2 pm Update: Rain has ended over most of SW AR that has experienced flooding, however, runoff continues: A Flash Flood Warning that was issued earlier for parts of Howard, Hempstead, and Nevada counties has been extended. Runoff from a radar estimated six to sixteen inches of rain in the warned area continues. Law enforcement officials inform the NWS that there are still numerous roads over parts of Howard, Hempstead, and Nevada counties are still flooded, and/or washed out. Click here to get the latest updates on road closures from the IDrive Arkansas website here.
Pinpoint Doppler shows the heaviest rain has moved to the east of the ArkLaTex. We will likely continue to see scattered storms pop up through the afternoon and early evening hours, but most of any rain will likely fall to the south of the flood-affected areas. According to the IDrive Arkansas website, I-30 was closed at one point but is now open. Click here to get the latest updates on road closures from the IDrive Arkansas website here.
12 pm Update: Rain ending but flood producing runoff continues: A Flash Flood Warning continues for parts of Howard, Hempstead, and Nevada counties until 2 pm. Radar shows that the heaviest of the rain is moving east out of the ArkLaTex. Runoff from the more than a foot of rain will continue for the next several hours. As of this update, numerous roads in the Flash Flood Warning area are closed. Click here to get the latest updates on road closures from the IDrive Arkansas website here.
10:30 a.m. Tuesday update: There have been a number of water rescues, closed roadways, roads washed out, and home flooding across the northern edge of Howard, Hempstead and Nevada counties.
The Flash Flood Warning for these areas has been extended until 2 p.m.
Unfortunately rain continues to develop in these areas as of 10:30 a.m.
8:15 a.m. Tuesday update: Significant flooding is likely occurring across Howard county where radar estimates over a foot of rain has fallen. Forecast models show the rain continuing in the short term, and may see more this afternoon. We could wind up with accumulations over 15″.
So far we know of major flooding on Highway 371 between Nashville and Prescott (a 3 county span). US 278 in Howard County also seeing significant flooding.
The rain continues to mainly impact southern Arkansas, but we have had isolated to scattered storms move over east Texas and Louisiana.
A Flash Flood Watch is in effect for all of southern Arkansas, McCurtain county in Oklahoma, and Bowie county in northeast Texas through this evening. Areas in the watch could receive 2 to 4 inches of rainfall, and some areas could receive over 6 inches of rain.
High temperatures will be in the mid to upper 80s across the northern ArkLaTex, including most of southern Arkansas. We will see the 90-degree heat return to much of east Texas and Louisiana today.
A ridge of high pressure will build into the region as what is left of Barry is swept away tomorrow. This will bring a return to mid July, as highs will be in the mid 90s Wednesday through the weekend, with heat index values pushing or exceeding 105 degrees, which means the heat advisories may make a return due to the high humidity. The pattern will be mainly dry with little chance for any afternoon rain relief until late in the weekend and early next week.