Australian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Severe Thunderstorm Warning
for Heavy Rainfall
for parts of North West Slopes and Plains Forecast District.
Issued at 11:07 pm Sunday, 17 November 2024.
Severe thunderstorms contracting to southern North West Slopes and Plains.
Weather Situation
A surface trough ahead of a vigorous cold front is producing severe thunderstorms over northeast NSW. This activity is expected to shift towards the east and ease overnight tonight.
HEAVY RAINFALL for the following areas:
North West Slopes and Plains
Severe thunderstorms are likely to produce heavy rainfall that may lead to flash flooding in the warning area over the next several hours. Locations which may be affected include Tamworth and Quirindi.
Severe thunderstorms are no longer occurring in the Hunter, Central Tablelands, Central West Slopes and Plains and Upper Western districts and the warning for these districts is CANCELLED.
90 km/h wind gust was recorded at Moss Vale at 5:31 pm
92 km/h wind gust was recorded at Parkes Airport at 4:56 pm
98 km/h wind gust was recorded at Cobar Airport at 2:55 pm
33.6mm rainfall in 28 minutes to 21:59 AEDT was recorded at Purlewaugh.
Cancellation for the following areas:
Central Tablelands,Hunter,Central West Slopes and Plains,Upper Western
The State Emergency Service advises that people should:
* Keep clear of creeks and storm drains.
* Don't walk, ride your bike or drive through flood water.
* If you are trapped by flash flooding, seek refuge in the highest available place and ring 000 if you need rescue.
* Be aware that run-off from rainfall in fire affected areas may behave differently and be more rapid. It may also contain debris such as ash, soil, trees and rocks.
* After bushfires, heavy rain and the loss of foliage can make the ground soft and heavy, leading to a greater chance of landslides.
* Unplug computers and appliances.
* Avoid using the phone during the storm.
* Stay indoors away from windows, and keep children and pets indoors as well.
* Stay vigilant and monitor conditions. Note that the landscape may have changed following bushfires.
* For emergency help in floods and storms, ring the SES (NSW and ACT) on 132 500.
The next warning is due to be issued by 2:10 am Monday.
Warnings are also available through TV and Radio broadcasts, the Bureau's website at www.bom.gov.au or call 1300 659 210. The Bureau and State Emergency Service would appreciate warnings being broadcast regularly.
Forecast
Merriwa (32.1394°S, 150.3557°E, 246m AMSL) set as my default location ›
-
My MLA
-
Current condition
TODAY
18° 27° showers easing Chance of rain: 70% Likely amount: 1-5mm First
light
Last light Sunrise Sunset 5:20am EDT 5:47am EDT 7:37pm EDT 8:04pm EDT NOW17.2° Feels Like: 17.7° Relative Humidity: 97% Dew: 16.7° Wind: S 9km/h Gust: 11km/h Rainfall since 9am: 14.0mm Pressure: 1014.1hPa -
Today Weather
MerriwaNow19.1°cFeels Like:18.8°Wind:N 19km/hGusts:20km/hHumidity:100%
18°Min27°MaxToday in MerriwaCloudy. High chance of showers, most likely in the morning and afternoon. The chance of a thunderstorm. Winds NW 15 to 25 km/h tending NW/SW 15 to 20 km/h in the morning then tending E/SE in the late afternoon. Overnight temperatures falling to between 17 and 20 with daytime temperatures reaching 23 to 29.Tomorrow
12°Min26°MaxCloudy. Slight chance of a shower, most likely in the morning and early afternoon. Winds E/SE 15 to 25 km/h becoming light in the late evening. Overnight temperatures falling to between 12 and 16 with daytime temperatures reaching the low to mid 20s. -
Radar
-
Popup Radar
-
Warnings
-
Next 48 Hours
Next 48 Hours
-
7 day forecast
Today: Cloudy. High chance of showers, most likely in the morning and afternoon. The chance of a thunderstorm. Winds NW 15 to 25 km/h tending NW/SW 15 to 20 km/h in the morning then tending E/SE in the late afternoon. Overnight temperatures falling to between 17 and 20 with daytime temperatures reaching 23 to 29.
Forecast for Merriwa (32.1394°S, 150.3557°E, 246m AMSL) Mon Tue Wed Thu Fri Sat Sun Summary 
Minimum 18° 12° 11° 11° 9° 10° 11° Maximum 27° 26° 28° 27° 28° 31° 34° Chance of rain 70% 20% 40% 20% 5% 5% 10% Likely amount 1-5mm < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm UV index Very High Extreme Very High Extreme Extreme Extreme Extreme Fire Danger Rating Moderate Moderate Moderate Moderate - - - Frost risk Nil Nil Nil Nil Nil Nil Nil 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm Wind speed 18
(km/h)15
(km/h)18
(km/h)22
(km/h)9
(km/h)18
(km/h)14
(km/h)24
(km/h)11
(km/h)18
(km/h)7
(km/h)14
(km/h)8
(km/h)15
(km/h)Wind direction NW W SSE SSE S S SSE SSE SSE SSE SSW SSE W S Relative humidity 82% 51% 72% 48% 73% 43% 67% 40% 66% 33% 70% 29% 58% 21% Dew point 19°C 14°C 14°C 13°C 14°C 13°C 13°C 11°C 12°C 10°C 14°C 10°C 14°C 8°C -
28 Day Rainfall forecast
-
12 Month Rainfall Forecast
Merriwa Rain Forecast
Merriwa 12-month Rainfall ForecastNovDecJanFebMarAprMayJunJulAugSepOct20242025777777687466105012 - 34 - 78 - 910Well below normalBelow normalNear normalAbove normalWell above normalIssue Notes - Issued Oct 1
ENSO status: La Niña Watch. IOD status: Neutral. SAM status: Negative. Trending slightly negative. The El Niño Southern Oscillation (ENSO) is in a La Niña Watch, meaning there is approximately a 50% chance of a La Niña developing this year. Overall, models are now starting to look more like La Niña, with more widespread ocean cooling occurring in the South Pacific, helped by the consistently strong trade winds. While these are good signs that La Niña is starting to develop, a declaration would likely happen no earlier than November, meaning this is more likely to be a late and weaker event if it does eventuate. A La Niña typically increases rainfall over northern and southeastern Australia during spring, but has little effect for southwestern WA. The Indian Ocean Dipole (IOD) is in a neutral phase and is now unlikely to develop into either phase this spring. Conditions are closer to a negative IOD at the moment, so there may be some minor increases in the frequency of northwest cloudbands impactingAustralia. A neutral IOD tends to bring a small increase in spring rainfall for southwest WA, but has little effect elsewhere. The Southern Annular Mode (SAM) is in a negative phase, continuing on from the initial sudden Stratospheric Warming (SW) events over Antarctica since mid-July. These events increase the chances of negative SAM events, but are having a lesser effect moving forward in October. A negative SAM increases the frequency of cold fronts. During spring, this increases rainfall over western Tas and southern Vic, but decreases rainfall over eastern Australia. Rainfall outlooks are showing close to average for most of the country during October, with a higher chance of above average rainfall for northern and eastern Australia, increasing further into November and December. Models are also hinting that rainfall is more likely to arrive in the form of showers and thunderstorms, rather than broad rainbands, meaning rainfall in practice will likely be hit-and-miss for most of Australia thisspring.
-
Popup - Daily historical
-
Long range rainfall forecast
-
Past 5 Days
Merriwa Past 5 Days
This MonthMinimum Maximum Rainfall Wednesday
Nov 1311.7 °C 31.5 °C 0.0 mmThursday
Nov 1411.2 °C 28.1 °C 10.2 mmFriday
Nov 1516.2 °C 23.1 °C 0.0 mmSaturday
Nov 1616.7 °C 29.3 °C 0.0 mmSunday
Nov 1713.9 °C 33.4 °C 0.0 mmLegend -
Almanac
Almanac
Merriwa minimum temp history (32.1394°S, 150.3557°E, 246m AMSL) MAXIMUM TEMPERATURE MINIMUM TEMPERATURE Hottest this month 37.2° 07/11/2024 Coldest this month 7.1° 09/11/2024 Hottest on record 43.0 23/11/2014 Coldest on record 2.5 01/11/2016 Hottest this year 39.6° 01/03/2024 Coldest this year -3.2° 29/06/2024 Long term average 27.9° Long term average 12.2° Average this month 29.7° Average this month 13.1° Hottest November On Record Avg. max. temp. 32.4° 2014 Coldest November on record Avg. min. temp. 9.9° 2016 Merriwa rainfall history (32.1394°S, 150.3557°E, 246m AMSL) RAINFALL Wettest This Month 10.2mm 14/11/2024 Total This Month 21.0mm
4.0 daysLong Term Average 60.9mm 7.8 days Wettest November on record 160.2mm 2011 Driest on record 0.0mm 1980 -
Year to Date
Merriwa Year To Date
Average Rainfall To Nov 525.5mm 74.4 day(s) Total For 2024 628.2mm 104.0 day(s) Total To This Day 2023 288.6mm 70.0 day(s) Wettest Day 48.0mm Jun 1 Lowest Temperature -3.2°C Jun29 Highest Temperature 39.6°C Mar 1 -
Popup - Radar
Weather Radar for Australia
Australia Radars
- Adelaide
- Adelaide Airport
- Adelaide Sellicks
- Albany
- Alice Springs
- Bairnsdale
- Bowen
- Brewarrina
- Brisbane
- Brisbane Airport
- Brisbane Marburg
- Broadmeadows
- Broome
- Cairns
- Cairns Airport
- Canberra
- Carnarvon
- Ceduna
- Coffs Harbour
- Dampier
- Darwin
- Darwin Airport
- Emerald
- Esperance
- Eucla
- Geraldton
- Giles
- Gladstone
-
Popup - Monthly historical
-
Climatology
Climate History
Merriwa Climatology
Merriwa Long-Term Averages
Long-Term Averages Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann Mean Max (°C) 31.4 30.1 27.8 23.6 19.7 16.3 16.2 18.2 21.8 25.3 27.9 29.8 24.0 Mean Min (°C) 16.8 15.7 13.8 9.4 5.3 3.8 2.4 3.0 5.2 8.6 12.2 14.5 9.1 Mean Rain (mm) 78.3 58.0 58.0 34.9 37.0 39.3 36.7 33.2 38.4 50.8 60.9 72.9 593.5 Mean Rain Days 7.9 6.4 6.4 5.1 6.4 7.4 7.3 6.4 6.5 6.8 7.8 7.5 81.2
