Wednesday, February 13, 2008
More Severe Weather Coming?
Yesterday's storms were bad enough. It now looks like we'll see another round of bad storms late on Saturday or early on Sunday. This will come courtesy of another powerful disturbance diving over the western Rockies tonight. It will dump 1-2 feet over Aspen & Vail tomorrow & Friday before heading our way for the weekend. Ahead of it we'll see a big warm up, back into the 70s, but much colder air will follow for Monday & Tuesday. In fact, next week's chill may be colder than tonight's with freezing temps even on the Southshore. The next 6-8 weeks is our severe weather time as old Man Winter tries to hang on and warmer Spring time temperatures try to return northward. I'll try to give you several days notice regarding any severe weather threat.
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8 comments:
I've heard hurricanes can induce labor. Can thunderstorms do the same? My wife's in her ninth month and the doctor said "any time now" and so I'm wondering.
I don't want to sound like an expert, but to the comment above, I think it's more the stress of "Oh, no, it's a hurricane" causing the labor than the actual storm itself.
I'm thinking maybe it has to do with the drop in air pressue during a hurricane.
I agree...I've always heard doctors say it was the drop in air pressure that triggered women to go into labor early.
Wait? You don't believe in global warming caused by man yet you believe hurricanes cause a women to go into labor?
Caveman, Don't be so dismissive. There is some scientific evidence for this idea. I'm pasting below abstracts from two relevant studies.
Title
Association between significant decrease in barometric pressure and onset of labor.
Author
King EA; Fleschler RG; Cohen SM
Address
St. Luke’s Episcopal Hospital, Houston, TX 77030, USA.
Source
J Nurse Midwifery, 1997 Jan-Feb, 42:1, 32-4
Abstract
To determine whether there is any correlation between sudden decrease in barometric pressure and onset of labor, a non-experimental, retrospective study at a 948-bed tertiary care hospital was done. Pregnant patients of 36 weeks gestation or more who presented with spontaneous onset of labor during the 48 hours surrounding the 12 occurrences of significant drop in barometric pressure in 1992 were included in the study. Significantly more occurrences of onset of labor were identified in the 24 hours after a drop in barometric pressure than were identified in the 24 hours prior to the drop in barometric pressure (P < 0.05). Therefore, the overall number of labor onsets increased in the 24 hours following a significant drop in barometric pressure.
Title
The effect of changes in atmospheric pressure on the occurrence of the spontaneous onset of labor in term pregnancies.
Author
Noller KL; Resseguie LJ; Voss V
Address
Department of Obstetrics and Gynecology, University of Massachusetts Medical School, Worchester, USA.
Source
Am J Obstet Gynecol, 1996 Apr, 174:4, 1192-7; discussion 1197-9
Abstract
OBJECTIVE: Our purpose was to determine whether there is a relationship between changes in atmospheric pressure and spontaneous onset of labor in term pregnancy. STUDY DESIGN: All women admitted to Medical Center of Central Massachusetts-Memorial Hospital with spontaneous onset of labor at term and who were delivered on the service during a 12-month period represent the cohort for this study. Each maternal chart was abstracted to ensure that each member of the cohort met the inclusion criteria. Hourly recordings of atmospheric pressure made at the Worcester Station of the National Weather Service, Department of Commerce, were used as the meteorologic data points of interest. Least-squares regression was used to determine an equation that expresses the probability of the onset of labor in this cohort as a function of gestational age, which was used to calculate expected numbers for the statistical analyses. Two relationships were studied: (1) the ratio of the observed to the expected number of onsets of labor and (2) the initiation of labor and atmospheric pressure changes in the preceding 3 hours. RESULTS: Three-hour periods of falling atmospheric pressure were less often followed by initiation of labor than were the periods with other types of pressure sequences. No association was observed between the onset of labor and days of low mean pressure. CONCLUSION: Although there was an observed statistically significant association between falling barometric pressure and onset of labor, the magnitude of the difference is not of clinical significance.
Not even near enough room to copy and paste all the scientific data proving global warming and changing climate as a result...
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