public
With an area of high pressure to the west of New Mexico, relatively drier air began to filter into the state on July 9, 2021. This led to a downtrend in storm coverage across northern and central New Mexico as record breaking heat became the main story across western New Mexico. However, enough moisture and instability remained to provide for a round of isolated to scattered thunderstorms across central New Mexico. These were generally sub-severe, but one thunderstorm near Tererro in San Miguel County produced penny size hail that accumulated to about four inches deep.

Hail in SAN MIGUEL, NEW MEXICO
From 09-JUL-21 13:40:00 to 09-JUL-21 13:50:00 (MST-7)
Location: TERERRO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Estimated penny size hail fell from a strong thunderstorm near Tererro. The hail accumulated to about 4 inches deep, but no impacts were known.
Strong high pressure was the dominant weather pattern in July, which was occasionally suppressed by passing shortwaves and modest moisture for periods of scattered thunderstorms. Often times, the thunderstorm activity was followed by gusty winds and low relative humidity. Both lightning and human caused fires flourished in this environment.

Wildfire in BEAVERHEAD, MONTANA
From 16-JUL-21 12:13:00 to 31-JUL-21 23:59:00 (MST-7)
Reported by: Other Federal Agency

The Christensen Fire was discovered on July 16th in the Beaverhead/Deer Lodge National Forest. The fire grew to 5,442 acres and was zero percent contained on July 31st. The fire was located near the high profile Trailside and Alder Creek Fires.

Wildfire in BEAVERHEAD, MONTANA
From 17-JUL-21 12:27:00 to 31-JUL-21 23:59:00 (MST-7)
Reported by: Other Federal Agency

The lightning caused Black Mountain Fire was discovered on July 17th and grew to 1,021 acres by the end of the month. It was eventually managed by a type one incident team, along with the Alder and Trail Creek Fires, though its impacts were less than those major incidents.

Wildfire in MEAGHER, MONTANA
From 17-JUL-21 05:24:00 to 31-JUL-21 23:59:00 (MST-7)
Reported by: Other Federal Agency

The American Fork Fire was a lightning caused incident located in the Crazy Mountains. Only the northwest flank of this fire was located in Meagher County, with a majority of it residing over Park and  Sweet Grass Counties. By July 31st, the fire charred 14,397 acres and was only 10 percent contained at that time. This fire merged with the Ohearn Creek Fire on July 18th, 2021. At one point it became a part of the Divide Complex type 1 team managed by the Southern Area Incident Management team.
An upper low-pressure system tracked north of the region while the associated cold front moved through the Mid-South during the evening hours of April 7th. Clusters of storms formed into a poorly organized line that pushed east across the Mid-South. There were a few reports of damaging winds and flash flooding.

Thunderstorm Wind in UNION, MISSISSIPPI
From 07-APR-21 20:55:00 to 07-APR-21 21:00:00 (CST-6)
Location: BAKER
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Broadcast Media

Multiple trees knocked down on County Road 127 east of New Albany.

Thunderstorm Wind in UNION, MISSISSIPPI
From 07-APR-21 20:55:00 to 07-APR-21 21:00:00 (CST-6)
Location: KEOWNVILLE
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Broadcast Media

Mulitple trees were knocked down on Highway 30 near Keownville.

Flash Flood in TATE, MISSISSIPPI
From 07-APR-21 19:30:00 to 07-APR-21 21:30:00 (CST-6)
Location: COLDWATER ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Highway 51 in Coldwater was flooded with over 6 inches of water covering all four lanes.
High winds were observed across the ridges of northwest California, as well as exposed coastal areas in the vicinity of Crescent City. No damage was reported with these winds.

High Wind in COASTAL DEL NORTE, CALIFORNIA
From 08-NOV-21 20:56:00 to 08-NOV-21 22:31:00 (PST-8)
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Measured gusts of 54 knots at the Crescent City Airport ASOS during this time frame.
On the morning of the 29th a surface low and trough across eastern Colorado that moved south into the combined Panhandles during the afternoon.  Convergence associated with these features led to thunderstorm formation in the afternoon hours.  This boundary created at least one severe thunderstorm that produced damaging winds early on while another created some nuisance flooding 3 hours later.

Flood in RANDALL, TEXAS
From 29-AUG-21 17:15:00 to 29-AUG-21 17:15:00 (CST-6)
Location: AMARILLO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Considerable street flooding along Bell St.,  between 45th and Hillside. Several inches of  flowing water on sides of roads, with a few  inches in the middle.

Thunderstorm Wind in HUTCHINSON, TEXAS
From 29-AUG-21 14:22:00 to 29-AUG-21 14:22:00 (CST-6)
Location: FRITCH
Magnitude: 65.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Public

Video and photos received over social media showed considerable damage to some older storage buildings and boats off of highway 136 on the southwest side of Fritch. Time of event was estimated based on radar and local mesonet.
Dense fog developed in parts of the Virginia Piedmont early on August 8th. It dissipated shortly after sunrise.

Dense Fog in ORANGE, VIRGINIA
From 08-AUG-21 03:00:00 to 08-AUG-21 08:00:00 (EST-5)
Reported by: AWOS

Areas of dense fog with visibility below 1/4 mile developed.

Dense Fog in SPOTSYLVANIA, VIRGINIA
From 08-AUG-21 03:00:00 to 08-AUG-21 08:00:00 (EST-5)
Reported by: AWOS

Areas of dense fog with visibility below 1/4 mile developed.
A lightning storm during late July 2021 initiated the Monument wildfire in western Trinity County. This fire was contained by late October. The Monument Fire resulted in the loss of 50 homes, 13 businesses, and 41 outbuildings, with total damage costs of $12.7 million. In addition, debris removal, response, emergency protective measures, and road and bridge repairs cost $8.8 million.

Wildfire in NORTHERN TRINITY, CALIFORNIA
From 01-AUG-21 00:00:00 to 31-AUG-21 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Total damage costs from the Monument Fire were $21.5 million. That total includes $12.7 million from building damage and destruction, and $8.8 million from response, protective, and repair measures.
A storm system in the Gulf of Alaska sent a front northward onshore southern Alaska. The moisture associated with the front moving northward and a tight pressure gradient across the southern Copper River Basin resulted in strong gusty winds along with falling snow causing significant blowing snow conditions, especially through Thompson Pass. This resulted in very low visibilities to a half mile or less throughout the duration of the event.

Winter Storm in COPPER RIVER BASIN, ALASKA
From 19-NOV-21 16:04:00 to 20-NOV-21 04:05:00 (AKST-9)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Webcams through the FAA showed fairly low visibilities through Thompson Pass as a result of the falling snow and strong gusty winds. Conditions remained unchanged for hours resulting in treacherous and dangerous travel conditions through Thompson Pass from the afternoon of the 19th into the early morning of the 20th.