| Background Information for this page | ||||||
| Return to radar list for Middletown RI | ||||||
| Weather data for Middletown RI. Forecast values begin August 3, 2008 | ||||||
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Weather-based RELATIVE daily fireblight blossom infection risk values
below are according to criteria of the Cougarblight model developed in
Washington state by Dr. Timothy J. Smith.
ABSOLUTE risk also depends on cultivar and rootstock susceptibility, and on the number of flowers open. Infection risk may be overstated for first few days of bloom because fire blight bacteria may not have been distributed to open flowers. Cougarblight heat units are similar to degree hours base 60 F. NOTICE! - Fireblight infection can occur without rain if there is "heavy" dew. But "heavy" dew in relation to fireblight is not defined. As a rough guess, if there is no rain on a day, but leaf wetness is expected to exceed 3 hours for that day, then infection conditions are reported with "if dew" attached. Infection potential may be overstated on days when the "if dew" tag is attached. |
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| Range of
potential open-blossom dates Gray box indicates dates when most trees will have lost open blossoms and susceptibility to blossom infection. Gray box dates included for late cultivars and late-blooming young trees. |
Fire blight risk categories by block history | |||||
| I = No FB in the area during last two seasons requires 500+ heat units for HIGH! rating, 800+ for EXTREME! II = FB present in the area, but not within 1 mile of your orchard last year requires 400+ heat units for HIGH! rating, 650+ for EXTREME! III = FB in this orchard block or neighboring orchard last year requires 300+ heat units for HIGH! rating, 500+ for EXTREME! IV = Active FB strikes or cankers present in this or neighboring block requires 200+ heat units for HIGH! rating, 350+ for EXTREME! |
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| Inches Rain & Leaf Wet Hours & Heat Units |
No FB in area for last two years I |
FB in area last year, but over 1 mile away II |
FB last year within 1 mile III |
Currently active FB IV |
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| Wed, May 7 | 0.'', 0 hrs., 34 HU | 0 | 0 | 0 | 0 | |
| Thu, May 8 | 0.18'', 16 hrs., 51 HU | Low | Low | Low | Low | |
| Fri, May 9 | 0.51'', 16 hrs., 51 HU | Low | Low | Low | Low | |
| Sat, May 10 | 0.'', 8 hrs., 54 HU | Low | Low | Low | Low | |
| Sun, May 11 | 0.'', 0 hrs., 21 HU | 0 | 0 | 0 | 0 | |
| Mon, May 12 | 0.'', 0 hrs., 4 HU | 0 | 0 | 0 | 0 | |
| Tue, May 13 | 0.'', 0 hrs., 23 HU | 0 | 0 | 0 | 0 | |
| Wed, May 14 | 0.'', 0 hrs., 36 HU | 0 | 0 | 0 | 0 | |
| Thu, May 15 | 0.'', 0 hrs., 35 HU | 0 | 0 | 0 | 0 | |
| Fri, May 16 | 0.35'', 10 hrs., 35 HU | Low | Low | Low | Low | |
| Sat, May 17 | 0.57'', 11 hrs., 80 HU | Low | Low | Low | Low | |
| Sun, May 18 | 0.01'', 7 hrs., 82 HU | Low | Low | Low | Low | |
| Mon, May 19 | 0.'', 7 hrs., 82 HU | Low | Low | Low | Low | |
| Tue, May 20 | 0.39'', 9 hrs., 82 HU | Low | Low | Low | Low | |
| Wed, May 21 | 0.'', 10 hrs., 21 HU | Low | Low | Low | Low | |
| Thu, May 22 | 0.03'', 9 hrs., 3 HU | Low | Low | Low | Low | |
| Fri, May 23 | 0.'', 6 hrs., 62 HU | Low | Low | Low | Low | |
| Sat, May 24 | 0.'', 0 hrs., 111 HU | 0 | 0 | 0 | 0 | |
| Sun, May 25 | 0.'', 0 hrs., 193 HU | 0 | 0 | 0 | 0 | |
| Mon, May 26 | 0.'', 0 hrs., 215 HU | 0 | 0 | 0 | 0 | |
| Tue, May 27 | 0.14'', 16 hrs., 172 HU | Low | Low | Marginal | Marginal | |
| Wed, May 28 | 0.'', 3 hrs., 131 HU | Low | Low | Low | Marginal (if dew) |
|
| Thu, May 29 | 0.'', 0 hrs., 85 HU | 0 | 0 | 0 | 0 | |
| Fri, May 30 | 0.'', 0 hrs., 158 HU | 0 | 0 | 0 | 0 | |
| Sat, May 31 | 0.12'', 16 hrs., 144 HU | Low | Low | Low | Marginal | |
| Sun, June 1 | 0.'', 13 hrs., 269 HU | Low | Low | Marginal (if dew) |
HIGH! (if dew) |
|
| Mon, June 2 | 0.'', 0 hrs., 409 HU | 0 | 0 | 0 | 0 | |
| Tue, June 3 | 0.'', 0 hrs., 509 HU | 0 | 0 | 0 | 0 | |
| Wed, June 4 | 0.54'', 19 hrs., 516 HU | HIGH! | HIGH! | EXTREME! | EXTREME! | |
| Thu, June 5 | 0.'', 16 hrs., 384 HU | Low | Marginal (if dew) |
HIGH! (if dew) |
EXTREME! (if dew) |
|
| Fri, June 6 | 0.19'', 21 hrs., 205 HU | Low | Low | Marginal | HIGH! | |
| Sat, June 7 | 0.'', 12 hrs., 241 HU | Low | Low | Marginal (if dew) |
HIGH! (if dew) |
|
| Sun, June 8 | 0.'', 0 hrs., 714 HU | 0 | 0 | 0 | 0 | |
| Mon, June 9 | 0.'', 0 hrs., 1261 HU | 0 | 0 | 0 | 0 | |
| Tue, June 10 | 0.'', 0 hrs., 1737 HU | 0 | 0 | 0 | 0 | |
| Wed, June 11 | 0.'', 0 hrs., 1986 HU | 0 | 0 | 0 | 0 | |
| Thu, June 12 | 0.'', 0 hrs., 1801 HU | 0 | 0 | 0 | 0 | |
| Fri, June 13 | 0.'', 0 hrs., 1405 HU | 0 | 0 | 0 | 0 | |
| Sat, June 14 | 0.'', 1 hrs., 1143 HU | 0 | 0 | 0 | 0 | |
| Sun, June 15 | 0.39'', 24 hrs., 686 HU | HIGH! | EXTREME! | EXTREME! | EXTREME! | |
| Mon, June 16 | 0.75'', 10 hrs., 406 HU | Marginal | HIGH! | HIGH! | EXTREME! | |
| Tue, June 17 | 0.04'', 11 hrs., 403 HU | Marginal | HIGH! | HIGH! | EXTREME! | |