Post Reply 
Spring Hill, Florida Area
12-13-2009, 07:45 AM
Post: #1051
Spring Hill, Florida Area
December 12, 2009 Observations:
Daytime High was 80° F
Overnight Low was 56° F
Mean Temperature was 68° F

Average Daytime High is 73° F
Average Overnight Low is 47° F
Average Mean for date 60° F

Record High is 85° in 2001
Record Low is 21° in 1995

Sun and clouds mix as warm front passed through in the mid morning hours.

Temps rose slightly through the night to near 60° at dawn.

Winds south/southeast winds at 10-15 mph with gusts to 22 mph

Dewpoints have risen to the low 60's

Forecast for Sunday the 13th:
Today: Areas of fog before 9 a.m. Otherwise, mostly sunny, with a high near 83. South southwest wind between 6 and 10 mph.

Tonight: Areas of fog after 1 a.m. Otherwise, mostly clear, with a low around 61. Light and variable wind.
Find all posts by this user
Quote this message in a reply
12-14-2009, 05:27 PM
Post: #1052
Spring Hill, Florida Area
December 13, 2009 Observations:
Daytime High was 82° F
Overnight Low was 67° F
Mean Temperature was 74.5° F

Average Daytime High is 73° F
Average Overnight Low is 46° F
Average Mean for date 59.5° F

Record High is 85° in 1991
Record Low is 28° in 1995

Pt. Sunny with fog after 6 p.m. and through evening.

Winds were south/southeast at 5-10 mph

Dewpoints in the 60’s

Forecast for Monday the 14th:
Today: Widespread dense fog before 10 a.m. Otherwise, partly sunny, with a high near 83. Calm wind becoming west northwest around 6 mph.

Tonight: Areas of dense fog after midnight. Otherwise, partly cloudy, with a low around 62. Northwest wind around 6 mph becoming calm.
Find all posts by this user
Quote this message in a reply
12-15-2009, 01:59 PM
Post: #1053
Spring Hill, Florida Area
[Image: noaa.gif]

[Image: image1.gif]
Find all posts by this user
Quote this message in a reply
12-15-2009, 02:00 PM
Post: #1054
Spring Hill, Florida Area
December 14, 2009 Observations:
Daytime High was 82° F
Overnight Low was 67° F
Mean Temperature was 74.5° F

Average Daytime High is 73° F
Average Overnight Low is 46° F
Average Mean for date 59.5° F

Record High is 85° in 1991
Record Low is 27° in 1988

Fog overnight into morning hours (prompted dense fog advisory), then Pt. Sunny after 11 a.m.

Dewpoints coming up to the mid 60's

Winds south/southeast at 5-10 mph

Forecast for Tuesday the 15th:
Today: Areas of dense fog before 9 a.m. Otherwise, mostly sunny, with a high near 81. Calm wind becoming south between 5 and 8 mph.

Tonight: A 20 percent chance of showers after midnight. Areas of fog after midnight. Otherwise, mostly cloudy, with a low around 60. Calm wind becoming north around 5 mph.
Find all posts by this user
Quote this message in a reply
12-16-2009, 05:23 PM
Post: #1055
Spring Hill, Florida Area
December 15, 2009 Observations:
Daytime High was 81° F
Overnight Low was 64° F
Mean Temperature was 73.5° F

Average Daytime High is 72° F
Average Overnight Low is 46° F
Average Mean for date 59° F

Record High is 87° in 1991
Record Low is 30° in 2004

Fog after 5 a.m. (prompted advisory till 9 a.m.). Then Pt. Sunny with more fog after 8 p.m.

Dewpoints in the low 60's

Winds south/southwest at 5-10 mph

Forecast for Wednesday the 16th:
Today: A 30 percent chance of showers. Mostly cloudy, with a high near 72. North northeast wind between 9 and 13 mph.

Tonight: Mostly cloudy, with a low around 57. Northeast wind between 10 and 14 mph, with gusts as high as 20 mph.
Find all posts by this user
Quote this message in a reply
12-16-2009, 05:25 PM
Post: #1056
Spring Hill, Florida Area
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
335 PM EST WED DEC 16 2009

LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK-MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO-CHARLOTTE-LEE

INCLUDING THE CITIES OF...CEDAR KEY...CHIEFLAND...CRYSTAL RIVER...INVERNESS...BUSHNELL...THE VILLAGES...BROOKSVILLE...SPRING HILL...NEW PORT RICHEY...ZEPHYRHILLS...CLEARWATER...ST. PETERSBURG...BRANDON...TAMPA...LAKELAND...WINTER HAVEN...BRADENTON...WAUCHULA...SEBRING...AVON PARK...SARASOTA...VENICE...ARCADIA...PORT CHARLOTTE...PUNTA GORDA...CAPE CORAL...FORT MYERS

335 PM EST WED DEC 16 2009

...POTENTIAL FOR SEVERE STORMS AND COASTAL HAZARDS ON FRIDAY...

AN AREA OF LOW PRESSURE IS EXPECTED TO DEVELOP OVER THE WESTERN GULF OF MEXICO ON THURSDAY. THIS LOW IS THEN EXPECTED TO INTENSIFY AS IT MOVES EAST ACROSS THE NORTHERN GULF COAST THURSDAY NIGHT AND THEN ACROSS THE NORTHERN FLORIDA PENINSULA ON FRIDAY. AHEAD OF THE LOW AN INCREASING MOIST SOUTHERLY WIND FLOW WILL DEVELOP OVER WEST CENTRAL AND SOUTHWEST FLORIDA THURSDAY NIGHT AND FRIDAY. THIS INCREASING SOUTHERLY FLOW WILL HELP TO BUILD SEAS OVER THE ADJACENT GULF WATERS. THE BUILDING SEAS WILL GENERATE LARGE BREAKING WAVES AND DANGEROUS RIP CURRENTS ALONG AND HIGH SURF ALONG AREA BEACHES ON FRIDAY WITH ABOVE NORMAL TIDES POSSIBLY CAUSING SOME COASTAL FLOODING AT TIMES OF HIGH TIDE ON FRIDAY.

THE STRONG SOUTHERLY WIND FLOW AND INCREASING SEAS WILL MAKE FOR HAZARDOUS BOATING CONDITIONS OVER THE GULF WATERS AND INLAND WATER WAYS...AND MARINERS...FISHERMEN...AND BOATING ENTHUSIASTS MAY WANT TO POSTPONE TRIPS INTO THE GULF UNTIL CONDITIONS IMPROVE.

AS THE LOW PRESSURE AREA APPROACHES A MORE FAVORABLE ENVIRONMENT FOR SEVERE STORMS WILL DEVELOP OVER WEST CENTRAL AND SOUTHWEST FLORIDA LATE THURSDAY NIGHT INTO FRIDAY. AS THE LOW MOVES EAST NORTHEAST ACROSS THE NORTHERN PENINSULA DURING THE DAY ON FRIDAY A SQUALL LINE WILL LIKELY DEVELOP ALONG AND AHEAD OF A TRAILING COLD FRONT OVER THE ADJACENT GULF WATERS EARLY FRIDAY MORNING WITH THE LINE OF STORMS LIKELY TO AFFECT THE REGION FROM MID MORNING THROUGH THE AFTERNOON AND EARLY EVENING HOURS.

AT THE CURRENT TIME SUFFICIENT LOW LEVEL MOISTURE COMBINED WITH STRONG PREFRONTAL CONVERGENCE...SUFFICIENT DEEP LAYERED SHEAR AND A STRONG LOW LEVEL JET MAY HELP TO PRODUCE ORGANIZED STORMS CONTAINING DAMAGING WINDS AND POSSIBLE ISOLATED TORNADOES AND MARINE WATERSPOUTS. IN ADDITION SOME LOCALLY HEAVY RAINFALL AND DEADLY LIGHTNING STRIKES WILL ACCOMPANY THE STORMS AS THEY MOVE ACROSS THE REGION. IN THE WAKE OF THE COLD FRONT A BRISK NORTHWESTERLY WIND FLOW WILL USHER IN A MUCH COOLER AND DRIER AIR MASS WITH BELOW NORMAL TEMPERATURES EXPECTED ACROSS THE REGION THROUGH THE UPCOMING WEEKEND...WITH SOME NEAR FREEZING TEMPERATURES POSSIBLE OVER THE NATURE COAST BY SUNDAY NIGHT INTO MONDAY. IN ADDITION TO THE COOLER TEMPERATURES THE BRISK NORTHWEST WIND FLOW WILL KEEP SEA ELEVATED OVER THE ADJACENT GULF WATERS WITH HAZARDOUS BOATING CONDITIONS CONTINUING.

ALL RESIDENTS AND VISITORS OF WEST CENTRAL AND SOUTHWEST FLORIDA SHOULD REMAIN ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS DURING THURSDAY NIGHT INTO FRIDAY.
Find all posts by this user
Quote this message in a reply
12-17-2009, 07:43 AM
Post: #1057
Spring Hill, Florida Area
December 16, 2009 Observations:
Daytime High was 72° F
Overnight Low was 60° F
Mean Temperature was 66° F

Average Daytime High is 72° F
Average Overnight Low is 46° F
Average Mean for date 59° F

Record High is 84° in 2001
Record Low is 27° in 2002

A frontal boundary came through in early morning hours and set up a sun/clouds mix through day with mostly cloudy conditions at times.

Dewpoints dropped from the 60's to the mid 50's

Winds started light and then shifted to the northeast at 10-15 mph

Gulf Water Temp coming up to 70°

Forecast for Thursday the 17th:
Today: A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 71. East northeast wind between 11 and 15 mph, with gusts as high as 21 mph.

Tonight: A chance of showers, then showers and possibly a thunderstorm after midnight. Low around 64. East wind between 8 and 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Find all posts by this user
Quote this message in a reply
12-17-2009, 07:52 PM
Post: #1058
Spring Hill, Florida Area
National Weather Service Tampa Bay, Ruskin, Florida
1:35 p.m EST Thursday December 17, 2009

Strong to Severe Thunderstorms Possible on Friday.

Short Term (Tonight through Saturday)...Forecast focus is going to be on the development of a potentially significant storm system across the Gulf of Mexico tonight and Friday. Potential impacts on the area will include possible severe weather and high surf.

Water Vapor imagery depicts a shortwave trough ejecting to the east out of Texas and towards the Gulf. A corresponding surface low is progged to develop in the Central Gulf this evening and rapidly intensify as a Vort Max drops into the base of the trough. This will allow for an increase of warm humid air ahead of the developing surface low. Temperature will remain mild tonight as dewpoints rise on the southeasterly flow.

Timing of the precip arrival is fairly similar on both models with the solution being close enough that most differences can be blended. Both models show precip arriving towards 12Z and then show the heaviest QPF (Quantitative Precipitation Forecast) taking place between 12 and 18Z with additional rainfall between 18Z and 00Z...But a look at the NAM12 3 hour precip fields suggests that after 21Z most of the precip will be over. Both models suggest a widespread rainfall of around an inch with higher amounts possible farther north closer to the Lows track.

Severe weather is a concern with this system. The Surface low track is favorable over the northern panhandle. Also of concern will the be Low continuing to deepen fairly rapidly as it moves through. While the Upper System will track well to the north it will be much closer than the previous few systems and this may help the broad scale ascent through dynamic lifting. Moisture will not be an issue as dewpoints are likely to approach 70 degrees. Shear will be favorable as 0-6km bulk values range anywhere from 40-60 knots. The limiting factor will be instability. Clouds and early rainfall tomorrow will hamper diurnal heating. . .And moderate cape values are expected. Hodographs suggest a supercell potential will come turning present...And this will be likely yearly. Given the low cape and high shear environment these would likely be low topped. Tornadic potential certainly exists with such high shear values of 20 to 30 knots. The threat should shift to the a linear threat with damaging wind potential by 18Z as the cold front approaches and the Hodograph displays more unidirectional shear.

The cold front should slide through the area before 12Z on Saturday (7 a.m.) and cooler air will keep highs down in the upper 50's to the middle 60's on Saturday with drying and sunnier weather expected.

Long Term (Saturday night through Wednesday)...Plenty of cold and dry air will be making its way down the peninsula with a low pressure system pulling away to the Northeast. Rather benign weather conditions can be expected for the majority of the period with low rainfall chances and below normal temps. By the end of the period...The next front will push its way into the Gulf and help produce a chance for some scattered showers.


Main focus continues to be the possibility of freezing conditions for interior portions of the Nature Coast. Models remain consistent showing freezing temps Monday and Tuesday mornings before rebounding somewhat through Wednesday. Along with the low temps...Winds could be strong enough to warrant a wind child advisory on Monday and Tuesday Morning from interior portions from Levy to Polk Counties. High temps across the region will be about 5-10 degrees below normal before rising to near normal conditions on Wednesday afternoon.
Find all posts by this user
Quote this message in a reply
12-17-2009, 07:55 PM
Post: #1059
Spring Hill, Florida Area
December 17, 2009 Observations:
Daytime High was 75° F
Overnight Low was 57° F
Mean Temperature was 66° F

Average Daytime High is 72° F
Average Overnight Low is 46° F
Average Mean for date 59° F

Record High is 86° in 2001
Record Low is 30° in 1988

Sun and clouds through 3 p.m. then increasing cloudiness.

Winds northeast 5-10 mph till afternoon and evening when they were 15-20 mph with gusts to 28 mph

Dewpoints in the low 50's, but slowly rising to the upper 50's by evening.

Forecast for Friday the 18th:
Friday: Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4 p.m. High near 72. South southeast wind 10 to 13 mph increasing to between 18 and 21 mph. Winds could gust as high as 29 mph. Chance of precipitation is 90%.

Friday Night: A chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7 p.m and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 51. West northwest wind between 14 and 22 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
Find all posts by this user
Quote this message in a reply
12-17-2009, 07:57 PM
Post: #1060
Spring Hill, Florida Area
[Image: east_snow_121709_2.jpg]
East coast Storm

[Image: image2.gif]
Florida Long Term Forecast

12.17.09
Find all posts by this user
Quote this message in a reply
Post Reply 


Forum Jump:


User(s) browsing this thread: 1 Guest(s)