SHORT RANGE SYNOPSIS VALID 06/23/1200 UTC to 06/25/1200 UTC

High (1028mb) centered over the Azores. Second high (1024mb) dominates much of the RR forecast zone near 49N/07W. This high pressure is weakening very slowly but nearly stationary. Low pressure (1002mb) near 52N/38W is deepening with a cold front extending from the low to the southwest. The cold front is moving east at 25 knots.

By 24/1200 UTC High (1022mb) near 49N/8W. Still moving very slowly and gradually weakening. Low (991mb) near 54N/32W with cold front extending from the low to 52N/19W then 45N/22W then on to the SW.

SHORT RANGE SYNOPSIS VALID 06/22/1200 UTC to 06/24/1200 UTC

Low pressure (1000mb) near 59N/26W is filling and moving ENE at 10 knots. A dissipating cold front extends from the low to near Galway then southwest to 50N/15W. A new cold front is moving into the area from the west at 50N/21W and will be near 50N15W by 23/1200UTC where it will dissipate by 24/0000 UTC.

SHORT RANGE SYNOPSIS VALID 06/21/1200 UTC to 06/23/1200 UTC

At 21/1200 UTC, high (1026mb) at 46N/05W nearly stationary. Low (998mb) at 57N/33W moving ENE at 15-20 knots and weakening very slowly. Associated cold front from low center to 54N/20W to 45N/21W to vicinity of Azores moving east at 20 knots. Front lies NE to SW centered on 50N/15W by 22/1200 UTC as it gradually slows and becomes nearly stationary along a line from Galway to 13W/50N to 19W/45N by 23/1200 UTC. At the same time, high pressure (1020mb) will be weakening but slow moving, centered just north of Brest off the NE French coast.

SHORT RANGE SYNOPSIS VALID 06/20/1200 UTC to 06/22/1200 UTC

At 20/1200 UTC, high pressure (1026mb) at 54N/13W is moving SE at 20 knots. Azores high (1028mb) at 36N/27W is moving SW at 10 knots. A strong north Atlantic low pressure (999mb) located near 55N/40W is mocing ENE at 10 knots. An associated cold front extends from the low to 50N/32W and on to 40N/32W and is moving E at 20-25 knots. The cold front is expected to arrive near 20W along 50N by 21/1200 UTC.

SHORT RANGE SYNOPSIS VALID 06/19/1200 UTC to 06/21/1200 UTC

WX Pattern is expected to start changing later in the period. Initially, Azores high (1030mb) centered in 44N/27W w/ ridge extending to second high (1028mb) near 57N/16W at 19/12 UTC. By 21/12 UTC, Azores high moves southwest and weakens (1028mb) near 32N/33W while secondary high (1025mb) moves southeast to 49N/07W.

A large, strong low (996mb) moves out of the central Atlantic to 53N/40W by 20/12 UTC. An associated cold front will lie from the low to 50N/30W to 40N/34W and moving W. This low will move slowly weaken (1002mb) and move to 53N/30W by 21/12 UTC and an associated cold front along 20W to 40N then SW to the Azores.

SYNOPSIS VALID 06/18/1200 UTC to 06/20/1200 UTC

Current WX pattern continues w/ only slight changes the next 2 days. Azores high (1028mb) centered near 40N/30W & extending NNE to second high centered near 60N/13W at 18/12 UTC. High pressure of similar strength remains from Azores to W of Ireland through 20th. Counterpart to high is low pressure (1014mb) over Iberian Peninsula w/ associated upper level trough at 18/12 UTC. Low pressure generally remains over W Europe though the 20th.

SHORT RANGE SYNOPSIS VALID 06/17/1200 UTC to 06/19/1200 UTC

Slightly different conditions as WX pattern changes a little in the short term. E Atlantic high (1028mb) near 45N/20W & elongated N-S from 30N/30W to 60N/15W at 17/12 UTC. High stationary & FINALLY weakening then dissipating on 18th. Weak cold front along 30W between 40N-50N at 17/12 UTC moving E to near 25W & dissipating on 18th. New central Atlantic high near 35N/50W at 17/12 UTC moving rapidly NE to near 41N/34W by 18/12 UTC then becoming stationary over Azores on 19th. Low pressure and upper level trough over Spain on 17th persisting though 19th.

SHORT RANGE SYNOPSIS VALID 06/16/1200 UTC to 06/18/1200 UTC

Stagnant WX pattern so no large changes from current conditions the next 2 days. Large E Atlantic high (1032mb) near 45N/20W by elongated NE-SW from 55N/05W to 30N/35W at 16/12 UTC. High stationary until 17th then weakening & moving SW to near Azores by 18th. Broad area of low pressure from France to Algeria w/ upper level trough over Iberian Peninsula at 16/12 UTC. Low pressure remains over W Europe/Mediterranean through 18th. Cold front moving E to near 25W between 40N-50N on 17th then dissipating on 18th.

SHORT RANGE SYNOPSIS VALID 06/15/1200 UTC to 06/17/1200 UTC

Familiar WX pattern & current conditions persist through the short term. Large Atlantic high (1033mb) near 46N/20W w/ axis from 30N/35W to 55N/05W at 15/12 UTC. High nearly stationary next 2 days but weakening on 17th. Several centers of low pressure over W Mediterranean & Algeria w/ upper trough over Iberian Peninsula at 15/12 UTC. Low pressure generally remains over W Europe/Mediterranean through 17th.

SHORT RANGE SYNOPSIS VALID 06/14/1200 UTC to 06/16/1200 UTC

Little change in the WX pattern the next few days so expect current conditions to continue. Atlantic high (1031mb) centered near 44N/21W w/ axis from 30N/35W to 55N-15W at 14/12 UTC. High remaining stationary with similar orientation through the 16th. Counterpart to high are several centers of low pressure over France, Spain, & Algeria w/ supporting upper level trough over W Europe on 14th. Similar pattern persists through the 16th.

SHORT RANGE SYNOPSIS VALID 06/13/1200 UTC to 06/15/1200 UTC

Stagnant WX pattern means similar conditions the next several days. Large Atlantic high (1032mb) remains N of Azores near 43N/24W & extending from 13W-35W between 25N-55N at 13/12 UTC. High becoming more NNE-SSW elongated but maintaining strength & center nearly stationary through at least 15th. Low pressure (1001mb) over southern Morocco w/ a trough extending N over Spain at 13/12 UTC. Low generally remaining near far W Mediterranean w/ trough over Iberian Peninsula through 15th.

SHORT RANGE SYNOPSIS VALID 06/12/1200 UTC to 06/14/1200 UTC

Stable WX pattern provides good conditions for the first days of ARCE leg 3. Large Atlantic high (1032mb) NW of Azores near 41N/29W & extending from 10W-40W between 25N-50N at 12/12 UTC. High maintaining strength & moving slightly NE to near 44N/25W by 13/12 UTC then nearly stationary through 14th. Low pressure (1011mb) over southern Spain at 12/12 UTC. Low remaining over Spain through 14th but moving slightly W to near Gibraltar.

SHORT RANGE SYNOPSIS VALID 06/12/1200 UTC to 06/14/1200 UTC

The final leg of the 2010 ARCE gets off to a pleasant start w/light-moderate winds and fine WX courtesy of high pressure. Large Atlantic high (1031mb) NW of Azores near 42N/31W & extending from 10W-40W between 30N-50N at 12/12 UTC. High maintaining strength & only moving slightly NE on 13th then moving more rapidly NNE to W of Ireland by 14th. Weak cold front W/NW of high on 12th nearly stationary through 13th then dissipating by 14th. Low pressure (1012mb) near Gibraltar on 12th moving slightly E to W Mediterranean by 14th.

SHORT RANGE SYNOPSIS VALID 06/08/1200 UTC to 06/10/1200 UTC

Large central Atlantic high still in control of WX in ARCE FX zones. High (1032mb) centered near 37N/40W & extending from 20N-45N between 20W-45W at 08/12 UTC. High nearly stationary through 09/12 UTC then weakening slightly & moving NE to near 43N/30W by 10/12 UTC. Low pressure (998mb) well NE of high near UK at 08/12 UTC moving S to Iberian Peninsula by 10th. W Atlantic cold frnt moving E to western MM by late on 09th.

SHORT RANGE SYNOPSIS VALID 06/07/1200 UTC to 06/09/1200 UTC

Large central Atlantic high positioned over ARCE FX zones causes light winds & mostly fine WX through at least midweek. High (1032mb) centered near 36N/40W but still extending between 20N-43N from 10W-60W at 07/12 UTC. High stationary w/ similar strength through 08th then beginning to move slightly NNE on 09th. Atlantic storm track remains far to the N w/ lows moving from the NE US to 50-55N then E to near the UK.

SHORT RANGE SYNOPSIS VALID 06/06/1200 UTC to 06/08/1200 UTC

Persistent light winds & very fine WX as large central Atlantic high continues to dominate ARCE FX zones. High (1030mb) centered near 35N/37W but extending between 20N-43N & 15W-60W at 06/12 UTC. High maintaining strength & stationary until at least the 9th. Atlantic storm track suppressed far to the N near 50-55N while high remains stationary.

SHORT RANGE SYNOPSIS VALID 06/05/1200 UTC to 06/07/1200 UTC

Light winds & fine WX persists for several days. Large central Atlantic high (1028mb) centered near 33N/44W but extending ENE to S of Azores at 05/12 UTC. High maintaining strength & building more firmly over Azores while only moving slightly NE to 35N/39W by 7th. Only additional feature near ARCE FX zones is cold frnt approaching 40N between 30W-40W on 6th then moving NE by 7th.

SHORT RANGE SYNOPSIS VALID 06/04/1200 UTC to 06/06/1200 UTC

Mostly light winds & fine WX next several days. Central Atlantic low (1012mb) near 44N/30W w/ associated cold frnt extending S to 37N/30W at 04/12 UTC. Low & frnt moving E/NE & dissipating on 5th. Large central Atlantic high(1027mb) near 33N/47W extending ENE to S of Azores at 04/12 UTC. High becoming stronger & only moving slightly NE to near 35N/39W by 06/12 UTC.

SHORT RANGE SYNOPSIS VALID 06/03/1200 UTC to 06/05/1200 UTC

One additional low pressure in the near-term before several days dominated by high pressure. Atlantic high (1024mb) near 33N/45W extending ENE to S of Azores at 03/12 UTC. High nearly stationary w/ similar strength through 5th. Central Atlantic Low (1004mb) near 43N/44W w/ cold front extending SW to 47N/50W at 03/12 UTC. Low weakening & moving E to 43N/32W w/ cold frnt extending SW to 35N/40W at 04/12 UTC then dissipating on 5th.

SHORT RANGE SYNOPSIS VALID 06/02/1200 UTC to 06/04/1200 UTC

Atlantic storm track moving further N as high pressure builds across ARCE FX zones. Central Atlantic Low (990mb) near 48N/35W w/ cold frnt extending across NN & JJ (approx 40N/25W to 33N/30W) at 02/12 UTC. Low moving rapidly NNE & frnt E. W Atlantic high (1022mb) near 33N/57W at 02/12 UTC moving quickly E to 32N/48W by 03/12 UTC then stationary through 4th. W Atlantic low (1000mb) near 44N/60W at 02/12 UTC moving E to 42N/46W by 03/12 UTC then
43N/35W by 04/12 UTC.

SHORT RANGE SYNOPSIS VALID 06/01/1200 UTC to 06/03/1200 UTC

Period of unsettled WX & increased winds w/ frontal passage next 2 days. E Atlantic high (1022mb) near 41N/16W at 12/01 UTC moving NE to English Channel by 2nd. Strong central Atlantic low (994mb) near 45N/42W w/ associated cold frnt extending across FX zones MM & II (approx 40N/39W to 33N/45W) at 12/01 UTC. Frnt moving rapidly E to FX zones NN & JJ (approx 40N/26W to 30N/33W) by 02/12 UTC then well E by 3rd. Strong E Atlantic high moving E behind frnt to near 32N/45W by 03/12 UTC. Moderate low N of high near 42N/45W by 03/12 UTC.

SHORT RANGE SYNOPSIS VALID 05/31/1200 UTC to 06/02/1200 UTC

E Atlantic high (1026mb) near 40N/15 W extending NE to English Channel & SW to 20N/40W at 31/12 UTC. High nearly stationary & weakening slightly through 2nd. Cold frnt extending across NN & II (approx 40N/29W to 30N/44W) at 31/12 UTC. Frnt nearly stationary through early on 1st then dissipating. Weak ridge of high pressure extending across MM and NW II to W of frnt. N Atlantic low (989mb)near 46N/54W w/ cold frnt extending S across W LL at 31/12 UTC. Low moving to 45N/42W & cold frnt moving E/SE to far NW MM by 01/12 UTC. Cold frnt moves rapidly E/SE across FX zones, extending from 40N/27W to 30N/30W at 02/12 UTC.

SHORT RANGE SYNOPSIS VALID 05/30/1200 UTC to 06/01/1200 UTC

Changeable wind & WX conditions the next several days. W Atlantic high (1028mb) near 31N/18W extending NE to Portugal & SW to 20N/45W at 30/12 UTC. High nearly stationary & weakening next 2 days. Cold frnt extending across
NN & II (approx 40N/30W to 30N/42W) at 30/12 UTC. Frnt only moving slightly E by 31/12 UTC then dissipating by 1st. Weak W Atlantic high extending E behind cold frnt. New Atlantic low near 40N/50W w/ associated cold frnt extending S from 40N/38W to 30N/50W by 01/12 UTC.

SHORT RANGE SYNOPSIS VALID 05/29/1200 UTC to 05/31/1200 UTC

Unsettled weather gradually improving from W to E over next 2 days. E Atlantic high pressure (1028mb) near 35N/18 W at 29/12 UTC moving slightly NE to 41N/15W by 31/12 UTC. Strong central Atlantic low (989mb) near 47N/45W w/ associate cold frnt extending S across FX zones MM, II, and SE HH (approx 40N/37W to 35N/40W to 30N/47W) at 29/12 UTC. Low moving NE to 50N/40W w/cold frnt moving slowly E to far E MM & central II (approx 40N/35W to 30N/44W) by 30/12 UTC. Frnt moving across MM and JJ on 31st. E Atlantic high moving E/SE behind frnt to near 33N/47W by 31st.

SHORT RANGE SYNOPSIS VALID 05/28/1200 UTC to 05/30/1200 UTC

Large-scale weather pattern continues causing unsettled weather next 2 days. Atlantic high (1024mb) suppressed far to the E near 33N/22W at 28/12 UTC only moves slightly NE through 30/12 UTC. Strong central Atlantic low (998mb) near 43N/46W w/ associated cold frnt extending S/SW across MM, LL & HH (approx 40N/43W to 35N/50W to 32N/60W) at 28/12 UTC. Low strengthening to 990mb near 47N/45W by 29/12 UTC then moving NE into N Atlantic on 30th. Cold frnt only moving slightly E/SE from current position on 29th then further E to NN & II on 30th.

SHORT RANGE SYNOPSIS VALID 05/27/1200 UTC to 05/29/1200 UTC

Atlantic storm track near or just N of ARCE FX zones next few days. Atlantic high (1024mb) near 32N/25W at 27/12 UTC remains nearly stationary w/ similar strength through 29/12 UTC. Strong central Atlantic low (992mb) near 44N/37W w/ cold front extending S/SW across northern MM, LL & KK (approx 40N/40W to 36N/60W) at 27/12 UTC. New low developing on front & near 42N/39N w/ cold front extending across MM, LL & HH by 28/12 UTC. Low strengthening and moving to 45N/47W by 29/12 UTC.

SHORT RANGE SYNOPSIS VALID 05/26/1200 UTC to 05/28/1200 UTC
 
Atlantic storm track moving S over ARCE FX zones next several days. Atlantic high pressure (1022mb) now positioned far to the E near 30N/30W at 26/12 UTC. High maintaining strength & nearly stationary through 28/12 UTC. Cold frnt extending from 40N/30W to 35N/40W to low pressure (998mb) near 43N/55W at 26/12 UTC. Low strengthening to 985mb & moving to near 43N/40W while forcing new cold frnt S/SE across N KK, LL, & MM by 27/12 UTC. New low developing on cold frnt near 38N/45W by 28/12 UTC. Subtropical low nearly stationary W of Bermuda next 2 days.

SHORT RANGE SYNOPSIS VALID 05/25/1200 UTC to 05/27/1200 UTC

Atlantic high pressure (1023mb) centered near 33N/30W but extending weekly W/NW across FX zones II, HH, & KK at 25/12 UTC. High nearly stationary through 27/12 UTC but weakening significantly on western flank. Subtropical low (1004mb) near 30N/73W w/ trough extending E towards Bermuda at 25/12 UTC. Low stationary next 2 days but moving troughs through GG. Cold frnt near 40N between 45W-60W at 25/12 UTC moving SE across LL & MM by 26th. Atlantic low strengthening near 43N/55W on 26th moving NE on 27th but forcing new cold frnt across MM, LL & KK.

SHORT RANGE SYNOPSIS VALID 05/24/1200 UTC to 05/26/1200 UTC

Atlantic high pressure centered near 40N/44W (1030mb) & 23N/35W (1026mb) at 24/12 UTC. Highs weakening while moving SE & merging near 30N/30W by 26/12 UTC but still extending across FX zones E of 50W. Subtropical low (1002mb) near 27N/70W at 24/12 UTC moving N to W of Bermuda by 25th then nearly stationary through 26th. Central Atlantic low near 50N/45W w/ cold frnt extending S/SW along 40N between 40W-60W at 25/12 UTC. Frnt moving S/SE
across N KK, LL, & MM on 26th.

SHORT RANGE SYNOPSIS VALID 05/23/1200 UTC to 05/25/1200 UTC

Two strong centers of high pressure primarily over ARCE FX zones. Central Atlantic high (1026mb) near 35N/35W & W Atlantic high (1034mb) near 42N/52W at 23/12 UTC. Highs maintaining strength & merging near 34N/44W by 25/12 UTC. Subtropical low (1008mb) near 27N/68W at 23/12 UTC moving N to near Bermuda & strengthening by 24-25th. N Atlantic low strengthening near 50N/40W on 24-25th sending cold frnt S to near 40N between 40-50W.

SHORT RANGE SYNOPSIS VALID 05/22/1200 UTC to 05/24/1200 UTC

A cold frnt separates two strong centers of Atlantic high pressure at 22/12 UTC. Central Atlantic high (1029mb) centered near 38N/35W extending SW across FX zones S of 35N. Cold frnt across LL & E GG (approx 42N/45W to 34N/60W). W Atlantic high (1030mb) near 43N/60W across FX zones mainly N of 35N. High's consolidating near 38N/50W at similar strength as cold frnt moves E to MM by 24/12 UTC. Subtropical low developing near Bahamas on 22nd-23rd moving NE to near Bermuda & strengthening by 24-25th.

SHORT RANGE SYNOPSIS VALID 05/21/1200 UTC to 05/23/1200 UTC
 
Atlantic high pressure (1032mb) near 38N/40W extends S/SW across FX zones to near Bermuda at 21/12 UTC. High slowly weakening & moving SE to near 32N/35W by 23/12 UTC. Low pressure over Newfoundland w/ cold front extending S/SW across E KK & W GG (approx 40N/55W to 33N/65W) at 21/12 UTC. Frnt moving E to E LL & E GG (approx 40N/45W 32N/60W) by 22/12 UTC then dissipating on 23rd. Strong NE U.S. high building E behind front to near 42N/60W at 22/12 UTC & 40N/52W at 23/12 UTC. Subtropical low developing near Bahamas on 22nd moving NE to near Bermuda by 23rd.

SHORT RANGE SYNOPSIS VALID 05/20/1200 UTC to 05/22/1200 UTC

ARCE FX zones positioned between two large-scale weather features. Strong Atlantic high pressure (1031mb) near 40N/46W extending S/SW across most FX zones at 20/12 UTC. High maintaining strength & moving SE to 37N/32W by 22/12 UTC. Low pressure (1004mb) over Nova Scotia (45N/64W) w/ cold frnt extending S/SW across W KK (approx 41N/60W to 36N/70W) at 20/12 UTC. Frnt moving E/SE across E KK & W GG on 21st then W LL & E GG on 22nd. NE U.S. high building E behind frnt on 22nd. Also, subtropical low developing near Bahamas on 22nd moving NE to near Bermuda by 23rd.

SHORT RANGE SYNOPSIS VALID 05/19/1200 UTC to 05/21/1200 UTC

The WX still appears active for the start of ARCE leg 2. Atlantic high pressure (1027mb) centered near 39N/55W extends N-S along 55W between 25N-50N at 19/12 UTC. High remains oriented N-S while moving E to 37N/39W & gaining strength by 21st. NE U.S. low pressure (1005mb) near 40N/70W at 19/12 UTC. Low's associated warm frnt extending SE across KK & N GG w/ cold frnt extending SW/S to the W of KK & GG. Low moving NE to Canadian Maritimes by 21st. Cold frnt moving E across W KK on 20th then E KK & W GG on 21st.

SHORT RANGE SYNOPSIS VALID 05/19/1200 UTC to 05/21/1200 UTC

An active period of weather to begin leg 2 of the ARCE. Atlantic high pressure (1027mb) centered near 37N/53W on 19/12 UTC. High moving E to 37N/40W & gaining strength by 21st. NE U.S. low pressure (1005mb) near 40N/70W on 19/12 UTC with associated warm frnt extending SE across KK & GG & cold frnt extending SW/S to the W of KK & GG. Low moving NE to Canadian Maritimes by 21st. Cold frnt moving E across W KK on 20th then E KK & W GG on 21st.

SHORT RANGE SYNOPSIS VALID 05/16/1200 UTC to 05/18/1200 UTC

Elongated region of Atlantic high pressure (1023mb) centered near 27N/64W but extending along 27N between 45W-75W at 16/12 UTC. High nearly stationary w/ similar strength until 17/12 UTC then moving rapidly ENE to near 30N/55W by 18/12 UTC. Stationary front just N of Bermuda (along 33N) through 17/12 UTC then dissipating. Low pressure tracking NE from Cape Hatters, NC early on 18th.

SHORT RANGE SYNOPSIS VALID 05/15/1200 UTC to 05/17/1200 UTC

Atlantic high pressure (1024mb) centered near 31N/62W but elongated along 32N between 50W-75W at 15/12 UTC. High weakening & moving S slightly to 30N/60W but still elongated between 50W-75W by 16/12 UTC then stationary
through 17/12 UTC. Low (1007mb) S of Canadian Maritimes w/ cold frnt extending SW to near Cape Hatteras, NC at 15/12 UTC. Low moving NE & cold frnt tracking E/SE to near Bermuda by 16/12 UTC. Frnt becoming stationary
then dissipating near Bermuda on 17th.

SHORT RANGE SYNOPSIS VALID 05/14/1200 UTC to 05/16/1200 UTC

Strong area of Atlantic high pressure (1027mb) w/ centers near 31N/72W & 34N/66W at 14/12 UTC. High consolidates to the SE/E near 31N/60W by 15/12 UTC then weakens & elongates along 27N between 45W-75W. Stationary frnt across southern CC on 14th dissipates by 15th. Low pressure over NE U.S. early on 15th moves N of Bermuda along 40N by late 15th then rapidly NE. Low's associated cold frnt moves SE & crosses Bermuda early on 16th.

Atlantic high pressure continues causing slack pressure gradient & very light winds S of Bermuda. Winds remain under 10 kts W/ variable direction in N CC & S DD through 16/00 UTC then filling slightly from NW/W. Light ENE/E trade winds S of high in S CC. Moderate winds becoming fresh-strong w/ near gale force gusts in N DD from low moving N of Bermuda late on 15th.

SHORT RANGE SYNOPSIS VALID 05/13/1200 UTC to 05/15/1200 UTC

Atlantic high pressure (1026mb) centered WSW of Bermuda (32N/72W) at 13/12 UTC. High elongated E-W along 32N from the central Atlantic to SE U.S. High nearly stationary w/ similar strength through 14/12 UTC then moving slightly SE to about 28N/65W by 15/12 UTC. Low pressure (1009mb) NNW of Bermuda (38N/62W) at 13/12 UTC w/ associated cold frnt extending to the SW/W near N DD (approx 37N/63W to 36N/65W to 35N/70W). Low moving rapidly NE as frnt tracks SE, crossing Bermuda near 14/12 UTC. New low from NE US moving N of Bermuda by 15/18 UTC.

SHORT RANGE SYNOPSIS VALID 05/12/1200 UTC to 05/14/1200 UTC

ARCE FX zones dominated by large center of Atlantic high pressure (1027mb) centered W of Bermuda (33N/63W) at 12/12 UTC. High maintaining strength & only moving slightly S to near 30N/65W while elongating along 30N between 50W-80W by 14/12 UTC. Stationary frnt across S CC dissipating by 13/12 UTC. Low pressure (1013mb) over NE U.S. at 12/12 UTC moving SE to near 38N/62W by 13/12 UTC then moving rapidly NE. Cold frnt associated w/ low moving S/SE, crossing Bermuda early on 14th.

SHORT RANGE SYNOPSIS VALID 05/11/1200 UTC to 05/13/1200 UTC

Low pressure (1016mb) near 41N/55W w/ associated cold frnt extending SSW/SW across FX zone CC at 11/12 UTC (approx 27N/60W to 25N/70W). Frnt moving E/SE across N BB next 24 hrs then E of FX zones by 12/12 UTC. Strong high pressure (1032mb) centered near New York City (40N/75E) at 11/12 UTC. High moving SE behind front to W of Bermuda (33N/67W) by 12/12 UTC. High weakening & moving slightly SW of Bermuda by 13/12 UTC. Low near NE U.S. on 12th moving along 40N to N of Bermuda by 13th.

SHORT RANGE SYNOPSIS VALID 05/10/1200 UTC to 05/12/1200 UTC

Atlantic high pressure (1023mb) dissipated near 32N/50W by 11/00 UTC. Trough from 25N/63W to 21N/70W moving slightly W & dissipating 11/12 UTC. Low pressure (995mb) over Newfoundland Canada w/ associated cold frnt extending S/SW across FX zones CC, DD, & FF at 10/12 UTC (approx 35N/60W to 31N/65W, to 27N/70W to 26N/75W). Frnt moving E/SE to N BB by 11/12 UTC then E of FX zones by 12/12 UTC. Strong high pressure over E U.S. on 11th moving SE to near Bermuda by 12th.

SHORT RANGE SYNOPSIS VALID 05/09/1200 UTC to 05/11/1200 UTC

Atlantic high pressure (1022mb) stationary near 30N/48W through 9th then dissipating on 10th. Trough along 18N/69W - 22N/65W moving W of BB on 10th. Low pressure (985mb) over Canadian Maritimes w/ associated cold frnt extending S/SW across FX zones DD, EE, FF at 12 UTC on 9th (approx 35N/67W to 30N/75W to 26N/80W). Frnt moving E/SE across CC late on 10th & E of FX zones by 11th. High pressure over E U.S. on 10th moving E towards Bermuda by 11th.

SHORT RANGE SYNOPSIS VALID 05/08/1200 UTC to 05/10/1200 UTC

Atlantic high pressure (1022 mb) mainly stationary near 29N/50W until 12 UTC on 9th. High moving quickly NE & dissipating by 10th. Slack pressure gradient from high maintains light-moderate ENE/ESE trade winds in FX zones AA, BB, & most of CC next 2 days.

Changeable winds & weather in EE, FF, & far NW CC next 2 days. Cold frnt currently moving through SE U.S. from low tracking to NE U.S. Cold front enters NW EE & FF early on 9th & moves SE by 10th. Front moving into NW CC & W DD on 10th. Ahead of frnt winds become fresh/strong w/ near gale force gusts from SW. Winds shift to NW then veer to N/NE post front w/ gradual easing to moderate/fresh speeds. Sqly shwrs/tsms accompany frntl passage. High building into W Atlantic from E U.S. behind frnt.

SHORT RANGE SYNOPSIS VALID 05/07/1200 UTC to 05/09/1200 UTC

Atlantic high pressure (1021mb) centered near 31N/52W at 12 UTC continues controlling the weather along the ARCE route. The high is anchored by an upper level ridge along 55W & only moves slightly E next 24 hrs. S of 23N in FX zones AA & BB light E'ly trade winds from gradient between the Atlantic high & low pressure over Columbia. N of 23N in BB-DD a slack gradient from the high causes very light winds that veer from the ESE to SW the further N you sail. The high & slack gradient extend W to Florida causing light S'lys that strengthen & veer in 20-24 hrs as a cold frnt approaches from NW.

SHORT RANGE SYNOPSIS VALID 05/06/1200 UTC to 05/08/1200 UTC

Atlantic high pressure (1019mb) currently near 28N/65W moving E to 28N/60W at similar strength by morning of 6th. High causing light-moderate ENE/E trade winds at the BVI start for FX zone AA. For the St. Augustine start, wkng low pressure near 32N/75W w/ cold frnt across N Florida. Frnt causes wind shift from SSW/SW to W/WSW w/ light but gusty winds near time of start N of Gulf Stream, strengthening & backed winds offshore in FX zone EE.