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

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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

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200. LBAR
Low pressure developing off of Charleston? Check out the turning on the radar.

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Quoting guygee:
Some other records broken by 2012 TS Debby so far:
=-=-=-=-=-=-=
RECORD EVENT REPORT
NATIONAL WEATHER SERVICE TAMPA BAY FL
503 AM EDT MON JUN 25 2012


...RECORD DAILY MAXIMUM RAINFALL SET AT TAMPA...

A RECORD RAINFALL OF 7.11 INCH(ES) WAS SET AT TAMPA YESTERDAY.
THIS BREAKS THE OLD RECORD OF 5.29 SET IN 1995.
=-=-=-=-=-=-=
RECORD EVENT REPORT
NATIONAL WEATHER SERVICE TAMPA BAY FL
541 PM EDT SUN JUN 24 2012


...RECORD DAILY MAXIMUM RAINFALL SET AT TAMPA...

A RECORD RAINFALL OF 6.3 INCHES WAS SET AT TAMPA TODAY.
THIS BREAKS THE OLD RECORD OF 5.29 SET IN 1995.
=-=-=-=-=-=-=
RECORD EVENT REPORT...UPDATED PENSACOLA RAINFALL.
NATIONAL WEATHER SERVICE MOBILE AL
940 PM CDT SAT JUN 09 2012

...RECORD DAILY MAXIMUM RAINFALL SET AT MOBILE...

A RECORD RAINFALL OF 5.79 INCH(ES) WAS SET AT MOBILE TODAY.
THIS BREAKS THE OLD RECORD OF 1.39 SET IN 1968.

...RECORD DAILY MAXIMUM RAINFALL SET AT PENSACOLA...

A RECORD RAINFALL OF 13.13 INCH(ES) WAS SET AT PENSACOLA TODAY.
THIS BREAKS THE OLD RECORD OF 1.95 SET IN 1913.

ALSO OF NOTE...THE 13.13 INCH RAINFALL SO FAR TODAY IS THE 2ND
HIGHEST ALL TIME ONE DAY RAINFALL ON RECORD. HIGHEST RECORDED DAILY
RAINFALL IS 15.29 INCHES ON OCTOBER 5, 1934.
=-=-=-=-=-=-=
You get the idea...


Hate to tell ya buddy but we got zero rain from Debby..(Pensacola)
Just overcast and windy days...
Otherwise nada..
NWS needs to look at that..
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Quoting cheaterwon:
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.


He didn't do any worse than the NHC anyway. Both skrood the pooch on the track call to Texas. Too much faith in the EURO model showed to be a bad bet... kinda like their currency. lol
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BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1023 AM EDT TUE JUN 26 2012

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* TORNADO WARNING FOR...
EASTERN HIGHLANDS COUNTY IN FLORIDA.

* UNTIL 1100 AM EDT

* AT 1024 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO OVER EASTERN HIGHLANDS COUNTY...OR 10 MILES SOUTH OF
BASINGER...MOVING NORTHEAST AT 45 MPH.

* THE TORNADO WILL BE NEAR...
RURAL EASTERN HIGHLANDS COUNTY.
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Quoting Kristina40:


Nice, we're only on the 4th day of getting pounded by Debby. Glad they could get around to doing that :D


Don't be too quick to judge :)

A cumulative effect from water can take a few.
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194. wxmod
Huge Russia fires, right, and melting arctic ice, left. MODIS arctic mosaic today.

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Quoting LightningCharmer:
It has broken a record, the earliest "D" storm. That's the only one with which I'm aware.
Some other records broken by 2012 TS Debby so far:
=-=-=-=-=-=-=
RECORD EVENT REPORT
NATIONAL WEATHER SERVICE TAMPA BAY FL
503 AM EDT MON JUN 25 2012


...RECORD DAILY MAXIMUM RAINFALL SET AT TAMPA...

A RECORD RAINFALL OF 7.11 INCH(ES) WAS SET AT TAMPA YESTERDAY.
THIS BREAKS THE OLD RECORD OF 5.29 SET IN 1995.
=-=-=-=-=-=-=
RECORD EVENT REPORT
NATIONAL WEATHER SERVICE TAMPA BAY FL
541 PM EDT SUN JUN 24 2012


...RECORD DAILY MAXIMUM RAINFALL SET AT TAMPA...

A RECORD RAINFALL OF 6.3 INCHES WAS SET AT TAMPA TODAY.
THIS BREAKS THE OLD RECORD OF 5.29 SET IN 1995.
=-=-=-=-=-=-=
You get the idea...
(edited to remove non-Debby record report)
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Have you ever had an unwelcome visitor who just wouldn't leave? Here's the Wunderground forecast for Ocala, FL (though nearly any location in the area will look similar):

Debby
Quoting jaxbeachbadger:
Cool Wind graphic. Please feel free to help me and post the actual graphic on here--I haven't been able to figure out how.
The animation is Flash-based, so it can't easily be duplicated here. However, a still frame is easy, and cool:

wind
Member Since: November 8, 2009 Posts: 4 Comments: 13505
Quoting theshepherd:


Grab a tarp and hang in there.
Maybe FEMA will come to your aid.

Just got off the phone with the Fla Div of Emergency Management.

They have drafted a request for a State of Emergency.
It's sitting on the Gov's desk awaiting signature.



Nice, we're only on the 4th day of getting pounded by Debby. Glad they could get around to doing that :D
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190. 7544
Quoting gordydunnot:
The pressure gradient between the high to the north of Debby and the one to her se is what causing all the wind in S. Fl.. Debby is caught in a vise.


agree and add the rains that should be coming to se fla latter on today till friday they saying 3 to 5 more inches it could look like a ts is hitting the area especialy if she gets any further south imo i believe she will as she crosees over stay tuned
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Quoting LargoFl:
whoa BIG tree branch just came down on my roof..later folks


Grab a tarp and hang in there.
Maybe FEMA will come to your aid.

Just got off the phone with the Fla Div of Emergency Management.

They have drafted a request for a State of Emergency.
It's sitting on the Gov's desk awaiting signature.

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Quoting Angetotti:
No confiaré en los modelos, han estado fallando demasiado. Debby no debe ser ni depresión tropical ¿como puede tener 45 mph de vientos sostenidos?


Air Force recon muestra 45 mph aún, todavía una depresión tropical. Perdonar mi español.

Morning everyone. Another day with 100 degrees or more, too hot.
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central atlantic disturbance could be our next invest if vortiicity and convection continue to increase
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Quoting BrickellBreeze:


I think you were right yesterday, when you said Debby may come in just north of Tampa.

I went to sleep, expecting a better storm in the A.M., it still looks horrible...



Looks like the high is retreating a bit, I don't think she'll come anymore south than where she is currently.
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wow photos
Quoting LargoFl:
whoa BIG tree branch just came down on my roof..later folks
Member Since: May 23, 2012 Posts: 0 Comments: 4447
Quoting LargoFl:
whoa BIG tree branch just came down on my roof..later folks
Please check the power lines before going outside! Falling tree limbs can down those as well.
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whoa BIG tree branch just came down on my roof..later folks
Member Since: August 6, 2011 Posts: 4 Comments: 37821
area of disturbed weather in the central atlantic. although a little low in latitude ,this distrbance is embedded in the monsoon trough. the area has good 850mb vorticity and is in a low shear environment.some of the models are hinting of a weal disturbance east of the winwards ,come saturday. although there is a large area of dry air to the north of the disturbance it should be able to fight off the dry air as it is engulfed in a wide moisture field. all in all an interesting area to watch and track.
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..gfs rainfall in 60 hours
Member Since: August 6, 2011 Posts: 4 Comments: 37821
Quoting ProgressivePulse:


Sun is out more today so it will act to destabilize the atmosphere more than past days. Combo of natural cycles and flow from Debby should kick up some rain the rest of the week.


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Quoting BrickellBreeze:


I think you were right yesterday, when you said Debby may come in just north of Tampa.

I went to sleep, expecting a better storm in the A.M., it still looks horrible...

maybe thats why local met said possibility of 4-8 inches of rain possible and bad conditions tomorrow, it may head closer to tampa when coming ashore..we shall see huh..dont want another 4-8 inches here..we have had our fill ty lol
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Quote #128 Neapolitan:

I've never noticed those clouds from the Indian ocean before..thanks for the info Neo..
Looks like the African continent is ripe indeed..
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Cool Wind graphic. Please feel free to help me and post the actual graphic on here--I haven't been able to figure out how.

Link
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Quoting gatorchomp:
Is FL going to get anymore heavy rain like we've seen the past two days?



Sun is out more today so it will act to destabilize the atmosphere more than past days. Combo of natural cycles and flow from Debby should kick up some rain the rest of the week.
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It up to 994mb or 995mb now
Quoting RTSplayer:


Pressure is 991mb and wind is 45mph still...
Member Since: May 23, 2012 Posts: 0 Comments: 4447
The pressure gradient between the high to the north of Debby and the one to her se is what causing all the wind in S. Fl.. Debby is caught in a vise.
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If nothing else she won't give up good morning all
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Quoting ProgressivePulse:
Southward drift can be attributed to the fact that the CONUS high has built in, just a bit, over top of her.



I think you were right yesterday, when you said Debby may come in just north of Tampa.

I went to sleep, expecting a better storm in the A.M., it still looks horrible...

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Yall do know there is a bird in the air, right?

Product: Air Force High Density (HDOB) Message (URNT15 KNHC)
Transmitted: 26th day of the month at 13:58Z
Date: June 26, 2012
Aircraft: Air Force Aircraft (Last 3 digits of the tail number are 306)
Storm Number: 04
Storm Name: Debby (flight in the North Atlantic basin)
Mission Number: 6
Observation Number: 22
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When my electricity was out yesterday and I was using my phone another blogger, I apologize I can't remember who, told me about this report on storm damage in Madeira Beach. The condo is right around the corner from me. Of course the beach is only about 3 miles long and a mile wide with over 60% being water so everything is close by. Thank you to the blogger for bringing this to my attention.Link
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Quoting gatorchomp:
Is FL going to get anymore heavy rain like we've seen the past two days?

Member Since: May 23, 2012 Posts: 0 Comments: 4447
Quoting gatorchomp:
Why is this even a TS storm anymore?



Pressure is 991mb and wind is 45mph still...
Member Since: January 25, 2012 Posts: 33 Comments: 1520
......................those folks in GA,SC,NC, nws still has debby as a TS in the atlantic when she gets there, you folks are still in the warning cone, this has a chance, of riding up the coast, yes offshore maybe, but look at her size, she is way way way north of me and she is still whacking us way down here,she affects many many miles away from her center...be prepared ok,stay safe
Member Since: August 6, 2011 Posts: 4 Comments: 37821
Ok, to all those who say that this blob could develop, it meanders around 1013mb for a while and then hits S American in 144 hrs as you can see here on this map where it is directly N of Venezuela
So marginal you cant even really see it :)



A pattern like this is conducive to Deans and Felixes it seems
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This is by far the ugliest TS I've seen, at least in a long time. Almost qualifies as a STS, and even then it would still be ugly.
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163. yoboi
Quoting MaryMichell46:


Don't keep posting rule 10 year after year.


lol ya hear that TAZ????????
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Quoting guygee:
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.
Not implying that you did; just only aware of one record for this storm, although it has caused fatalities which sadly adds it to the list of deadly storms.

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No confiaré en los modelos, han estado fallando demasiado. Debby no debe ser ni depresión tropical ¿como puede tener 45 mph de vientos sostenidos?
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Southward drift can be attributed to the fact that the CONUS high has built in, just a bit, over top of her.

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159. yoboi
Quoting RitaEvac:
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




due to fracking.....
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Quoting gatorchomp:
Why is this even a TS storm anymore?

winds there are still over 45 mph
Member Since: August 6, 2011 Posts: 4 Comments: 37821
...........................................simply amazing debby is, she is still in the gulf and she is whacking southern georgia on the atlantic side..wow
Member Since: August 6, 2011 Posts: 4 Comments: 37821
But I do believe she has become completely decoupled. Could be why she looks more symmetrical, no tug from the upper levels.
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Re #125 -- thanks for that pic, PP! I'm astonished at how resilient this storm has been in the face of so much dry air. (Although, on the south side of it here in CC/FM, I can tell you the air's been hot and saturated for days now.)

I am also amazed at how Debby's managed to pull herself off the northern beaches and slip back down our way. With her large size she has plenty of access to Atlantic Gulf Stream moisture, in addition to the feed crossing us from the Southern Gulf, so I don't expect Debby to unravel unless the shear increases.

Amazing ....
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Quoting GeorgiaStormz:
Looks like the models are trending farther from shore now, so looks like NC is safe
just note, debby doesnt listen to the models, since it began it never did
Member Since: August 6, 2011 Posts: 4 Comments: 37821
Member Since: August 6, 2011 Posts: 4 Comments: 37821
very windy here in dade
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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: 37821

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

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