Marine Weather and Tide Forecast for Gulfport, MS
June 17, 2024 5:26 AM CDT (10:26 UTC) Change Location
 | Sunrise 5:52 AM Sunset 8:01 PM Moonrise 4:06 PM Moonset 2:31 AM |
GMZ532 Mississippi Sound- 412 Am Cdt Mon Jun 17 2024
.small craft exercise caution in effect through Tuesday morning - .
.small craft advisory in effect from Tuesday morning through Thursday morning - .
Today - Southeast winds 15 to 20 knots with gusts up to 25 knots. Waves 3 to 4 feet. A chance of Thunderstorms this morning. Showers. Thunderstorms likely this afternoon.
Tonight - Southeast winds 15 to 20 knots with gusts up to 30 knots. Waves 3 to 4 feet. A chance of showers. Thunderstorms likely, mainly in the evening.
Tuesday - East winds 20 to 25 knots with gusts up to 35 knots. Waves 4 to 5 feet. A chance of Thunderstorms. Showers likely.
Tuesday night - East winds 20 to 25 knots with gusts up to 40 knots. Waves 4 to 5 feet. A slight chance of Thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight.
Wednesday - East winds 25 to 30 knots, diminishing to 20 to 25 knots in the afternoon. Waves 4 to 5 feet. Showers likely with a chance of Thunderstorms.
Wednesday night - East winds 20 to 25 knots, diminishing to 15 to 20 knots after midnight. Gusts up to 35 knots. Waves 3 to 4 feet. A slight chance of showers and Thunderstorms in the evening, then a chance of showers and Thunderstorms after midnight.
Thursday - East winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Waves 3 to 4 feet. A chance of showers and Thunderstorms.
Thursday night - East winds 10 to 15 knots. Waves 2 to 3 feet. A chance of showers and Thunderstorms.
Friday - East winds 10 to 15 knots. Waves 2 to 3 feet. A chance of showers and Thunderstorms.
Friday night - Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Waves 2 to 3 feet. A chance of showers and Thunderstorms, mainly in the evening.
winds and waves higher in and near Thunderstorms.
winds and waves higher in and near Thunderstorms.
GMZ500 412 Am Cdt Mon Jun 17 2024
Synopsis for pascagoula to atchafalaya river out 60 nm -
winds will strengthen to small craft advisory levels today over much of the waters in response to a broad area of low pressure developing in the bay of campeche. These stronger winds of 20 to 30 knots will then persist through the middle of the week. Frequent gusts to near gale-force will be possible, primarily west of the mouth of the mississippi river. Seas will also build in response to the strengthening winds with seas of up to 12 feet expected in the offshore waters by Tuesday and Wednesday. A gradual decrease in wind speeds and seas is expected on Thursday and Friday as the low in the bay of campeche moves into mexico and weakens.
winds will strengthen to small craft advisory levels today over much of the waters in response to a broad area of low pressure developing in the bay of campeche. These stronger winds of 20 to 30 knots will then persist through the middle of the week. Frequent gusts to near gale-force will be possible, primarily west of the mouth of the mississippi river. Seas will also build in response to the strengthening winds with seas of up to 12 feet expected in the offshore waters by Tuesday and Wednesday. A gradual decrease in wind speeds and seas is expected on Thursday and Friday as the low in the bay of campeche moves into mexico and weakens.
Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 170849 AFDLIX
Area Forecast Discussion National Weather Service New Orleans LA 349 AM CDT Mon Jun 17 2024
New UPDATE
UPDATE
Issued at 348 AM CDT Mon Jun 17 2024
A final look at marine observations required an adjustment to the Small Craft Advisory over western waters to initiate the advisory immediately. No other changes made.
SHORT TERM
(Today through Tuesday)
Issued at 338 AM CDT Mon Jun 17 2024
Upper ridging centered over the Carolinas this morning, with a second ridge over Baja California. A weakness between the two is combining with the Central American Gyre to pump deep moisture northward across the local area. An area of low pressure is expected to develop over the Bay of Campeche over the next couple of days associated with the Gyre. The impulse that produced showers and storms across the area on Sunday has moved north of the area, but the next impulse is already noted on water vapor imagery over the central Gulf of Mexico moving northward. The 00z LIX sounding last evening already showed precipitable water values in excess of 2 inches, which is above the 90th percentile climatologically.
Already seeing radar returns on LCH radar over their coastal waters, and expect to start seeing them on the HDC radar over the next hour or so. Deep moisture is expected to remain in place today with precipitable water values remaining in the 1.9 to 2.2 range, which will be in the top 10 percent climatologically for mid June. Expect pretty widespread areal coverage of precipitation today, which will produce locally heavy downpours (2 inches per hour possible). Not everyone will see rainfall that heavy, but if one occurs over an urban or poor drainage area, it will have the potential to cause localized flash flooding. Over the course of the day, areal average rainfall of 1 to 2 inches appears likely, with spot higher totals. However, don't expect widespread totals heavy enough to justify a Flood Watch at this time. Similar to Sunday, expect a significant decrease in areal coverage of showers/storms toward sunset this evening, through the overnight hours. Another surge of showers and storms is expected on Tuesday, with precipitable water values similar to today. However, the impulse driving that round is expected to be further west, more toward western Louisiana, where the axis of heavier rainfall is expected.
The pressure gradient between the expected low pressure over the Bay of Campeche and high pressure over the Carolinas will bring an increase in surface winds across coastal areas, especially on Tuesday. A Wind Advisory may be necessary across coastal areas near and to the south of Interstate 10 on Tuesday. The persistent southeast winds expected will cause higher tide levels along east and south facing shorelines as early as late tonight, and don't see a need for adjustments to the Coastal Flood Advisory at this time.
Regarding temperatures, can't rule out a few spots touching 90 degrees today or tomorrow, but the high areal coverage of showers and storms should hold highs in most areas in the 80s. With the deep moisture remaining in place, overnight lows are going to have a tough time dropping below the mid 70s tonight.
LONG TERM
(Tuesday night through Sunday)
Issued at 338 AM CDT Mon Jun 17 2024
Wednesday and Thursday are expected to be comparatively dry as upper ridging builds back in from the east briefly. The airmass only dries out somewhat with precipitable water values falling to about 1.8 inches and no large scale forcing. We should be back to more of a summertime convective regime with overnight/early morning marine convection and isolated to scattered afternoon precipitation over land. Beyond Thursday, details remain uncertain regarding an inverted trough to our east. At this point, it appears that significant precipitation associated with the trough should remain to the east of the local area for the weekend.
Even with the drier weather Tuesday night/Wednesday, the southeasterly winds will continue pushing water toward the coast, with water levels somewhat higher Wednesday than Tuesday. At this point, it appears that we should stay at advisory levels, but can't entirely rule out the need for a Coastal Flood Warning in a few of the more vulnerable locations. The tidal lakes will probably need to be added in a later forecast package, as they may have issues by Wednesday or Wednesday night.
High temperatures Wednesday and Thursday will creep up a bit from today and tomorrow to around 90, then into the lower and middle 90s over the weekend. Overnight lows will continue to be above normal.
AVIATION
(06Z TAFS)
Issued at 1133 PM CDT Sun Jun 16 2024
Most of the convection has moved out of the region this evening.
This will be a brief break in the rain/storm chances so carried only VCs overnight for showers. That said, mostly VFR anticipated overnight. MCB may drop into IFR ranges with CIGs toward sunrise with also a reduced VIS. Otherwise, convection will again develop again later this morning and continue to stream south to north. A bit higher confidence in convection on Monday vs Sunday as well as timing. Continued VCTS as exact timing of embedded thunder is currently tough to pin down. Otherwise, southeasterly winds will begin to increase across the region with many sites gusting over 20kts by mid to late morning through the end of the cycle. (Frye)
MARINE
Issued at 338 AM CDT Mon Jun 17 2024
Have noted a few locations seeing sustained winds near or just above 20 knots this morning. Small Craft Exercise Caution headlines will be replaced with Small Craft Advisories over most waters at 12z, although it may take until midday for some waters to get near 20 knots sustained. Advisory level conditions expected to continue overnight tonight into at least Tuesday morning. Not out of the question that we could reach gale levels over portions of the waters Tuesday or Wednesday, but we will allow oncoming shift to take another look. The long fetch of these winds will produce a swell train over the open waters which is likely to push seas to at least 9 to 12 feet over the open waters by Tuesday night into Wednesday. Hazardous to dangerous conditions should be anticipated for much of the work week, especially over the open waters, with not much improvement expected until perhaps Friday.
As noted above, with the prolonged southeasterly winds, east and south facing shorelines will see increased water levels beginning overnight tonight, and a Coastal Flood Advisory will remain in effect as issued previously, and will likely eventually need extended into Thursday. Coastal Flood Warnings may be necessary for more sensitive spots by Tuesday night or Wednesday. Will hold off on tidal lakes for this run, as it appears their main water concerns may hold off until Wednesday night or Thursday.
PRELIMINARY POINT TEMPS/POPS
MCB 86 72 84 72 / 80 30 40 10 BTR 88 77 87 76 / 90 30 60 10 ASD 87 76 87 76 / 90 40 60 20 MSY 87 80 87 81 / 90 40 80 30 GPT 88 77 88 77 / 80 40 60 30 PQL 90 76 91 76 / 80 40 40 30
LIX WATCHES/WARNINGS/ADVISORIES
LA...Small Craft Advisory until 7 AM CDT Thursday for LAZ068.
Coastal Flood Advisory from 1 AM Tuesday to 4 PM CDT Wednesday for LAZ066>070-076-078.
GM...Small Craft Advisory from 7 AM this morning to 7 AM CDT Thursday for GMZ536-538-555-557-575-577.
Small Craft Advisory until 7 AM CDT Thursday for GMZ550-552-570- 572.
MS...Coastal Flood Advisory from 1 AM Tuesday to 4 PM CDT Wednesday for MSZ086>088.
GM...Small Craft Advisory from 7 AM this morning to 7 AM CDT Thursday for GMZ538-555-557-575-577.
Small Craft Advisory until 7 AM CDT Thursday for GMZ552-570-572.
Area Forecast Discussion National Weather Service New Orleans LA 349 AM CDT Mon Jun 17 2024
New UPDATE
UPDATE
Issued at 348 AM CDT Mon Jun 17 2024
A final look at marine observations required an adjustment to the Small Craft Advisory over western waters to initiate the advisory immediately. No other changes made.
SHORT TERM
(Today through Tuesday)
Issued at 338 AM CDT Mon Jun 17 2024
Upper ridging centered over the Carolinas this morning, with a second ridge over Baja California. A weakness between the two is combining with the Central American Gyre to pump deep moisture northward across the local area. An area of low pressure is expected to develop over the Bay of Campeche over the next couple of days associated with the Gyre. The impulse that produced showers and storms across the area on Sunday has moved north of the area, but the next impulse is already noted on water vapor imagery over the central Gulf of Mexico moving northward. The 00z LIX sounding last evening already showed precipitable water values in excess of 2 inches, which is above the 90th percentile climatologically.
Already seeing radar returns on LCH radar over their coastal waters, and expect to start seeing them on the HDC radar over the next hour or so. Deep moisture is expected to remain in place today with precipitable water values remaining in the 1.9 to 2.2 range, which will be in the top 10 percent climatologically for mid June. Expect pretty widespread areal coverage of precipitation today, which will produce locally heavy downpours (2 inches per hour possible). Not everyone will see rainfall that heavy, but if one occurs over an urban or poor drainage area, it will have the potential to cause localized flash flooding. Over the course of the day, areal average rainfall of 1 to 2 inches appears likely, with spot higher totals. However, don't expect widespread totals heavy enough to justify a Flood Watch at this time. Similar to Sunday, expect a significant decrease in areal coverage of showers/storms toward sunset this evening, through the overnight hours. Another surge of showers and storms is expected on Tuesday, with precipitable water values similar to today. However, the impulse driving that round is expected to be further west, more toward western Louisiana, where the axis of heavier rainfall is expected.
The pressure gradient between the expected low pressure over the Bay of Campeche and high pressure over the Carolinas will bring an increase in surface winds across coastal areas, especially on Tuesday. A Wind Advisory may be necessary across coastal areas near and to the south of Interstate 10 on Tuesday. The persistent southeast winds expected will cause higher tide levels along east and south facing shorelines as early as late tonight, and don't see a need for adjustments to the Coastal Flood Advisory at this time.
Regarding temperatures, can't rule out a few spots touching 90 degrees today or tomorrow, but the high areal coverage of showers and storms should hold highs in most areas in the 80s. With the deep moisture remaining in place, overnight lows are going to have a tough time dropping below the mid 70s tonight.
LONG TERM
(Tuesday night through Sunday)
Issued at 338 AM CDT Mon Jun 17 2024
Wednesday and Thursday are expected to be comparatively dry as upper ridging builds back in from the east briefly. The airmass only dries out somewhat with precipitable water values falling to about 1.8 inches and no large scale forcing. We should be back to more of a summertime convective regime with overnight/early morning marine convection and isolated to scattered afternoon precipitation over land. Beyond Thursday, details remain uncertain regarding an inverted trough to our east. At this point, it appears that significant precipitation associated with the trough should remain to the east of the local area for the weekend.
Even with the drier weather Tuesday night/Wednesday, the southeasterly winds will continue pushing water toward the coast, with water levels somewhat higher Wednesday than Tuesday. At this point, it appears that we should stay at advisory levels, but can't entirely rule out the need for a Coastal Flood Warning in a few of the more vulnerable locations. The tidal lakes will probably need to be added in a later forecast package, as they may have issues by Wednesday or Wednesday night.
High temperatures Wednesday and Thursday will creep up a bit from today and tomorrow to around 90, then into the lower and middle 90s over the weekend. Overnight lows will continue to be above normal.
AVIATION
(06Z TAFS)
Issued at 1133 PM CDT Sun Jun 16 2024
Most of the convection has moved out of the region this evening.
This will be a brief break in the rain/storm chances so carried only VCs overnight for showers. That said, mostly VFR anticipated overnight. MCB may drop into IFR ranges with CIGs toward sunrise with also a reduced VIS. Otherwise, convection will again develop again later this morning and continue to stream south to north. A bit higher confidence in convection on Monday vs Sunday as well as timing. Continued VCTS as exact timing of embedded thunder is currently tough to pin down. Otherwise, southeasterly winds will begin to increase across the region with many sites gusting over 20kts by mid to late morning through the end of the cycle. (Frye)
MARINE
Issued at 338 AM CDT Mon Jun 17 2024
Have noted a few locations seeing sustained winds near or just above 20 knots this morning. Small Craft Exercise Caution headlines will be replaced with Small Craft Advisories over most waters at 12z, although it may take until midday for some waters to get near 20 knots sustained. Advisory level conditions expected to continue overnight tonight into at least Tuesday morning. Not out of the question that we could reach gale levels over portions of the waters Tuesday or Wednesday, but we will allow oncoming shift to take another look. The long fetch of these winds will produce a swell train over the open waters which is likely to push seas to at least 9 to 12 feet over the open waters by Tuesday night into Wednesday. Hazardous to dangerous conditions should be anticipated for much of the work week, especially over the open waters, with not much improvement expected until perhaps Friday.
As noted above, with the prolonged southeasterly winds, east and south facing shorelines will see increased water levels beginning overnight tonight, and a Coastal Flood Advisory will remain in effect as issued previously, and will likely eventually need extended into Thursday. Coastal Flood Warnings may be necessary for more sensitive spots by Tuesday night or Wednesday. Will hold off on tidal lakes for this run, as it appears their main water concerns may hold off until Wednesday night or Thursday.
PRELIMINARY POINT TEMPS/POPS
MCB 86 72 84 72 / 80 30 40 10 BTR 88 77 87 76 / 90 30 60 10 ASD 87 76 87 76 / 90 40 60 20 MSY 87 80 87 81 / 90 40 80 30 GPT 88 77 88 77 / 80 40 60 30 PQL 90 76 91 76 / 80 40 40 30
LIX WATCHES/WARNINGS/ADVISORIES
LA...Small Craft Advisory until 7 AM CDT Thursday for LAZ068.
Coastal Flood Advisory from 1 AM Tuesday to 4 PM CDT Wednesday for LAZ066>070-076-078.
GM...Small Craft Advisory from 7 AM this morning to 7 AM CDT Thursday for GMZ536-538-555-557-575-577.
Small Craft Advisory until 7 AM CDT Thursday for GMZ550-552-570- 572.
MS...Coastal Flood Advisory from 1 AM Tuesday to 4 PM CDT Wednesday for MSZ086>088.
GM...Small Craft Advisory from 7 AM this morning to 7 AM CDT Thursday for GMZ538-555-557-575-577.
Small Craft Advisory until 7 AM CDT Thursday for GMZ552-570-572.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| WYCM6 - 8747437 - Bay Waveland Yacht Club, MS | 13 mi | 57 min | SE 15G | 87°F | 83°F | 29.93 | ||
| PNLM6 - 8741533 - Pascagoula NOAA Lab, MS | 27 mi | 57 min | 86°F | |||||
| PTBM6 - 8741003 - Petit Bois Island, MS | 32 mi | 57 min | ESE 11G | 81°F | 29.96 | |||
| GDXM6 - Grand Bay Reserve, MS | 35 mi | 102 min | ESE 13 | 83°F | 30.01 | 77°F | ||
| SHBL1 - 8761305 - Shell Beach, LA | 46 mi | 57 min | SE 8.9G | 81°F | 79°F | 29.96 |
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Wind History graph: GPT
(wind in knots)Gulfport
Click for Map
Mon -- 02:31 AM CDT Moonset
Mon -- 05:54 AM CDT Sunrise
Mon -- 08:49 AM CDT 1.46 feet High Tide
Mon -- 04:05 PM CDT Moonrise
Mon -- 06:50 PM CDT 0.30 feet Low Tide
Mon -- 08:00 PM CDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 02:31 AM CDT Moonset
Mon -- 05:54 AM CDT Sunrise
Mon -- 08:49 AM CDT 1.46 feet High Tide
Mon -- 04:05 PM CDT Moonrise
Mon -- 06:50 PM CDT 0.30 feet Low Tide
Mon -- 08:00 PM CDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Gulfport, Gulfport Harbor, Mississippi, Tide feet
| 12 am |
| 0.8 |
| 1 am |
| 0.8 |
| 2 am |
| 0.8 |
| 3 am |
| 0.9 |
| 4 am |
| 1.1 |
| 5 am |
| 1.2 |
| 6 am |
| 1.3 |
| 7 am |
| 1.4 |
| 8 am |
| 1.5 |
| 9 am |
| 1.5 |
| 10 am |
| 1.4 |
| 11 am |
| 1.4 |
| 12 pm |
| 1.2 |
| 1 pm |
| 1 |
| 2 pm |
| 0.8 |
| 3 pm |
| 0.6 |
| 4 pm |
| 0.5 |
| 5 pm |
| 0.4 |
| 6 pm |
| 0.3 |
| 7 pm |
| 0.3 |
| 8 pm |
| 0.3 |
| 9 pm |
| 0.4 |
| 10 pm |
| 0.5 |
| 11 pm |
| 0.6 |
Tide / Current data from XTide NOT FOR NAVIGATION
Cat Island, Mississippi, Tide feet
Mobile, AL,
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