Talk:Heat burst

This I believe happened in Worcester, Massachusetts in 1998 or 1999, but I do not have the exact date...any verification? —Preceding unsigned comment added by 24.250.211.52 (talk) 18:17, 27 June 2008 (UTC)

FSD, 3 Aug 2008
T02390189 58023 $ KFSD 030927Z 21019G36KT 9SM SQ FEW100 37/08 A2965 RMK AO2 PK WND 22036/0920 $ KFSD 030956Z 15019G33KT 10SM FEW100 23/19 A2965 RMK AO2 PK WND 22036/0920 WSHFT 0930 SLP028 T02330189 $ NATIONAL WEATHER SERVICE SIOUX FALLS SD 920 AM CDT SUN AUG 03 2008
 * http://weather.gladstonefamily.net/site/KFSD
 * KFSD 030856Z 15009G18KT 10SM FEW085 24/19 A2973 RMK AO2 SLP056 OVC ABV 120
 * PRELIMINARY LOCAL STORM REPORT

0426 AM    NON-TSTM WND DMG SIOUX FALLS             43.54N 96.73W 08/03/2008                  MINNEHAHA          SD   NWS EMPLOYEE

WIND DAMAGE RELATED TO HEAT BURST. TREES UP TO 2 TO 3 FEET IN DIAMETER AND MANY LARGE BRANCHES DOWNED IN CENTRAL SIOUX FALLS. PATH APPEARS TO BE FROM 21ST AND PRAIRIE...TO...20TH AND SUMMIT...TO...19TH AND NORTON...TO...18TH AND DULUTH

Physics project
Actually, heat bursts are physics, it's thermodynamics and fluid dynamics applied to the atmosphere. Evolauxia (talk) 00:07, 13 March 2009 (UTC)
 * Having both the met and severe weather tags is considered redundant, since the severe weather project is a descendant project from the met project. We had this conversation within the TC project years ago.  Replaced met tag with physics tag. Thegreatdr (talk) 16:21, 24 April 2009 (UTC)

Occurence in South Dakota on April 14th, 2009
http://minnesota.publicradio.org/collections/special/columns/updraft/archive/2009/08/unusual_heat_burst_hits_pierre.shtml Diddydoobop (talk) 04:33, 18 August 2009 (UTC)

Notable
Are all of those entries in the list really notable? Some are only a few degrees rise with strong winds, which (living in Kansas) I could get with the passage of a warm front. Ks0stm (T•C•G) 22:56, 24 November 2009 (UTC)


 * I've never heard of a warm front causing temperatures to:
 * increase 25 degrees
 * to over 100 F
 * in only a few hours
 * in the middle of the night
 * only very locally, as opposed to mesoscale or large scale.
 * Ufwuct (talk) 18:01, 9 June 2011 (UTC)


 * He was talking about the entries with a few degrees change.1812ahill (talk) 14:05, 29 October 2012 (UTC)

Santa Barbara measurement
There is an incident on the Santa Barbara history page that may be worthy of extreme event inclusion here, but I haven't had access to the reference to confirm whether the abruptness/duration qualifies. In 1859 Santa Barbara California, a coastal town, reached 133 degrees with birds falling dead from the sky. For many years it was the highest recorded U.S. temperature. Although the record was a degree lower than that at Death Valley CA, it is a far more extreme event considering the much lower norms for the coastal location. — Preceding unsigned comment added by 99.65.209.48 (talk) 08:02, 25 February 2014 (UTC)
 * It's the first I've heard of such a record. Do you have a link to where this is stated? I can't find any mention of it on the Santa Barbara Wikipedia page and the discussions I've seen regarding the highest temperature on record for the world/US (such as this) don't mention it it's actually mentioned on this page further down, with the following:


 * 133° (56.1°C) June 17, 1859 Santa Barbara, California, USA
 * SOURCE: The Coast Pilot of California, 1859
 * NOTES: There is no record of who made this measurement or exactly where it was made in Santa Barbara. Some later sources say it was made on a U.S. coastal geo-survey vessel. IF that is the case then the temperature is not possible since the waters off Santa Barbara in June are never warmer than about 70°F and any wind blowing over the ocean would have its temperature modified by the cool water no matter how hot the air.
 * VALIDITY SCORE: 1
 * This report is singular and there is physical evidence (burnt crops and dead animals) that something amazing happened here this day, but the temperature record is impossible to validate.


 * While there are some "extreme" cases in the article, given that the reliably recorded heat bursts haven't exceeded about 40 C, caution in taking the measurements too seriously is advisable. Given the physical evidence reported, it might still be worth noting in the article, with appropriate disclaimers about its reliability. Dendrite1 (talk) 09:14, 25 February 2014 (UTC)

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Wet Air is Less Dense than Dry Air
"the event is thought to occur when rain evaporates (virga) into a parcel of cold, dry air high in the atmosphere, making the air denser than its surroundings." This is confusing. Which air falls rapidly? How high in the atmosphere? It is counterintuitive but, wet air is actually less dense than dry air (28.96 g/mole), since the average molecular weight of air is less when it contains dissolved water (18.0 g/mole), which displaces the heavier mix of N2 and O2 from the molar volume. King of Tea Tree (talk) 22:43, 16 July 2023 (UTC)