Debby dumps 20 inches of rain; 105° in Denver: hottest day on record

By: Dr. Jeff Masters , 11:52 AM GMT on June 26, 2012

Share this Blog
34
+

Florida, the Sunshine State, continues to be the thoroughly sodden state, thanks to torrential rains from slow-moving Tropical Storm Debby. On Monday, Debby spawned an area of intense thunderstorms that blew up over the Florida Panhandle, just east of Apalachicola. A weather station in Wakulia County, 4 miles east of Saint Marks, Florida, recorded 12.99" on rain in just 12 hours, bringing the 48-hour rainfall total at the site to 20.96". Several other stations in Wakulia Country also recorded rainfall amounts in excess of 20 inches, and the heavy rains caused moderate to major flooding on area rivers. Debby did not spawn any tornadoes on Monday, thankfully.


Figure 1. Radar-estimated rainfall from Tropical Storm Debby shows an area of extreme rainfall in excess of 15 inches has affected the Florida Panhandle.

Dry air and high wind shear continue to disrupt Debby. Our Wundermap for the surrounding ocean areas shows that winds at almost all buoys and coastal stations along the Gulf Coast were below 25 mph at 7 am EDT. Visible satellite loops show Debby has virtually no heavy thunderstorms near its center of circulation, which will severely limit its potential for intensification. The heavy thunderstorms of Debby are mostly on the east and north sides. Upper-level winds out of the west creating a high 20 - 25 knots of wind shear that continues to drive dry air into Debby's core. This dry air can be seen on Water vapor satellite loops. Ocean temperatures are about 27.5°C (81°F) in the Northern Gulf of Mexico, which is about 1°F above average, but these waters do not extend to great depth, which will limit how strong Debby can get.


Figure 2. True-color visible Terra satellite image of Debby taken at 12:30 pm EDT Monday June 25, 2012. At the time, Debby had top winds of 45mph. Note the heavy thunderstorms on the north side of the center, which were dumping extremely heavy rains over the Florida Panhandle that caused major flooding on area rivers. Image credit: NASA.

Forecast for Debby
Debby's slow motion will make rainfall the primary threat from the storm, though tornadoes will continue to be a threat over the next few days. NOAA's Storm Prediction Center has placed most of Florida in its "Slight Risk" area for severe weather today. The slow motion of Debby will inhibit intensification of the storm by stirring up cooler waters from the depths to the surface. Debby's close proximity to land places a portion of its circulation over land, which will also tend to slow down intensification. Wind shear is expected to remain in the high range through Wednesday, and given the storm's other problems, significant intensification before landfall on Florida's Gulf Coast is unlikely.

Denver's 105°: hottest temperature in city history
The mercury soared to 105° in Denver, Colorado on Monday, tying the record for the hottest temperature ever measured in the city. The city also hit 105° on July 20, 2005 and August 8, 1878. Yesterday's 105° reading was the city's fourth consecutive day in the triple digit heat. The city's record streak of 100°+ days is five, set in 1989 and again in 2005. Denver's forecast today calls for highs of 100 - 104°, so the city will likely tie its all-time mark for consecutive 100°+ days.

In many respects, the extreme heat that has scorched Colorado since Saturday is the state's most intense heat wave in recorded history. According to wunderground's weather historian Christopher C. Burt, Saturday's 114° reading in Las Animas tied for the hottest temperature ever measured in the state of Colorado. Two other 114° readings have occurred in Colorado history: in Las Animas on July 1, 1933, and in Sedgwick on July 11, 1954. Colorado Springs tied its all-time record for warmest temperature ever measured on both Saturday and Sunday, with readings of 100°. The record heat in Colorado has exacerbated numerous destructive wildfires, and the Governor reported over the weekend that half of the nation's firefighting fleet has been deployed to Colorado. On Sunday, a wildfire that grew to more than 3 square miles near Colorado Springs drove 11,000 residents (2% of the city's population) out of their homes. In Fort Collins, the mercury hit 102° on Sunday, just 1° below the city's all-time hottest temperature of 103° set on Jul 21, 2005. The heat did no favors for firefighters struggling to the contain the massive 81,000 acre High Park fire fifteen miles northwest of Fort Collins. The fire is the second largest and most destructive wildfire in Colorado's history, and is 45% contained. La Junta, CO hit 110° on Sunday, tying its all-time hottest temperature record, set on June 28, 1990. Today is the last day of exceptional heat for Colorado, as the ridge of high pressure responsible slides to the east, bringing record-breaking heat to the Midwest instead.

Jeff Masters

One of Debbie's tornados (whgator3)
Tornado crossing Lk. Winterset in Winter Haven, Fl 6/24 8pm
One of Debbie's tornados
TS Debbie on Bayshore (robb04047)
Waves crashing on Bayshore Blvd.
TS Debbie on Bayshore

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: 150 - 100

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16Blog Index

Quoting kwgirl:
Between floods and fire closing Major trucking routes and the drought in the plains, we are facing higher prices in goods, especially food!
yes im afraid your right there
Member Since: August 6, 2011 Posts: 4 Comments: 33365
Quoting RTSplayer:


Dry eye...lol...

Death of a TS...maybe...


I tell ya what though. For a convectively challenged cyclone the structure has become better defined today. Winds have picked up quite a bit on the east coast this morning.
Member Since: Posts: Comments:
News that doesn't make the news...

5th quake in Texas since Saturday

The series of quakes began with a magnitude 2.1 quake near Keene, about 25 miles south of Fort Worth, just before 1 a.m. on Saturday.

A 3.4 magnitude quake shook Tilden in South Texas at 3:55 a.m. Sunday. Tilden is about 40 miles west of Beeville and south of San Antonio.

reports of windows broken and items being knocked over

Member Since: Posts: Comments:
Looks like the models are trending farther from shore now, so looks like NC is safe
Member Since: February 11, 2012 Posts: 0 Comments: 9452
Member Since: August 6, 2011 Posts: 4 Comments: 33365
Quoting CaicosRetiredSailor:
Tropical storm Debby: Flooding forces I-10 closure in Florida

The Florida Highway Patrol closed portions of Interstate 10 (I-10) in north Florida early Tuesday due to flooding caused by tropical storm Debby. Troopers reported several areas of flooding on a roughly 50-mile stretch of the east-west interstate east of where it crosses I-75.


By Brendon Farrington and Tamara Lush, Associated Press / June 26, 2012
Between floods and fire closing Major trucking routes and the drought in the plains, we are facing higher prices in goods, especially food!
Member Since: Posts: Comments:
Quoting LightningCharmer:
It has broken a record, the earliest "D" storm. That's the only one with which I'm aware.
Fair enough. I would have to research into local daily rainfall records at all the affected NWS sites to verify if that is true or not.
Note that I did not claim other records were broken, I was just responding to the previous poster's words.
Member Since: Posts: Comments:
Quoting cheaterwon:


Pulls hair out and bangs head on desk. My wife is going to leave me if the season stays like this.
Ok, I'm curious. Why is the livelihood of your marriage predicated on atmospheric phenomena?
Member Since: Posts: Comments:
Link
Quoting tea3781:


Can you send me a link to your radar?
Member Since: Posts: Comments:
Looks like we get to break some record highs again today. Forecast is 4 to 6 above the previous record...again.

And tomorrow, and the next two days, and a tie on the third day after tomorrow.

Wow. We're just trying to move that 12 consecutive hottest months record forward by another month...goodness.
Member Since: Posts: Comments:
THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS IN...
NORTHERN NASSAU COUNTY IN NORTHEAST FLORIDA...
THIS INCLUDES THE CITIES OF...HILLIARD...FERNANDINA BEACH...
CAMDEN COUNTY IN SOUTHEAST GEORGIA...
THIS INCLUDES THE CITIES OF...WOODBINE...ST. MARYS...KINGSLAND...
KINGS BAY BASE...HIGH POINT...DUNGENESS...
GLYNN COUNTY IN SOUTHEAST GEORGIA...
THIS INCLUDES THE CITIES OF...ST. SIMONS...JEKYLL ISLAND...DOCK
JUNCTION...COUNTRY CLUB ESTATES...BRUNSWICK...

* UNTIL 300 PM EDT

* AT 905 AM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
RAINFALL ASSOCIATED WITH TROPICAL STORM DEBBY RAINBANDS OVER MUCH OF
COASTAL SOUTHEAST GEORGIA AND NASSAU COUNTY ALONG THE I-95 CORRIDOR.
STORM TOTAL RAINFALL AMOUNTS OF 8 TO 16 INCHES HAVE BEEN REPORTED
AND AN ADDITIONAL 3 TO 6 INCHES OF RAINFALL CAN BE EXPECTED TODAY.
SEVERAL ROAD CLOSURES HAVE BEEN REPORTED AND MANY OTHER SECONDARY
ROADWAYS ARE IMPASSABLE AND ANY ADDITIONAL RAINFALL WILL WORSEN THE
SITUATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS...STREETS AND UNDERPASSES.
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF
CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. MAKE THE
SMART CHOICE...TURN AROUND...DONT DROWN. FLOOD WATERS MAY TAKE DAYS
TO RECEDE.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION
STATIONS...OR CABLE TELEVISION FOR ANY UPDATES. FOR ADDITIONAL
INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN JACKSONVILLE
WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX.

&&
Member Since: August 6, 2011 Posts: 4 Comments: 33365
Quoting guygee:
Depends on what record is being broken. Wind? Surge? Yeah I would be surprised. Rain? Not necessarily surprised. I get drenched by low-topped convergent bands coming in from the ocean and those usually do not show well on the water vapor satellite image.
It has broken a record, the earliest "D" storm. That's the only one with which I'm aware.
Member Since: Posts: Comments:
I was also thinking about Levis long term forecast from a week and a half ago. He actually did a really good job of nailing what Debby was going to do. He said that Debby would come in to the northern gulf stall out and create an Allison type situation over the northern gulf. He did say the North west gulf but still that is pretty dang good to call for a stall like that before the models did or any of the pros. And before it was even a storm. To have that for sight in that kind of long range shows you that some people truly are genius and others like my self are dumb as a box of rocks that doesn't even float.
Member Since: Posts: Comments:
Debby will probably peak once she reaches the Atlantic, until the... Little Debby is gonna be a PAIN for Florida.
Ernesto is forcasted and Hinted by some of the models as forming from a Tropical Wave out in the Open Atlantic...Within the next 10 days.
Member Since: Posts: Comments:
135. yoboi
Quoting Stoopid1:
Hmm wow, the coc is a good bit farther south, looks like 28.6° N. This has been one interesting tropical storm.



looks like it moved SW
Member Since: August 25, 2010 Posts: 6 Comments: 1989
Some lessons to be learned....Gulf storms can be unpredictable in terms of intensity and/or track...A rain saturated tropical storm can cause more damage than a faster moving Cat 1....A slow meandering lingering system can be catastrophic in terms of flooding, storm surge damage and coastal beach erosion.

When all is assessed and tallied over the coming days, Debby has been a very expensive storm for Florida and it is only June.
Member Since: Posts: Comments:
Hmm wow, the coc is a good bit farther south, looks like 28.6° N. This has been one interesting tropical storm.
Member Since: Posts: Comments:
132. yoboi
Quoting Tazmanian:



this is how stormW got ban by posting link too his own site

rule 10 Do not post links to your own site unless they are directly relevant and even then, use sparingly.



what's rule 12?
Member Since: August 25, 2010 Posts: 6 Comments: 1989
Quoting SFLWeatherman:
doing good now


Can you send me a link to your radar?
Member Since: Posts: Comments:
Quoting ProgressivePulse:
Is that an "EYE"

:-D





Dry eye...lol...

Death of a TS...maybe...
Member Since: Posts: Comments:
..sun is out here and that means daytime heating and lift..very windy here, lots of tree branches blowing off the tree's, but local mets say when debby comes ashore tonight or tomorrow morning, we could get here..another 4-8 inches of rain..still not over for us in central florida
Member Since: August 6, 2011 Posts: 4 Comments: 33365
Since a few folks are talking about the central Atlantic, thought it'd be a good time to show this graphic. You can see the smallish feature they're talking about roughly midway between Africa and South America. More importantly, however, you can see a few tropical waves slowly moving westward across Africa, along with one very telling sign: those wispy tendrils of cirrus reaching into the Horn of Africa from the Indian Ocean. They only exist at this time of year, wnd when they stop, the wave train stops. I'm not claiming it's started; I'm just mentioning that the stage is being set right on schedule.

IOW: it won't be long now.

Click for full-size image:

Africa
Member Since: Posts: Comments:
Quoting DocBen:
Might Debbie re-form in the Atlantic? Perhaps even fulfill her destiny to become a hurricane?
I think its quite possible. The waters in the Atlantic were very warm last time I looked. Perfect for Debbie to strengthen back up again.
Member Since: Posts: Comments:
Quoting Neapolitan:
Just a friendly reminder:

hurricane


thanks for the reminder, but what was i reminded about?
could you remind me?
Member Since: February 11, 2012 Posts: 0 Comments: 9452
Is that an "EYE"

:-D



Member Since: Posts: Comments:
Quoting Neapolitan:
Just a friendly reminder:

hurricane


Pulls hair out and bangs head on desk. My wife is going to leave me if the season stays like this.
Member Since: Posts: Comments:
Might Debbie re-form in the Atlantic? Perhaps even fulfill her destiny to become a hurricane?
Member Since: Posts: Comments:
Quoting GeorgiaStormz:


no models develop it

Model development is always needed for an actual TC to form. Perfect example would be Chris from last week. The Models had that forming for a long time before it actually did. lol
Member Since: Posts: Comments:
Quoting RTSplayer:


Low and mid level steering doesn't look favorable in terms of track.


Steering will push it into the S. American continent, unless the storm really strenghtens in the next day or two to get some northern pull in motion.



Actually, the low ones usually have the most promise since they are protected from the shear to the north. I understand that you are saying it might have an issue with South America but I think it has a chance to pull up a few degrees before that happens. All I know is that it's one of the best spins I've seen that far out in the central Atlantic so far this season. We shall see what she does.
Member Since: Posts: Comments:
Just a friendly reminder:

hurricane
Member Since: Posts: Comments:
Quoting ncstorm:


It looks like a wave with some modest spin is showing good on the latest vorticity map. Shear is kinda favorable about <15 knots. Its just something to take your mind off Debby.
Member Since: Posts: Comments:
Quoting cheaterwon:
If I told you that there was a record breaking TS spinning in the NE Gulf and then showed you this pic. you would laugh at me.
Depends on what record is being broken. Wind? Surge? Yeah I would be surprised. Rain? Not necessarily surprised. I often get drenched by low-topped convergent bands coming in from the ocean and those usually do not show well on the water vapor satellite image.
Member Since: Posts: Comments:
Tropical storm Debby: Flooding forces I-10 closure in Florida

The Florida Highway Patrol closed portions of Interstate 10 (I-10) in north Florida early Tuesday due to flooding caused by tropical storm Debby. Troopers reported several areas of flooding on a roughly 50-mile stretch of the east-west interstate east of where it crosses I-75.


By Brendon Farrington and Tamara Lush, Associated Press / June 26, 2012
Member Since: Posts: Comments:
Bands of showers.
Member Since: Posts: Comments:
Also that front might be shearing her cloud top to the east giving the impression of her moving to the east faster than she is but that front doesn't really have a hold of her circulation. She is still stationary with a slight south east drift IMO. Watch this loop when the sun comes up on her and watch the western part of her circulation not the east side (try covering the convection being blown off to the east with a piece of paper).
Link
Member Since: Posts: Comments:
IMO, Debby is really close to the line dividing a TS from an STS. I am amazed how she continues to (somehow) hold it together with the shear and dry air. That said, her LLC looks to be a little elongated, from the SSW to NNE.
Member Since: August 3, 2008 Posts: 16 Comments: 5792
Quoting kwgirl:
Good morning all. Even though the keys have had little rain from Debby in the past three days, the winds are kicking up the surf at high tide. Hence the south side of Key West is getting washed over by sea and seaweed. But the sun has come out finally. I think we have had about three weeks of cloudy weather because of Debby developing. Maybe I will finally get to water aerobics today. Hope the sun warms the pool!
All that warm moist south wind blowing past you seems to be what is feeding Debbie. 'Breakfast if you will.
Member Since: Posts: Comments:
Quoting cheaterwon:
If I told you that there was a record breaking TS spinning in the NE Gulf and then showed you this pic. you would laugh at me.
Yah thats wierd. Any one know why it is like that?
Member Since: Posts: Comments:
Good morning all. Even though the keys have had little rain from Debby in the past three days, the winds are kicking up the surf at high tide. Hence the south side of Key West is getting washed over by sea and seaweed. But the sun has come out finally. I think we have had about three weeks of cloudy weather because of Debby developing. Maybe I will finally get to water aerobics today. Hope the sun warms the pool!
Member Since: Posts: Comments:
Quoting cheaterwon:
If I told you that there was a record breaking TS spinning in the NE Gulf and then showed you this pic. you would laugh at me.
It's a low level storm that just won't give-up. Water vapor imagery does not show low levels very well if at all. It is startling though that it is completely invisible on this image.
Member Since: Posts: Comments:
Quoting GeorgiaStormz:


no models develop it
they.hinted
Member Since: September 11, 2010 Posts: 0 Comments: 4018
If I told you that there was a record breaking TS spinning in the NE Gulf and then showed you this pic. you would laugh at me.
Member Since: Posts: Comments:
107. 7544
morning all i see she moved a little more sse overnight still trying to go east looks like she will move slowly across north fla as the tail end could still give se fla some xtra bands caling for 3 to 5 inches till friday but debbie has done so much wouldnt be surpise to see her strengthnen over land close to jax with another southward drift imo its not over yet
Member Since: Posts: Comments:
IMO the rain bands have never looked better on the radar. Very distinctive....and multiple on her south and east side....

Does she have another trick up her sleeve? That i believe is a valid question at this point
Member Since: Posts: Comments:
Quoting Stoopid1:
Large COC makes it kinda hard, but Debby appears to be moving just S of due E. Probably a temporary movement before a due E track starts.


It's net movement was 0.4S and 0.5E since 4pm central yesterday. 0.1S 0.1E since 1am central this morning.


Member Since: Posts: Comments:
Member Since: Posts: Comments:
Quoting trunkmonkey:


Suns out, nope, it's raining again, suns out, no heavy rain lots O wind! T- storm warning, just the way the weather is here in South Fla! These days.
Isnt that the truth. We have had rain off and on all week here outside Plant City, Fl. But thats what you get when you live here.
Member Since: Posts: Comments:
my in-laws cancelled their Florida trip for this week and rescheduled for July 6-11.

Here's to hoping they can finally enjoy their vacation that week.
Member Since: Posts: Comments:
Quoting dartboardmodel:
Looks like we have a new player in the central Atlantic. That little blob has a nice spin to it, it even has convection near its COC. And no shear to boot! It would be just too funny to get storm #5 before July 1st. What a record that would be!


Low and mid level steering doesn't look favorable in terms of track.


Steering will push it into the S. American continent, unless the storm really strenghtens in the next day or two to get some northern pull in motion.
Member Since: Posts: Comments:
Quoting stillwaiting:
i don't care either way,but levi post links to his site almost daily,a highly respected blogger,but rules should be the same for all,imo no big deal....winds here locally on siesta key are slowly lowering.
Levi's blog is on Wunderground.
Member Since: Posts: Comments:

Viewing: 150 - 100

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16Blog Index

Top of Page

About JeffMasters

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