Adds latest prices

By Scott DiSavino

March 19 (Reuters) - U.S. natural gas futures jumped about 5% to a one-week high on Wednesday on record flows to liquefied natural gas $(LNG)$ export plants and a second drop in daily output.

Front-month gas futures NGc1 for April delivery on the New York Mercantile Exchange rose 19.5 cents, or 4.8%, to settle at $4.247 per million British thermal units (mmBtu), their highest close since March 11.

The price increase occurred despite forecasts for less demand over the next two weeks than previously expected with the weather forecast to remain seasonally mild through early April.

That decline in demand should reduce the amount of gas utilities need to pull from storage in coming weeks.

Gas stockpiles, however, were already around 11% below normal levels for this time of year after extreme cold weather in January and February forced energy firms to pull large amounts of gas out of storage, including record amounts in January. [EIA /GAS] NGAS/POLL

SUPPLY AND DEMAND

Financial firm LSEG said average gas output in the Lower 48 U.S. states rose to 105.8 billion cubic feet per day (bcfd) so far in March, up from a record 105.1 bcfd in February.

On a daily basis, output over the past two days was on track to drop by around 2.8 bcfd to a preliminary three-week low of 103.9 bcfd on Wednesday.

Traders said the daily drop was likely related to spring pipeline maintenance in Texas and other states, which helped cause spot prices at the Waha Hub NG-WAH-WTX-SNL in West Texas to turn negative in recent days. The traders noted that preliminary output data is often updated later in the day.

Meteorologists projected weather in the Lower 48 states would remain mostly near normal through April 3.

LSEG forecast average gas demand in the Lower 48, including exports, will rise from 106.7 bcfd this week to 109.8 bcfd next week. Those forecasts were lower than LSEG's outlook on Monday.

The amount of gas flowing to the eight big U.S. LNG export plants rose to an average of 15.7 bcfd so far in March, up from a record 15.6 bcfd in February, as new units at Venture Global's VG.N 3.2-bcfd Plaquemines LNG export plant under construction in Louisiana enter service.

The U.S. became the world's biggest LNG supplier in 2023, surpassing Australia and Qatar, as surging global prices fed demand for more exports due in part to supply disruptions and sanctions linked to Russia's 2022 invasion of Ukraine.

Gas was trading around $14 per mmBtu at both the Dutch Title Transfer Facility (TTF) TRNLTTFMc1 benchmark in Europe and the Japan Korea Marker (JKM) JKMc1 benchmark in Asia. NG/EU

(Reporting by Scott DiSavino; Editing by Paul Simao and Diane Craft)

((scott.disavino@thomsonreuters.com; +1 332 219 1922; Reuters Messaging: scott.disavino.thomsonreuters.com@reuters.net/))

For gas data on the LSEG terminal type ENERGY in the search bar and then go to the GAS drop down and the NORTH AMERICA drop down.

For Interactive Map, type 'Interactive Map' in the box at upper left of the LSEG terminal

For graphics on Baker Hughes rig counts, see: http://graphics.thomsonreuters.com/15/rigcount/index.html

For next-day SNL U.S. gas prices, see: 0#SNL-NG

For next-day SNL U.S. power prices, see: 0#SNL-PWR

For U.S. natgas price and storage polls, see: NGAS/POLL

For U.S. nuclear power outages, see: NUKE/

For U.S. Northwest hydro power report, see: NWRFC

For U.S./Canada natural gas rig count vs Henry Hub futures price, see: http://tmsnrt.rs/2eT9k44

For the U.S. natural gas speed guide, see: USGAS

For the U.S. power speed guide, see: USPOWER

To determine CFTC managed money net position add (NYMEX Henry Hub options and futures combined 3023651MNET) plus (ICE Henry Hub options and futures combined 3023391MNET divided by four) plus (NYMEX Henry Hub swaps options and futures combined 303565BMNET divided by four) plus (NYMEX Henry Hub penultimate gas swaps 303565CMNET divided by four)

NYMEX Henry Hub options and futures combined 0#3CFTC023651

NYMEX Henry Hub futures only 0#1CFTC023651

ICE Henry Hub options and futures combined 0#3CFTC023391

NYMEX Henry Hub swaps options and futures combined 0#3CFTC03565B

NYMEX Henry Hub Penultimate gas swaps 0#3CFTC03565C