Wednesday, February19, 2020
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Marine Weather and Tides
Perdido Beach, AL

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:24AMSunset 5:41PM Wednesday February 19, 2020 4:00 AM CST (10:00 UTC) Moonrise 4:47AMMoonset 3:11PM Illumination 19% Phase: Waning Crescent; Moon at 25 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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GMZ650 Coastal Waters From Pensacola Fl To Pascagoula Ms Out 20 Nm- Coastal Waters From Okaloosa Walton County Line Fl To Pensacola Fl Out 20 Nm- 358 Am Cst Wed Feb 19 2020
.dense fog advisory in effect until 6 am cst early this morning...
.small craft advisory in effect from Thursday afternoon through Friday afternoon...
Today..Southwest winds 8 to 13 knots early becoming northeast. Seas 1 to 2 feet. Dominant wave period 5 seconds. Patchy dense fog in the morning. Chance of rain in the morning, then slight chance of rain in the afternoon.
Tonight..North winds 10 to 15 knots becoming east 8 to 13 knots. Seas around 2 feet. Dominant wave period 5 seconds. Slight chance of rain.
Thursday..East winds 8 to 13 knots becoming north 20 to 25 knots with gusts to around 35 knots. Seas 1 to 2 feet building to 1 to 4 feet. Dominant wave period 5 seconds. Rain likely in the morning, then rain in the afternoon.
Thursday night..North winds around 25 knots becoming northeast. Gusts up to 35 knots. Seas 2 to 6 feet. Dominant wave period 5 seconds. Showers likely in the evening, then slight chance of showers after midnight.
Friday..Northeast winds around 25 knots with gusts to around 35 knots diminishing to 18 to 23 knots. Seas 2 to 6 feet. Dominant wave period 5 seconds.
Friday night..Northeast winds 15 to 20 knots. Gusts up to 25 knots. Seas 2 to 4 feet. Dominant wave period 5 seconds.
Saturday..Northeast winds 13 to 18 knots. Seas 2 to 3 feet. Dominant wave period 6 seconds.
Saturday night..East winds 8 to 13 knots. Seas 1 to 2 feet.
Sunday..Southeast winds 8 to 13 knots. Seas 1 to 2 feet. Chance of showers.
Sunday night..South winds 13 to 18 knots. Seas 2 to 3 feet. Showers likely.
GMZ600 Synopsis For Pascagoula Ms To Okaloosa Walton County Line Fl Out 60 Nm Including Major Area Bays And Sounds- 358 Am Cst Wed Feb 19 2020
Synopsis..A cold front located near the coast moves through the marine area this morning with light southerly winds becoming a light to moderate northerly flow. Dense fog over the near shore waters and much of the bay waters will dissipate by Sunrise as the front moves through. The offshore flow becomes strong on Thursday then gradually subsides and becomes northeasterly Friday into Saturday, then a light to moderate southeasterly flow develops on Sunday.


7 Day Forecast for Marine Location Near Perdido Beach, AL
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location: 30.39, -87.43     debug


Area Discussion for - Mobile/Pensacola, FL
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FXUS64 KMOB 190602 AFDMOB

Area Forecast Discussion National Weather Service Mobile AL 1202 AM CST Wed Feb 19 2020

NEAR TERM UPDATE /Now Through Wednesday night/. Showers are currently ongoing along and north of Highway 84 where a weak cold front is pushing south into the local area. This front will continue to advance through overnight and early morning hours, reaching the coast around sunrise tomorrow morning. Ahead of the front, dense fog is ongoing along the coast and a Dense Fog Advisory remains in effect until 9 am CST. Expecting overall coverage and intensity of showers to decrease as the front moves south, due primarily to waning instability and weakening lift/forcing as the front itself becomes more diffuse and stalls roughly along the coast. Should see coastal fog dissipate mid- to late-morning as light northerly winds set up and halt the transport of warm and moist Gulf air over cool near shore waters. Will continue to see some scattered showers across the area during the day Wednesday as an unsettled south-southwest flow in the 925-850mb layer overruns the shallow stable "dome" of air leftover from the frontal passage. A second, stronger cold front approaches the area and brings higher rain chances back to the area late Wednesday night. /49

EXTENDED TERM UPDATE /Saturday Through Tuesday/. A deep layer dry airmass will remain in place across our forecast area on Saturday underneath northwest flow aloft. A surface ridge of high pressure will meanwhile continue to build across the Eastern Seaboard and southeastern states. Mostly clear skies and cool temperatures will persist across our area on Saturday with this pattern. Highs are forecast to range in the mid to upper 50s. Clouds may gradually increase on Saturday night, especially in our northwest zones as layer moisture trends upward in advance of a shortwave trough approaching the Mississippi Valley region. Will keep a dry forecast through Saturday night as deeper moisture and ascent remain well to the northwest of our area. Lows by Saturday night remain below normal in the mid to upper 30s in our interior and in the lower to mid 40s along the immediate coast.

An upper level trough located across the central Plains on will Sunday will lift northeastward across the Upper Midwest Sunday night into Monday. The flow aloft transitions semi-zonal across our CWA on the base of this feature. An associated surface low pressure system also moves from the southern Plains toward the Mississippi and Tennessee Valley regions during this time frame. An associated cold front may push from west to east across our area during the day Monday. Southerly flow ahead of this approaching system will bring a return of low level moisture Sunday night into Monday. A shortwave trough embedded in the zonal flow will move across the region, bringing an increased chance of rain showers starting Sunday afternoon, with the best coverage still looking to be Sunday night into Monday morning. There remains some uncertainty on the timing of the next system, but there could at least be a lingering chance of showers into Tuesday, so will leave low POPs in place. Temperatures will be mild late this weekend into early next week. /21

AVIATION. 06Z issuance . LIFR/VLIFR conditions ongoing along the coast where dense fog is developing and will continue to impact terminals through the early morning hours Wednesday. Fog isn't as widespread inland, but lower visbys can be expected in showers along a cold front currently approaching the Highway 84 corridor. The front pushes to the coast by early Wednesday morning, bringing northerly winds and some relief from fog but little improvement to cigs. /49

PREV DISCUSSION. /issued 525 PM CST Tue Feb 18 2020/

NEAR TERM /Now Through Wednesday night/. Midlevel shortwave energy will continue to stream east through the zonal upper level flow over the Southeast, with a cold front moving south over the forecast area overnight in response. Light southwesterly low level flow over the region along with the passing shortwave energy will bring increasing coverage of rainshowers to the region, with the best coverage being along and north of the cold front, and for the forecast area, over the northern half of the forecast area. Rain coverage will decrease Wednesday morning into the afternoon as the passing shortwave energy moves east of the forecast area, but another round of shortwave energy along with the approaching shortwave trough will bring another round of rain to the region beginning Wednesday night as isentropic upglide increases along and north of the stalled front. Fog over our Al/FL coastal counties is again possible tonight, with continued southerly flow over cool coastal waters. Am expecting the fog to decrease as cooler northerly flow moves over the forecast behind the front, but am expecting this to be mid Wednesday morning on. Temperatures will see a drop from the current well above seasonal levels. Low temperatures tonight are expected to range from the low 50s over northwestern-most portions of the forecast area to low 60s southeast of I-65. For Wednesday night, around 50 northwest to upper 50s southeast of I-65. High temperatures Wednesday are expected to range from around 50s over northwestern portions of the forecast area to low 70s over the western Florida panhandle. /16

SHORT TERM /Thursday Through Friday night/. The cold front stalled over the region will begin to move south in response to the upper trough moving over and south of the Tennessee River Valley. Rain is expected to move south of the forecast area Thursday night, with rainfall totals for the tonight through Thursday night event ranging from around 2 inches over and north of Highway 84 to 1 inch along the coast. A few embedded showers are expected to be stronger, but with limited to no instability for thunderstorms, am not expecting significantly high rainfall amounts. Even so, with a good portion of the forecast area along with areas north seeing wet to saturated soils, what does fall can quickly flow into area streams exacerbating areal flooding on the mainstem rivers of the area as this water flows downstream, along with causing rapid rises on smaller creeks.

Below seasonal temperatures return to the forecast area, with high temperatures mainly in the 50s for Thursday, and low temperatures Thursday night ranging from the mid 30s north to low 40s along the coast. /16

EXTENDED TERM /Friday Through Monday/. Dry, moderate to strong northerly winds will persist into Friday morning as the strong 1043mb surface high pressure area centered over Missouri moves southeast, resulting in a strong pressure gradient across the area. This high pressure will continue to move toward the southeast and weaken slightly to 1035mb as it settles across the entire southeast conus by late in the week. This high pressure, along with an upper ridge over the southern plains shifting eastward over the region, will result in a dry period Friday through noon Sunday. Scattered to numerous rain showers will return Sunday afternoon through early next week due to the combination of a return flow setting up on the backside of the departing surface high pressure area, and an upper level trough approaching from the west. A surface low pressure area is also expected to form over the southern plains on Sunday and track eastward through Monday. We potentially could be in the warm sector of this system, so we may see definite rain chances return mainly Sunday night into Monday, with periods of heavy rain possible. /22

MARINE. A low level ridge stretching west over the northern Gulf of Mexico will continue to bring light to at times moderate southeast to southerly flow to area waters into the overnight hours. A cold front will begin to move over area waters late tonight into Wednesday morning, stalling over the northern Gulf of Mexico Wednesday. The front will begin to move south Thursday into Thursday night in response to an upper level shortwave trough digging south over the eastern Conus. Light to moderate, variable direction flow will affect mainly open Gulf waters, with light to moderate offshore flow over area bays. Dense fog will continue to be an issue for area coastal bays and nearshore waters until the front brings stronger and cooler northerly flow. Have issued a Dense Fog Advisory for area waters for tonight into Wednesday morning for area bays and near shore waters until 10am Wednesday morning with this package. As the upper trough digs south, flow behind the front will become a general strong offshore beginning Thursday and lasting into Friday night. A Small Craft Advisory will likely be issued beginning Thursday. Later Friday night into the weekend will see a return of light to moderate onshore flow as a the next system organizes over the Plains and a cold front begins to move east towards the forecast area. /16

MOB WATCHES/WARNINGS/ADVISORIES. AL . Dense Fog Advisory until 9 AM CST Wednesday for ALZ261>266.

FL . Dense Fog Advisory until 9 AM CST Wednesday for FLZ201>206.

MS . Dense Fog Advisory until 9 AM CST Wednesday for MSZ078-079.

GM . Dense Fog Advisory until 9 AM CST Wednesday for GMZ630>636-650- 655.



This product is also available on the web at: http://weather.gov/mob


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PPTA1 10 mi61 min 67°F 1020.3 hPa (+0.3)
PCLF1 - 8729840 - Pensacola, FL 12 mi43 min 68°F 1020.1 hPa
WBYA1 21 mi43 min 66°F
WKXA1 - Weeks Bay Reserve, AL 21 mi76 min 67°F 1020 hPa67°F
42012 - Orange Beach AL Buoy 23 mi31 min SW 3.9 G 5.8 67°F 65°F1020.1 hPa
MBLA1 - Middle Bay Light, AL 31 mi121 min Calm 63°F 1019.6 hPa (+0.3)
FMOA1 - 8734673 - Fort Morgan, AL 33 mi43 min 63°F 1020 hPa
DPIA1 - Dauphin Island, AL 36 mi61 min NW 5.1 G 5.1 61°F 1020 hPa (+0.3)
MBPA1 36 mi43 min 62°F 62°F
PTOA1 37 mi43 min 65°F 65°F
CRTA1 - Cedar Point, AL 38 mi61 min WNW 6 65°F 1020 hPa
MCGA1 - 8736897 - Coast Guard Sector Mobile, AL 38 mi49 min 69°F 60°F1020.4 hPa
OBLA1 - 8737048 - Mobile State Docks, AL 39 mi49 min 64°F 58°F1020.2 hPa
KATA1 - Katrina Cut, AL 42 mi61 min NNW 8.9 54°F 1020.7 hPa (+0.7)

Wind History for Pensacola, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pensacola Naval Air Station, FL7 mi2.1 hrsSSW 30.25 miFog69°F66°F93%1019.7 hPa
Pensacola - Pensacola International Airport, FL13 mi68 minWNW 50.50 miFog70°F69°F97%1020 hPa
Jack Edwards Airport, AL15 mi66 minNNE 30.25 miFog67°F67°F100%1020 hPa
Sonny Callahan Airport, AL24 mi66 minN 00.25 miFog64°F64°F100%1020.3 hPa

Link to 5 minute data for KNPA

Wind History from NPA (wind in knots)
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Last 24hrNE3SE3SE4E3E6E5E5E10SE9SE8E8E6E4E6SE4S8S5S3Calm--SW5SW3SW4S3
1 day agoNE4NE5N4NE5NE3E5E4E3E5SE4--SE6SE4SE5E6E6E4E5----E7E6--E3
2 days agoE7NE7--N8--NE14NE11N13--E12E10E6E5E6N5NE4NE5N6NE5--NE6NE6NE6NE6

Tide / Current Tables for Nix Point, Perdido Bay, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Entrance, Pensacola Bay, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
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wmap_A
GEOS Local Image of Southeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Mobile/Pensacola, FL (5,6,7,8)
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Ground Weather Radar Station Mobile, AL
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weather_mapweather_map weather_map

Gulf Stream Current


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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.