Drought continues across portions of Micronesia.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS GUM wrote it up.
Drought continues across portions of Micronesia.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Guam wrote its last area forecast discussion before the first event at Mar 31, 8:11 AM UTC, 5 hours 49 minutes earlier.
Area Forecast Discussion National Weather Service Tiyan GU 611 PM ChST Wed Mar 31 2021 .Marianas Synopsis... Partly cloudy skies with isolated showers and gentle trade winds prevail across the Marianas this evening. Buoys show seas between 5 and 6 feet. && .Discussion... An overall dry pattern continues across the Marianas. Portions of the islands did receive a measurable rain today as light to gentle trade winds allowed island convection to form. For Rota, Tinian and Saipan, most of the rain fell over the center of the islands while western Guam saw the most rainfall. Winds are expected to be a bit stronger Thursday. This will likely limit island convection, with the showers that do develop pushing off the west coast of the islands. Therefore, drier conditions are expected over the next couple of days. Latest model guidance does show decreasing winds Sunday and Monday. If this pattern continues, the islands may see a repeat of island convection on those days. The main limiting factor could be moisture. For now, forecast soundings are showing PWAT values increasing to nearly 2 inches by Monday. If this occurs, rainfall could be greater than the islands saw today. Other than the island convection, gentle winds, spotty showers and partly cloudy skies are expected over the next week. && .Marine... Mainly gentle trade winds are expected through the beginning of next week, with light winds possible Sunday and Monday. Combined seas of 4 to 6 feet tonight will subside slightly to between 3 and 5 feet by Thursday, then remain at these levels through the weekend. && .Fire weather... A fairly dry pattern is expected to continue for the next several days. Island convection did bring some needed rain to parts of the island today, mainly western and southern Guam, with some locations receiving a wetting rain. This will do little to mitigate the fire danger over the next several days. The good news is that winds are expected to remain fairly low, less than 15 mph, through the beginning of next week. Therefore, no fire weather watches or red flag warnings are expected. Island convection could bring a wetting rain to portions of Guam again Sunday into Monday. The KBDI continues to rise in the high category and now stands at 691. && .Eastern Micronesia... Moderate trade winds are seen across the region. Convergent trade flow is linking up with upper-level divergent westerlies to maintain showery weather at Pohnpei and Kosrae this evening. A surface trough is seen well east of Majuro near the dateline. The slight surge in the trade winds that passed through the Marshalls yesterday pulsed through Kosrae today. This feature is expected to reach Pohnpei on Thursday but in a weaker state. Otherwise, bouts of showery weather are expected to continue for both Pohnpei and Kosrae as the convergent trade flow meanders its way westward between 4N and 8N. There is some support for a break on Thursday for Kosrae and Thursday night for Pohnpei, but confidence is not particularly high. The surface trough will increase clouds and showers for Majuro on Thursday. Saw enough support in the model guidance to mention the possibility of gusts to 30 kt near heavier convection. That said, the brunt of the showers look to hold off until the afternoon. Periods of showery weather may linger through the weekend as convergent trade lingers in the area. East to northeast trade swell and wind waves will continue to dominate for the foreseeable future. A longer period northeast swell will build Saturday into Sunday. Guidance suggests 4 to 5 feet at 12 to 13 seconds during the peak Sunday, before tapering off the first part of next week. && .Western Micronesia... Gentle to moderate trade winds are seen across the region with a fragmented near-equatorial trough south of the main islands. Fair weather remains in place for Palau and Yap this evening while pockets of convergent trade flow continue to generate patchy showers around Chuuk lagoon. Chuuk: Shower coverage is expected to remain isolated tonight and Thursday as convection clings to western Chuuk state and deeper convection around Pohnpei. Showery weather looks to return this weekend as the disturbances across eastern Micronesia trek westward and convergent trade flow consolidates near Weno. There is some support that showery weather may return by Friday but guidance between GFS and ECMWF differs. Longer period east-northeast trade swell will maintain seas of 5 feet. Palau and Yap: Fair weather is still expected the next few days as evidenced by the 00Z soundings, satellite and model guidance. Shallow island convection is likely around southern Babeldaob with the light winds and ample boundary layer moisture. A weak, elongated circulation is located across eastern Yap state near 4N142E. Convergent trade flow north of this feature will likely increase showers for Palau and Yap early next week. Seas fall about a foot later this week to around 3 feet. && .GUM WATCHES/WARNINGS/ADVISORIES... GU...None. Marianas Waters...None. && Marianas: Kleeschulte Micronesia: Bukunt
2 drought. Local standard time, as filed.
A very wet April brought much needed relief to Kapingamarangi. 3.53 inches of rainfell fell over Kapingamarangi which is 108 percent of average. This rainfall allowed this location to go from D2 to D1. Crops and vegetation continue to recover after nearly a year of |inadequate rainfall. Quality of well water is unknown.
February was a dry month for Kwajalein with rainfall only 60 percent of average. 6.21 inches fell both in March and again in April which is 174 and 107 percent of average respectively. Even though rainfall amounts have improved the earlier dry condition weigh on the area and Kwajalein went from D1 to D2
Water conservation measures are in place across the far northern Marshall Islands. The most impacted islands have strict drinking water conservation measures in place while reserving well water for other needs. Residents from the remote islets of Mejatto and Ebadon are collecting water from RO units on Kwajalein. Some crops are yellowing.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Guam in 2021Every state in 2021This day in weather historyWarnings in Guam, April 2021
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 949404, 949406.