Restoring confidence in NHC

By: Dr. Jeff Masters , 12:24 PM GMT on July 11, 2007

Share this Blog
2
+

There are no threat areas in the tropical Atlantic to discuss, and none of the computer models are forecasting tropical storm formation over the coming week. In the Pacific, an exceptionally large Category 4 typhoon, Man-Yi, will pass close to Okinawa on Friday, and hit Japan on Saturday. Winds at Okinawa have been as high as 50 mph with gusts to 70 mph.

Some links on Man-Yi, sent to me by Jim Edds:

Live camera feed from Southern Okinawa:

click on the pic arrow on the bottom right.

Okinawa radar.
click on Okinawa to zoom in - awesome shot

Camera feed with some audio.
click on the first "no image" box then select "report 17/66"


Latest satellite image of Typhoon Man-Yi, courtesy of NOAA.

Restoring confidence in the NHC
Interim National Hurricane Director Dr. Ed Rappaport has two immediate tasks--restoring morale fractured by Bill Proenza's turbulent 6-month tenure, and restoring public confidence in the Hurricane Center's ability to do their job. With the steadying influence of Dr. Rappaport, a highly respected and talented hurricane scientist, I expect that the staff of NHC will put out their best hurricane forecasts ever this season. Aiding in this endeavor will be the availability of a new hurricane tracking, intensity, and storm surge model called the HWRF--Hurricane Weather and Research Forecast Model. In addition, several of the other reliable models used by the forecasters, such as the GFS and GFDL, have had upgrades since last hurricane season. Furthermore, the Air Force Hurricane Hunters will be carrying the SFMR instrument for the first time, which can measure winds speeds at the ocean surface everywhere the aircraft fly.

Forecasters at the National Hurricane Center made their best track forecasts ever for storms in the Atlantic in 2006. The mean track errors for 12 to 72 hour forecasts were 15% - 20% lower than during 2001-2005. Track errors for Atlantic storms have improved about 50% in the past 15 years (Figure 1), a remarkable achievement that has undoubtedly saved lives and hundreds of millions of dollars. The track error in 2006 for a 24 hour forecast was 58 miles; 112 miles for a 48 hour forecast; and 171 miles for a 72 hour forecast. Track errors for 96 and 120 hour forecasts were 236 miles and 305 miles--the second best on record (2003 set the record). NHC's long-range 120 hour forecasts had a significant bias to the west of 94 miles--about double the bias of what the computer models were forecasting. Thus, when the models correctly called for systems to recurve out to sea, NHC human forecasters tended to resist following what the models were saying.



Figure 1. Track forecast skill since 1990 in the Atlantic for the official NHC forecasts. Track errors are given in nautical miles (100 n mi = 115 miles). Skill is rated compared to a "zero skill" forecast using NHC's CLIPER5 model. The CLIPER model (short for CLImatology and PERsistence) is a model that makes a forecast based on historical paths hurricane have taken, along with the fact that hurricanes tend to keep moving in the direction they are going (i.e., their current motion persists).

Intensity forecasts
Intensity forecasts since 1990 have shown little or no improvement, and 2006 was no exception (Figure 2). One encouraging result was the emergence of the GFDL's intensity model as the best intensity model for 2006. This is the first time that a non-statistical model has made the best intensity forecasts. With the major improvements that were added for the 2007 version of the GFDL, plus the availability of the HWRF model, I am hopeful that this year will see the first noticeable improvement in intensity forecasts since 1990.



Figure 2. Intensity forecast skill since 1990 of the official NHC Atlantic forecasts. Intensity errors are given in knots (10 knots = 11.5 mph).

Jeff Masters

Reader Comments

Comments will take a few seconds to appear.

Post Your Comments

Please sign in to post comments.

or Join

Not only will you be able to leave comments on this blog, but you'll also have the ability to upload and share your photos in our Wunder Photos section.

Display: 0, 50, 100, 200 Sort: Newest First - Order Posted

Viewing: 238 - 188

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36Blog Index

238. AshleyDillo
6:09 PM GMT on July 11, 2007
Italics off??
Member Since: Posts: Comments:
237. Drakoen
6:08 PM GMT on July 11, 2007
Michael i jsut wanted to make it simple but i did give a link and an explanation from Wikipedia.
Member Since: October 28, 2006 Posts: 57 Comments: 30825
236. groundman
6:04 PM GMT on July 11, 2007
osted By: StormJunkie at 4:11 PM GMT on July 11, 2007.
Afternoon all ☺

......................................

Actually, I think StormW called it out early this morning, not that it really matters, this is not king of blog...lol just giving y'all a hard time. :~)

Anywho, looks like it will be interesting to keep an eye on the models over the next few days. Anyone checked the phase evolution page yet? Got to get back to work.

................................................


That would be QUEEN of the blog in my case LOL, maybe I should change my name to groundwoman, sounds like a squirrel??

And BTW I agree steamtracker re BA in meteorology it's amazing how much you learn without even trying.
Member Since: Posts: Comments:
234. Drakoen
6:02 PM GMT on July 11, 2007
Posted By: streamtracker at 6:02 PM GMT on July 11, 2007.

So if I'm catching on here, between the intensifying TCHP and the MJO headed our way, by mid-August we could be in for some really intense storms.

Is there anyway to predict what will happen to wind shear four weeks from now?


No we can't forecast wind shear that far. Long range computer models go out to 144 hours. A good model for wind shear forecast is the NOGAPS sometime the CMC and GFS as well.
Member Since: October 28, 2006 Posts: 57 Comments: 30825
233. Drakoen
6:00 PM GMT on July 11, 2007
The MJO also can show you dry air retreating back to Africa but notice the MJO gets stronger with time. Especially easter of the lesser Antilles. The MJO spread right back to Africa by July 19th. You can already see the MJO affects. Compare th mositure now in the ITCZ to when 96L was there. Way more moisture now.
Member Since: October 28, 2006 Posts: 57 Comments: 30825
232. streamtracker
5:58 PM GMT on July 11, 2007
So if I'm catching on here, between the intensifying TCHP and the MJO headed our way, by mid-August we could be in for some really intense storms.

Is there anyway to predict what will happen to wind shear four weeks from now?
Member Since: Posts: Comments:
231. Tazmanian
5:59 PM GMT on July 11, 2007
Man-yi is intensfying at a fast rate
Member Since: Posts: Comments:
230. Drakoen
5:57 PM GMT on July 11, 2007
Posted By: streamtracker at 5:56 PM GMT on July 11, 2007.

Thanks Drakoen - I feel like I'm working on a BA in meteorology when I visit this blog.


LOL. no problem.
Member Since: October 28, 2006 Posts: 57 Comments: 30825
229. streamtracker
5:54 PM GMT on July 11, 2007
Thanks Drakoen - I feel like I'm working on a BA in meteorology when I visit this blog.
Member Since: Posts: Comments:
228. Drakoen
5:53 PM GMT on July 11, 2007
The Green areas of the graphic show moisture. The moisture can overide the SAL that blankets the CATL.

The graphic i posted before the MJO graphic is the maximum hurricane potential which shows how much a system can intensify to given the right conditions.
Member Since: October 28, 2006 Posts: 57 Comments: 30825
227. weathersp
5:51 PM GMT on July 11, 2007
The top of the Miami International Airport Gate Assignment tower is on fire...
Member Since: Posts: Comments:
226. Drakoen
5:50 PM GMT on July 11, 2007
The last graphic the i posted what the MJO. It stand for Madden Julian Oscillation. Basically an increase in the moisture content.

Tropical cyclone influence
Although tropical cyclones occur throughout the boreal warm season (typically May-November) in both the Pacific and the Atlantic basins, in any given year there are periods of enhanced/suppressed activity within the season. There is evidence that the MJO modulates this activity (particularly for the strongest storms) by providing a large-scale environment that is favorable (or unfavorable) for development. The strongest tropical cyclones tend to develop when the MJO favors enhanced precipitation. As the MJO progresses eastward, the favored region for tropical cyclone activity also shifts eastward from the western Pacific to the eastern Pacific and finally to the Atlantic basin. While this relationship appears robust, the MJO is one of many factors that contribute to the development of tropical cyclones. For example, it is well known that sea surface temperatures must be sufficiently warm and vertical wind shear must be sufficiently weak for tropical disturbances to form and persist.

Link
Member Since: October 28, 2006 Posts: 57 Comments: 30825
225. A4Guy
5:48 PM GMT on July 11, 2007
Drak - what is that graphic showing? Thanks.
Member Since: Posts: Comments:
224. weathersp
5:48 PM GMT on July 11, 2007
Is that the MJO Drako?

BTW AGREE^^^
Member Since: Posts: Comments:
223. streamtracker
5:49 PM GMT on July 11, 2007
A polite suggestion for Drakoen and others who are posting these great graphics of geophysical data.

Please provide a brief narrative of what it is, why it's relevant, and a link to the source.

Sometimes I can figure it out from the thread, but sometimes I just scratch my balding head.

Sure would help us newbies to follow what your trying to communicate.
Member Since: Posts: Comments:
222. Drakoen
5:46 PM GMT on July 11, 2007
heres the graphic
Member Since: October 28, 2006 Posts: 57 Comments: 30825
221. Drakoen
5:43 PM GMT on July 11, 2007
The MJO should be reaching the central Atlantic tommorrow. May help to clear out some fo that dry air.
Member Since: October 28, 2006 Posts: 57 Comments: 30825
220. Tazmanian
5:43 PM GMT on July 11, 2007
UW-CIMSS Automated Satellite-Based
Advanced Dvorak Technique (ADT)
Version 7.2
Tropical Cyclone Intensity Estimation Algorithm


Current Intensity Analysis




UW - CIMSS
ADVANCED DVORAK TECHNIQUE
ADT-Version 7.2.1
Tropical Cyclone Intensity Algorithm

----- Current Analysis -----
Date : 11 JUL 2007 Time : 170000 UTC
Lat : 19:40:46 N Lon : 129:57:17 E


CI# /Pressure/ Vmax
6.6 / 912.2mb/129.6kt



6hr-Avg T# 3hr-Avg T# Adj T# Raw T#
6.6 6.6 6.9 7.5

Latitude bias adjustment to MSLP : +1.4mb

Estimated radius of max. wind based on IR : 32 km

Center Temp : +13.7C Cloud Region Temp : -80.2C

Scene Type : EYE

Positioning Method : RING/SPIRAL COMBINATION

Ocean Basin : WEST PACIFIC
Dvorak CI > MSLP Conversion Used : PACIFIC

Tno/CI Rules : Constraint Limits : 1.7T/6hr
Weakening Flag : OFF
Rapid Dissipation Flag : OFF
Member Since: Posts: Comments:
219. weathersp
5:41 PM GMT on July 11, 2007
so how is every body doing.

scared to death now Drako put that graphic up.
Member Since: Posts: Comments:
218. tampahurricane
5:41 PM GMT on July 11, 2007
IKE can you give a link
Member Since: May 28, 2007 Posts: 0 Comments: 288
217. Drakoen
5:40 PM GMT on July 11, 2007
Posted By: IKE at 5:40 PM GMT on July 11, 2007.

That map of "potential max winds"...is almost frightening!


Yea it is especially in the Caribbean lol.
Member Since: October 28, 2006 Posts: 57 Comments: 30825
216. tampahurricane
5:39 PM GMT on July 11, 2007
so how is every body doing.
Member Since: May 28, 2007 Posts: 0 Comments: 288
215. Drakoen
5:39 PM GMT on July 11, 2007
Posted By: weathersp at 5:39 PM GMT on July 11, 2007.

Wow good graphic Drako..


Thanks.
Member Since: October 28, 2006 Posts: 57 Comments: 30825
214. IKE
12:39 PM CDT on July 11, 2007
That map of "potential max winds"...is almost frightening!
Member Since: Posts: Comments:
213. weathersp
5:38 PM GMT on July 11, 2007
Wow good graphic Drako..
Member Since: Posts: Comments:
212. Drakoen
5:37 PM GMT on July 11, 2007
Member Since: October 28, 2006 Posts: 57 Comments: 30825
211. weathersp
5:36 PM GMT on July 11, 2007
Eye has significantly shrunk over the last 12 hours...

Link
Member Since: Posts: Comments:
210. tampahurricane
5:35 PM GMT on July 11, 2007
going to collage.
Member Since: May 28, 2007 Posts: 0 Comments: 288
209. Drakoen
5:34 PM GMT on July 11, 2007
Posted By: tampahurricane at 5:31 PM GMT on July 11, 2007.

i am now AMS certified.


really? so you are a MET?
Member Since: October 28, 2006 Posts: 57 Comments: 30825
208. Canesfan68
5:32 PM GMT on July 11, 2007
I'm gettin ready for a cruise that starts Saturday for the western caribbean. We get to HAITI on Monday, the 16th, Jamaica, the 17th, Grand Cayman, the 18th, and Cozumel the 19th. Is there anything headed towards that area, like a tropical wave or any large amounts of moisture that could hamper the trip?
Member Since: Posts: Comments:
207. Drakoen
5:33 PM GMT on July 11, 2007
Posted By: randommichael at 5:30 PM GMT on July 11, 2007.

Drak, are you saying a system already there? Or just IF a system makes it there?


IF a system makes it there lol. There is nothing in the GOM or Caribbean now.
Member Since: October 28, 2006 Posts: 57 Comments: 30825
206. tampahurricane
5:30 PM GMT on July 11, 2007
i am now AMS certified.
Member Since: May 28, 2007 Posts: 0 Comments: 288
205. A4Guy
5:30 PM GMT on July 11, 2007
Uhhhh...why are we posting rather lengthy Georgia weather forecast discussions in a Tropical Weather blog?
Member Since: Posts: Comments:
204. tampahurricane
5:27 PM GMT on July 11, 2007
any storm that enters that area could be a record breaker.
Member Since: May 28, 2007 Posts: 0 Comments: 288
202. RadarRich
5:27 PM GMT on July 11, 2007
and Ike as his assistant for PR purposes
Member Since: Posts: Comments:
201. Drakoen
5:26 PM GMT on July 11, 2007
A system in the northern Carribbean and the Gulf has a good chance of intensfying perhaps rapidly intensfy before heading for land.
Member Since: October 28, 2006 Posts: 57 Comments: 30825
200. RadarRich
5:23 PM GMT on July 11, 2007
IE: been there, done that, referring to: weather analysis, knowledge, and down to earth forcasting, without politics
Member Since: Posts: Comments:
199. Jedkins
5:26 PM GMT on July 11, 2007
000
FXUS62 KFFC 110930
AFDFFC

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
530 AM EDT WED JUL 11 2007

.SHORT TERM /TODAY THROUGH FRIDAY/...
LARGE SCALE PATTERN QUITE UNUSUAL FOR JULY. LARGE BROAD TROUGH
STRETCHES FROM THE NORTHERN PLAINS ACROSS THE MIDWEST AND OHIO
VALLEY INTO NEW ENGLAND. WESTERLIES ON SOUTHERN FRINGE OF TROUGH
HAVE PUSHED ALL THE WAY TO THE GULF COAST. WELL DEFINED SHORT WAVE
TROUGH EVIDENT ON MODEL H5 ANALYSIS AND WV IMAGERY ACROSS CENTRAL
KY/TN AND MS/AL BORDER. H5 WAVE STILL PROGGED BY WRF AND GFS TO
MOVE QUICKLY EAST TODAY REACHING GA BY 18Z AND NC/SC PIEDMONT TO
SOUTH GA BY 00Z. SFC TROUGH ALSO PROGGED TO SLIP INTO NORTH GA
TODAY WITH UNUSUALLY DEEP 1007MB SFC LOW OVER NC BY 00Z.

MORNING PRECIP TRENDS ON RADAR AND SAT SHOW VIGOROUS CONVECTION
OVER NRN MS AND LESS SO ACROSS WESTCENTRAL AL WHERE RICH LOW TO
MID 70S SFC DEWPOINTS FEEDING NORTHWARD INTO STORMS. EXPECT THESE
STORMS TO MAINTAIN OR EVEN INCREASE THROUGH DAYBREAK BEFORE
WEAKENING AND DECREASING IN COVERAGE. HAVE BACKED OFF FROM
LIKELY/CATEGORICAL POPS IN NW GA ZONES TO 50-60 THIS MORNING.
COVERAGE OF TSRA SHOULD INCREASE QUICKLY ACROSS CWA AFTER 16Z...
PERHAPS EARLIER. CAPE PROGGED TO INCREASE TO 1000-2000 J/KG
DEPENDING ON WHICH MODEL BELIEVED. WRF HAS MORE WIDESPREAD
SHRA/TSRA...COOLER TEMPS THUS SUPPRESSING INSTABILITY WHILE GFS
KEEPS HIGHER 1700-2000 J/KG CAPE ACROSS MUCH OF CWA. LOW AND MID
LEVEL VERTICAL WIND SHEAR NOT BAD AT ALL FOR JULY WITH 30KT FLOW
AT H5 AND 35-40KT AT H85/H7. WE MAY ACTUALLY SEE WIND GUSTS AT THE
SFC IN THE WARM SECTOR! :) WITH THESE PARAMETERS...ISOLATED SVR
STORMS SHOULD BE EXPECTED ACROSS MUCH OF CWA. ONLY THING THAT
COULD SAVE US IS IF WE GET A BIG INCREASE IN SHRA IN ADVANCE OF
SHORT WAVE THIS MORNING TO LIMIT INSTABILITY. DAMAGING WIND PRIMARY
THREAT WITH LARGE HAIL ALSO LIKELY. FLOODING SHOULD NOT BE A BIG
THREAT WITH FAST MOVING STORMS...SIMILAR TO YESTERDAY.

BY LATE EVENING...TSRA SHOULD BE MOVING OUT OF THE AREA OR EVEN
SOONER IF MODELS ARE TO BE BELIEVED. SUBSIDENCE BEHIND WAVE SHOULD
SUPPRESS SHRA/TSRA AFTER MIDNIGHT AS WELL AS THURS AND THURS NIGHT.
FAVORED BIAS-ADJUSTED MAV FOR TEMPS EXCEPT AT MCN AND RMG WHERE
MAV STINKS FOR MAX TEMPS.

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
LARGE SCALE TROUGH STILL PROGGED BY WRF/GFS/ECMWF OVER EASTERN
HALF OF CONUS THROUGH THE FIRST PART OF THE WEEKEND. ANOTHER WAVE
PROGGED TO MOVE IN NW FLOW INTO THE LOWER AND MID MS VALLEY EARLY
FRIDAY AND INCREASE SHRA/TSRA ACROSS SE STATES LATE FRI AND SAT.
BY SUN...ATLANTIC RIDGE ALOFT FINALLY PUSHES BACK NORTH AND TAKES
WESTERLIES FAR NORTH AGAIN. SIGH. BACK TO SUMMER. GFS DOES
INDICATE AMPLE MOISTURE IN PLACE WITH WEAK SW FLOW AROUND
PERIPHERY OF ATLANTIC RIDGE. SHOULD EASILY SEE SCT TSRA DURING THE
AFTERNOON AND EVENING THROUGH EARLY NEXT WEEK.

SNELSON

&&

.AVIATION...
LOOKS LIKE THE BIGGEST THREATS TODAY WILL BE THE AFTERNOON SHOWERS
AND THUNDERSTORMS AND GUSTY WINDS. SHOWERS HAVE ALREADY BEGUN MOVING
INTO NW GA AHEAD OF APPROACHING SHORTWAVE. THIS SHORTWAVE IS RATHER
VIGOROUS AND IS EXPECTED TO BRING SCATTERED THUNDERSTORMS WITH SOME
ISOLATED SEVERE STORMS TO THE AREA TODAY. WINDS MAINLY OUT OF THE
WEST TODAY SLOWLY INCREASING INTO THE 15-20KT RANGE WITH HIGHER GUST
BY 18Z. LOW CIGS AND VSBY SHOULD NOT BE AN ISSUE THIS MORNING LIKE
THE PAST FEW DAYS.

.PRELIMINARY POINT TEMPS/POPS...
ATHENS 87 67 94 66 93 / 70 30 10 5 30
ATLANTA 86 69 92 68 91 / 60 20 10 5 30
BLAIRSVILLE 80 60 87 60 85 / 80 20 10 10 30
CARTERSVILLE 85 63 89 61 89 / 60 20 10 10 30
COLUMBUS 89 72 94 70 92 / 60 20 10 5 30
GAINESVILLE 84 67 91 66 88 / 70 20 10 10 30
MACON 91 71 95 69 94 / 60 30 10 10 30
ROME 86 65 92 63 90 / 60 20 10 10 30
PEACHTREE CITY 86 65 92 61 89 / 60 20 10 5 30
VIDALIA 92 73 94 73 94 / 50 30 20 10 40

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

13/01





holy crap the NWS put asmiley face in the discussion! LOL
Member Since: Posts: Comments:
198. ternerito
5:17 PM GMT on July 11, 2007
Can anyone provide a link to a Hi-res temperature map of the Western Pacific?
Member Since: Posts: Comments:
197. weathersp
5:21 PM GMT on July 11, 2007
Wow.. That's amazing Taz
Member Since: Posts: Comments:
196. A4Guy
5:17 PM GMT on July 11, 2007
What do we all make of the extreme TCHP temperatures in the W Carrib? Dr. Masters has commented before about how the temps in the MDR are lower this year than in 2005 (and you can see that in the comparison graphics below) - but Dennis was really the only landfalling storm that formed in the MDR that year...and he didn't really intensify until he hit the W Carib. Katrina, Rita, and Wilma were all "western" storms.
Member Since: Posts: Comments:
195. Drakoen
5:24 PM GMT on July 11, 2007
Member Since: October 28, 2006 Posts: 57 Comments: 30825
194. Drakoen
5:21 PM GMT on July 11, 2007
pressure 915 mb. Should continue to intensify.
Member Since: October 28, 2006 Posts: 57 Comments: 30825
193. RadarRich
5:17 PM GMT on July 11, 2007
I nominate Dr. J for NHC director, he's been there done that and would do better than a guy that actually turned down the job earlier
Member Since: Posts: Comments:
192. Tazmanian
5:20 PM GMT on July 11, 2007
UW-CIMSS Automated Satellite-Based
Advanced Dvorak Technique (ADT)
Version 7.2
Tropical Cyclone Intensity Estimation Algorithm


Current Intensity Analysis




UW - CIMSS
ADVANCED DVORAK TECHNIQUE
ADT-Version 7.2.1
Tropical Cyclone Intensity Algorithm

----- Current Analysis -----
Date : 11 JUL 2007 Time : 160000 UTC
Lat : 19:46:20 N Lon : 130:21:01 E


CI# /Pressure/ Vmax
6.5 / 915.4mb/127.0kt


6hr-Avg T# 3hr-Avg T# Adj T# Raw T#
6.4 6.5 6.8 7.0

Latitude bias adjustment to MSLP : +1.4mb

Estimated radius of max. wind based on IR : 35 km

Center Temp : +12.1C Cloud Region Temp : -76.7C

Scene Type : EYE

Positioning Method : RING/SPIRAL COMBINATION

Ocean Basin : WEST PACIFIC
Dvorak CI > MSLP Conversion Used : PACIFIC

Tno/CI Rules : Constraint Limits : 1.7T/6hr
Weakening Flag : OFF
Rapid Dissipation Flag : OFF


Member Since: Posts: Comments:
191. Drakoen
5:12 PM GMT on July 11, 2007
ON another note.. Man yi continues to intensify and getting heavy convection almost wrapped around the entire eye. You can see the heaviest convection on the Southern eye wall.
Member Since: October 28, 2006 Posts: 57 Comments: 30825
190. MTJax
5:13 PM GMT on July 11, 2007
new Hurricane program
VORTRAC

New hurricane program goes for a spin
It's meant to predict a storm's sudden rise in intensity before landfall.
By Ken Kaye, South Florida Sun-Sentinel
July 9, 2007
Member Since: Posts: Comments:
189. IKE
12:09 PM CDT on July 11, 2007
CMC run has it near PR...then Haiti/DR.
Member Since: Posts: Comments:
188. Drakoen
5:07 PM GMT on July 11, 2007
Member Since: October 28, 2006 Posts: 57 Comments: 30825

Viewing: 238 - 188

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36Blog Index

Top of Page

About

Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

Local Weather

Overcast
29 °F
Overcast

JeffMasters's Recent Photos

Lake Effort Snow Shower Over Windsor, Ontario
Sunset on Dunham Lake
Pictured Rocks Sunset
Sunset on Lake Huron