Guam, 2022

Drought in Guam, January 1 to 31, 2022

January 1 to 31, 2022 · NWS GUM · 2 events in 2 counties and zones

A few areas received enough rain to decrease there drought severity, while a few had worsening drought conditions.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

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.

What happened

The episode as NWS GUM wrote it up.

A few areas received enough rain to decrease there drought severity, while a few had worsening drought conditions.

What forecasters said that day

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 Dec 31, 8:32 AM UTC, 5 hours 28 minutes earlier.

Area forecast discussion, Dec 31, 8:32 AM UTC, 5 hours 28 minutes before
Area Forecast Discussion
National Weather Service Tiyan GU
632 PM ChST Fri Dec 31 2021

.Marianas Synopsis...
Partly to mostly cloudy skies with spotty showers and moderate trade
winds prevail across the Marianas this evening. On satellite, a
decaying shear line is evident to the east with another shear line
over the northern CNMI. Ipan buoy shows seas near 5 feet while
altimetry between 6 and 7 feet across the waters.

&&

.Discussion...
A weak surface trough brought cloudiness and a few light showers to
the Marianas this evening. Cloudiness will decrease through the
evening, with partly cloudy skies returning to the area. Light
showers are then expected through New Years Day. By Saturday
evening, a shear line (currently over the northern CNMI) is expected
to push into the area. This feature will likely bring increasing
showers to Tinian and Saipan Saturday night, then pushing south into
Guam and Rota by Sunday morning. Rainfall, however, will be fairly
low. As the shear line approaches, moderate winds will also
increase, becoming fresh to occasionally strong by Sunday. Showers
will then decrease by Monday as a dry trade-wind pattern returns,
though fresh to occasionally strong winds are expected to continue
for the next few days.

&&

.Marine...
Strong north-northwest winds moving east of Japan are expected to
push an increasing north-northwest swell into the region later in
the weekend. At the same time, increasing northeast winds associated
with an advancing shear line will produce a modest northeasterly
swell. These 2 swell trains could produce combined seas in excess of
10 feet, especially over the northern waters. Combined seas along
with the strong winds from the shear line could require a Small
Craft Advisory Sunday or Sunday night. A High Surf Advisory is also
possible for north facing reefs along with a high risk of rip
currents along both north and east facing reefs.

&&

.Eastern Micronesia...
An overall dry pattern continues with moderate northeast trade
winds. Shower activity is largely confined to areas south of 4N.

A weak trade disturbance is seen on satellite north of Kwajalein.
This feature, or whatever is left of it, will drift over Pohnpei and
Kosrae Saturday night and early Sunday to produce an uptick in
showers. Another disturbance sweeps down from the mid-latitudes to
perhaps bump showers up again ~Tuesday for Pohnpei and Kosrae.
Majuro will continue to sit in a dry air mass characterized by low-
level divergence at times. This should keep Majuro dry through the
first half of next week with nothing more than a few sprinkles at
times. Drought will continue to be a concern for the northern islands
of the Marshalls near and north of 9N where meager rain has fallen
the past few weeks. The anomalous area of low pressure east of the
dateline that has eastern Micronesia locked in this steady, dry,
moderate trade-wind pattern will erode early next week. This should
allow moisture and convergent trade flow to push back in from the
east. Much of the activity is likely to settle in south of Majuro,
but expect the northern extent to brush Majuro with showers late
week.

King Tides return Jan 2 thru Jan 5. Nuisance flooding is still
possible for the most vulnerable coastal areas across the region as
background northerly swell couples with the higher than normal tides
and elevated sea levels associated with La Nina. A big impact event
like early December is not likely as northerly swell is anticipated
to be roughly 3x lower and shorter period.

&&

.Western Micronesia...
A near-equatorial trough hugs the equator with showers and
thunderstorms seen along and north of it, including the main islands
of Palau. Fair weather trades cover the rest of the region.

Chuuk looks anchored in a dry pattern similar to eastern Micronesia
with little shower activity expected the next several days. Some ill-
defined trade disturbances look to boost light showers a bit the
first half of next week but overall accumulations and coverage look
minimal. Dry air lurks just northeast of Palau based on satellite-
derived precipitable water imagery. This should nose into Palau
overnight. A shear line, currently sitting along 15N, will drift
down the next few days. This feature will bring low-topped trade
showers back to Palau and Yap for early next week.

Altimetry data shows seas still at 8 feet around Palau and Yap with
surf obs from Yap still indicating hazardous surf of 9 feet along
reefs exposed to N/NE swell. Decided to extend the advisory through
the weekend as another push of NE swell arrives with the shear line.
Seas and winds may be borderline hazardous for small craft for Palau
and Yap by early next week as well. Seas and winds will be mellower
across Chuuk but expect moderate northwest swell and trade winds to
build by Tuesday. As in eastern Micronesia, somewhat elevated seas
and the next King Tide cycle may bring about some nuisance coastal
flooding around high tide Sunday through Wednesday, but nothing of
the magnitude of the event in early December.

&&

.GUM WATCHES/WARNINGS/ADVISORIES...
GU...None.
MP...None.
Marianas Waters...None.
&&

Marianas: Kleeschulte
Micronesia: Bukunt

Event by event

2 drought. Local standard time, as filed.

Drought, Micronesia

When
January 1, 12:00 AM GST to January 31, 11:59 PM GST
Where
Micronesia forecast zone
Reported by
Official NWS Observations

An increase in rainfall over Kapingamarangi allowed it to transition from Severe |Drought (D2) in December to Moderate Drought (D1) at the beginning of January.

Drought, Marshall Islands

When
January 1, 12:00 AM GST to January 31, 11:59 PM GST
Where
Marshall Islands forecast zone
Reported by
Drought Monitor

Kwajalein saw only 1.25 inches of rain in January, which is 28 percent of average. |This resulted in the atoll to go from Moderate Drought category (D1) to Severe Drought (D2). Water resources are stressed on parts of Kwajalein atoll. This includes, but is not |limited to, Mejatto and Ebadon.

Wotje entered Severe Drought (D2) at the beginning of the month. This worsened to Extreme Drought (D3) by months end. Wotje saw no rain from January 1st to the 26th. In Wotje private water catchments are very low or dry. Residents are using the community catchment tanks at the local church and school for drinking water. Vegetation and crops are browning and some are drying up.

What these are

Drought
A drought reaching severe (D2) or worse on the US Drought Monitor, or with notable impacts.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Guam in 2022Every state in 2022This day in weather historyWarnings in Guam, January 2022

Sources

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: 1003058, 1003059.