Monthly Storm Reports and Storm Data
Storm Reports
Are you interested in what happened during a recent event? Check out the report below.
 
Severe Storms/Heavy Rain/Turning Colder on December 8-11, 2012
 
The pattern at 600 pm CST on 12/08/2012.
An active pattern setup on December 8th. A cold front pushed into Arkansas from the north and stalled. During the evening and into the wee hours of the 9th, thunderstorms initiated along and north of the front.
In the picture: The pattern at 600 pm CST on 12/08/2012. A front was stalled across central Arkansas, with cool/dry air to the north of the front and mild/moist conditions farther south. Given contrasting air masses, the front became a focus for thunderstorms and areas of heavy rain.

 

Areas of heavy rain were noted, especially in the central third of the state nearest the front. There were a few amounts over two inches. Golfball size hail pelted Hot Springs (Garland County) and Salem (Saline County).

The satellite showed showers and thunderstorms developing across northern and central Arkansas late on 12/08/2012.
In the picture: The satellite showed showers and thunderstorms developing across northern and central Arkansas late on 12/08/2012.

 

Link of Interest
Radar Loop (1001 pm CST on 12/08/2012 to 501 am CST on 12/09/2012)

 

The loop shows two images...(1) twenty four hour rainfall (north of a stalled front) through 600 am CST on 12/09/2012 and (2) rainfall in the next twenty four hours (ahead of a new cold front in the Plains) ending at 600 am CST on 12/10/2012.
In the picture: The loop shows two images...(1) twenty four hour rainfall (north of a stalled front) through 600 am CST on 12/09/2012 and (2) rainfall in the next twenty four hours (ahead of a new cold front in the Plains) ending at 600 am CST on 12/10/2012.
 

Twenty four hour rainfall through 600 am CST on the 9th included 2.84 inches at Blakely Mountain Dam and 2.25 inches at Hot Springs National Park (both locations in Garland County). At North Little Rock (Pulaski County), 1.52 inches was measured, with 1.30 inches at McCrory (Woodruff County), 1.18 inches at Calamine (Sharp County) and 1.13 inches at Cabot (Lonoke County), Pocahontas (Randolph County) and Black Rock (Lawrence County).

 

There were two episodes during this event where the weather became active along fronts ("clash zones").

Precipitation became more spotty as the morning progressed on the 9th. The stalled front lifted to the north, and temperatures warmed up. Across the southeast half of the state, readings made it into the 70s.

In the picture: There were two episodes during this event where the weather became active along fronts ("clash zones"). A stalled front brought heavy rain and some hail to the northern half of Arkansas late on the 8th/early on the 9th. Later in the afternoon, the front lifted to the north and was followed by a new cold front from the west. The new front kicked off another round of storms that produced hail and damaging winds mainly in the southeast half of the state.

 

As the mercury surged, a storm system dragged a new cold front into the region from the west. The system was dynamic/complex, with snow from South Dakota into Minnestoa and Wisconsin, and a concern for tornadoes in our neck of the woods.

While a Tornado Watch was issued for Arkansas during the afternoon of 12/09/2012, Blizzard Warnings and Winter Storm Warnings were posted for portions of the northern Plains and upper Midwest.
In the picture: While a Tornado Watch was issued for Arkansas during the afternoon of 12/09/2012, Blizzard Warnings and Winter Storm Warnings were posted for portions of the northern Plains and upper Midwest.

 

A simulated radar showed thunderstorms firing up in the southeast half of Arkansas during the late afternoon of 12/09/2012.
Models showed storms developing mainly in southern and eastern Arkansas during the afternoon, and becoming more widespread with time (into the evening). That's exactly what happened.
In the picture: A simulated radar showed thunderstorms firing up in the southeast half of Arkansas during the late afternoon of 12/09/2012. Precipitation became more widespread as it reached the Mississippi River and areas to the east.

 

While there were some brief torrential downpours, storms moved quickly and did not tend to produce a lot of rain. There were some amounts over an inch, especially in the southeast. Twenty four hour totals through 600 am CST on the 10th included 1.83 inches at Eudora (Chicot County), 1.53 inches at Star City (Lincoln County), 1.48 inches at Portland (Ashley County), 1.17 inches at El Dorado (Union County) and 1.15 inches at Georgetown (White County).

 

It was initially believed an isolated tornado was spawned near Imboden (Lawrence County). A hay barn was damaged and a roof was torn off of a partially built home. After a survey of the area by the National Weather Service, it was determined that straight-line winds (a downburst) affected the area with up to 70 mph winds.

In the picture: Storm reports on 12/09/2012 and early on the 10th. The graphic is courtesy of the Storm Prediction Center in Norman, OK.

 

There was a similar situation four to five miles west of Viola (Fulton County). At this location, the roof was removed from a duplex, and at least three mobile homes were heavily damaged. Several barns and outbuildings were also hit. Again, 70 to 80 mph straight-line winds were the culprit.

 

 

Quarter size hail was reported at Concord (Cleburne County), near Higden (Cleburne County) and in Tuckerman (Jackson County).

Much colder air followed the new front. As the midnight hour approached, it was already at or below freezing at Fayetteville (Washington County), Harrison (Boone County) and Highfill (Benton County). There was just enough lingering moisture to yield a few snow flurries across the northern counties early on the 10th.

 

Temperatures at 300 pm CST on 12/10/2012. During the afternoon, much of the region was in the 30s and 40s...even with sunshine.
In the picture: Temperatures at 300 pm CST on 12/10/2012.

 

Readings dipped into the teens and 20s by dawn on the 11th. The low at Waldron (Scott County) was a chilly 13 degrees, with 14 degrees at Evening Shade (Sharp County), Gilbert (Searcy County), Lead Hill (Boone County) and Mammoth Spring (Fulton County).

 

Storm Reports
There were several reports of hail and damaging winds on December 9th, 2012. For a look at some reports, click here.
 
Link of Interest
Plot Reports
Preliminary reports of severe weather in the Little Rock County Warning Area on December 9, 2012 (in red).
Submit a storm report.
In the picture: Preliminary reports of severe weather in the Little Rock County Warning Area on December 9, 2012 (in red).

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