News from the World Meteorological Organization and WMO Members.
Geneva, Switzerland
- Tweets 19,761
- Following 1,070
- Followers 209,823
- Likes 12,756
Pinned Tweet
Rivers across the globe in 2025 had one of the driest years in more than 3 decades.
The WMO Global #StateOfWater Report 2025 shows a continuation of the long-term decline in Earth’s freshwater storage and in glacier retreat.
🔴 OUT NOW: bit.ly/WMOStateOfWater2025pr
2
75
111
17,072
2025 was the 4th consecutive year of widespread glacier loss across all regions.
Each bar shows the global glacier mass change in one hydrological year, from 1976 onwards. 🔵 = ice gain; 🔴 = ice loss.
📖 Read more: bit.ly/WMOStateofWater2025Re…
#StateofWater
1
24
48
4,438
Today is #WorldMaritimeDay 🚢
Learn more about how the WMO community works to keep ships and coastal communities safe through accurate marine forecasts and early warnings.
🔗 bit.ly/WMOMarinesServices
1
19
3,179
It's been an unusually quiet Atlantic hurricane season - partly due to El Niño. But not in the Pacific.
🌀 Hurricane Polo intensified rapidly in the Eastern Pacific and is currently at category 4 strength, with maximum sustained winds near 240 km/h.
🔗 Hurricanes.gov
6
50
144
9,705
WMO SG Celeste Saulo joins @EU_Commission President @vonderleyen & Canadian Prime Minister @MarkJCarney at #UNGA for the high-level pledging event of the OceanEye International Alliance for the Global Ocean Observing System.
23 Sept | 1000 EDT
🔴 LIVE via webtv.un.org/en/asset/k1i/k1…
7
19
3,412
World Meteorological Organization retweeted
Radio spectrum supports #weather and #climate observations
Learn more at the launch of the new joint @ITU @WMO Handbook and join the global discussions on #spectrum use for meteorology
📍 Geneva | 📆 28–30 Sept 2026
✍️Register today: shorturl.at/fi1Ns
ALT Global ITU/WMO Seminar on Spectrum use for meteorology: challenges, opportunities and evolving requirements 28-30 September 2026, Geneva, Switzerland
2
11
1,272
World Meteorological Organization retweeted
🌡️ Cities are on the front lines of a warming world.With El Niño confirmed and climate change intensifying heat events, urban areas face amplified health risks and growing threats to the most vulnerable. 🧵
#UNGA81 #ElNiño
📸 @kiara_worth
3
10
1,078
Today, WMO Secretary-General, Celeste Saulo joined world leaders at the 81st @UN General Assembly.
🎥 Watch as SG Saulo shares WMO role in building trust through reliable scientific data sharing across the world.
7
25
3,655
At #UNGA81, WMO SG Celeste Saulo joined @UN_Partnerships #GoalsLounge to discuss preparing cities for extreme heat.
Agree in advance: 1) what threshold triggers action, 2) who acts, 3) who's reached first.
📹 bit.ly/3V6jM25
#EarlyWarningsforAll
1
6
20
3,460
Today at #UNGA, join WMO Secretary-General Celeste Saulo and speakers to explore what it takes to prepare cities against the risks of extreme heat.
🗓️ 21 September | 1400 EDT
🔴 Live from @UN_Partnerships #GoalsLounge: webtv.un.org/en/asset/k19/k1…
15
40
3,908
Forecasts for the weeks ahead inform disaster preparedness, agriculture, water management, energy supply, public health & humanitarian operations.
Join WMO & @ECMWF to explore how AI advances open new possibilities for sub-seasonal forecasting.
Register: bit.ly/4cXLSTf
3
29
98
6,340
“The powerful 2023/2024 El Niño contributed to 2024 being the warmest year on record. We shouldn't be surprised if this record is broken,” said WMO SG Celeste Saulo.
But, we have the forecasts and foresight to save lives and livelihoods.
bit.ly/4x1LoCD
5
52
116
10,246
2025 was one of the driest years for rivers globally in 35 years. Over 36% of global basin areas experienced below-normal flows. Our declining freshwater storage poses serious risks.
Explore the findings of the WMO global #StateOfWater report 2025: bit.ly/WMOStateOfWater2025pr
7
111
213
10,557
World Meteorological Organization retweeted
When it comes to #ClimateAction, the road ahead is clear:
🟢 Cut emissions
🟢 Protect communities
🟢 Build stronger economies
Across 100+ countries, the UN's #ClimatePromise is helping turn climate ambition into real action.
Learn more: go.undp.org/climatepromisefo…
95
197
374
58,826
The ozone layer continues to heal 🌍
The WMO Ozone & UV Bulletin released on #OzoneDay shows that the Antarctic ozone hole in 2025 was one of the smallest in decades. However, measurements also show a significant increase in days with high UV exposure.
↪️ bit.ly/WMOOzoneUVBulletin202…
5
35
84
6,299
Open-source innovations developed in Africa are strengthening #EarlyWarnings in the region and across the world! 💻 🚨
On the Intl Day of Science, Technology & Innovation for the South, here are 3️⃣ tools transforming climate information services.
↪️ climtech.africa/
2
12
60
5,209
We're hiring!
WMO is looking for professionals from diverse backgrounds and areas of expertise interested in a career in meteorology, hydrology, geophysical sciences, and international cooperation.
Check out all vacancies here 👉 bit.ly/4elYNiX
41
167
21,832
Earth just had the hottest August on record, accdg to @CopernicusECMWF C3S & @NOAA reports.
El Niño was one of the drivers of the climate in August. It also influenced global tropical cyclone activity, as well as heavy rainfall & floods in some countries.
bit.ly/4imPAJJ
11
173
294
16,461
Read the WMO Air Quality & Climate Bulletin and explore new findings on:
🔍 Global particulate matter concentrations 2025
☁️ Aerosol–cloud interactions
🔥 Wildfire emissions & global health
🔬 Microplastics
🌡️ Heatwaves & ground-level ozone pollution
bit.ly/3UBN1cV
2
66
149
8,009