Agro-Meteorological Bulletin for the First 15-Day Period (1st-15th) of June, 2023
ISSUED AT: 10:19 AM
Date: Thursday 1st of June 2023
Figure 1.
Figure 2.
Summary:
Moderate to high rainfall amounts are expected during the fifteen days.
Wet days with rainfall amounts ranging between 10-45 mm are expected during the 2nd, 7th, 9th, 12th and 13th while relatively wet days with rainfall amounts less than 8.0 mm are expected during the 1st, 3rd, 4th-6th, 8th, 10th-11th and 14th-15th of June 2023.
Trinidad and Tobago:
Wet days with rainfall amounts ranging between 10-45mm are expected during the 2nd, 7th, 9th, 12th and 13th while relatively wet days with rainfall amounts less than 8.0 mm are expected during the 1st, 3rd, 4th-6th, 8th, 10th-11th and 14th-15th of June 2023. The daily rainfall totals are forecast to range between 0.0 mm to 45.0 mm across different farmlands across the islands, especially along the eastern coastal areas of Trinidad, and Tobago with fifteen-day rainfall totals ranging between 60.0 mm and 100.0 mm in Trinidad, and 100 mm in Tobago.
Temperatures & Winds:
The maximum temperatures are expected to remain warm, with daily temperatures ranging between 31.0oC to 33.0oC throughout the period. However, temperatures are expected to have a real-feel or feels-like between 31.0oC to 38.0oC on most days. The minimum temperatures will range between 24.5oC to 25.5oC during most nights/early mornings, dropping lower in rural areas and valleys.
In general, mostly easterly winds of an average speed of 20 km/h are expected, however, gusts can range between 30-50 km/h. Moderate to high rainfall totals, mostly low to moderate speeds, warm days, and warmer feels-like temperatures will sustain average evapotranspiration rates in crops ranging between 2.0 to 10.0 mm per day.
Moisture levels:
Over the fifteen-day period across Trinidad and Tobago, moisture levels are expected to be moderate to high, with average daytime relative humidity values in the mid-50s to mid-90s, in terms of percentage.
Agro-Meteorological Bulletin for the First 15-Day Period (1st-15th) of June, 2023
ISSUED AT: 10:19 AM
Date: Thursday 1st of June 2023
Definitions used in the forecast and bulletin:
| Term | Meaning | |
|---|---|---|
| Dekad | 10 day rainfall measuring period | |
| Rain Day | A day with 1.0 mm or more of rainfall amount | |
| Wet Day | A day with 10.0 mm or more rainfall amount | |
| Extremely Wet Day | A day with 25.0 mm or more of rainfall amount | |
| Normal Rainfall | Between 75% and 125% of the average | |
| Below Normal Rainfall | Rainfall below 75% of the average | |
| Above Normal Rainfall | Rainfall in excess of 125% of the average | |
| Much Below Normal Rainfall | Rainfall below 50% of the average | |
| Much Above Normal Rainfall | Rainfall above 150% of the average | |
| Scanty Rainfall | Less than 1 mm | |
| Moderate Rainfall | 1-10 mm | |
| Heavy Rainfall | 10-50 mm | |
| Very Heavy Rainfall | Greater than 50 mm | |
| Probability of 1-30 % | Low Chance | |
| Probability of 30-70 % | Moderate Chance | |
| Probability greater than 70 % | High Chance | |
| Term | Amount of Rain | Type of day |
| Scanty Rainfall | Less than 1 mm | Relatively dry day |
| Moderate Rainfall | 1-10 mm | Relatively wet day |
| Heavy Rainfall | 10-50 mm | Wet day |
| Very Heavy Rainfall | Greater than 50 mm | Excessively wet day |
Weather Bulletin for Farmers and Livestock Producers of Trinidad and Tobago for the 15-day period (1st-15th) of June 2023.
|
Date |
Weather |
Temperature |
Heat Real Feel |
Day Moisture (Relative) (Humidity) |
Wind |
||
|
1st |
60% chance of showers
|
1.0 to 8.0 mm of rainfall is possible |
Partly cloudy with showers |
Warm |
Feels like 31-35oC |
58-73% |
Weak south-easterly 10 km/h Gust 20 km/h |
|
2nd |
75% chance of showers
|
10.0 to 25.0 mm of rainfall is possible |
Partly cloudy to cloudy with light/mod showers and T-showers |
Warm |
Feels like 28-32oC |
84-94% |
Moderate easterly 15 km/h Gust 30 km/h |
|
3rd |
60% chance of showers
|
1.0 to 8.0 mm of rainfall is possible |
Partly cloudy with showers |
Warm |
Feels like 31-36oC |
62-73% |
Weak south-easterly 10 km/h Gust 20 km/h |
|
4th |
60% chance of showers
|
1.0 to 5.0 mm of rainfall is possible |
Partly cloudy with showers |
Warm |
Feels like 31-36oC |
56-71% |
Weak south-easterly 10 km/h Gust 20 km/h |
|
5th |
60% chance of showers
|
1.0 to 5.0 mm of rainfall is possible |
Partly cloudy with showers |
Warm |
Feels like 31-36oC |
57-68% |
Weak south-easterly 10 km/h Gust 20 km/h |
|
6th |
60% chance of showers
|
1.0 to 8.0 mm of rainfall is possible |
Partly cloudy with showers |
Warm |
Feels like 32-36oC |
55-61% |
Weak south-easterly 10 km/h Gust 20 km/h |
|
7th |
75% chance of showers
|
15.0 to 45.0 mm of rainfall is possible |
Partly cloudy to cloudy with light/mod showers and T-showers |
Warm |
Feels like 28-32oC |
84-94% |
Weak easterly 10 km/h Gust 20 km/h |
|
8th |
45% chance of showers
|
1.0 to 4.0 mm of rainfall is possible |
Partly cloudy with light/mod showers |
Warm |
Feels like 32-35oC |
55-63% |
Weak northeasterly 10 km/h Gust 20 km/h |
|
9th |
75% chance of showers
|
15.0 to 45.0 mm of rainfall is possible |
Partly cloudy to cloudy with light/mod showers and T-showers |
Warm |
Feels like 28-32oC |
92-95% |
Weak northeasterly 10 km/h Gust 20 km/h |
|
10th |
45% chance of showers
|
1.0 to 5.0 mm of rainfall is possible |
Partly cloudy with light/mod showers |
Warm |
Feels like 31-35oC |
69-78% |
Weak south-easterly 10 km/h Gust 20 km/h |
|
11th |
45% chance of showers
|
Less than 5.0 mm of rainfall is possible |
Partly cloudy with showers |
Warm |
Feels like 31-35oC |
65-74% |
Weak south-easterly 10 km/h Gust 20 km/h |
|
12th
|
65% chance of showers
|
10.0 mm than 20.0 mm of rainfall is possible |
Partly cloudy with showers |
Warm |
Feels like 32-38oC |
61-73% |
Moderate easterly 10 km/h Gust 20 km/h |
|
13th
|
65% chance of showers
|
10.0 mm than 20.0 mm of rainfall is possible |
Partly cloudy with showers |
Warm |
Feels like 30-36oC |
64-82% |
Weak south-easterly 10 km/h Gust 20 km/h |
|
14th |
65% chance of showers
|
1.0 to 5.0 mm of rainfall is possible |
Partly cloudy with showers |
Warm |
Feels like 33-38oC |
63-73% |
Weak south-easterly 10 km/h Gust 20 km/h |
|
15th |
65% chance of showers
|
1.0 to 5.0 mm of rainfall is possible |
Partly cloudy with showers |
Warm |
Feels like 32-38oC |
57-67% |
Weak south-easterly 10 km/h Gust 20 km/h |
Max/Min Temperatures oC 31.0/24.5
Trinidad Rainfall Forecast for the 15-Day period of June (1st –15th) 2023.
Figure 1. Rainfall map of Trinidad showing expected mean rainfall totals for districts across Trinidad during the 15-day period (1st-15th) June 2023 and percentage probability of occurrence.
Eastern, and North-Eastern areas
Moderate chance (65%) of mean daily rainfall up to 7.2 mm.
South-Eastern areas
Moderate chance (68%) of mean daily rainfall up to 9.5 mm.
Southern areas
Moderate chance (65%) of mean daily rainfall up to 7.7 mm.
South-Western areas
Moderate chance (65%) of mean daily rainfall up to 7.3 mm.
Central, West-Central, and inland areas
Moderate chance (60%) of mean daily rainfall up to 6.0 mm.
Northern, North-Western areas
Moderate chance (65%) of mean daily rainfall up to 7.2 mm.
Tobago Rainfall Forecast for the 15-Day period of June (1st –15th) 2023.
Figure 2. Rainfall map of Tobago showing expected mean rainfall totals for districts across Tobago during the 15-day period (1st-15th) June 2023 and percentage probability of occurrence.
North-Eastern areas
Moderate chance (68%) of mean daily rainfall up to 10.0 mm.
South-Western areas
Moderate chance (68%) of mean daily rainfall up to 10.0 mm.
Sun and Moon Positions in the Sky June (1st –15th) 2023.
The sun is presently at 22.0 degrees North latitude and with this position, the day-length or number of sunlight hours in Trinidad and Tobago from June 1st will be 12 hours and 42 minutes, increasing slightly to 12 hours and 45 minutes by 15th June 2023. According to the moon’s phases, the 1st-2nd and 9th-10th of June are good days for planting aboveground crops, while 5th-6th, 9th-10th (Third Quarter Phase) and 13th-14th of June are good days for planting below ground crops. However, 3rd (Full Moon Phase) -4th, 7th-8th, 11th-12th and 15th of June are poor planting days. These days should be used for removing weeds, clearing land and ploughing fields.
Highlighted Possible Impacts on Agriculture:
During this first 15-day (1st-15th) forecast period of June 2023, expect increasing cloudy conditions to occur as compared to the last 15-day forecast period of May. Frequent showery episodes will produce wetter conditions during the forecast period. Therefore, a reduction in the frequency of irrigation on fields to maintain optimal soil moisture would be necessary. Trinidad and Tobago is in its heat, hurricane and wet seasons, warm periods are expected and there is a moderate probability (64%) chance of heat stress in young livestock, newly germinated and transplanted seedlings onto fields. There is a high (70%) probability for strong winds during heavy showers and flash flooding episodes. River levels will be moderate to high at times during the forecast period. There is also a moderate probability (68%) chance for fungi spread, insect pests and warm/moist weather diseases to develop in crop beds and possible flower/fruit rot in wet canopies.
Weather Assessment for the period April (1st-15th) 2023.
Moderate to high amounts of rainfall occurred during the 21st-23rd, 26th and 29th-30th May resulting in wide-spread wetting of soils and some flooding over Trinidad and Tobago. The rainfall totals maps for the period, 16th to 31st of May for Trinidad and Tobago are located below as figure 1 and figure 2.
Figure 1. Rainfall map of Trinidad showing measured rainfall totals for varying districts during period 16th to 31st of May 2023.
Figure 2. Rainfall map of Tobago showing measured rainfall totals for varying districts during period 16th to 31st of May 2023.
Temperatures:
Temperatures were cool to warm during the period 16th to 31st of May, with the minimum nighttime temperature falling to 24.2 ⁰C and the maximum daytime temperature rising to 33.3 ⁰C, in Trinidad.