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September, 2021 Storm Report
 
Monthly Statistics
 
  Temperatures Precipitation
Site Max Min Avg Norm Dep Hi Lo Sum Norm Dep
Fayetteville (NW AR) 88.0 58.9 73.5 69.0 +4.5 95 41 1.93 4.26 -2.33
Harrison (NC AR) 85.1 60.4 72.8 70.0 +2.8 94 45 2.30 4.06 -1.76
Jonesboro (NE AR) 86.2 62.3 74.2 73.2 +1.0 92 49 2.75 3.30 -0.55
Fort Smith (WC AR) 91.5 65.3 78.4 74.8 +3.6 101 47 1.88 4.04 -2.16
Little Rock (C AR) 88.1 64.7 76.4 74.0 +2.4 100 50 1.10 3.01 -1.91
Texarkana (SW AR) 90.0 67.6 78.8 75.4 +3.4 99 54 0.95 3.60 -2.65
El Dorado (SC AR) 87.0 63.1 75.1 75.8 -0.7 96 49 1.75 3.23 -1.48
Pine Bluff (SE AR) 88.7 64.7 76.7 74.7 +2.0 101 52 2.28 3.09 -0.81

 

Temperatures across the state generally ranged from 1-3 degrees above normal. Statewide, rainfall amounts were below normal with the worst deficits noted across western Arkansas.

 

Record Temperatures
 
There were no records set during the month of September.

 

Quick Event Summary
 

At the start of the month, hot temperatures were in place across much of the state. At Little Rock, the high temperature on September 1st was 100°F. This ended a 1,143 consecutive day streak of no 100°F days from July 16, 2018 to August 31, 2021. A few strong thunderstorms developed on September 1st as well, with wind damage reported at Hot Springs from a microburst occurring during the afternoon hours. Damaging winds from isolated strong thunderstorms also downed trees in Dallas and Saline Counties that afternoon. 

Site Sep 1, 2021 High Temperature
Little Rock 100°
Hot Springs Arpt 102°
Fort Smith Arpt 101°
Mount Ida 101°

 

In the video: The satellite showed thunderstorms exploding from central into southern Arkansas during the afternoon of 09/01/2021. Some storms were severe, and produced mainly wind damage.

 

 

Deadly flooding from the remnants of Hurricane Ida swept away cars, submerged subway lines, swamped buildings, and grounded flights in New York and New Jersey.

The daily rainfall total at Central Park was 7.13 inches Wednesday, the fifth highest one day total on record. Newark logged 8.41 inches of rain, which was the most rain in one day ever.

Central Park observed 3.15 inches of rain in one hour, from 8:51 pm to 9:51 pm. That would make it the wettest hour in New York City record-keeping, dating back to 1870.

Between 6 and 10 inches of rain fell in a narrow swath from eastern Pennsylvania to Connecticut.

The NWS in New York City issues its first ever Flash Flood Emergency.

Isolated tornadoes were spawned, including one rated at least EF3 at Mullica Hill, NJ. The tornado heavily damaged or destroyed at least two dozen homes.

At least 50 people have died in the northeast.

48 hour rain 8 am CDT 09/02 WPC

 

The 90 day departure from average for precipitation was fairly high across much of the state. Many areas were experiencing a 2-4 inch deficit with the exception of far southeast Arkansas.
In the picture: Much of the state was experiencing 90 day rainfall deficits in the 1-4 inch range with the exception of southeast Arkansas. 
 

During the afternoon hours of September 8th, Tropical Storm Mindy formed across the northeast Gulf of Mexico centered roughly 90 miles WSW of Apalachicola, Florida. Heavy rain and TS force winds were expected across portions of southern Georgia and northern Florida.  

 

Tropical Storm Mindy developed as of 4 PM CDT, September 8, 2021. The storm was expected to travel across portions of southern Georgia and northern Florida.
In the picture: The first advisory for Tropical Storm Mindy issued at 4 PM CDT, September 8th. The storm was projected to take a path across southern Georgia and northern Florida. 
 

During the month of September, 9 systems were named in the Atlantic Basin. Nicholas became a tropical storm on September 12th and made his way onshore along the middle Texas Coast as a weak hurricane. Nicholas was the closest tropical system to Arkansas but remained well south of the state, providing no impacts. Click here for a complete summary of September tropical systems in the Atlantic Basin. 

 

Wildfire danger across the state was moderate as of September 15th. Burn bans were in place across portions of central and northcentral AR, 8 counties were under a burn ban.
In the picture: Wildfire danger was moderate across the entire state of Arkansas as of September 15th. Burn bans were in place for Perry, Faulkner, Conway, White, Van Buren, Cleburne, Stone and Sharp counties. 
 

Dry weather persisted through the middle of the month with wildfire danger and the number of county burn bans increasing. 

 

Temperature and Precipitation Trends
 

 

Temperatures at Little Rock (Pulaski County).
In the picture: Temperatures at Little Rock (Pulaski County). Click to enlarge.

 

 

Precipitation at Little Rock (Pulaski County).
In the picture: Precipitation at Little Rock (Pulaski County). Click to enlarge.

 

Precipitation across Arkansas.
In the picture: Precipitation across Arkansas.

 

Link of Interest
Detailed Monthly Statistics